Post-doctorate researcher in Ecology and Agriculture

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Research questions

How do different facets of biodiversity affect the functioning and stability of (agro)ecosystems?

What are the roles of plant-plant interactions and functional traits in determining (agro)ecosystem functioning?

What are the drivers of the global distribution of crop species diversity ?

Can plant functional traits predict the multifunctionality of (agro)ecosystems ?

To address these questions, I assemble concepts, theories and tools from functional ecology, biogeography, agronomy and quantitative ecology. I mainly focus on cultivated ecosystems and their associated plant communities, including crop and weed species. My researches cover a range of spatio-temporal scales, from very local (e.g. plant-plant interactions) to global (e.g. global distribution of crop) and pluriannual (e.g. long-term ecosystem stability) scales.

Publications

Mahaut, L., Violle, C., Shihan, A., Pélissier, R., Morel, J.-B., de Tombeur, F., Rahajaharilaza, K., Fabre, D., Luquet, D., Hartley, S., Thorne, S. J., Ballini, E., & Fort, F. (2023). Beyond trait distances: Functional distinctiveness captures the outcome of plant competition. Functional Ecology, 37(9), 2399–2412. https://doi.org/10.1111/1365-2435.14397

Munoz, F., Klausmeier, C. A., Gaüzère, P., Kandlikar, G., Litchman, E., Mouquet, N., Ostling, A., Thuiller, W., Algar, A. C., Auber, A., Cadotte, M. W., Delalandre, L., Denelle, P., Enquist, B. J., Fortunel, C., Grenié, M., Loiseau, N., Mahaut, L., Maire, A., Mouillot, D., Violle, C. & Kraft, N. J. B. (2023). The ecological causes of functional distinctiveness in communities. Ecology Letters, 26(8), 1452–1465. https://doi.org/10.1111/ele.14265

Renard, D., Mahaut, L., & Noack, F. (2023). Crop diversity buffers the impact of droughts and high temperatures on food production. Environmental Research Letters, 18(4), 045002. https://doi.org/10.1088/1748-9326/acc2d6

Mahaut, L.,Choler, P., Denelle, P., Garnier, E., Thuiller, W., Kattge, J., Lemauviel-Lavenant, S., Lavorel, S., Munoz, F., Renard, D., Serra-Diaz, J. M., Viovy, N., & Violle, C. (2023). Trade-offs and synergies between ecosystem productivity and stability in temperate grasslands. Global Ecology and Biogeography, 32(4), 561–572. https://doi.org/10.1111/geb.13645

de Tombeur, F., Pélissier, R., Shihan, A., Rahajaharilaza, K., Fort, F., Mahaut, L., Lemoine, T., Thorne, S. J., Hartley, S. E., Luquet, D., Fabre, D., Lambers, H., Morel, J.-B., Ballini, E., & Violle, C. (2023). Growth-defence trade-off in rice: Fast-growing and acquisitive genotypes have lower expression of genes involved in immunity. Journal of Experimental Botany, 74(10), 3094–3103. https://doi.org/10.1093/jxb/erad071

Mahaut L., Pironon S., Barnagaud J.Y., Bretagnolle F., Khoury C.K., Mehrabi Z., Milla R., Phillips C., Rieseberg L.H., Violle C., Renard D. (2022). Matches and mismatches between the global distribution of major food crops and climate suitability. Proceedings of the Royal Soeciety-B.,289 (1983) https://doi.org/10.1098/rspb.2022.1542

Mahaut, L., Violle, C., & Renard, D. (2021). Complementary mechanisms stabilize national food production. Scientific Reports, 11(1), 4922. https://doi.org/10.1038/s41598-021-84272-z

Mahaut, L., Cheptou, P.-O., Fried, G., Munoz, F., Storkey, J., Vasseur, F., Violle, C., & Bretagnolle, F. (2020). Weeds: Against the Rules? Trends in Plant Science, 25(11), 1107–1116. https://doi.org/10.1016/j.tplants.2020.05.013

Mahaut, L., Fort, F., Violle, C., & Freschet, G. T. (2020). Multiple facets of diversity effects on plant productivity: Species richness, functional diversity, species identity and intraspecific competition. Functional Ecology, 34(1), 287–298. https://doi.org/10.1111/1365-2435.13473

Munoz, F., Fried, G., Armengot, L., Bourgeois, B., Bretagnolle, V., Chadoeuf, J., Mahaut, L., Plumejeaud, C., Storkey, J., Violle, C., & Gaba, S. (2020). Ecological Specialization and Rarity of Arable Weeds: Insights from a Comprehensive Survey in France. Plants-Basel, 9(7). https://doi.org/10.3390/plants9070824

Delphine Renard & Lucie Mahaut (2019). De nouveaux éléments en faveur de la diversification (New evidence in favor of crop diversification). Perspectives Agricoles

Mahaut L., Gaba S., Fried G., 2019. A functional diversity approach of crop sequences reveals that weed diversity and abundance show different responses to environmental variability. Journal of Applied Ecology. 56 (6): 1400-1409. doi: 10.1111/1365-2664.13389

Bourgeois B., Munoz, F., Fried, G., Mahaut, L., Armengot, L., Denelle, P., Storkey, J., Gaba, S., Violle, C., 2019. What makes a weed a weed? A large-scale evaluation of arable weeds through a functional lens. American Journal of Botany.106 (1): 90-100. doi: 10.1002/ajb2.1213

Fried G., Carboni M., Mahaut L., Violle C., 2019. Functional traits modulate plant community responses to alien plant invasion. Perspectives in Plant Ecology Evolution and Systematics. 37: 53-63. doi: 10.1016/j.ppees.2019.02.003

Mahaut L.,Fried G., Gaba S. 2018. Patch dynamics and temporal dispersal partly shape annual plant communities in ephemeral habitat patches. Oikos.127: 147-159. doi: 10.1111/oik.04415

Fried G., Mahaut L., Pinston A., Carboni M., 2018.Abiotic constraints and biotic resistance control the establishment success and abundance of invasive Humulus japonicus in riparian habitats. Biological Invasions.20 (2): 315-331. doi: 10.1007/s10530-017-1533-y

Mots-clés :
Interdisciplinarity, Chemical ecology, Sensory ecology, Specialized metabolism, Volatile organic compounds, Plant-insect interactions, Pollination ecology, Adaptation of interactions to global change, Atmospheric pollution, fig-fig wasp interactions, Mediterranean region, Tropical Region.

Mes recherches portent sur les interactions interspécifiques, plus particulièrement entre plantes et insectes. Mes projets de recherche s´intègrent dans le domaine de l´écologie chimique. En favorisant une approche interdisciplinaire combinant la chimie analytique, l’écologie comportementale, la physiologie sensorielle et la biologie évolutive, j’ai étudié le rôle de la médiation chimique, particulièrement via les composés organiques volatils (COVs), dans le fonctionnement d’interactions de différents types : pollinisation, herbivorie, parasitisme et reconnaissance entre partenaires sexuels. Je travaille aussi bien dans des écosystèmes méditerranéens que tropicaux.

My research focuses on interspecific interactions, particularly between plants and insects. My research projects are in the field of chemical ecology. Favoring an interdisciplinary approach combining analytical chemistry, behavioral l ́ecology, sensory physiology and evolutionary biology, I have studied the role of chemical mediation, particularly via volatile organic compounds (VOCs), in the functioning of different types of interactions: pollination, herbivory, parasitism and recognition between sexual partners. I work in both Mediterranean and tropical ecosystems.

Thématiques français

Je consacre une partie de mes activités de recherche à la caractérisation des mécanismes évolutifs impliqués dans la nature des messagers chimiques ainsi que la détection de ces composés dans les interactions plantes-pollinisateurs. L’autre axe de mes recherches porte sur l ́impact des changements environnementaux globaux, principalement climatiques et de concentrations en polluants atmosphériques, sur la communication chimique plantes-pollinisateurs. Ces deux axes de recherches sont abordés de manière originale et intégrative car je m’intéresse aussi bien aux pressions de sélections qu’aux sources de variations proximales qui peuvent affecter l’émission des COVs, leur stabilité dans l’atmosphère que leur détection par les pollinisateurs. Une originalité forte de mon approche est que je cherche à connecter différentes disciplines afin d’étudier conjointement les deux fonctions principales des COVs émis par les plantes : défenses contre des stress (abiotiques et biotiques) et reproduction.

Anglais

I dedicate part of my research activities to characterizing the evolutionary mechanisms involved in the nature of chemical messengers and the detection of these compounds in plant-pollinator interactions. The other part of my research focuses on the impact of global environmental changes, mainly climatic and atmospheric pollutant concentration changes, on plant-pollinator chemical communication. These two areas of research are approached in an original and integrative way, as I am interested in both selection pressures and sources of proximal variations that can affect the emission of VOCs, their stability in the atmosphere and their detection by pollinators. A strong originality of my approach is that I attempt to connect different disciplines in order to jointly study the two main functions of VOCs emitted by plants: defense against stresses (abiotic and biotic), and reproduction.

Projects since 2019

POLLURISK project, MUSE (Montpellier University of Excellence): Impact of ozone POLLUtion, in the context of climate change, on plant-pollinator chemical communication: RISQue pour la résilience des services écosystémiques (2018-2022, 150 k€, PI).

ExpOz project, ANSES: Determination of ozone exposure threshold values for the resilience of plant-insect chemical communication (2019-2022, 200 k€, PI).

Partners: IMBE; LCE; LBVpam; FLP-UAE (Morocco).

The aim of these two projects was to characterize the effect of ozone pollution (O₃) on chemical communication in two types of plant-pollinator interactions: the highly specialized and obligatory interaction between the cultivated fig tree and its pollinating wasp, and the generalist interaction between lavender and the honey bee. At the end of this project, we will define tolerance thresholds for the resilience of these two interactions to a major pollutant.

IRP Chine MOST project, CNRS-INEE: "Figs and fig-wasps: a model system to investigate biotic interaction network responses to global change" (2018-2022 then 2025-2029, 100 k€, PI). Partners: XTBG ; SCBG.

The aim of the IRP was to generate basic knowledge on the impact of increasing levels of carbon dioxide (CO₂) and O₃on the stability of interaction networks and, more specifically, on the ecosystem services of pollination. For this, we used a model system, the specific mutualism between Ficus and fig insects. We studied how insects' attraction to the VOCs produced by their specific host plant was affected by high concentrations of O₃and CO₂through comparative studies conducted between three regions with high and variable tropospheric O₃ concentrations, southern France, southern Yunnan and Guangdong.

Chime2 project, PRIME 80 CNRS-INEE-IC: Biochemical constraints and ecological selection pressures in the evolution of volatile organic compounds responsible for pollinator attraction (2019-2022, 150 k€, PI) Partners: XTBG; LBVpam ; ICN.

The main objective of this project was to understand the evolutionary dynamics of floral VOC emission. Using fig trees, the aim was to understand the involvement of biochemical constraints, linked to volatile biosynthesis pathways, as well as ecological selection pressures in the establishment of VOCs responsible for attracting specialized pollinators. This approach will enable more general conclusions to be drawn on the mechanisms of co-evolution and co-adaptation at the level of chemical communication in plant-pollinator mutualistic interactions.

ASPI project, ANSES: Wild bees in the city: effects of urban pollutants on insect health and plant-pollinator interactions (2020-2024, 200 k€, WP manager). Partners: EEP; University of Mons (Belgium).

Thisproject aims to understand the effects of exposure of wild pollinators to urban pollutants (PAHs and phthalates), by combining several approaches. This will involve: (Axis 1) determining the nature and levels of contamination of wild bees living in cities (Axis 2) exploring the effects of living in low vs. highly polluted sites on pollinator health, the attractiveness of floral resources and the quality of pollen produced (Axis 3) characterizing the individual and colonial effects of exposure under controlled conditions to realistic mixtures of families of these contaminants.

COMIX project, French Embassy in China: Comparative study of the effect of O₃ concentration on the behavior of different species of fig tree pollinators (2019-2020, 13 k€, PI). Partners: XTBG; SCBG (China).

The aim of the project was to compare the sensitivity of different species of fig pollinators to different concentrations of O₃.

PolluCom project, ANR: "Effects of ozone pollution on plant-pollinator chemical communication under global warming, consequences for their interactions" (2023-2026, 702 k€, PI) Partners: LBVpam; IEES and Ecotron de Montpellier.

The aim of this project is to test the individual and combined effects of the two stress factors, O₃and temperature, on two pollination systems with different levels of specialization and with a focus on studying the mechanisms of action of O₃, using a broadly interdisciplinary approach. Both environmental stressors are expected to have an impact on plant and pollinator physiology, affecting, respectively, the emission of VOCs and their perception. These effects would emerge in particular from changes in the expression of genes involved in VOC biosynthesis and olfaction. We predict that these changes will disrupt plant-pollinator chemical communication and thus their interaction, with the generalist pollination system being more resilient than the specialist.

BeeMed project, ANSES: Resilience of bees to global changes through the prism of self-medication (2023-2025, 200 k€, P). Partners: ECOBIO; IMBE.

This project aims to define the capacity of different wild bee species to adapt to air pollution and climate change. More specifically, we will test the nutritional and self-medication resilience of bees by considering the spatiotemporal heterogeneity of environmental stressors and characterizing antioxidant resources within flowering plant pollen.

IRP Thailand SPECIFLY, CNRS-INEE project: "Characterization little-known of biodiversity: Ecology and evolution of specialized pollination by flies" (2023-2027, 10k€/year P). Partner: Chulalongkorn University.

This project aims to compare pollinator attraction strategies in two phylogenetically distant plant genera,Ceropegia (Thailand) andAristolochia (France), some of whose species have converged on the same deceptive pollination strategy. In addition to establishing a solid collaboration with the Thai team, this project opens up new prospects for understanding the factors governing the evolution of floral specialization.

Air pollution project, CAS: "Effects of air pollution on chemical communication between species - a case study of figs and fig wasps".  (2023-2026, 400 k€/ WP manager).  Partner: SCBG.

The aim of the project is to provide basic knowledge on the impact of air pollution on the stability of the interaction network between insects and plants. To this end, the effects of major pollutants (O₃, NO_X) on fig odor and the response of fig wasps to this variation in the Guangdong-Hong Kong-Macao Bay regionwill be investigated.

IRN China project, Virtual Institute on Biodiversity, CAS-CNRS (2024-2028, 15k€/year PI). Partners:  researchers from 25 different units.

The virtual institute comprises a steering committee and around 15 pairs of principal investigators from CAS and CNRS institutes. The main objective of this IRN is to strengthen and develop Franco-Chinese collaboration on various aspects of biodiversity research through a network of scientists from both countries, and to set up an educational program for young scientists.

Blastosome project, Exposome-CNRS: A novel component of the fig exposome: its pollinator, the blastophage (2025-2026, 25k€ PI). Partners CRBM Montpellier (CNRS-INSB).

Our project is to study the disruptive effect of ozone pollution and rising temperatures on fig tree-blastophaga-Wolbachia-nematode interactions. We will draw on the complementary skills of a CNRS Biology team specializing in Wolbachia, nematodes and insect reproduction, and a CNRS Ecology & Environment team specializing in the chemical ecology and evolutionary biology of the Ficus-pollinator system.

Liste de publications

Blatrix R., Kidyoo A., Matrougui I., Samsungnoen P., McKey D., Proffit M., 2024. Mechanical stimulation of the stigmas triggers switch from female to male phase in the protogynous trap flower of Aristolochia rotunda (Aristolochiaceae). Mediterranean Botany, 45, e85906. https://doi.org/10.5209/mbot.85906

Dubuisson C, Worthan H, Garinie T, Hossaert-McKey M, Lapeyre B, Buatois B, Temime-Roussel B, Ormeño E, Staudt M, Proffit M. 2024. Ozone alters the chemical signal required for plant – insect pollination: the case of the Mediterranean fig tree and its specific pollinator. Science of the total environment 827.

Démares F, Gibert L, Lapeyre B, Creusot P, Renault D, Proffit M. 2024. Ozone exposure induces metabolic stress and olfactory memory disturbance in honey bees. Chemosphere, 140647.

Hmimsa Y, ·Ramet A, · Dubuisson C, · El Fatehi S, Hossaert-McKey M, · Kahi H, · Munch J, · Proffit M, · Salpeteur M, ·  Aumeeruddy-Thomas Y. 2024. Pollination of the Mediterranean fig tree, Ficus carica L.: Caprification practices and social networks of exchange of caprifigs among Jbala Farmers in Northern Morocco. Human Ecology 52, 289–302

Kidyoo A., Kidyoo M., Ekkaphan P., Blatrix R., McKey D, Proffit M., 2024. Specialized pollination by cecidomyiid flies and associated floral traits in Vincetoxicum sangyojarniae (Apocynaceae, Asclepiadoideae). Plant Biology, 26, 166-180. https://doi.org/10.1111/plb.13607

Cao L, Hmimsa Y, El fatehi S, Buatois B, Dubois MP, Le Moigne M, Hossaert‑McKey M, Aumeeruddy‑Thomas Y, Bagnères AG, Proffit M. 2023. Floral scent of the Mediterranean fig tree: significant inter‑varietal difference but strong conservation of the signal responsible for pollinator attraction. Scientific Reports | (2023) 13:5642 https://doi.org/10.1038/s41598-023-32450-6

Deng X, Buatois B, Peng YQ, Yu H, Cheng Y, Ge X, Proffit M, Kjellberg F. 2023. Plants are the drivers of geographic variation of floral odours in brood site pollination mutualisms: a case study of Ficus hirta. Acta Oecologica, 121,103952.

Fernandez C, Saunier A, Wortham H, Ormeño E, Proffit M, Lecareux C, Greff S, Van Tan D, Tuan MS, Hoan HD, et al. 2023. Mangrove’s species are weak isoprenoid emitters. Estuarine, Coastal and Shelf Science 283: 108256.

Demares F, Gibert L, Creusot P, Lapeyre B, Proffit M. 2022. Acute ozone exposure impairs detection of floral odor, learning, and memory of honey bees, through olfactory generalization. Science of the total environment 827.

Dubuisson C, Nicolè F, Buatois B, Hossaert-Mckey M, Proffit M. 2022. Tropospheric ozone alters the chemical signal emitted by an emblematic plant of the mediterranean region: the true lavender (Lavandula angustifolia Mill.). Frontiers in Ecology and Evolution, 10, ff10.3389/fevo.2022.795588ff. ffhal-03871592f

Kidyoo A., Kidyoo M., McKey D., Proffit M., Deconninck G., Wattana P., Uamjan N., Ekkaphan P., Blatrix, R., 2022. Pollinator and floral odor specificity among four synchronopatric species of Ceropegia (Apocynaceae) suggests ethological isolation that prevents reproductive interference. Scientific Reports, 12, 13788. https://doi.org/10.1038/s41598-022-18031-z

Kidyoo A, Kidyoo M, Blatrix R, Deconninck G, McKey D, Ekkaphan P, Proffit M. 2021. Molecular phylogenetic analysis and taxonomic reconsideration of Ceropegia hirsuta (Apocynaceae, Asclepiadoideae) reveal a novelty in Thailand, Ceropegia citrina sp. nov., with notes on its pollination ecology. Plant systematics and evolution 307.

Vanderplanck M., Lapeyre B., Brondani M., Opsommer M., Dufay M., Hossaert-McKey M., Proffit M. 2021. Ozone pollution alters olfaction and behavior of pollinators. Antioxidants 2021, 10, 636. https://doi.org/10.3390/antiox10050636

Vanderplanck M, Lapeyre B, Lucas S, Proffit M. 2021. Ozone induces distress behaviors in fig wasps with a reduced chance of recovery. INSECTS 12.

Dormont L, Fort T, Bessiere J, Proffit M, Hidalgo E, Buatois B, Schatz B. 2020. Sources of floral scent variation in the food-deceptive orchid Orchis mascula.Acta oecologica 107.

Proffit M., LapeyreB., Buatois B., Deng X.X., Arnal P., Gouzerh F., Carrasco D., Hossaert-McKey M. 2020. Chemical signal is in the blend: bases of plant-pollinator encounter in a highly specialized interaction. Scientific Reports 10:10071

Conchou L., Lucas P., Meslin C., Proffit M., Staudt M., Renou M. 2019. Insect odorscapes: from plant volatiles to natural olfactory scenes. Frontiers in Physiology, 10:972. doi: 10.3389/fphys.2019.00972 

Carrasco D.^*, Desurmont G.A.^*, Laplanche D., Proffit M., Gols R., Becher P.G., Larsson M.C., Turlings T.C.J., Anderson P. 2018. With or without you: effects of the concurrent range expansion of an herbivore and its natural enemy on native species interactions. Global Change Biology, 24(2):631-643.

Proffit M., Bessière J.M., Schatz B., Hossaert-McKey M. 2018. Can fine-scale post-pollination variation of fig volatile compounds explain some steps of the temporal succession of fig wasps associated with Ficus racemosa? Acta Oecologica, https://doi.org/10.1016/j.actao.2017.08.009.

Souto-Vilarós D., Proffit M., Buatois B., Rindos M., Sisol M., Kuyaiva T., Michalek J., Darwell C.T. , Hossaert-McKey M., Weiblen G. D. , Novotny V., Segar S.T. 2018 Pollination along an elevational gradient mediated both by floral scent and pollinator compatibility in the fig and fig-wasp mutualism. Journal of Ecology, 106:2256-2273.

Karlsson M.F., Proffit M., Birgersson. 2017. Host-plant location by the Guatemalan potato moth Tecia solanivora is assisted by floral volatiles.Chemoecology. 27(5):187-198.

Santonja M., Fernandez C., Proffit M., Gers C., Gauquelin T., Reiter I.M., Cramer W., Baldy V. 2017. Plant litter mixture partly mitigates the negative effects of extended drought on soil biota and litter decomposition in a Mediterranean oak forest. Journal of Ecology, doi: 10.1111/1365-2745.12711.

Hossaert-McKey M., Proffit M., Soler C., Chen C., Bessière J.M., Schatz B., Borges R.M. (2016). How to be a dioecious fig: Chemical mimicry between sexes matters only when both sexes flower synchronously. Scientific Reports 6, 21236.

Kjellberg F., Proffit M. (2016). Tracking the elusive history of diversification in plant-herbivorous insect-parasitoid food webs: insights from figs and fig-wasps.Molecular Ecology, 25, 843-845.

Proffit M., Khallaf M., Carrasco D., Larsson M. & Anderson P. (2015). Do you remember the first time? Host plant preference in a moth is modulated by experiences during larval and adult mating.Ecology Letters, 18, 365-374.

Schatz B., Proffit M., Kjellberg F., Hossaert-McKey M. (2013). Un réseau trophique complexe: le cas des figuiers associés à différentes communautés d’insectes.in : Des insectes et des plantes. Ed. Quae.

Charpentier M.J.E., Barthes N., Proffit M., Bessière J.M., Buatois B., Grison C. (2012). Critical thinking in the chemical ecology of mammalian communication: Roadmap for future studies.Functional Ecology, 26, 769-774.

Clavijo McCormick A.L., Karlsson M.F., Bosa C.F., Proffit M., Bengtsson M., Zuluaga M.V., Fukumoto T., Oehlschlager C., Cotes Prado A.L., Witzgall P. (2012). Mating disruption of Guatemalan Potato Moth Tecia solanivora by attractive and non-attractive pheromone blends.Journal of Chemical Ecology, 38, 63-70.

Cornille A., Underhill J.G., Cruaud A., Hossaert-McKey M., Johnson S.D., Tolley K.A., Kjellberg F., van Noort S., Proffit M. (2012). Floral volatiles, pollinator sharing and diversification in the fig–wasp mutualism: insights from Ficus natalensis, and its two wasp pollinators (South Africa).Proceedings of the royal society-B, 279, 1731-1739.

Soler C., Proffit M., Bessière J.M., Hossaert-McKey M., Schatz B. (2012). When males change their scents in presence of females, the case of the plant Ficus carica.Ecology letters, 15, 978-985.

Witzgall P., Proffit M., Rozpedowska E., Becher PG., Andreadis S., Coracini M., Lindblom TU., Rearn LJ., Hagman A., Bengtsson M., Kurtzman CP., Piskur J., Knight A. (2012). "This is not an Apple"-yeast mutualism in codling moth.Journal of Chemical Ecology, 38, 949-957.

Proffit M., Birgersson G., Bengtsson M., Witzgall P., Lima E. (2011). Attraction and oviposition of Tuta absoluta females (Lepidoptera: Gelechiidae) in response to tomato leave volatiles.Journal of Chemical Ecology, 37, 565-574.

Soler C., Hossaert-McKey M., Buatois B., Bessière J.M., Schatz B., Proffit M. (2011). Geographic variation of floral scent in a highly specialized pollination mutualism.Phytochemistry, 72, 74-81.

Hossaert-McKey M., Soler C., Schatz B., Proffit M. (2010). Floral scents: their roles in nursery pollination mutualisms.Chemoecology, 20, 75-88.

Soler C., Proffit M., Chen C., Hossaert-McKey M. (2010). Private channels in plant-pollinator mutualisms. Plant Signaling & Behavior, 7, 893-895.

Chen C., Song Q., Proffit M., Bessière J.M., Li Z., Hossaert-McKey M. (2009). Private channel: a single unusual compound assures specific pollinator attraction in Ficus semicordata.Functional Ecology, 23, 941-950.

Proffit M., Chen C., Soler C., Bessière JM., Schatz B., Hossaert-McKey M. (2009). Can chemical signals responsible for mutualistic partner encounter promote the specific exploitation of nursery pollination mutualisms? – The case of figs and fig wasps.Entomologia Experimentalis et Applicata, 131, 46-57.

Proffit M., Johnson S.D. (2009). Specificity of the signal emitted by figs to attract their pollinating wasps: Comparison of the volatile organic compounds produced by receptive syconia of Ficus sur and F. sycomorus in Southern Africa. South African Journal of Botany, 75, 771-777.

Proffit M., Schatz B., Bessière J.M., Chen C., Soler C., Hossaert-McKey M. (2008). Signalling receptivity: comparison of the emission of volatile compounds of figs of Ficus hispida before, during and after the phase of receptivity to pollinators.Symbiosis 45, 15-24.

Roy M., Dubois M.P., Proffit M., Vincenot L., Desmarais E., Selosse M.A. (2008). Evidence from population genetics that the ectomycorrhizal basidiomycete Laccaria amethystina is an actual multihost symbiont.Molecular Ecology 17, 2825-2838.

Proffit M., Schatz B., Borges R.M., Hossaert-McKey M. (2007). Chemical mediation and niche partitioning in non-pollinating fig-wasp communities.Journal of Animal Ecology 76, 296-303.

Schatz B., Proffit M., Rakhi B.V., Borges R.M., Hossaert-McKey M. (2006). Complex interactions on fig trees: ants capturing parasitic wasps as indirect mutualists of the fig-fig wasp interaction.Oikos 113, 344-352.

Assistant Ingénieur, Université de Montpellier

Je cherche à mettre en évidence par des techniques analytiques et séparatives (CLHP, CCM, Chromatographie Flash) des molécules d’intérêts biologiques d’origine fongique et végétale. En parallèle, je participe à la constitution d’une extractothèque ( Basidiomycota / Ascomycota).

Sur le terrain, je participe à la récolte de Macromycètes pour la recherche et pour l’enseignement de la mycologie aux étudiants de la faculté de pharmacie.

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 Mots-clés

Organismes biologiques : champignons, macromycètes, plantes
Milieu : Méditerranéen
Disciplines : Mycologie, Phytochimie
Techniques : analyses chimiques et biologiques, chimie extractive
Autres mots clés : extractothèque, médiation chimique

 Laboratoire de Botanique, Phytochimie et Mycologie
Faculté de Pharmacie
BP 14491
15 av. Charles-Flahault
F-34093 Montpellier cedex 5
 
Tél : +33 (0) 4 11 75 96 61
Fax : +33 (0) 4 11 75 97 24

Publications

Morel S., Fons F., Rapior S., Dubois V., Vitou M., Portet K., Doré J.C. et Poucheret P.(2016). Decision-making for the detection of amatoxin poisoning: a comparative study of standard analytical methods. Cryptogamie, Mycologie, 37 (2), 1-23 (2016).

Directeur de Recherche (DR2)

CNRS Researcher 

CEFE/CNRS
Campus du CNRS
1919, route de Mende
34293 Montpellier cedex 5

Tél : +33 (0)4 67 61 32 89
Fax : +33 (0)4 67 61 33 36

xavier dot morin @ cefe dot cnrs dot fr

HDR : Impact des changements globaux sur la biodiversité et le fonctionnement des écosystèmes forestiers - soutenue le 11/2/2021
Lien : HDR Xavier Morin

Thèmes de recherche

(English follows)

Mes travaux cherchent à parvenir à une meilleure compréhension du déterminisme de la diversité végétale aux différentes échelles spatiales et temporelles, sa réponse aux changements futurs, et son rôle dans le fonctionnement des écosystèmes forestiers. En particulier, je cherche donc à comprendre et prédire comment la biodiversité des écosystèmes forestiers s’organise selon différentes échelles spatiales, comment elle sera modifiée par les changements globaux, et quelles en seront les conséquences sur le fonctionnement de ces écosystèmes. Pour ce faire j’essaie de développer une approche intégratrice basée sur les processus. Mes travaux se focalisent principalement sur les espèces d'arbres et arbustes. Pour mener à bien ces objectifs, j’utilise aussi bien des résultats issus d’expérimentation, d’observations le long de gradients écologiques in situ, et de modélisation.

Directeur de recherche (DR IRD)

CEFE/CNRS
Campus du CNRS
1919, route de Mende
34293 Montpellier 5

tél :  +33 (0)4 67 61 33 53
fax : 33 (0)4 67 61 33 36

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Thèmes de recherche

Mes travaux portent principalement sur la modélisation de la dynamique et du fonctionnement des écosystèmes végétaux naturels terrestres à différentes échelles.

 Technicien, Université de Montpellier

 Etude in situ des médiateurs chimiques des plantes (métabolites phénoliques surtout), intervenant lors de stress biotiques (modèle Leonardoxa/fourmis ; Coffea/Nématodes ; Oriza/Nématodes ; Vitis/Eutypa …) ou abiotiques (détection de l'activité herbicide sur des graminées nuisibles…), ainsi que lors de variations du milieu ou lors de variations physiologiques (cycle végétatif du caféier, exposition aux rayonnements UV de Caféiers et de Centella asiatica …)

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Mots-clés :
Organisme biologique : plantes (Centella, Coffea, Leonardoxa, Oriza, Vitis,  …)
Milieu : méditerranéen et tropical
Discipline : Ecologie chimique
Technique :  histochimie, microspectrofluorimétrie
Thématique : médiation chimique in situ
Autres mots clés : Plantes et stress, coévolution

Laboratoire de Botanique, Phytochimie et Mycologie
Faculté de Pharmacie
BP 14491
15 av. Charles-Flahault
F-34093 Montpellier cedex 5
Tél : +33 (0) 4 11 75 96 62
Fax : +33 (0) 4 11 75 97 24

Publications

Campa C., Urban L. , Mondolot L. , Fabre D. , Roques S. , Yves Lizzi Y. , Aarrouf J. , Doulbeau S , Breitler J.- C. , Letrez C. , Toniutti L. , Bertrand B. , La Fisca P. , Bidel L. P. R. Etienne H., 2017 - Juvenile Coffee Leaves Acclimated to Low Light are Unable to Cope with a Moderate Light Increase.Frontiers in Plant Science8: 1126

Bidel L. P. R., Chomicki G., Bonini F., Mondolot L., Soulé J., Coumans M., La Fisca P., Baissac Y., Petit V., Loiseau A., Cerovic Z.G., Gould K. S., Jay-Allemand C. 2015 - Dynamics of flavonol accumulation in leaf tissues under different UV-B regimes in Centella asiatica (Apiaceae). Planta 242 : 545-559.

Campa C., Mondolot L., Rakotondravao A., Bidel L. P. R., Gargadennec A., Couturon E., La Fisca P., Rakotomalala J.-J., Jay-Allemand C. & Aaron Davis P. 2012 - A survey of mangiferin and hydroxycinnamic acid ester accumulation in coffee (Coffea) leaves: biological implications and uses. Annals of botany 110, 595-613.

Blatrix R., Djiéto-Lordon C., Mondolot L., La Fisca P., Voglmayr H. & McKey D. 2012 - Plant-ants use symbiotic fungi as a food source: new insight into the nutritional ecology of ant–plant interactions. Proc. R. Soc. B. 279, 3940–3947.

Guinot P., Gargadennec A., La Fisca P., Fruchier A., Andary C. & Mondolot L. 2009 - Serratula tinctoria, a source of natural dye: flavonoid pattern and histolocalization. Industrial Crops and Products 29: 320-325.

Mondolot L., La Fisca P., Buatois B., Talansier E., de Kochko A. & Campa C. 2006 - Evolution in caffeoylquinic acid content and histolocalization during Coffea canephora leaf development. Annals of Botany, 98: 33-40.

 Communications orales

Mathonnet N., Rakotomolala J.J., Mondolot L., Rakontodravao A., La Fisca P., Hamon P.,

Gargadennec A., De Kochko A., Campa C. Composés phénoliques et Biodiversité dans le genre Coffea. Ecologie 2010 – Colloque National d’Ecologie Scientifique (2-4/09/2010 – Montpellier - France)

Fons F., Goetz C., La Fisca P., Mondolot L., Rapior S. Composés phénoliques d’Asteraceae comestible : histolocalisation et analyse par chromatographie sur couche mince, 1er Colloque d’Ecologie Scientifique. Session 49 : Les Substances Naturelles, un point de convergence fondamental entre Ecologie Chimiques et Chimie Ecologique. (2-4/09/2010 – Montpellier – France)

Mondolot L., La Fisca P., Gosset R., Guinot P., Andary C., Campa C. Localisation in situ et analyse Microspectrofluorimétrique des composés phénoliques végétaux : une approche complémentaire des analyses chimiques. Symposium sur les composés phénoliques « nutraceutiques et médicaments (17-18/12/2009 – Agadir – Maroc)

Communications affichées

Berkaoui S., Marodon C., La Fisca P., Palissier Y., Mondolot L. Etudes micrométriques et anatomiques : Pittosporum senacia, Coffea mauritiana, Vepris lanceolata. Etude de plantes réunionnaises d’usage médicinal traditionnel inscrites à la Pharmacopée Française . Congrès International du CIPAM (Colloque International sur les Plantes Aromatiques et Médicinales). 9 ème édition « Pharmacopées tradiotionnelles, de la recherche à la valorisation » (7-12/11/2016 ; Cayenne, Guyane). Prix excellence décerné par le jury. 

Campa C., Bidel L. P. R., Morel S., Rokotondravao A., La Fisca P., Mondolot L. Mangiferin distribution among Coffea species. 2ème Symposium International AFERP-STOLON, (15-17/07/ 2015 - Lyon,France)

Villain L., Martinez D., Mondolot L., La Fisca P., Nicole M., Campa C. Histological, Histochemical and Phytochemical Characterization of Coffea spp. Resistance to the Root-Knot Nematode Eloidogyne paranaensis. The 25th International Conference on Coffee Science (8-13/09/2014; Armenia, Colombie)

Masson A-S., Campa C., Mondolot L., La Fisca P., Rouve E., Anthony F., Aribi J., Lambou K., Bellafiore S. Histological, histochemical and biochemical characterizations of Oryza glaberrima resistance to the root-knot nematode Meloidogyne graminicola. Bio-Asia & ICT-Asia Regional Workshop (4-5/6 2014; Jakarta, Indonésie)

La Fisca P., Roussel J-L., Mondolot L. Le Neem, arbre aux propriétés insecticides ancestrales et l’avenir. 31 ème Salon des champignons et plantes d’automne. (22-23/10/2011; Montpellier, France)

Galvaing E., Bidel L.P.R., La Fisca P., Mondolot L., Campa C. Stress UV-B et mobilisation de composés anti-oxydants foliaires chez : Coffea canaphora Pierre (Robusta) et Coffea pseudozanguebariae (Bridson).   21 ème Journées scientifiques de Stolon. (1-2/09/2011 ; Clermont-Ferrand , France)

Fons F., Bessière J.M., La Fisca P., Rapior S. Les arômes fruités chez les chanterelles. Journée « Extrait naturels tirer le meilleur du végétal ». Transfert Languedoc-Roussillon /Pôle qualiMéditerrannée / Agropolis International (05/04/2011 ; Montpellier , France).

Ingénieur d'étude, bioinformaticien (2017 - 2021)

Diplômé du master professionnel double compétence informatique et biologie de l’Université Paris Diderot, j'apporte mes compétences en programmation pour de nombreux projets scientifiques en collaboration avec des équipes de recherche.

CEFE/CNRS
Campus du CNRS
1919, route de Mende
34293 Montpellier 5

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• website:https://guerinpe.com/

Directeur de Recherche au CNRS (DR2)

CEFE/CNRS
Campus du CNRS
1919, route de Mende
34293 Montpellier cedex 5

tél : +33 4 67 61 33 07
fax: +33 4 67 41 21 38

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Thématique de recherche

Je développe un travail d’écologie évolutive qui vise à analyser les traits d'histoire de vie chez les plantes (systèmes de reproduction, traits floraux, dispersion). L’accent est mis l'accent sur l'importance de la dynamique écologique (dynamique des métapopulations, démographie) comme un processus de sélection dans l'évolution contemporaine. Mon approche combine (1) Analyse des patrons d’adaptation et méthodes d’inférence des traits d’histoires de vie dans les métapopulations de plantes, en milieu naturel (2) élaboration de modèles formels en écologie évolutive (3) expérimentations et tests d’hypothèses en conditions contrôlées.

Most-clés :Métapopulation-traits d'histoire de vie-Ecologie évolutive théorique-dispersion-systèmes de reproduction-plasticité-Epigénétique

PhD student

CNRS-CEFE

1919, route de Mende
34293 Montpellier 5
France
Office 105C

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PhD thesis subject (2024-2027): Drought effects on carbon assimilation and allocation in living tree biomass in forests

Supervisors: Jean-Marc Limousin (CNRS-CEFE) and Maxime Cailleret (INRAE-RECOVER)

Forests are a major player in the global carbon (C) cycle and at the heart of the climate change mitigation initiatives of the 2015 Paris Agreement, but models strongly disagree on the projection of this C sink under future climate change. Our current understanding of climate change effects on forest’s carbon sequestration is limited by uncertainties around the allocation of carbon among the different tree organs and the link between carbon photosynthetic assimilation and sequestration in perennial tree biomass.

The main objectives of this PhD thesis are to quantify how the C allocation in tree biomass changes among the different organs (wood, roots, leaves and reproductive organs) in response to increasing water stress and decreasing C assimilation. The research project will use both the results of five long-term rainfall manipulation experiments set in different forest ecosystems (three Mediterranean forests in Southern France, one temperate forest in North-Eastern France, and one eucalypt plantation in Brazil), and of carbon fluxes measured by eddy covariance in different forest sites within the ICOS network, to study the experimental and inter-annual effects of changing water availability. It will involve the analysis and synthesis of existing data and the collection of new data using homogenized and innovative protocols in every site, especially regarding the belowground compartment that is generally understudied in forest ecosystems.

The thesis will be articulated around three main research axes: i) improve our understanding of the link between photosynthetic C uptake and wood stem growth; ii) investigate the effects of drought on tree architecture and C allocation among the different aerial tree organs; iii) quantify belowground C allocation and its response to drought.

Directeur de Recherche au CNRS / Senior Scientist at CNRS

J'étudie la dynamique des populations sauvages et développe à cette fin des méthodes statistiques.

I study the dynamics of wild populations and develop appropriate statistical methods.

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Directrice de recherche au CNRS - section 39
Ethnoécologue / géographe

Responsable de l'équipe Interactions bioculturelles
Chercheure associée à l'UMR CREDO et l’UMR SENS

A travers un engagement ethnographique avec les agriculteur·rices, je cherche à décrire et comprendre les relations des humains avec leurs plantes, leur rapport à l’espace ou au lieu, et plus largement le rôle des organisations sociales et des institutions dans l’élaboration et la transformation de ces relations. Mes objectifs sont de comprendre comment (i.e. savoirs, ontologies et pratiques) et pourquoi (i.e. valeurs instrumentales, intrinsèques et surtout relationnelles), les agriculteur·rices gèrent, maintiennent et expérimentent une diversité de variétés et d’espèces. J’ai particulièrement étudié, à l’aide d’analyses de réseaux sociaux, les modalités de circulation des plantes et des connaissances associées. Plus récemment, mon objectif est d’identifier les valeurs de bien-être bioculturel chez les agriculteur·rices d’Océanie et de France (vigneron·nes), ainsi que les processus sociaux, écologiques et politiques générateurs d’un vignoble et de vin de « qualité » en Occitanie.

Mes travaux se déclinent ainsi en cinq thèmes : (1) Savoirs hybrides et classification des plantes ; (2) Valeurs associées à l’agrobiodiversité ; (3) Circulation des semences et des savoirs ; (4) Bien-être des agriculteur·rices ; (5) Transition « qualité » des vins occitans.

Through ethnographic engagement with farmers, I seek to describe and understand the relationships between humans and their plants, their connection to space or place, and more broadly, the role of social organizations and institutions in shaping and transforming these relationships. My goals are to understand how (i.e., knowledge, ontologies, and practices) and why (i.e., instrumental, intrinsic, and especially relational values) farmers manage, maintain, and experiment with a diversity of varieties and species. I have particularly studied, using social network analysis, the ways in which plants and associated knowledge circulate. More recently, my aim is to identify the values of biocultural well-being among farmers in Oceania and France (winegrowers), as well as the social, ecological, and political processes that generate a shift to "quality" in vineyard and wine in France (Occitania region).

My work is organized around five themes: (1) Hybrid knowledge and plant classification; (2) Values associated with agrobiodiversity; (3) Circulation of seeds and knowledge; (4) Farmer well-being; (5) Shifting to quality wine production.

 Maître de Conférences, Université de Montpellier

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Mots clés

Organismes : champignons, macromycètes, plantes
Disciplines : Mycologie, Botanique, Chimie des substances naturelles, Activités biologiques
Techniques : extraction, criblage biologique, purification bio-guidée, analyse structurale

 Key words

Organisms: mushrooms, macrofungi, plants
Fields: Mycologia, Botany, Natural Products chemistry, Biological activities
Technics: chemical extraction, biological screening, bio-guided purification, structural analysis

 Professeur des Universités émérite, Université de Montpellier

 Mes recherches portent sur les substances naturelles végétales et fongiques (composés phénoliques ou volatils) d’intérêt industriel présentant des applications en industrie agroalimentaire (arômes, compléments alimentaires) ou pharmaceutique (activités antioxydante, antiinflammatoire, anticancéreux, antimicrobienne), d’intérêt écologique (rhizosphère, écologie chimique) ou ayant un impact sur la santé humaine (toxines fongiques).

My research focuses on plant and mushroom substances (i.e., phenolic compounds or volatiles) of industrial interest presenting applications in  food (flavours, alimentary complements) or pharmaceutical (antioxidants, antiinflammatory, anticancerous, antimicrobial) industries,  of ecological interest (rhizosphere, chemical ecology) or with an impact on human health (fungal toxins, pharmacological properties).

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Directeur de Recherche CNRS

CEFE
Campus du CNRS
1919, route de Mende
34293 Montpellier 5
Tél : +33/0 4 67 61 32 91
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@Th_Lenormand

My principal area of research is Evolutionary genetics and evolutionary ecology. I have a broad expertise in evolutionary biology, genetics and ecology.

I have been working on adaptation and mutation, local adaptation, evolution of genetic systems (sex, recombination, sex chromosomes), evolution of gene duplicates, speciation, genetic conflicts, dispersal, biotic interactions (parasites, microbiota), statistics and fitness measures. I have been working with many empirical systems (vertebrates, insects, crustaceans, fungi, plants, helminths, bacteria), in the lab and in the field.

Currently, my scientific activity rests on three axes: first I do theoretical work (theoretical population genetics, statistics, and bioinformatics development). I am particularly interested currently on the evolution of gene expression (on sex chromosomes or in asexuals). Second, I work on small crustaceans Artemia and Daphnia. I’m particularly interested currently on sex-asex transitions, biotic interactions and adaptation to temperature. Third, I do experimental evolution on E. coli. I'm particularly interested on testing fitness landscape models, adaptation to different doses of antibiotics, and coevolution of species coexisting by frequency dependence.

Research interests by keywords
adaptation, local adaptation, migration, speciation, (sex) chromosomes, clines, sex, parthenogenesis, meiosis, recombination, epistasis, dominance, mutations, resistance, duplications, modifiers, mating systems, sexual conflicts, parasites, microbiota.

Ingénieur d’Etude (EPHE - PSL)

CEFE/CNRS
Campus du CNRS
1919, route de Mende
34293 Montpellier 5

 tél :33 (0)4 67 61 32 54

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Référente données (UMR5175)

Expertise en biologie moléculaire 

• phylogénie,  phylogéographie, dynamique des populations, épidémiologie
• détection ADN rares
• mise au point de marqueurs moléculaires (gènes et locus microsatellites) 
• outils bio-informatiques

 Chargée de Recherche HC - CE - INRAE - HDR

Centre d'Ecologie Fonctionnelle et Evolutive
1919, route de Mende
34293 Montpellier 5


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Personal interests

As an ecophysiologist, my research is focused on the adaptive strategies of plants under drought (Volaire, 2018, Global Change Biology). I have particularly analysed the adaptive strategies to cope with severe water deficit, such as summer dormancy (Volaire & Norton, 2006, Annals of Botany). I also investigate the  dehydration tolerance and embolism resistance of perennial herbaceous plants under severe summer droughts as occurring in Mediterranean and semi-arid areas.  We proposed a critical view of the so called 'functional' traits that are increasingly challenged as unsuitable to fully understand plant and communities functioning (Volaire et al., 2021 Ecology and Evolution). As a consequence, I highlight the importance of seasonal phenological adaptations across species and types to survive dehydration stress (drought, frost), based on the important framework in ecology, the 'growth-stress survival' tradeoff' (Volaire et al., 2022 Annals of Botany). I am developing collaborative research projects with geneticists and ecologists to understand plant traits and strategies associated with drought survival with application to plant breeding in forage species for better adaptation to increasing aridity under climate change.

Intérêts personnels
Mes travaux portent sur les stratégies adaptatives des plantes à la sécheresse. Je travaille notamment sur les espèces herbacées pérennes sous sécheresses estivales sévères de type méditerranéen. Je couple des approches en écophysiologie, agronomie et écologie fonctionnelle. L’objectif principal est d’analyser le fonctionnement des espèces et communautés herbacées sous contrainte hydrique forte dans le cadre du changement climatique. Un cadre conceptuel et terminologique unifié des stratégies adaptatives des plantes à la sécheresse a été proposé en 2018. Les études portent notamment sur la stratégie de dormance estivale et plus largement sur la généricité du compromis fonctionnel entre potentiel de croissance et survie au stress. Une revue multi-espèces et multi-stress a été publiée en 2023 dans Annals of Botany qui propose de considérer mieux la phénologie des plantes au travers d'un 'Plant economics spectrum' saisonnier.