Since 2008:       Vice Scientific director of the GenoSol Plateform, INRA/AgroSup Dijon/University of Burgundy UMR 1347, Dijon

Since 2005:     Researcher at the Laboratoiry of Agroecology INRA/AgroSup Dijon/University of Burgundy UMR 1347, Dijon

2003-2005:      Postdoctoral researcher. Laboratoire de Microbiologie du Sol et de l'Environnement INRA/CMSE UMR 1229, Dijon

2000-2003:      PhD student. Laboratoire d’Ecologie Microbienne, UMR-CNRS 5557, Université Claude Bernard Lyon 1

Numerous human activities essential to the well-being of modern society have adverse effects on environmental quality. These activities (industrialization, urbanization, intensive agriculture,…) have a severe impact on soil biodiversity and the functional significance of these losses/modifications of biodiversity, in terms of the capacity of ecosystems to maintain the functions and services on which humanity depends, is now of pivotal importance. It is in this general context that the researches I conduct at the Laboratory of Agroecology are inscribed since I was recruited in 2005. My general objective is to better understand the role of the diversity of soil microbial communities in the biogeochemical carbon cycle. The choice of this particular cycle was justified by its major implication in ecosystem functions and services on which humanity depends such as soil fertility, environment quality and global changes. My research is structured around three main questions:

- What is the dynamics of microbial diversity (genetic and functional) during the decomposition of organic matter in soil? What are the evolution and stability (resilience) of the soil microbial component after addition of organic matter into the soil?

- What are the interactions between edaphic (agricultural practices, type of soil), biochemical (nature of organic matter) and microbiological factors (composition, density and diversity of microbial communities) during the decomposition of organic matter in soil? Is it possible to exploit these interactions to orientate the fate of organic matter in soil?

- What is the link between the diversity of the soil microbial communities and the turnover of organic matters in soil?

-    Projet ANR-SYSTERRA « Lien entre la diversité microbienne et le turn-over des matières organiques dans les sols agricoles (DIMIMOS) » (2009-2013),

-    Projet innovant INRA (département EA) (2007-2009),

-    Projet « Bioindicateur fonctionnel de la qualité des sols » ADEME 2005-2007

…Also strongly involved in SOFIA (ANR Agrobiosphère 2012-21016), MOSAIC (ANR Agrobiosphère 2013-21017), and in the European project EcoFinders.

●     Mougin C, Azam D, Caquet T, Cheviron N, Dequiedt S, Le Galliard JF, Guillaume O, Houot S, Lacroix G, Maron PA, Pichot C, Ranjard L, Roy J, Zeller B, Clobert J, Chanzy A. 2015. French ecosystem research platforms (AnaEE-France) open to international research in ecotoxicology. Environnemental Science and Pollution Research, in press  

●     Tardy V, Chabbi A, Charrier X, de Berranger C, Reignier T, Dequiedt S, Faivre-Primot C, Terrat S, Ranjard L, Maron PA. 2015. Land use history shifts in situ fungal and bacterial successions following wheat straw input into the soil. PLOS One in press

●     Terrat S, Dequiedt S, Horrigue W, Lelievre M, Cruaud C, Saby N, Jolivet C, Arrouays D, Maron PA, Ranjard L, Chemidlin Prévost Bouré N. 2015. Improving soil bacterial taxa-area  relationships assessment using DNA meta-barcoding. Heredity, special issue ‘Environmental genomics’ 114 : 468-475

●     Kaisermann A, Maron PA, Beaumelle L, Lata JC. 2015. Fungal communities are more sensitive indicators to non-extreme soil moisture variations than bacterial communities. Applied Soil Ecology 86 : 158-164

●     Lemanceau P, Maron PA, Mazurier S, Mougel C, Pivato B, Plassart P, Ranjard L, Revellin C, Tardy V, Wipf D. 2015. Understanding and managing soil biodiversity: a major challenge in agroecology. Agron. Sustain. Dev. 35:67–81

●     Milne E, Banwart SA, Noellemeyer E, Abson D, Ballbio C, et al. 2015. Soil carbon, multiple benefits. Environmental Development 13: 33-38.

●     Terrat S, Plassart P, Bourgeois E, Ferreira S, Dequiedt S, Adele-Dit-De-Renseville N, Lemanceau P, Bispo A, Chabbi A, Maron PA, Ranjard L. 2015. Meta-barcoded evaluation of the ISO standard 11063 DNA extraction procedure to characterize soil bacterial and fungal community diversity and composition. Microbial Biotechnology 8:131-142 (Biotechnology & Applied Microbiology, notoriété correcte)

●     Guigue J, Mathieu O, Lévêque J, Mounier S, Laffont R, Maron PA, Navarro N, Château C,  Amiotte-Suchet P, Lucasa Y. 2014. A comparison of extraction procedures for water-extractable organic matter in soils. European Journal of Soil Science. 65 : 520-530 (Soil Science, notoriété excellente)

●     Tardy V, Mathieu O, Leveque J, Terrat S, Chabbi A, Lemanceau P, Ranjard L, Maron PA. 2013. Stability of soil microbial structure and activity depends on microbial diversity. Environmental Microbiology Reports 6 :173-183 (Environmental Sciences, notoriété excellente)

●     Constancias F, Chemidlin Prévost-Bouré N, S Terrat S, Aussems S, Nowak V, Guillemin JP, Bonnotte A, Biju-Duval L, Navel A, Martins J, Maron PA, Ranjard L. 2014. Microscale evidence for a high decrease of soil bacterial density and diversity by cropping. Agronomy for Sustainable Development 34 : 831-840 (Agronomy, notoriété excellente)

●     Vivant AL, Garmyn D, Maron PA, Nowak V, Piveteau P. 2013. Microbial diversity and structure are drivers of the biological barrier effect against Listeria monocytogenes in soil. Plos one 8 : UNSP e76991 (Multidisciplinary Sciences, notoriété exceptionnelle)

●     Kaisermann A, Roguet A, Nunan N, Maron PA, Ostle N, Lata JC. 2013. Agricultural management affects the response of soil bacterial community structure and respiration to water-stress. Soil Biology & Biochemistry 66: 69-77 (soil science, notoriété excellente)

●     Lienhard P, Terrat S, Chemidlin Prévost-Bouré N, Nowak V, Régnier T, Sayphoummie S, Panyasiri K, Tivet F, Mathieu O, Levêque J, Maron PA, Ranjard L. 2013. Pyrosequencing evidences the impact of cropping on soil bacterial and fungal diversity in Laos tropical grassland. Agronomy for Sustainable Development 34: 525-533 (Agronomy, notoriété excellente)

●     Lienhard P, Terrat S, Mathieu O, Levêque J, Chemidlin Prévost-Bouré N, Nowak V, Régnier T, Faivre C, Sayphoummie S, Panyasiri K, Tivet F, Ranjard L_, Maron PA. 2013. Soil microbial diversity and C turnover modified by tillage and cropping in Laos tropical grassland. Environmental Chemistry Letters 11:391-398. DOI 10.1007/s10311-013-0420-8 (engineering, Environmental, notoriété correcte)

●     Jouquet P, Maron PA, Nowak V, Duc TT. 2013. Utilization of microbial abundance and diversity as indicators of the origin of soil aggregates produced by earthworms. Soil Biology & Biochemistry 57: 950-952.

●     Baumann K, Dignac MF, Rumpel C, Bardoux G, Sarr A, Steffens M, Maron PA. 2013. Soil microbial diversity affects soil organic matter decomposition in a silty grassland soil Biogeochemistry. In press DOI 10.1007/s10533-012-9800-6

●     Philippot L, Spor A, Hénault C, Bru D, Bizouard F, Jones CM, Sarr A, Maron PA. 2013. Loss in microbial diversity affects nitrogen cycling in soil. The ISME Journal. In press.

●     Pascault N, Ranjard L, Kaisermann A, Bachar D, Christen R, Terrat S, Mathieu O, Lévêque J, Mougel C, Henault C, Lemanceau P, Péan M, Boiry S, Fontaine S, Maron PA. 2013. Stimulation of different functional groups of bacteria by various plant residues as a driver of soil priming effect. Ecosystems. In press. DOI: 10.1007/s10021-013-9650-7

●     Lienhard P, Tivet F, Chabanne A, Dequiedt S, Lelièvre M, Sayphoummie S, Leudphanane B, Chemidlin Prévost-Bouré N, Séguy L, Maron PA, Ranjard L. 2013. No-till and cover crops shift soil microbial abundance and diversity in a Laos tropical grasslands. Agronomy for Sustainable Development, in press.

●     Ranjard L, Dequiedt S, Chemidlin Prévost-Bouré N, Thioulouse J, Saby NPA, Lelievre M, Maron PA, Morin FER, Bispo A, Jolivet C, Arrouays D, Lemanceau P. 2013. Turnover of soil bacterial diversity driven by wide-scale environmental heterogeneity. Nature Communications.4 :134. DOI : 10.1038/ncomms2431.

●     Pascault N, Ranjard L, Kaisermann A, Bachar D, Christen R, Mathieu O, Lévêque J, Mougel C, Henault C, Lemanceau P, Péan M, Fontaine S, Maron, PA. 2013. Stimulation of different functional groups of soil bacteria resulting from inputs of various plant residues as a driver of priming effect process. Ecosystems in press

●     Terrat S, Christen R, Dequiedt S, Lelievre M, Nowak V, Bachar D, Plassart P, Wincker P, Jolivet C, Bispo A, Lemanceau P, Maron PA, Mougel C, Ranjard L . 2012. Molecular biomass and MetaTaxogenomic assessment of soil microbial communities as influenced by soil DNA extraction procedure, Microbial Biotechnology 5:135-141.

●     Le Guillou C, Angers DA, Maron, PA, Leterme, P, Menasseri-Aubry, S. 2012. Linking microbial community to soil water-stable aggregation during crop residue decomposition Soil Biology and Biochemistry. 50: 126-133.

●     Plassart P, Terrat S, Griffiths R, Thomson B, Dequiedt S, Lelievre M, Regnier T, Nowak V, Bailey M, Lemanceau P, Bispo A, Chabbi A, Maron PA, Mougel C, Ranjard L. 2012. Evaluation of the ISO Standard 11063 DNA Extraction Procedure for Assessing Soil Microbial Abundance and Community Structure. Plos one, 7:e44279.

●     Maron, PA, Mougel C, Ranjard L. 2011. Soil microbial diversity: spatial overview, driving factors and functional interest. CRAS Biology II. 334:403-411.

●     Chemidlin-Prévost Bouré N, Maron PA, Ranjard L, Nowak V, Dufrene E, Damesin C, Soudani K, Lata J-C. 2011. Seasonal dynamics of bacterial community in forest soil under different leaf litter amount. Applied Soil Ecology, 47:14-23.

●     Ranjard L, Dequiedt S, Jolivet C, Saby NPA, Thioulouse J, Harmand J, Loisel P, Rapaport A, Fall S, Simonet P, Joffre R, Chemidlin-Prévost-Bouré N, Maron PA, Mougel C, Martin MP, Toutain B, Arrouays D, Lemanceau P. 2010. Biogeography of soil microbial communities : a review and a description of the ongoing French national initiative. Agronomy. Agron. Sustain. Dev. 30-359-365.

●     Chèneby D, Bru D, Pascault N, Maron PA, Ranjard L, Philippot L. 2010. Role of plant residues in determining temporal patterns of the activity, size and structure of nitrate reducer communities in soil. Applied and Environmental Microbiology. 76, 7136-7143.

●     PascaultN, CécillonL, MathieuO, HénaultC, SarrA, LévêqueJ, FarcyP, RanjardL, MaronPA. 2010. In situ dynamics of microbial communities during decomposition of wheat, rape and alfalfa residues. Microbial Ecology.  60: 816-828.

●     Pascault N, Nicolardot B, Bastian  F, Thiébeau P, Ranjard L, Maron PA. 2010. In situ dynamics and spatial heterogeneity of soil bacterial communities under different crop residue management. Microbial Ecology. 60, 291-303.

●     Hidri Y, Bouziri L, Maron PA, Anane M, Djedidi N, Nassen A, Ranjard L. 2009. Soil DNA evidence for altered microbial diversity after long-term application of municipal wastewater. Agronomy. Agron. Sustain. Dev. 30: 423-431.

●     Bernard L, Maron PA, Mougel C, Nowak V, Leveque J, Marol C, Balesdent J, Gibiat F, Ranjard L. 2009. Contamination of soil by copper affects the dynamics, diversity, and activity of soil bacterial communities involved in wheat decomposition and carbon storage. Applied and Environmental Microbiology 75: 7565-7569.

●     Dequiedt S, Thioulouse J, Jolivet C, Saby NPA, Lelievre M, Maron PA, Martin MP, Chemidlin-Prévost-Bouré N, Toutain B, Arrouays D, Lemanceau P, Ranjard L. 2009. Biogeographical patterns of soil bacterial communities. Environ Microbiol Report, 1 : 251-255.

●     Dequiedt S, Lelièvre M, Jolivet C, Saby NPA, Martin M, Thioulouse J, Maron PA, Mougel C, Chemidlin Prévost-Bouré N, Arrouays D, Lemanceau P, Ranjard L. 2009. ECOMIC-RMQS : biogéographie microbienne à l’échelle de la France - Etat d’avancement et premiers résultats. Etude et Gestion des Sols. 16: 219-233

●     Ranjard L, Dequiedt, S, Lelièvre M, Maron PA, Mougel C, Morin F, Lemanceau, P. 2009. Platform GenoSol : a new tool for conserving and exploring soil microbial diversity. Environmental Microbiology Reports 1: 97-99.

●     Maron PA, Maitre M, Mercier A, Lejon DPH., Nowak V, Ranjard L. 2008. Protein and DNA fingerprinting of a soil bacterial community inoculated in three different sterile soils Research in Microbiology 159, 231-236

●     Bressan M, Mougel C, Dequiedt S, Maron PA, Lemanceau P, Ranjard L. 2008. Response of Soil Bacterial Communities to Repeated Stresses of Different Levels. Environmental Microbiology 10, 2184-2187.

●     Bernard L, Mougel C, Maron P-A, Nowak V, Henault C, Lévêque J, Haichar F, Berge O, Marol C, Balesdent J, Gibiat F, Lemanceau P, Ranjard L. 2007. Dynamics and identification of microbial populations involved in the decomposition of ¹³C labelled wheat residue as estimated by DNA- and RNA-SIP techniques, Environmental Microbiology 9, 752-764.

●     Maron P-A, Mougel C, Siblot S, Abbas H, Lemanceau P, Ranjard L. 2007. Protein extraction and fingerprinting optimisation of bacterial communities in natural environment. Microbial Ecology, 53, 426-434.

●     Maron P-A, Mougel C, Lejon D, Carvalho E, Bizet K, Marck G, Cubito N, Lemanceau P, Ranjard L. 2006. Temporal variability of airborne bacterial community structure in an urban area. Atmospheric environment 40, 8074-8080.

●     Maron P-A, Schimann H, Brothier E, Ranjard L, Domenach A-M, Lensi R, Nazaret S. 2006. Evaluation of quantitative and qualitative recovery of bacterial communities from different soil types by density gradient centrifugation. European Journal of Soil Biology 42, 65-73.

●     Maron P-A., Mougel C, Lejon DPH, Carvalho E, Bizet K, Marck G, Cubito N, Lemanceau P, Ranjard L. 2006. Temporal variability of airborne bacterial community structure in an urban area. Atmospheric Environment 40, 8074-8080.

●     Maron P-A, Lejon D, Carvalho E, Bizet K, Lemanceau P, Ranjard L, Mougel C. 2005. Assessing genetic structure and diversity of airborne bacterial communities by DNA fingerprinting and 16S rDNA clone library. Atmospheric Environment 39, 3687-3695.

●     Maron P-A, Richaume A, Potier P, Lata J-C, Lensi R. 2004. Immunological method for direct assessment of the functionality of a denitrifying strain of Pseudomonas fluorescens in soil. Journal of Microbiological Methods 58, 13-21.

●     Lata J-C, Degrange V, Raynaud X, Maron P-A, Lensi R, Abbadie L. 2004. Grass populations control nitrification processes in savanna soils. Functional Ecology 18, 605-611.

●     Maron P-A, Coeur C, Pink C, Clays-Josserand A, Lensi R, Richaume A, Potier P. 2003. Use of polyclonal antibodies to detect and quantify the NOR protein of nitrite oxidizers in complex environments.Journal of Microbiological Methods 53, 87-95.