ECOLAB > Pages profils > LEFLAIVE Joséphine

Profil de Joséphine LEFLAIVE

LEFLAIVE Joséphine

Email :

Téléphone / phone: 05 61 55 85 49

Bureau / office : 331

Institution : UPS

Statut / status: Enseignant chercheur

Adresse professionnelle / address:

Université Paul Sabatier de Toulouse
118 route de Narbonne
bâtiment 4R1
31062 Toulouse Cedex

Site perso / personal website :


Habilitation à Diriger des Recherches, University of Toulouse, 2018

Ph.D in functional ecology, University of Toulouse, 2005

M.Sc. in ecology of continental systems, University of Toulouse, 2004

Student at the Ecole Normale Supérieure de Paris, 2001-2005

Professional experience

2008-present: Assistant Professor, University of Toulouse, France

I began my research activity by working on the chemical interactions between phototrophic microorganisms within biofilms. This theme was further expanded to the responses of microbial communities (mainly biofilms, but also planktonic communities) exposed to various stresses, including chemical stresses. This led me to consider the stability, as a result of both resistance and resilience, of microbial communities exposed to disturbances. More recently, rather than considering microbial communities alone, I have broadened my research field in order to integrate them in the ecosystem. Thereby, I have coordinated a project that assessed the stability of a mangrove ecosystem after exposure to a long-term anthropic disturbance. We considered microorganisms, but also vegetation, crabs, meiofauna. Stability of ecosystem facing disturbances associated with global change and transitions to alternative stable states are now my main research topics.

Coordination / co-coordination of 8 scientific projects.

Supervision / co-supervision of 4 PhD students and 13 Master students.

Participation to the management committee of the building housing the laboratories of ecology at the University of Toulouse 3 (2011-current).

Participation to the ‘equipment’ commission of the laboratory EcoLab (2011-current).

Direction of the transverse axis ‘Biodiversity, Ecosystem functioning and Global Change’ of the laboratory EcoLab (2016-20).

Participation to the board meeting of the laboratory EcoLab (2016-2020).

Participation to the Scientific Committee of the Université Paul Sabatier – Toulouse 3 (2016-18).

Participation to the GDR MediatEC (Chemical Mediations in Ecosystems).

Main/Recent publications

Crenier C., K. Sanchez-Thirion, A. Bec, V. Felten, J. Ferriol, A.G. Gonzalez,J. Leflaive, F. Perriere, L. Ten-Hage, M. Danger (2019). Interactive impacts of silver and phosphorus on autotrophic biofilm elemental and biochemical quality for a macroinvertebrate consumer.Frontiers in Microbiology.

Capdeville C, K. Abdallah, R. Walcker, F. Fromard, J.-L. Rols,J. Leflaive(2019). Contrasted resistance and resilience of two mangrove forests after exposure to short-term and long-term anthropic disturbances.Marine Evironmental Research.

Capdeville C, T. Pommier, J. Gervaix, F. Fromard, J.-L. Rols,J. Leflaive(2019). Mangrove facies drives resistance and resilience of sediment microbes exposed to anthropic disturbance.Frontiers in Microbiology. 9:3337 doi: 10.3389/fmicb.2018.03337

Loustau E., J.L. Rols,J. Leflaive, C.E. Marcato-Romain, E. Neuhauser-Girbal (2018). Comparison of methods for extracellular polymeric substances extraction from aggregates of three biofilm-forming phototrophic micro-organisms.Canadian Journal of Microbiologydoi:10.1139/cjm-2018-0182. Sous presse.

Capdeville C, K. Abdallah, E. Buffan-Dubau, C. Lin, F. Azemar, L. Lambs, F. Fromard, J.-L. Rols,J. Leflaive(2018). Limited impact of several years of pretreated wastewater discharge on fauna and vegetation in a mangrove ecosystem.Marine Pollution Bulletin129: 379-391.

Allen J., L. Ten-Hage,J. Leflaive(2018) Regulation of fatty acids production and release in benthic algae: could parallel allelopathy be explained with plant defence theories?Microbial Ecology75:609-621.

Allen J.,J. Leflaive,C. Bringuier,L. Ten-Hage, E. Chauvet, J. Cornut, M. Danger (2017) Allelopathic inhibition of primary producer growth and photosynthesis by aquatic fungi.Fungal Ecology29:133-138.

Crenier C., J. Arce-Funck, A. Bec, E. Billoir, F. Perrière, J. Leflaive, F. Guérold, V. Felten, M. Danger (2017) Minor food sources can play a major role in secondary production in detritus-based ecosystems,Freshwater Biology62:1155-1167.

Gonzales A., L. Fernandez-Rojo,J. Leflaive,J.-L. Rols (2016) Response of three biofilm-forming benthic microorganisms to Ag nanoparticles and Ag+: the diatom Nitzschia palea,the green alga Uronema confervicolum and the cyanobacteria Leptolyngbya sp.Environmental Science and Pollution Research.23: 22136-22150.

Le Cohu R., A. Barthès,J. Leflaive, L. Ten-Hage (2016) Germainniella clandestina sp. nov. (Bacillariophyta), a new species in a little known diatom genus.Fottea. 16:184-188.

Allen J., L. Ten-Hage,J. Leflaive(2016) Allelopathic interactions involving benthic phototrophic microorganisms.Environmental MicrobiologyReports. 8:752-762.

Gonzales A., S. Mombo,J. Leflaive, A. Lamy, O.S. Pokrovski, J.-L. Rols.  (2015) Silver nanoparticles impact phototrophic biofilms communities to a considerably higher degree than ionic silver.Environmental Science and Pollution Research.22:8412-8424.

Paule, A., A. Biaz,J. Leflaive, J.R. Lawrence, J.-L. Rols (2015). Fate of the herbicide alachlore exposed to different microbial consortia in aquatic systems.Water, Air & Soil Pollution.226:3

Leflaive J, V. Felten, J. Ferriol, A. Lamy, L. Ten-Hage, A. Bec, M. Danger (2015) Community structure and nutrient level control the tolerance of autotrophic biofilm to silver contamination.Environmental Science and Pollution Research. 22:13739-13752.

Allen J., L. Ten-Hage,J. Leflaive(2015) Impairment of benthic diatom adhesion and photosynthetic activity by allelopathic compounds from a green alga: involvement of free fatty acids? Environmental Science and Pollution Research.22: 13669-13680.

Barthès A.,L. Ten-Hage, A. Lamy, J.-L. Rols,J.Leflaive. (2015) Resilience of aggregated microbial communities subjected to drought – small scale studies.Microbial Ecology.70:9-20.

Barthès A.,Leflaive J.,Coulon S., Peres F., Rols J.-L., Ten-Hage, L. (2015) Impact of drought on diatom communities and the consequences for the use of diatom index values in the Maureillas river (Pyrénées-Orientales, France).River Research and Application.8:993-1002. 

Desrosiers C., Witkowski A., Riaux-Gobin C., Zglobicka I., Kurzydłowski J.K.,  A. Eulin,J. Leflaive,L. Ten-Hage (2014). Madinithidiumgen. nov., a new monoraphid diatom (Bacillariophyceae) genus from the tropical marine coastal zone.Phycologia.53:583-592.

Desrosiers C.,J. Leflaive,A. Eulin, L. Ten-Hage (2014). Optimal colonization and grouwth of marine benthic diatoms on artificial substrates – Protocol for a routine use in bioindication.Journal of Applied Phycology26:1759-1771.

Desrosiers C.,J. Leflaive,A. Eulin, L. Ten-Hage (2013). Bioindicators in marine waters: Benthic diatoms as a tool to assess water quality from eutrophic to oligotrophic coastal ecosystems.Ecological Indicators, 32: 25-34.

Madji, N., B. Mialet, S. Boyer, M. Tackx,J. Leflaive,S. Boulêtereau, L. Ten-Hage, F. Julien, R. Fernandez, E. Buffan-Dubau (2012) The relationship between epilithic biofilm stability and its associated meiofauna under two patterns of flood disturbance.Freshwater Science(formerly JNABS), 31: 38-50.

Leflaive J., L. Ten-Hage (2011). Impairment of benthic diatom adhesion and photosynthetic activity by  2E,4E-decadienal. Research in Microbiology, 162: 982-989.

Leflaive J., L. Ten-Hage (2011). Effects of 2E,4E-decadienal on motility and aggregation of diatoms and on biofilm formation. Microbial Ecology, 61: 363-373.

Leflaive J., L. Ten-Hage (2009) Chemical interactions in diatoms: role of polyunsaturated aldehydes and precursors.New Phytologist, 184: 794-805.

Leflaive J., L. Ten-Hage (2009) Allelopathic interactions in benthic biofilms: effects of abiotic conditions on production of and sensitivity to allelochemicals.Journal of the North American Benthological Society, 28: 271-280.

Leflaive J.,S. Boulêtreau, E. Buffan-Dubau, L. Ten-Hage (2008). Temporal patterns in epilithic biofilm – relation with a putative allelopathic activity.Fundamental and Applied Limnology - Archive für Hydrobiologie,173: 121-134.

Leflaive J., M. Danger, G. Lacroix, E. Lyautey, L. Ten-Hage (2008) Nutrient effects on genetic and functional diversity of aquatic bacterial communities.FEMS-Microbiology Ecology,66: 379-390.

Leflaive J.,E. Buffan-Dubau, L. Ten-Hage (2008). Algal bioactive compounds reduce net oxygen fluxes of artificial diatom biofilms. Aquatic Microbial Ecology, 51, 276-284.

Leflaive J., G. Lacroix, Y. Nicaise, L. Ten-Hage (2008). Colony induction and growth inhibition in Desmodesmus quadrispina (Chlorococcales) by allelochemicals released from the filamentous alga Uronema confervicolum (Ulotrichales).Environmental Microbiology. 10, 1536-1546.

Mathieu, M.,J. Leflaive,L. Ten-Hage, R. de Wit, E. Buffan-Dubau (2007). Free-living nematodes affect oxygen turn-over of artificial diatom biofilms.Aquatic Microbial Ecology, 49, 281-291.

Danger, M.,J. Leflaive,C. Oumarou, L. Ten-Hage, G. Lacroix (2007). Phytoplankton-bacteria interactions stabilize freshwater eutrophication state.Oikos,116, 1079-1086.

Leflaive J., L. Ten-Hage (2007). Algal secondary metabolites in freshwaters: a comparison of allelopathic compounds and toxins.Freshwater Biology. 52, 199-214.

Leflaive J., R. Céréghino, M. Danger, G. Lacroix, L. Ten-Hage(2005). Assessment of Self-Organizing Maps to analyze sole-carbon source utilization profiles. Journal of Microbiological Methods, 62, 89-102.


Selection of recent/on going projects

RESILIENCE : Disentangling the roles of biological traits and metacommunity dynamics on the multifunctional resilience of neotropical ecosystems. (ANR, 2018-2021). Coordinator: Régis Céréghino.

EMPEC : Ecotoxicological evaluation of micro- and nano-plastic in continental waters (ANSES,2018-2021). Coordinator: L. Gauthier.

CLIMSHIFT : Regime shifts in freshwater ecosystems exposed to multiple stressors by increasing temperature, fertilizers and pesticides (ANR PRCI, 2018-2021). Coordinator: Elisabeth Gross / Herwig Stibor.

I-MuSCyc: Impact of multiple stressors (temperature, eutrophication & pesticides) on shifts and nutrient cycling in a benthic-pelagic community (EC2CO, 2018-2019). Coordinator: Joséphine Leflaive.

PROSECO: What processes control the functional resilience of neotropical ecosystems exposed to drought? (EC2CO, 2018-2019). Coordinator: Régis Céréghino.

MIXOPEAT: Rethinking the peatland biological C pump. (ANR, 2017-2020). Coordinator: Vincent Jassey.

Impact of pretreated wastewaters on benthic biocenosis of a mangrove. Application to a pilote site in Mayotte (ONEMA, 2014-2017). Coordinators : Joséphine Leflaive and Jean-Luc Rols.

Biocenose des sédiments de mangrove et Bioremédiation (PEPS Mangroves, CNRS, 2015). Coordinator: Joséphine Leflaive.

I teach microbial ecology, chemical ecology, microbiology and plant biology to postgraduate and undergraduate students at the University of Toulouse.

I am in charge of teaching of chemical ecology (Licence 2) and microbial ecology (Master 1).

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