Site languages :

Partenaires

CNRS
UCBL
INRA
ENVL
FR41
IDEX




Search

On this website


Home > Research Teams > Diversité fonctionnelle microbienne et Cycle de l’Azote

Microbial functional diversity and nitrogen cycle

Team Leaders: LE ROUX Xavier & POMMIER Thomas

Team:

Permanent positions

CANTAREL Amelie Professor Assistant, UCB
CZARNES Sonia Professor Assistant, UCB
FLORIO Alessandro Scientist, INRA
LE ROUX Xavier Senior Scientist, INRA
POMMIER Thomas Scientist, INRA
RICHAUME-JOLION Agnès Professor, UCB

Non permanent positions

Yujie SHI Phd CSC, (2014-2016)
Leire MUGICA phD UPNA, Erasmus+
Marine DURAND phD EUL, 2019-2022
Cédric Béraud Master (2019-2020)​

 

Micro-organisms are largely responsible for the flow of matter and energy in the biosphere and are important actors in the functioning and dynamics of ecosystems. We focus our research on 2 bacterial functional groups involved in the nitrogen cycle (nitrifiers, denitrifiers) and to a lesser extent on mineralizers and free nitrogen fixers. These functional groups are responsible for complementary processes that are key steps in the nitrogen cycle. The group of nitrifiers, responsible for the oxidation of ammoniacal and / or nitrous nitrogen) and the group of denitrifiers, responsible for the reduction of the oxidized forms of nitrogen, are functionally connected at the level of nitrite and / or nitrate. Nitrification, denitrification and fixation participate jointly and in connection with mineralization in the control of nitrogen exchanges between the biosphere and the atmosphere and in the equilibrium between the main forms of mineral nitrogen assimilable by plants (ammonium and nitrate). Nitrification and denitrification are involved in the loss of nitrogen from the soil system, in the control of the nitric load of surface or phreatic waters, as well as in the emission of trace pollutant gases (nitrogen oxides).

Our research themes are organized schematically in four main areas :

  • An important aspect of the work of our team is the study of the mechanisms of regulation of the intensity of the functions ensured by model microorganisms or functional groups of model microorganisms, taking into account the different levels of regulation possible, namely the the diversity, diversity and functionality of these organizations. An important issue here is to elucidate the modalities of the expression of genes encoding key enzymes (nitrate reductase, nitrite oxido-reductase ...) in the laboratory and in natural conditions. This makes it possible to specify the determinism of the niche of these organisms and their distribution in space.
  • A second key aspect of our work is to analyze the diversity-function relationships in these microbial groups, and more specifically to evaluate the role of taxonomic and functional diversity, in interactions with environmental conditions, on the achievement of the function provided. by these model microbial groups. The notion of functional complementarity between microorganisms with different niches is particularly used to better understand the diversity-functioning relationships.
  • A third important aspect of our team’s work is to evaluate the effect of plant diversity, and in particular plant functional diversity, on the diversity and functioning of nitrifying and denitrifying groups. This takes into account different types of possible mechanisms, ranging from direct impacts of plants on microbial communities (exudation of specific compounds having a trophic or even signaling role) to indirect impacts on environmental variables influencing microbial groups.
  • Finally, a fourth key aspect of our work is the study of the effects of different factors of global changes (climate change and / or changes in land use patterns) and the ecology of stress (extreme events, pollutants) on the environment. activity, size and diversity of model functional groups, focusing on their role in the functioning of ecosystems.

To achieve these objectives, our team has standard tools and innovative tools to characterize the workforce (quantitative PCR, flow cytometry), diversity (metagenomics and high-throughput sequencing targeting particular genes specific functional groups ... ), the key enzyme pools (serology) and the activity (measurement by gas chromatography, 15N isotope dilution crude nitrogen flux measurement) of the nitrifying, denitrifying and fixing groups as well as the bacterial community as a whole. It should be noted that our team has developed for the first time a tool to characterize the diversity of the Nitrobacter nitrating community in environmental samples by targeting the nxrA gene. In order to characterize the mechanisms regulating denitrification and nitrification, our team uses bacterial genetics methods (transcriptional and translational fusion, mutant construction, measurement of ß-galactosidase activity ...). Our team is also increasingly using analytical methods to characterize the diversity of natural substances in the rhizosphere and soil, as well as the bacterial metabolome. Finally, to address the high-throughput approaches of modern biology, we regularly use robotic methods available in the laboratory.

In addition, members of the team have a key role in major research and training projects of regional, national and international scope :

  • The Institute of Environmental Engineering and Ecodevelopment (IG2E) is directed by A. Richaume-Jolion (http://ig2e.univ-lyon1.fr/).
  • The European network BiodivERsA, supported by the European Commission through its H2020 programme, is coordinated by X. Le Roux (www.biodiversa.org).

 

Publications

 

Scientific papers :

 

2020



  • Cantarel, A.A.M., Allard, V., Andrieu, B., Barot, S., Enjalbert, J., Gervaix, J., Goldringer, I., Pommier, T., Saint-Jean, S., Le Roux, X., 2020. Plant functional trait variability and trait syndromes among wheat varieties: the footprint of artificial selection. Journal of Experimental Botany. https://doi.org/10.1093/jxb/eraa491


  • Cantarel, A.A.M., Rouifed, S., Simon, L., Bourg, J., Gervaix, J., Blazère, L., Poussineau, S., Creuzé des Châtelliers, C., Piola, F., 2020. In Nitrate-Rich Soil, Fallopia x bohemica Modifies Functioning of N Cycle Compared to Native Monocultures. Diversity 12, 156. https://doi.org/10.3390/d12040156


  • Courtois, P., Rorat, A., Lemiere, S., Guyoneaud, R., Attard, E., Longepierre, M., Rigal, F., Levard, C., Chaurand, P., Grosser, A., Grobelak, A., Kacprzak, M., Lors, C., Richaume, A., Vandenbulcke, F., 2020. Medium-term effects of Ag supplied directly or via sewage sludge to an agricultural soil on Eisenia fetida earthworm and soil microbial communities. Chemosphere 128761. https://doi.org/10.1016/j.chemosphere.2020.128761


  • Czarnes, S., Mercier, P.-E., Lemoine, D.G., Hamzaoui, J., Legendre, L., 2020. Impact of soil water content on maize responses to the plant growth-promoting rhizobacterium Azospirillum lipoferum CRT1. Journal of Agronomy and Crop Science n/a. https://doi.org/10.1111/jac.12399


  • de Oliveira, A.B., Cantarel, A.A.M., Seiller, M., Florio, A., Bérard, A., Hinsinger, P., Le Cadre, E., 2020. Short-term plant legacy alters the resistance and resilience of soil microbial communities exposed to heat disturbance in a Mediterranean calcareous soil. Ecological Indicators 108, 105740. https://doi.org/10.1016/j.ecolind.2019.105740


  • Galland, W., Piola, F., Mathieu, C., Bouladra, L., Simon, L., Haichar, F.Z., 2020. Does Biological Denitrification Inhibition (BDI) in the Field Induce an Increase in Plant Growth and Nutrition in Apium graveolens L. Grown for a Long Period? Microorganisms 8, 1204. https://doi.org/10.3390/microorganisms8081204


  • Jurburg, S.D., Assemien, F.L., Beaumelle, L., Salles, J.F., Van Elsas, J.D., Le Roux, X., 2020. A history of extreme disturbance affects the relationship between the abundances of nitrifiers in soil. Biology and Fertility of Soils 56, 1177-1187. https://doi.org/10.1007/s00374-020-01491-8


  • Laffite, A., Florio, A., Andrianarisoa, K.S., Creuze des Chatelliers, C., Schloter‐Hai, B., Ndaw, S.M., Periot, C., Schloter, M., Zeller, B., Poly, F., Le Roux, X., 2020. Biological inhibition of soil nitrification by forest tree species affects <i>Nitrobacter</i> populations. Environmental Microbiology 1462-2920.14905. https://doi.org/10.1111/1462-2920.14905


  • Le, H.T., Rochelle‐Newall, E., Ribolzi, O., Janeau, J.L., Huon, S., Latsachack, K., Pommier, T., 2020. Land use strongly influences soil organic carbon and bacterial community export in runoff in tropical uplands‐. Land Degradation & Development 31, 118-132. https://doi.org/10.1002/ldr.3433


  • Sutherland, W.J., Dias, M.P., Dicks, L.V., Doran, H., Entwistle, A.C., Fleishman, E., Gibbons, D.W., Hails, R., Hughes, A.C., Hughes, J., Kelman, R., Le Roux, X., LeAnstey, B., Lickorish, F.A., Maggs, L., Pearce-Higgins, J.W., Peck, L.S., Pettorelli, N., Pretty, J., Spalding, M.D., Tonneijck, F.H., Wentworth, J., Thornton, A., 2020. A Horizon Scan of Emerging Global Biological Conservation Issues for 2020. Trends in Ecology & Evolution 35, 81-90. https://doi.org/10.1016/j.tree.2019.10.010

2019



  • Achouak, W., Abrouk, D., Guyonnet, J., Barakat, M., Ortet, P., Simon, L., Lerondelle, C., Heulin, T., Haichar, F.Z., 2019. Plant hosts control microbial denitrification activity. FEMS Microbiology Ecology 95. https://doi.org/10.1093/femsec/fiz021


  • Alonso, L., Pommier, T., Kaufmann, B., Dubost, A., Chapulliot, D., Doré, J., Douady, C.J., Moënne‐Loccoz, Y., 2019. Anthropization level of Lascaux Cave microbiome shown by regional-scale comparisons of pristine and anthropized caves. Molecular Ecology 28, 3383-3394. https://doi.org/10.1111/mec.15144


  • Assémien, F.L., Cantarel, A.A.M., Florio, A., Lerondelle, C., Pommier, T., Gonnety, J.T., Le Roux, X., 2019. Different groups of nitrite-reducers and N2O-reducers have distinct ecological niches and functional roles in West African cultivated soils. Soil Biology and Biochemistry 129, 39-47. https://doi.org/10.1016/j.soilbio.2018.11.003


  • Capdeville, C., Pommier, T., Gervaix, J., Fromard, F., Rols, J.-L., Leflaive, J., 2019. Mangrove Facies Drives Resistance and Resilience of Sediment Microbes Exposed to Anthropic Disturbance. Frontiers in Microbiology 9, 3337. https://doi.org/10.3389/fmicb.2018.03337


  • Ciampa, A., Dell'Abate, M.T., Florio, A., Tarricone, L., Di Gennaro, D., Picone, G., Trimigno, A., Capozzi, F., Benedetti, A., 2019. Combined magnetic resonance imaging and high resolution spectroscopy approaches to study the fertilization effects on metabolome, morphology and yeast community of wine grape berries, cultivar Nero di Troia. Food Chemistry 274, 831-839. https://doi.org/10.1016/j.foodchem.2018.09.056


  • Florio, A., Bréfort, C., Gervaix, J., Bérard, A., Le Roux, X., 2019. The responses of NO2−- and N2O-reducing bacteria to maize inoculation by the PGPR Azospirillum lipoferum CRT1 depend on carbon availability and determine soil gross and net N2O production. Soil Biology and Biochemistry 136, 107524. https://doi.org/10.1016/j.soilbio.2019.107524


  • Li, M., Wei, Z., Wang, J., Jousset, A., Friman, V.‐P., Xu, Y., Shen, Q., Pommier, T., 2019. Facilitation promotes invasions in plant‐associated microbial communities. Ecology Letters 22, 149-158. https://doi.org/10.1111/ele.13177


  • Ma, B., Zhou, X., Zhang, Q., Qin, M., Hu, L., Yang, K., Xie, Z., Ma, W., Chen, B., Feng, H., Liu, Y., Du, G., Ma, X., Le Roux, X., 2019. How do soil micro-organisms respond to N, P and NP additions? Application of the ecological framework of (co-)limitation by multiple resources. Journal of Ecology. https://doi.org/10.1111/1365-2745.13179


  • Rozier, C., Gerin, F., Czarnes, S., Legendre, L., 2019. Biopriming of maize germination by the plant growth-promoting rhizobacterium Azospirillum lipoferum CRT1. Journal of Plant Physiology 237, 111-119. https://doi.org/10.1016/j.jplph.2019.04.011


  • Shi, Y., Wang, J., Le Roux, X., Mu, C., Ao, Y., Gao, S., Zhang, J., Knops, J.M.H., 2019. Trade-offs and synergies between seed yield, forage yield, and N-related disservices for a semi-arid perennial grassland under different nitrogen fertilization strategies. Biology and Fertility of Soils 55, 497-509. https://doi.org/10.1007/s00374-019-01367-6


  • Sutherland, W.J., Broad, S., Butchart, S.H.M., Clarke, S.J., Collins, A.M., Dicks, L.V., Doran, H., Esmail, N., Fleishman, E., Frost, N., Gaston, K.J., Gibbons, D.W., Hughes, A.C., Jiang, Z., Kelman, R., LeAnstey, B., le Roux, X., Lickorish, F.A., Monk, K.A., Mortimer, D., Pearce-Higgins, J.W., Peck, L.S., Pettorelli, N., Pretty, J., Seymour, C.L., Spalding, M.D., Wentworth, J., Ockendon, N., 2019. A Horizon Scan of Emerging Issues for Global Conservation in 2019. Trends in Ecology & Evolution 34, 83-94. https://doi.org/10.1016/j.tree.2018.11.001


  • Yang, S., Zheng, Q., Yang, Y., Yuan, M., Ma, X., Chiariello, N.R., Docherty, K.M., Field, C.B., Gutknecht, J.L.M., Hungate, B.A., Niboyet, A., Le Roux, X., Zhou, J., 2019. Fire affects the taxonomic and functional composition of soil microbial communities, with cascading effects on grassland ecosystem functioning. Global Change Biology gcb.14852. https://doi.org/10.1111/gcb.14852


  • Yang, S., Zheng, Q., Yuan, M., Shi, Z., Chiariello, N.R., Docherty, K.M., Dong, S., Field, C.B., Gu, Y., Gutknecht, J., Hungate, B.A., Le Roux, X., Ma, X., Niboyet, A., Yuan, T., Zhou, J., Yang, Y., 2019. Long-term elevated CO2 shifts composition of soil microbial communities in a Californian annual grassland, reducing growth and N utilization potentials. Science of The Total Environment 652, 1474-1481. https://doi.org/10.1016/j.scitotenv.2018.10.353

2018



  • Alonso, L., Creuzé des Châtelliers, C., Trabac, T., Dubost, A., Moënne-Loccoz, Y., Pommier, T., 2018. Rock substrate rather than black stain alterations drives microbial community structure in the passage of Lascaux Cave. Microbiome 6, 216. https://doi.org/10.1186/s40168-018-0599-9


  • Bardon, C., Misery, B., Piola, F., Poly, F., Le Roux, X., 2018. Control of soil N cycle processes by <i>Pteridium aquilinum</i> and <i>Erica cinerea</i> in heathlands along a pH gradient. Ecosphere 9, e02426. https://doi.org/10.1002/ecs2.2426


  • Bounaffaa, M., Florio, A., Le Roux, X., Jayet, P.-A., 2018. Economic and Environmental Analysis of Maize Inoculation by Plant Growth Promoting Rhizobacteria in the French Rhône-Alpes Region. Ecological Economics 146, 334-346. https://doi.org/10.1016/j.ecolecon.2017.11.009


  • Crème, A., Rumpel, C., Le Roux, X., Romian, A., Lan, T., Chabbi, A., 2018. Ley grassland under temperate climate had a legacy effect on soil organic matter quantity, biogeochemical signature and microbial activities. Soil Biology and Biochemistry 122, 203-210. https://doi.org/10.1016/j.soilbio.2018.04.018

  • Doussan, C., Bérard, A., Czarnes, S., Legendre, L., Legouis, J., Ruy, S., Guix, N., 2018. Do Plant Roots Modify The Soil Water Retention Properties of Rhizospheric Soil ? Evidences from the field and controlled conditions. AGU Fall Meeting Abstracts 23.


  • Guyonnet, J.P., Cantarel, A.A.M., Simon, L., Haichar, F.Z., 2018. Root exudation rate as functional trait involved in plant nutrient-use strategy classification. Ecology and Evolution 8, 8573-8581. https://doi.org/10.1002/ece3.4383


  • Guyonnet, J.P., Guillemet, M., Dubost, A., Simon, L., Ortet, P., Barakat, M., Heulin, T., Achouak, W., Haichar, F.Z., 2018. Plant Nutrient Resource Use Strategies Shape Active Rhizosphere Microbiota Through Root Exudation. Frontiers in Plant Science 9. https://doi.org/10.3389/fpls.2018.01662


  • Le, H.T., Rochelle-Newall, E., Auda, Y., Ribolzi, O., Sengtaheuanghoung, O., Thébault, E., Soulileuth, B., Pommier, T., 2018. Vicinal land use change strongly drives stream bacterial community in a tropical montane catchment. FEMS Microbiology Ecology 94. https://doi.org/10.1093/femsec/fiy155


  • Leloup, J., Baude, M., Nunan, N., Meriguet, J., Dajoz, I., Le Roux, X., Raynaud, X., 2018. Unravelling the effects of plant species diversity and aboveground litter input on soil bacterial communities. Geoderma 317, 1-7. https://doi.org/10.1016/j.geoderma.2017.12.018


  • Mallon, C.A., Roux, X., Doorn, G.S., Dini-Andreote, F., Poly, F., Salles, J.F., 2018. The impact of failure: unsuccessful bacterial invasions steer the soil microbial community away from the invader’s niche. The ISME Journal 1. https://doi.org/10.1038/s41396-017-0003-y


  • Pommier, T., Cantarel, A.A.M., Grigulis, K., Lavorel, S., Legay, N., Baxendale, C., Bardgett, R.D., Bahn, M., Poly, F., Clément, J.-C., 2018. The added value of including key microbial traits to determine nitrogen-related ecosystem services in managed grasslands. Journal of Applied Ecology 55, 49-58. https://doi.org/10.1111/1365-2664.13010


  • Simonin, M., Cantarel, A.A.M., Crouzet, A., Gervaix, J., Martins, J.M.F., Richaume, A., 2018. Negative Effects of Copper Oxide Nanoparticles on Carbon and Nitrogen Cycle Microbial Activities in Contrasting Agricultural Soils and in Presence of Plants. Frontiers in Microbiology 9. https://doi.org/10.3389/fmicb.2018.03102


  • Srikanthasamy, T., Leloup, J., N'Dri, A.B., Barot, S., Gervaix, J., Koné, A.W., Koffi, K.F., Le Roux, X., Raynaud, X., Lata, J.-C., 2018. Contrasting effects of grasses and trees on microbial N-cycling in an African humid savanna. Soil Biology and Biochemistry 117, 153-163. https://doi.org/10.1016/j.soilbio.2017.11.016


  • Sutherland, W.J., Butchart, S.H.M., Connor, B., Culshaw, C., Dicks, L.V., Dinsdale, J., Doran, H., Entwistle, A.C., Fleishman, E., Gibbons, D.W., Jiang, Z., Keim, B., Roux, X.L., Lickorish, F.A., Markillie, P., Monk, K.A., Mortimer, D., Pearce-Higgins, J.W., Peck, L.S., Pretty, J., Seymour, C.L., Spalding, M.D., Tonneijck, F.H., Gleave, R.A., 2018. A 2018 Horizon Scan of Emerging Issues for Global Conservation and Biological Diversity. Trends in Ecology & Evolution 33, 47-58. https://doi.org/10.1016/j.tree.2017.11.006

2017



  • Assémien, F.L., Pommier, T., Gonnety, J.T., Gervaix, J., Le Roux, X., 2017. Adaptation of soil nitrifiers to very low nitrogen level jeopardizes the efficiency of chemical fertilization in west african moist savannas. Scientific Reports 7. https://doi.org/10.1038/s41598-017-10185-5


  • Bardon, C., Poly, F., Haichar, F.Z., Le Roux, X., Simon, L., Meiffren, G., Comte, G., Rouifed, S., Piola, F., 2017. Biological denitrification inhibition (BDI) with procyanidins induces modification of root traits, growth and N status in Fallopia x bohemica. Soil Biology and Biochemistry 107, 41-49. https://doi.org/10.1016/j.soilbio.2016.12.009


  • Barot, S., Allard, V., Cantarel, A.A.M., Enjalbert, J., Gauffreteau, A., Goldringer, I., Lata, J.-C., Le Roux, X., Niboyet, A., Porcher, E., 2017. Designing mixtures of varieties for multifunctional agriculture with the help of ecology. A review. Agronomy for Sustainable Development 37, 13. https://doi.org/10.1007/s13593-017-0418-x


  • Blondel, C., Briset, L., Legay, N., Arnoldi, C., Poly, F., Clément, J.-C., Raveton, M., 2017. Assessing the dynamic changes of rhizosphere functionality of Zea mays plants grown in organochlorine contaminated soils. Journal of Hazardous Materials 331, 226-234. https://doi.org/10.1016/j.jhazmat.2017.02.056
  • Cantarel, A.A.M., 2017. Does plant type matter in the microbial ecotoxicity of metal nanoparticles in soil?
  • Capdevila, C., 2017. Responses of microbial communities in mangrove ecosystem under the influence of pretreated wastewater discharges.


  • El Moujahid, L., Le Roux, X., Michalet, S., Bellvert, F., Weigelt, A., Poly, F., 2017. Effect of plant diversity on the diversity of soil organic compounds. PLOS ONE 12, e0170494. https://doi.org/10.1371/journal.pone.0170494


  • Florio, A., Pommier, T., Gervaix, J., Bérard, A., Le Roux, X., 2017. Soil C and N statuses determine the effect of maize inoculation by plant growth-promoting rhizobacteria on nitrifying and denitrifying communities. Scientific Reports 7. https://doi.org/10.1038/s41598-017-08589-4
  • Florio, A., 2017. Carbon and nitrogen limitation explain the contrasting responses of rhizospheric N-cycling microbial communities to maize inoculation by Azospirillum lipoferum CRT1.


  • Guyonnet, J.P., Vautrin, F., Meiffren, G., Labois, C., Cantarel, A.A.M., Michalet, S., Comte, G., Haichar, F.Z., 2017. The effects of plant nutritional strategy on soil microbial denitrification activity through rhizosphere primary metabolites. FEMS Microbiology Ecology 93. https://doi.org/10.1093/femsec/fix022


  • Jurburg, S.D., Nunes, I., Stegen, J.C., Le Roux, X., Priemé, A., Sørensen, S.J., Salles, J.F., 2017. Autogenic succession and deterministic recovery following disturbance in soil bacterial communities. Scientific Reports 7. https://doi.org/10.1038/srep45691


  • Legay, N., Piton, G., Arnoldi, C., Bernard, L., Binet, M.-N., Mouhamadou, B., Pommier, T., Lavorel, S., Foulquier, A., Clément, J.-C., 2017. Soil legacy effects of climatic stress, management and plant functional composition on microbial communities influence the response of Lolium perenne to a new drought event. Plant and Soil 1-22. https://doi.org/10.1007/s11104-017-3403-x
  • Longepierre, M., 2017. Des communautés bactériennes du sol très résistantes aux Nanoparticules d’Argent apportées via des boues de STEP contaminées.

0 | 50

 

Books (since 2006)

 

Abbadie L., Gignoux J., Le Roux X. & Lepage M. (Eds) 2006. Lamto : structure, functioning, and dynamics of a savanna ecosystem. Springer Verlag, Ecological Studies, 179, New York, 415 pp., (ISBN: 0-387-94844-9).

Le Roux X., Barbault R., Baudry J., Burel F., Doussan I., Garnier E., Herzog F., Lavorel S., Lifran R., Roger-Estrade J., Sarthou J.P. & Trometter M. (Eds) 2008. Agriculture et biodiversité : valoriser les synergies. Quae 184 pp.


Book chapters (since 2006)

 

Abbadie L., Gignoux J., Lepage M. & Le Roux X. 2006. Chapter 4 : Environnemental constraints on living organisms. In: "Lamto : structure, functioning, and dynamics of a savanna ecosystem." (Abbadie L., Gignoux J., Le Roux X. & Lepage M. Eds), Springer Verlag, Ecological Studies, 179, New York, 45-61.

Gignoux J., Le Roux X. & Abbadie L. 2006. Chapter 21 : Perspectives: from the Lamto experience to critical issues for savanna ecology research. In: "Lamto : structure, functioning, and dynamics of a savanna ecosystem." (Abbadie L., Gignoux J., Le Roux X. & Lepage M. Eds), Springer Verlag, Ecological Studies, 179, New York, 392-407.

Le Roux X. 2006. Chapter 3 : Climate. In: "Lamto : structure, functioning, and dynamics of a savanna ecosystem." (Abbadie L., Gignoux J., Le Roux X. & Lepage M. Eds), Springer Verlag, Ecological Studies, 179, New York, 25-44.

Le Roux X. & Monteny B. 2006. Chapter 6 : Soil-plant-atmosphere exchanges. In: "Lamto : structure, functioning, and dynamics of a savanna ecosystem." (Abbadie L., Gignoux J., Le Roux X. & Lepage M. Eds), Springer Verlag, Ecological Studies, 179, New York, 77-113.

Le Roux X., Gignoux J. & Simioni G. 2006. Chapter 9 : Modelling the relationships between vegetation structure and functioning, and modeling savanna functioning from plot to region. In: "Lamto : structure, functioning, and dynamics of a savanna ecosystem." (Abbadie L., Gignoux J., Le Roux X. & Lepage M. Eds), Springer Verlag, Ecological Studies, 179, New York, 163-183.

Le Roux X., Abbadie L., Fritz H. & Leriche H. 2006. Chapter 10 : Modification of the savanna functioning by herbivores. In: "Lamto : structure, functioning, and dynamics of a savanna ecosystem." (Abbadie L., Gignoux J., Le Roux X. & Lepage M. Eds), Springer Verlag, Ecological Studies, 179, New York, 185-198.

Le Roux X., Abbadie L. & Gignoux J. 2006. Chapter 20 : A synthetic overview of Lamto savanna ecology : importance of structure-functioning-dynamics relationships. In: "Lamto : structure, functioning, and dynamics of a savanna ecosystem." (Abbadie L., Gignoux J., Le Roux X. & Lepage M. Eds), Springer Verlag, Ecological Studies, 179, New York, 382-392.

Mordelet P. & Le Roux X. 2006. Chapter 8 : Tree/grass interactions. In: "Lamto : structure, functioning, and dynamics of a savanna ecosystem." (Abbadie L., Gignoux J., Le Roux X. & Lepage M. Eds), Springer Verlag, Ecological Studies, 179, New York, 139-161.

Le Roux X. 2009. Agriculture et biodiversité : quels grands enjeux pour demain ? in: Humanité et biodiversité: manifeste pour une nouvelle alliance. Descartes & Cie. 177-182.

Le Roux X. 2010. Le sol: un gigantesque réservoir de biodiversité. In: Aux origines de l’environnement. (Gouyon P.H. & Leriche H. Eds), Fayard, Paris, 130-143.

Bertrand J.C., Bonin P., Caumette P., Gattuso J.P., Grégori G., Guyoneaud R., Le Roux X., Matteron R. & Poly F. 2011. Les cycles biogéochimiques. In: "Ecologie microbienne: Microbiologie des milieux naturels et anthropisés." (Bertrand J.C., Caumette, Lebaron P., Matheron R. & Normand P. Eds), PUP, Pau, 545-657.

Le Roux X., Recous S. & Attard E. 2011. Soil microbial diversity in grasslands, and its importance for grassland functioning and services.in: Lemaire G. & Chabbi A. (Eds). Grassland Productivity and Ecosystem Services. CABI International, 158-165.

Normand P, Duran R, Le Roux X. Morris CE. & Poggiale J.C. 2011. Biodiversité et fonctionnement des écosystèmes microbiens. In: "Ecologie microbienne: Microbiologie des milieux naturels et anthropisés." (Bertrand J.C., Caumette P., Lebaron P., Matheron R., & Normand P. Eds), PUP, Pau pp. 263-296.

Larigauderie A., Le Roux X., Gauthier C.A., Leadley P.W. 2012. Vers une gouvernance internationale liant science et société. In: Prevost-Juillard A. Ed, Fayard (in press)

 

National or international reports and popular articles:

 

National and international report since (2006) :

 

Silvain J.F., Le Roux X., Babin D., Barbault R., Bertin P., Bodo B., Boude J.P., Boudry P., Bourgoin T., Boyen C., Cormier-Salem M.C., Courchamp F., Couvet D., David B., Delay B., Doussan I., Jaskulke E., Lavorel S., Leadley P., Lefèvre F., Leriche H., Letourneux F., Los W., Mesleard F., Morand S., Schmidt-Lainé C., Siclet F. & Verrier E. 2009. Prospective pour la recherche française sur la biodiversité, FRB, 96 pp.

Chaveriat C., Ghitalla F., Pelegrin F., Fadil F. & Le Roux X. 2011. La base de données nationale des acteurs, structures et projets de recherche sur la biodiversité : présentation et analyse du paysage de la recherche. In: Expertise et synthèse FRB, 36 pp.

Mattei S., Henkel L., Gauthier C.A. & Le Roux X. 2011. Biodiversity within the ’Environment’ theme of the 7th framework programme (2007-2010): funding amounts, success rates, temporal trends & comparison between countries. In: Expertise and synthesis, FRB, 32 pp.

 

Popular articles (since 2006) :

 

Lemanceau P., Le Roux X. & Martin F. 2006. L’écologie microbienne des sols : un domaine scientifique en plein développement pour une meilleure gestion de notre environnement. Biofutur 268: 22-23.

Le Roux X., Philippot L., Degrange V., Poly F. & Wertz S. 2006. Relations entre biodiversité et fonctionnement chez les communautés microbiennes. Biofutur 268: 50-53.

Le Roux X. 2009. Les liens entre agriculture et biodiversité auscultés par la communauté scientifique. Revue des oenologues, 132: 1-2.

Le Roux X. 2009. Agriculture et biodiversité. Revue du club parlementaire sur l’avenir de la recherche agronomique. AGORA, avril 2009: 1-4.

Le Roux X. 2010. Agriculture en quête de nature. Campagnes et Environnement 11: 16-18.

Le Roux X. & Gauthier C.A. 2011. Gouvernance mondiale de la biodiversité: naissance de l’IPBES. In: Entreprises, relevez le défi de la biodiversité (Pays L. & Frémaux P. Ed) Victoires éditions, 132-135.

 

Movies and other medias (since 2006) :

 

Movies :

2008: Film INRA “agriculture-biodiversité” (participation de X Le Roux)

2010: Film “La biodiversité, c’est aussi près de chez vous” - C. Production Chromatiques / CAP CANAL (participation de X Le Roux) :

http://www.capcanal.tv/video.php?rubrique=5&emission=4&key=kuxy8TGdEV

2009: Film de la présentation des résultats de l’expertise scientifique collective “Agriculture & biodiversité” par X. Le Roux devant le Pôle “Activités rurales, agricultures et territoires en Rhône-Alpes’ :

http://www.psdr-ra.fr/spip.php?rubrique44

2012: Film “Dessine-moi un paysage bio”, Ministère de l’Agriculture & Bergerie nationale (participation de X Le Roux) : http://www.dailymotion.com/video/xo2vne_dessine-moi-un-paysage-bio-version-courte_webcam?ralg=behavior-meta2#from=playrelon-2

 

Others:

Le Roux X. 2008. Interview sur le thème ‘Agriculture et biodiversité’ par la radio RFI

Le Roux X. 2008. Interview sur le thème ‘Agriculture et biodiversité’ dans le journal Le Monde.

Le Roux X. 2010. Interview sur la biodiversité dans le journal Libération.