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Dr Nathalie Wéry obtained an Engineering Diploma (1997) and a PhD in Microbiology and Biotechnology (2000) of the National Institute of Applied Sciences (INSA) in Toulouse, France. Her research first dealt with microbiology in extreme environments and potential industrial applications (thermophiles from deep-sea hydrothermal vents, psychrophiles from Antarctic soils). After 2 years of post-doctoral position in the Centre for Extremophiles Research of University of Bath (UK), she joined in 2003 the ‘Microbial Diversity’ team of the Laboratory of Environmental Biotechnology (LBE, INRA, Narbonne) as a Research Scientist.

CONTACT : nathalie.wery (arobase) inra.fr

Research interests

Fate of pathogenic bacteria during the treatment of organic residues 

• Wastewater treatment and REUSE
• Composting
• Anaerobic Digestion

In particular, my research are focusing on the following questions:

• Are ‘regrowth’ of pathogenic bacteria linked to the Viable But Non Culturable’ (VBNC) state?
• Which microorganisms are released into the atmosphere during waste treatment or during the use of treated residues (compost, treated wastewater, digestates) and which area is impacted by bioaerosols emissions?
• What is a ‘healthy’ microbiota preventing the invasion by exogenous pathogenic bacteria?

Most significant papers

• Maynaud, G., Pourcher, A.-M., Ziebal, C., Cuny, A., Druilhe, C., Steyer, J.-P., and Wéry, N. 2016. Persistence and Potential Viable but Non-culturable State of Pathogenic Bacteria during Storage of Digestates from Agricultural Biogas Plants. Frontiers in Microbiology,  7(1469).  DOI:10.3389/fmicb.2016.01469
• Sialve, B., Gales, A., Hamelin, J., Wery, N., and Steyer, J.-P. 2015. Bioaerosol emissions from open microalgal processes and their potential environmental impacts: what can be learned from natural and anthropogenic aquatic environments? Current Opinion in Biotechnology,  33(0):279-286.  DOI:10.1016/j.copbio.2015.03.011
• Gales, A., Latrille, E., Wery, N., Steyer, J.-P., and Godon, J.-J. 2014. Needles of Pinus halepensis as Biomonitors of Bioaerosol Emissions. PloS one,  9(11):e112182.  DOI:10.1371/journal.pone.0112182
• Wéry, N. 2014. Bioaerosols from composting facilities - a review. Frontiers in Cellular and Infection Microbiology,  4. DOI:10.3389/fcimb.2014.00042
• Wery, N., Lhoutellier, C., Ducray, F., Delgenes, J.-P., and Godon, J.-J. 2008. Behaviour of pathogenic and indicator bacteria during urban wastewater treatment and sludge composting, as revealed by quantitative PCR. Water Research, 42(1-2):53-62. DOI: 10.1016/j.watres.2007.06.048

Other papers

• Maynaud, G., Druilhe, C., Daumoin, M., Jimenez, J., Patureau, D., Torrijos, M., Pourcher, A.-M., and Wéry, N. 2017. Characterisation of the biodegradability of post-treated digestates via the chemical accessibility and complexity of organic matter. Bioresource Technology,  213:65–74.  DOI:10.1016/j.biortech.2017.01.057
• Maynaud, G., Patureau, D., Druilhe, C., Ziebal, C., Jimenez, J., Torrijos, M., Pourcher, A.-M., and Wéry, N. 2017. Caractéristiques physico-chimiques et microbiologiques de digestats bruts et post-traités destinés à l’épandage agricole. Techniques Sciences Méthodes,  (5):33-50. DOI:10.1051/tsm/201705033
• Etchebarne-Marjotte, F., Echegoyen, M., Pereyra Alpuin, C. G., Van Houten, S. I., Sire, Y., Escudier, J.-L., Torrijos, M., Wéry, N., Santa-Catalina, G., Patureau, D., Jaeger, Y., Goral, B., Rampnoux, N., and Ojeda, H. 2016. Irri-Alt’Eau – Des eaux traitées en quantité et qualité maîtrisées pour l’irrigation par goutte-à-goutte de la vigne. Revue des Oenologues et des Techniques Vitivinicoles et Oenologiques,  (161):12-15. Lien vers la revue
• Kacem, M., Bru-Adan, V., Goetz, V., Steyer, J. P., Plantard, G., Sacco, D., and Wery, N. 2016. Inactivation of Escherichia coli by TiO2-mediated photocatalysis evaluated by a culture method and viability-qPCR. Journal of Photochemistry and Photobiology A: Chemistry,  317:81-87.  DOI:10.1016/j.jphotochem.2015.11.020
• Pype, M.-L., Donose, B. C., Martí, L., Patureau, D., Wery, N., and Gernjak, W. 2016. Virus removal and integrity in aged RO membranes. Water Research,  90:167-175.  DOI:10.1016/j.watres.2015.12.023
• Gales, A., Bru-Adan, V., Godon, J. J., Delabre, K., Catala, P., Ponthieux, A., Chevallier, M., Birot, E., Steyer, J. P., and Wery, N. 2015. Predominance of single bacterial cells in composting bioaerosols. Atmospheric Environment,  107:225-232.  DOI:10.1016/j.atmosenv.2015.02.035
• Kacem, M., Goetz, V., Plantard, G., and Wery, N. 2015. Modeling heterogeneous photocatalytic inactivation of E-coli using suspended and immobilized TiO2 reactors. Aiche Journal,  61(8):2532-2542.  DOI:10.1002/aic.14834
• Kacem, M., Plantard, G., Wery, N., and Goetz, V. 2014. Kinetics and efficiency displayed by supported and suspended TiO2 catalysts applied to the disinfection of Escherichia coli. Chinese Journal of Catalysis,  35(9):1571-1577.  DOI:10.1016/S1872-2067(14)60212-6
• Pype, M.-L., Patureau, D., Wery, N., Poussade, Y., and Gernjak, W. (2013). Monitoring Reverse Osmosis Performance: Conductivity versus Fluorescence Excitation-Emission Matrix (EEM). Journal of Membrane Science, 428:205-211. DOI: 10.1016/j.memsci.2012.10.027
• Jeanneau, L., Solecki, O., Wery, N., Jarde, E., Gourmelon, M., Communal, P. Y., Jadas-Hecart, A., Caprais, M. P., Gruau, G., and Pourcher, A. M. 2012. Relative Decay of Fecal Indicator Bacteria and Human-Associated Markers: A Microcosm Study Simulating Wastewater Input into Seawater and Freshwater. Environmental Science & Technology, 46(4):2375-2382. DOI: 10.1021/es203019y
• Le Goff, O., Godon, J.-J., Milferstedt, K., Bacheley, H., Steyer, J.-P., and Wéry, N. 2012. A new combination of microbial indicators for monitoring composting bioaerosols. Atmospheric Environment, 61(0):428-433. DOI: 10.1016/j.atmosenv.2012.07.081
• Renault, D., Vallance, J., Deniel, F., Wery, N., Godon, J. J., Barbier, G., and Rey, P. 2012. Diversity of Bacterial Communities that Colonize the Filter Units Used for Controlling Plant Pathogens in Soilless Cultures. Microbial Ecology, 63(1):170-187. DOI: 10.1007/s00248-011-9961-1
• Le Goff, O., Godon, J.-J., Steyer, J.-P., and Wéry, N. 2011. New specific indicators for qPCR monitoring of airborne microorganisms emitted by composting plants. Atmospheric Environment, 45:5342-5350. DOI: 10.1016/j.atmosenv.2011.06.052
• Gourmelon M., M.P. Caprais, S. Mieszkin, R. Marti, N. Wéry, E. Jardé, M. Derrien, A. Jadas-Hécart, P.Y. Communal, A. Jaffrezic, A.M. Pourcher. (2010) Development of microbial and chemical MST tools to identify the origin of the faecal pollution in bathing and shellfish harvesting waters in France. Water Research. DOI: 10.1016/j.watres.2010.07.061
• Moletta-Denat M., V. Bru-Adan, J.-P. Delgenes, J. Hamelin, N. Wéry, J.-J. Godon. (2010) Selective microbial aerosolization in biogas demonstrated by quantitative PCR. Bioresource Technology 101: 7252-7257. DOI: 10.1016/j.biortech.2010.04.035
• Wéry, N., Monteil, C., Pourcher A.-M., and Godon, J.-J. (2010) Human-specific fecal bacteria in wastewater treatment plant effluents. Water Research, 44:1873-1883. DOI: 10.1016/j.watres.2009.11.027
• Le Goff, O., Bru-Adan, V., Bacheley, H., Godon, J.-J., and Wery, N. (2010). The microbial signature of aerosols produced during the thermophilic phase of composting. Journal of Applied Microbiology, 108 :325-340. DOI: 10.1111/j.1365-2672.2009.04427.x