15 results on '"Tetreau, Guillaume"'
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2. Fitness of Bt-resistant cabbage loopers on Bt cotton plants
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Tetreau, Guillaume, Wang, Ran, Wang, Ping, TETREAU, Guillaume, Laboratoire d'Ecologie Alpine (LECA ), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Institute of Plant and Environment Protection, Beijing Academy of Agriculture and Forestry Sciences, and University of Turku
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[SDV] Life Sciences [q-bio] ,[SDV]Life Sciences [q-bio] ,[SDV.EE.IEO] Life Sciences [q-bio]/Ecology, environment/Symbiosis ,ComputingMilieux_MISCELLANEOUS ,[SDV.EE.IEO]Life Sciences [q-bio]/Ecology, environment/Symbiosis - Abstract
International audience
- Published
- 2017
3. Receptors are affected by selection with each Bacillus thuringiensis israelensis Cry toxin but not with the full Bti mixture in Aedes aegypti
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Stalinski, Renaud, Laporte, Frederic, Tetreau, Guillaume, Despres, Laurence, Laboratoire d'Ecologie Alpine (LECA ), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Laboratoire de Biologie des Populations d'Altitude, Centre National de la Recherche Scientifique (CNRS), and TETREAU, Guillaume
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[SDV] Life Sciences [q-bio] ,[SDV]Life Sciences [q-bio] ,[SDV.BBM.GTP]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Genomics [q-bio.GN] ,[SDV.BBM.GTP] Life Sciences [q-bio]/Biochemistry, Molecular Biology/Genomics [q-bio.GN] ,[SDV.EE.IEO] Life Sciences [q-bio]/Ecology, environment/Symbiosis ,ComputingMilieux_MISCELLANEOUS ,[SDV.EE.IEO]Life Sciences [q-bio]/Ecology, environment/Symbiosis - Abstract
International audience
- Published
- 2016
4. Multifaceted biological insights from a draft genome sequence of the tobacco hornworm moth, Manduca sexta
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Kanost, Michael, Arrese, Estela, Cao, Xiaolong, Chen, Yun-Ru, Chellapilla, Sanjay, Goldsmith, Marian, Grosse-Wilde, Ewald, Heckel, David, Herndon, Nicolae, Jiang, Haobo, Papanicolaou, Alexie, Qu, Jiaxin, Soulages, Jose, Vogel, Heiko, Walters, James, Waterhouse, Robert, Ahn, Seung-Joon, Almeida, Francisca, An, Chunju, Aqrawi, Peshtewani, An, Anne, Bryant, William, Bucks, Sascha, Chao, Hsu, Chevignon, Germain, Christen, Jayne, Clarke, David, Dittmer, Neal, Ferguson, Laura C.F., Garavelou, Spyridoula, Gordon, Karl H.J., Gunaratna, Ramesh, Han, Yi, Hauser, Frank, He, Yan, Hirsh, Ariana, Hu, Yi, Jiang, Hongbo, Kalra, Divya, Klinner, Christian, König, Christopher, Kovar, Christie, Kroll, Ashley, Kuwar, Suyog, Lee, Sandy, Lehman, Rüdiger, Li, Kai, Li, Zhaofei, Han, Hanquan, Lovelace, Shanna, Lu, Zhiqiang, Mansfield, Jennifer, Mcculloch, Kyle, Mathew, Tittu, Morton, Brian, Muzny, Donna, Neunemann, David, Ongeri, Fiona, Pauchet, Yan, Li, Ling-Ling, Pyrousis, Ioannis, Rao, Xiang-Jun, Redding, Amanda, Roesel, Charles, Sanchez-Gracia, Alejandro, Schaack, Sarah, Shukla, Aditi, Tetreau, Guillaume, Wang, Yan, Hu, Guang-Hua, Traut, Walther, Walsh, Tom, Worley, Kim, Wu, Di, Wu, Wenbi, Wu, Yuan-Qing, Zhang, Xiufeng, Zou, Zhen, Han, Hanna, Briscoe, Adriana, Burmester, Thorsten, Clem, Rollie, Feyereisen, René, Grimmelikhuijzen, Cornelis J.P., Hamodrakas, Stavros, Han, Bill, Hu, Elisabeth, Jermiin, Lars, Qu, Que, He, Herman, Lorenzen, Marce, Han, Hans, Michalopoulos, Ioannis, Morton, David, Muthukrishnan, Subbaratnam, Oakeshott, John, Palmer, Will, Park, Yoonseong, Passarelli, A. Lorena, Rozas, Julio, Schwartz, Lawrence, Smith, Wendy, Southgate, Agnes, An, Andreas, Vogt, Richard, Wang, Ping, Werren, John, Yu, Xiao-Qiang, Jiang, Jing-Jiang, Brown, Susan, Scherer, Steven, Richards, Richard, Blissard, Gary, National Tsing Hua University [Hsinchu] (NTHU), University of Rhode Island (URI), Max Planck Institute for Chemical Ecology, Max-Planck-Gesellschaft, Dpt of Entomology and Plant Pathology, Oklahoma State University [Stillwater], Ecosystem Sciences, Commonwealth Scientific and Industrial Research Organisation [Canberra] (CSIRO), MRC Centre for Neuropsychiatric Genetics and Genomics, Medical Research Council-Cardiff University, Université de Lausanne (UNIL), Institut de recherche sur la biologie de l'insecte UMR7261 (IRBI), Université de Tours (UT)-Centre National de la Recherche Scientifique (CNRS), University of Melbourne, Institut de biotechnologie des plantes (IBP), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Huazhong University of Science and Technology [Wuhan] (HUST), Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (ICube), Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), University of North Carolina [Chapel Hill] (UNC), University of North Carolina System (UNC), Human Genome Sequencing Center, Baylor College of Medicine, Baylor College of Medicine (BCM), Baylor University-Baylor University, Laboratoire d'Ecologie Alpine (LECA ), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Laboratoire Interdisciplinaire Carnot de Bourgogne [Dijon] (LICB), Université de Bourgogne (UB)-Université de Technologie de Belfort-Montbeliard (UTBM)-Centre National de la Recherche Scientifique (CNRS), Human Genome Sequencing Center [Houston] (HGSC), Laboratoire de Recherche en Informatique et ses Applications de Vannes et Lorient (VALORIA), Université de Bretagne Sud (UBS), Régulation des gènes et signalisation cellulaire, Institut National de la Santé et de la Recherche Médicale (INSERM), Biocenter Grindel, Zoological Museum-University of Hamburg, Institut Sophia Agrobiotech (ISA), Centre National de la Recherche Scientifique (CNRS)-Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut National de la Recherche Agronomique (INRA), Biophysics and Bioinformatics Laboratory, Northwestern University [Evanston], Department of Entomology, Michigan State University [East Lansing], Michigan State University System-Michigan State University System, Departament de Genètica and Institut de Recerca de la Biodiversitat, Universitat de Barcelona (UB), Laboratoire d'informatique de l'École polytechnique [Palaiseau] (LIX), École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), University of Turku, Nottingham University Business School, The Hospital for sick children [Toronto] (SickKids), Université de Tours-Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Matériaux et nanosciences d'Alsace, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM), Laboratoire d'Ecologie Alpine (LECA), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Université Joseph Fourier - Grenoble 1 (UJF)-Université Grenoble Alpes (UGA), Université de Technologie de Belfort-Montbeliard (UTBM)-Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), Institut Sophia Agrobiotech [Sophia Antipolis] (ISA), Institut National de la Recherche Agronomique (INRA)-Université Nice Sophia Antipolis (... - 2019) (UNS), Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), Department of Industrial Engineering and Management Sciences, Northwestern University, Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X), TETREAU, Guillaume, Oklahoma State University [Stillwater] (OSU), Université de Lausanne = University of Lausanne (UNIL), École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Université de Strasbourg (UNISTRA)-Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Les Hôpitaux Universitaires de Strasbourg (HUS)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Department of Entomology and Plant Pathology [Oklahoma State University], Institut National de la Recherche Agronomique (INRA)-Université Nice Sophia Antipolis (1965 - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS), and Nottingham University Business School [Nottingham]
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[SDV.BBM.GTP]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Genomics [q-bio.GN] ,[SDV.BBM.GTP] Life Sciences [q-bio]/Biochemistry, Molecular Biology/Genomics [q-bio.GN] ,ComputingMilieux_MISCELLANEOUS - Abstract
International audience
- Published
- 2016
5. Alkaline phosphatases are involved in the response of Aedes aegypti larvae to intoxication with Bacillus thuringiensis subsp. israelensis Cry toxins
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Stalinski, Renaud, Laporte, Frédéric, Despres, Laurence, Tetreau, Guillaume, TETREAU, Guillaume, Laboratoire d'Ecologie Alpine (LECA ), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Laboratoire de Biologie des Populations d'Altitude, and Centre National de la Recherche Scientifique (CNRS)
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[SDV] Life Sciences [q-bio] ,[SDV]Life Sciences [q-bio] ,[SDV.BBM.GTP]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Genomics [q-bio.GN] ,[SDV.BBM.GTP] Life Sciences [q-bio]/Biochemistry, Molecular Biology/Genomics [q-bio.GN] ,[SDV.EE.IEO] Life Sciences [q-bio]/Ecology, environment/Symbiosis ,ComputingMilieux_MISCELLANEOUS ,[SDV.EE.IEO]Life Sciences [q-bio]/Ecology, environment/Symbiosis - Abstract
International audience
- Published
- 2016
6. Bacterial microbiota of Aedes aegypti mosquito larvae is altered by intoxication with Bacillus thuringiensis israelensis
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Tetreau, Guillaume, Grizard, Stéphanie, Patil, Chandrashekhar, Tran, Florence-Hélène, Tran Van, Van, Stalinski, Renaud, Laporte, Frédéric, Mavingui, Patrick, Despres, Laurence, Valiente Moro, Claire, Laboratoire d'Ecologie Alpine (LECA ), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Centre de recherches insulaires et observatoire de l'environnement (CRIOBE), Université de Perpignan Via Domitia (UPVD)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Ecologie Microbienne - UMR 5557 (LEM), Institut National de la Recherche Agronomique (INRA)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Ecole Nationale Vétérinaire de Lyon (ENVL), Service de Réanimation Médicale, CHU Bordeaux [Bordeaux]-Groupe hospitalier Pellegrin, Laboratoire de Biologie des Populations d'Altitude, Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Ecologie Alpine (LECA), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Université Joseph Fourier - Grenoble 1 (UJF)-Université Grenoble Alpes (UGA), Université de Perpignan Via Domitia (UPVD)-École pratique des hautes études (EPHE)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Ecole Nationale Vétérinaire de Lyon (ENVL)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de la Recherche Agronomique (INRA)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS), ERA-NET BiodivERsA, DFG KL2087/6-1, ANR-13-EBID-0007-01, and FWFI-1437
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moustique ,Mosquito Control ,[SDV]Life Sciences [q-bio] ,Bacillus thuringiensis ,[SDV.BID]Life Sciences [q-bio]/Biodiversity ,Holobiont ,lcsh:Infectious and parasitic diseases ,microbiote ,aedes aegypti ,intoxication ,Aedes ,[SDV.BBM.GTP]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Genomics [q-bio.GN] ,Larval microbiota ,bcterial community fingerprinting ,Bacterial community fingerprinting ,Animals ,lcsh:RC109-216 ,Pest Control, Biological ,ComputingMilieux_MISCELLANEOUS ,Gram-Positive Bacterial Infections ,Denaturing gradient gel electrophoresis (DGGE) ,diptera ,bacillus thuringiensis ,denaturing gradient gel electrophoresis (DGGE) ,larval microbiota ,holobiont ,Denaturing Gradient Gel Electrophoresis ,Microbiota ,Research ,Diptera ,Microbiology and Parasitology ,fungi ,DNA Fingerprinting ,Microbiologie et Parasitologie ,larve ,[SDV.BA.ZI]Life Sciences [q-bio]/Animal biology/Invertebrate Zoology ,Larva ,bacillus thuringiensis var. israelensis ,[SDV.EE.IEO]Life Sciences [q-bio]/Ecology, environment/Symbiosis - Abstract
Background Insect microbiota is a dynamic microbial community that can actively participate in defense against pathogens. Bacillus thuringiensis (Bt) is a natural entomopathogen widely used as a bioinsecticide for pest control. Although Bt’s mode of action has been extensively studied, whether the presence of microbiota is mandatory for Bt to effectively kill the insect is still under debate. An association between a higher tolerance and a modified microbiota was already evidenced but a critical point remained to be solved: is the modified microbiota a cause or a consequence of a higher tolerance to Bt? Methods In this study we focused on the mosquito species Aedes aegypti, as no work has been performed on Diptera on this topic to date, and on B. thuringiensis israelensis (Bti), which is used worldwide for mosquito control. To avoid using antibiotics to cure bacterial microbiota, mosquito larvae were exposed to an hourly increasing dose of Bti during 25 hours to separate the most susceptible larvae dying quickly from more tolerant individuals, with longer survival. Results Denaturing gradient gel electrophoresis (DGGE) fingerprinting revealed that mosquito larval bacterial microbiota was strongly affected by Bti infection after only a few hours of exposure. Bacterial microbiota from the most tolerant larvae showed the lowest diversity but the highest inter-individual differences. The proportion of Bti in the host tissue was reduced in the most tolerant larvae as compared to the most susceptible ones, suggesting an active control of Bti infection by the host. Conclusions Here we show that a modified microbiota is associated with a higher tolerance of mosquitoes to Bti, but that it is rather a consequence of Bti infection than the cause of the higher tolerance. This study paves the way to future investigations aiming at unraveling the role of host immunity, inter-species bacterial competition and kinetics of host colonization by Bti that could be at the basis of the phenotype observed in this study. Electronic supplementary material The online version of this article (10.1186/s13071-018-2741-8) contains supplementary material, which is available to authorized users.
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- 2017
7. Pre-selecting resistance against individual Bti Cry toxins facilitates the development of resistance to the Bti toxins cocktail
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Stalinski, Renaud, Tetreau, Guillaume, Gaude, Thierry, Despres, Laurence, Laboratoire d'Ecologie Alpine (LECA), Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), Reproduction et développement des plantes (RDP), École normale supérieure - Lyon (ENS Lyon)-Institut National de la Recherche Agronomique (INRA)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Biologie des Populations d'Altitude, Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), École normale supérieure de Lyon (ENS de Lyon)-Institut National de la Recherche Agronomique (INRA)-Université Claude Bernard Lyon 1 (UCBL), TETREAU, Guillaume, and Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Université Joseph Fourier - Grenoble 1 (UJF)-Université Grenoble Alpes (UGA)
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[SDV] Life Sciences [q-bio] ,[SDV]Life Sciences [q-bio] ,[SDV.EE.IEO] Life Sciences [q-bio]/Ecology, environment/Symbiosis ,ComputingMilieux_MISCELLANEOUS ,[SDV.EE.IEO]Life Sciences [q-bio]/Ecology, environment/Symbiosis - Abstract
International audience
- Published
- 2014
8. The Cultivation of Bt Corn Producing Cry1Ac Toxins Does Not Adversely Affect Non-Target Arthropods
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Guo, Yanyan, Feng, Yanjie, Ge, Yang, Tetreau, Guillaume, Chen, Xiaowen, Dong, Xuehui, Shi, Wangpeng, Desneux, Nicolas, School of Information, Renmin University of China, Beijing, Laboratoire d'Ecologie Alpine (LECA), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Université Joseph Fourier - Grenoble 1 (UJF)-Université Grenoble Alpes (UGA), Institut Sophia Agrobiotech [Sophia Antipolis] (ISA), Institut National de la Recherche Agronomique (INRA)-Université Nice Sophia Antipolis (... - 2019) (UNS), Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut Sophia Agrobiotech (ISA), Centre National de la Recherche Scientifique (CNRS)-Université Nice Sophia Antipolis (... - 2019) (UNS), and COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut National de la Recherche Agronomique (INRA)
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[SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems ,[SDE]Environmental Sciences ,ComputingMilieux_MISCELLANEOUS - Abstract
International audience
- Published
- 2014
9. INCREASE IN LARVAL GUT PROTEOLYTIC ACTIVITIES AND Bti RESISTANCE IN THE DENGUE FEVER MOSQUITO
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Tetreau, Guillaume, Stalinski, Renaud, David, Jean-Philippe, Despres, Laurence, Laboratoire d'Ecologie Alpine (LECA), Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), Aménagement, Développement, Environnement, Santé et Sociétés (ADES), Centre National de la Recherche Scientifique (CNRS)-Université Bordeaux Segalen - Bordeaux 2-Université Bordeaux Montaigne, Laboratoire de Biologie des Populations d'Altitude, and Centre National de la Recherche Scientifique (CNRS)
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[SDV]Life Sciences [q-bio] ,[SDV.BBM.BC]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Biochemistry [q-bio.BM] ,ComputingMilieux_MISCELLANEOUS - Abstract
International audience
- Published
- 2013
10. Lethal and sublethal effects of dinotefuran on two invasive whiteflies, Bemisia tabaci (Hemiptera: Aleyrodidae)
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Ran Wang, Guillaume Tetreau, Wei Zhang, Chen Luo, Fengqi Li, Cheng Qu, TETREAU, Guillaume, Institute of Plant and Environment Protection, Beijing Academy of Agriculture and Forestry Sciences, Laboratoire d'Ecologie Alpine (LECA ), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, and Northwest A and F University
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0106 biological sciences ,[SDV.EE]Life Sciences [q-bio]/Ecology, environment ,Species complex ,biology ,[SDV]Life Sciences [q-bio] ,Neonicotinoid ,Whitefly ,010501 environmental sciences ,biology.organism_classification ,Fecundity ,01 natural sciences ,Hemiptera ,Dinotefuran ,Toxicology ,[SDV] Life Sciences [q-bio] ,010602 entomology ,chemistry.chemical_compound ,[SDV.EE] Life Sciences [q-bio]/Ecology, environment ,Transgenerational epigenetics ,chemistry ,Insect Science ,Nymph ,ComputingMilieux_MISCELLANEOUS ,0105 earth and related environmental sciences - Abstract
Two invasive whitefly cryptic species, Middle East-Asia Minor 1 (MEAM1) and Mediterranean (MED), are the most invasive and notorious pests on diverse crops and have significantly impacted agricultural production systems globally. This circumstance emphasizes the need for a better approach for controlling these species. In this study, the lethal effect of six insecticides and the sublethal effects of dinotefuran on B. tabaci MEAM1 and MED were examined. Among the six insecticides tested, dinotefuran was the most toxic to both B. tabaci MEAM1 and MED adults with LC 50 values of 5.54 mg/L and 6.01 mg/L, respectively. After treating adults of the two important species with LC 25 of 1.70 mg/L (MEAM1) and 2.12 mg/L (MED), the transgenerational effects of dinotefuran on survival, developmental duration, and fecundity of F 1 generation of B. tabaci MEAM1 and MED adults were observed respectively, which increased the developmental time and decreased survival rates of nymph, pseudopupa and adult. The fecundity of tested females was also reduced markedly. In summary, these results indicate that dinotefuran could be one excellent candidate that may effectively control two invasive whitefly populations.
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- 2017
11. Effect of crop plants on fitness costs associated with resistance to Bacillus thuringiensis toxins Cry1Ac and Cry2Ab in cabbage loopers
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Ping Wang, Ran Wang, Guillaume Tetreau, Institute of Plant and Environment Protection, Beijing Academy of Agriculture and Forestry Sciences, Laboratoire d'Ecologie Alpine (LECA ), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), University of Turku, and TETREAU, Guillaume
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Crops, Agricultural ,0106 biological sciences ,0301 basic medicine ,[SDV.BIO]Life Sciences [q-bio]/Biotechnology ,Oviposition ,[SDV]Life Sciences [q-bio] ,Bacillus thuringiensis ,Brassica ,Moths ,01 natural sciences ,Article ,Host-Parasite Interactions ,Insecticide Resistance ,Toxicology ,Crop ,Hemolysin Proteins ,03 medical and health sciences ,Bacterial Proteins ,Trichoplusia ,Animals ,Population dynamics ,ComputingMilieux_MISCELLANEOUS ,2. Zero hunger ,[SDV.EE]Life Sciences [q-bio]/Ecology, environment ,Multidisciplinary ,Bacillus thuringiensis Toxins ,Resistance (ecology) ,biology ,business.industry ,Reproduction ,fungi ,Pupa ,biology.organism_classification ,Fecundity ,[SDV.BIO] Life Sciences [q-bio]/Biotechnology ,Biotechnology ,Endotoxins ,Plant Leaves ,[SDV] Life Sciences [q-bio] ,Kinetics ,[SDV.EE] Life Sciences [q-bio]/Ecology, environment ,010602 entomology ,030104 developmental biology ,Cry1Ac ,Larva ,business - Abstract
Fitness costs associated with resistance to Bacillus thuringiensis (Bt) toxins critically impact the development of resistance in insect populations. In this study, the fitness costs in Trichoplusia ni strains associated with two genetically independent resistance mechanisms to Bt toxins Cry1Ac and Cry2Ab, individually and in combination, on four crop plants (cabbage, cotton, tobacco and tomato) were analyzed, in comparison with their near-isogenic susceptible strain. The net reproductive rate (R0) and intrinsic rate of increase (r) of the T. ni strains, regardless of their resistance traits, were strongly affected by the host plants. The ABCC2 gene-linked mechanism of Cry1Ac resistance was associated with relatively low fitness costs, while the Cry2Ab resistance mechanism was associated with higher fitness costs. The fitness costs in the presence of both resistance mechanisms in T. ni appeared to be non-additive. The relative fitness of Bt-resistant T. ni depended on the specific resistance mechanisms as well as host plants. In addition to difference in survivorship and fecundity, an asynchrony of adult emergence was observed among T. ni with different resistance mechanisms and on different host plants. Therefore, mechanisms of resistance and host plants available in the field are both important factors affecting development of Bt resistance in insects.
- Published
- 2016
12. Analysis of chitin-binding proteins from Manduca sexta provides new insights into evolution of peritrophin A-type chitin-binding domains in insects
- Author
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Jiang Haobo, Guillaume Tetreau, Yun-Ru Chen, Ping Wang, Xiaolong Cao, Gary W. Blissard, Subbaratnam Muthukrishnan, Sinu Agrawal, Neal T. Dittmer, Michael R. Kanost, TETREAU, Guillaume, Laboratoire d'Ecologie Alpine (LECA), Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), National Tsing Hua University [Hsinchu] (NTHU), and University of Turku
- Subjects
0106 biological sciences ,Insecta ,media_common.quotation_subject ,[SDV]Life Sciences [q-bio] ,Genome, Insect ,Molecular Sequence Data ,Chitin ,Insect ,Biology ,01 natural sciences ,Biochemistry ,Article ,03 medical and health sciences ,chemistry.chemical_compound ,Chitin binding ,Catalytic Domain ,Manduca ,[SDV.BBM.GTP]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Genomics [q-bio.GN] ,Gene duplication ,Botany ,Animals ,Amino Acid Sequence ,Molecular Biology ,Gene ,Phylogeny ,ComputingMilieux_MISCELLANEOUS ,030304 developmental biology ,media_common ,Genetics ,0303 health sciences ,Phylogenetic tree ,fungi ,Chitinases ,Biological Evolution ,Chitin deacetylase ,[SDV] Life Sciences [q-bio] ,010602 entomology ,chemistry ,Insect Science ,Multigene Family ,Chitinase ,biology.protein ,Insect Proteins ,[SDV.BBM.GTP] Life Sciences [q-bio]/Biochemistry, Molecular Biology/Genomics [q-bio.GN] ,Carrier Proteins - Abstract
In insects, chitin is a major structural component of the cuticle and the peritrophic membrane (PM). In nature, chitin is always associated with proteins among which chitin-binding proteins (CBPs) are the most important for forming, maintaining and regulating the functions of these extracellular structures. In this study, a genome-wide search for genes encoding proteins with ChtBD2-type (peritrophin A-type) chitin-binding domains (CBDs) was conducted. A total of 53 genes encoding 56 CBPs were identified, including 15 CPAP1s (cuticular proteins analogous to peritrophins with 1 CBD), 11 CPAP3s (CPAPs with 3 CBDs) and 17 PMPs (PM proteins) with a variable number of CBDs, which are structural components of cuticle or of the PM. CBDs were also identified in enzymes of chitin metabolism including 6 chitinases and 7 chitin deacetylases encoded by 6 and 5 genes, respectively. RNA-seq analysis confirmed that PMP and CPAP genes have differential spatial expression patterns. The expression of PMP genes is midgut-specific, while CPAP genes are widely expressed in different cuticle forming tissues. Phylogenetic analysis of CBDs of proteins in insects belonging to different orders revealed that CPAP1s from different species constitute a separate family with 16 different groups, including 6 new groups identified in this study. The CPAP3s are clustered into a separate family of 7 groups present in all insect orders. Altogether, they reveal that duplication events of CBDs in CPAP1s and CPAP3s occurred prior to the evolutionary radiation of insect species. In contrast to the CPAPs, all CBDs from individual PMPs are generally clustered and distinct from other PMPs in the same species in phylogenetic analyses, indicating that the duplication of CBDs in each of these PMPs occurred after divergence of insect species. Phylogenetic analysis of these three CBP families showed that the CBDs in CPAP1s form a clearly separate family, while those found in PMPs and CPAP3s were clustered together in the phylogenetic tree. For chitinases and chitin deacetylases, most of phylogenetic analysis performed with the CBD sequences resulted in similar clustering to the one obtained by using catalytic domain sequences alone, suggesting that CBDs were incorporated into these enzymes and evolved in tandem with the catalytic domains before the diversification of different insect orders. Based on these results, the evolution of CBDs in insect CBPs is discussed to provide a new insight into the CBD sequence structure and diversity, and their evolution and expression in insects.
- Published
- 2015
13. UV light and urban pollution: Bad cocktail for mosquitoes?
- Author
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Renaud Stalinski, Alexia Chandor-Proust, Myriam Régent-Kloeckner, Guillaume Tetreau, Sophie M. Prud’homme, Frédéric Faucon, Stéphane Reynaud, Idir Akhouayri, Muriel Raveton, TETREAU, Guillaume, Laboratoire d'Ecologie Alpine (LECA), Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), Université Blaise Pascal - Clermont-Ferrand 2 (UBP), ASTRIUM, EADS - European Aeronautic Defense and Space, and Université Joseph Fourier - Grenoble 1 (UJF)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)
- Subjects
[SDE] Environmental Sciences ,Urban Population ,Ultraviolet Rays ,[SDV]Life Sciences [q-bio] ,Health, Toxicology and Mutagenesis ,Population ,Aedes aegypti ,Aquatic Science ,Insecticide Resistance ,Toxicology ,chemistry.chemical_compound ,Aedes ,Imidacloprid ,[SDV.BBM.GTP]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Genomics [q-bio.GN] ,parasitic diseases ,medicine ,Animals ,Polycyclic Aromatic Hydrocarbons ,education ,ComputingMilieux_MISCELLANEOUS ,Fluoranthene ,Abiotic component ,Pollutant ,education.field_of_study ,biology ,fungi ,[SDV.EE.IEO] Life Sciences [q-bio]/Ecology, environment/Symbiosis ,Propoxur ,biology.organism_classification ,[SDV] Life Sciences [q-bio] ,chemistry ,Larva ,Environmental chemistry ,[SDE]Environmental Sciences ,[SDV.BBM.GTP] Life Sciences [q-bio]/Biochemistry, Molecular Biology/Genomics [q-bio.GN] ,Environmental Pollutants ,Reactive Oxygen Species ,[SDV.EE.IEO]Life Sciences [q-bio]/Ecology, environment/Symbiosis ,Permethrin ,medicine.drug - Abstract
Mosquito breeding sites consist of water pools, which can either be large open areas or highly covered ponds with vegetation, thus with different light exposures combined with the presence in water of xenobiotics including polycyclic aromatic hydrocarbons (PAHs) generated by urban pollution. UV light and PAHs are abiotic factors known to both affect the mosquito insecticide resistance status. Nonetheless, their potential combined effects on the mosquito physiology have never been investigated. The present article aims at describing the effects of UV exposure alongside water contamination with two major PAH pollutants (fluoranthene and benzo[a]pyrene) on a laboratory population of the yellow fever mosquito Aedes aegypti. To evaluate the effects of PAH exposure and low energetic UV (UV-A) irradiation on mosquitoes, different parameters were measured including: (1) The PAH localization and its impact on cell mortality by fluorescent microscopy; (2) The detoxification capacities (cytochrome P450, glutathione-S-transferase, esterase); (3) The responses to oxidative stress (Reactive Oxygen Species-ROS) and (4) The tolerance of mosquito larvae to a bioinsecticide (Bacillus thuringiensis subsp. israelensis-Bti) and to five chemical insecticides (DDT, imidacloprid, permethrin, propoxur and temephos). Contrasting effects regarding mosquito cell mortality, detoxification and oxidative stress were observed as being dependent on the pollutant considered, despite the fact that the two PAHs belong to the same family. Moreover, UV is able to modify pollutant effects on mosquitoes, including tolerance to three insecticides (imidacloprid, propoxur and temephos), cell damage and response to oxidative stress. Taken together, our results suggest that UV and pollution, individually or in combination, are abiotic parameters that can affect the physiology and insecticide tolerance of mosquitoes; but the complexity of their direct effect and of their interaction will require further investigation to know in which condition they can affect the efficacy of insecticide-based vector control strategies in the field.
- Published
- 2014
14. Production of the bioinsecticide Bacillus thuringiensis subsp. israelensis with deltamethrin increases toxicity towards mosquito larvae
- Author
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Tetreau, G., Patil, C.D., Chandor-Proust, A., Salunke, B.K., Patil, S.V., Despres, L., Laboratoire d'Ecologie Alpine (LECA), Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), and TETREAU, Guillaume
- Subjects
[SDV] Life Sciences [q-bio] ,[SDV.BIO]Life Sciences [q-bio]/Biotechnology ,[SDV]Life Sciences [q-bio] ,ComputingMilieux_MISCELLANEOUS ,[SDV.BIO] Life Sciences [q-bio]/Biotechnology - Abstract
International audience
- Published
- 2013
15. Contrasting patterns of tolerance between chemical and biological insecticides in mosquitoes exposed to UV-A
- Author
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Frédéric Faucon, Alexia Chandor-Proust, Guillaume Tetreau, Muriel Raveton, Renaud Stalinski, Stéphane Reynaud, Idir Akhouayri, Sophie M. Prud’homme, TETREAU, Guillaume, Laboratoire d'Ecologie Alpine (LECA), Université Joseph Fourier - Grenoble 1 (UJF)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Université Blaise Pascal - Clermont-Ferrand 2 (UBP), ASTRIUM, EADS - European Aeronautic Defense and Space, and Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])
- Subjects
[SDE] Environmental Sciences ,Insecticides ,Pesticide resistance ,Ultraviolet Rays ,Health, Toxicology and Mutagenesis ,[SDV]Life Sciences [q-bio] ,030231 tropical medicine ,Context (language use) ,Aedes aegypti ,Aquatic Science ,Biology ,Toxicology ,Insecticide Resistance ,03 medical and health sciences ,0302 clinical medicine ,[SDV.BBM.GTP]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Genomics [q-bio.GN] ,parasitic diseases ,medicine ,Animals ,ComputingMilieux_MISCELLANEOUS ,030304 developmental biology ,0303 health sciences ,fungi ,Neonicotinoid ,Pesticide ,biology.organism_classification ,3. Good health ,[SDV] Life Sciences [q-bio] ,Enzyme Activation ,Biopesticide ,Mosquito control ,Culicidae ,Gene Expression Regulation ,Larva ,[SDE]Environmental Sciences ,[SDV.BBM.GTP] Life Sciences [q-bio]/Biochemistry, Molecular Biology/Genomics [q-bio.GN] ,Cytochromes ,Permethrin ,medicine.drug - Abstract
Mosquitoes are vectors of major human diseases, such as malaria, dengue or yellow fever. Because no efficient treatments or vaccines are available for most of these diseases, control measures rely mainly on reducing mosquito populations by the use of insecticides. Numerous biotic and abiotic factors are known to modulate the efficacy of insecticides used in mosquito control. Mosquito breeding sites vary from opened to high vegetation covered areas leading to a large ultraviolet gradient exposure. This ecological feature may affect the general physiology of the insect, including the resistance status against insecticides. In the context of their contrasted breeding sites, we assessed the impact of low-energetic ultraviolet exposure on mosquito sensitivity to biological and chemical insecticides. We show that several mosquito detoxification enzyme activities (cytochrome P450, glutathione S-transferases, esterases) were increased upon low-energy UV-A exposure. Additionally, five specific genes encoding detoxification enzymes (CYP6BB2, CYP6Z7, CYP6Z8, GSTD4, and GSTE2) previously shown to be involved in resistance to chemical insecticides were found over-transcribed in UV-A exposed mosquitoes, revealed by RT-qPCR experiments. More importantly, toxicological bioassays revealed that UV-exposed mosquitoes were more tolerant to four main chemical insecticide classes (DDT, imidacloprid, permethrin, temephos), whereas the bioinsecticide Bacillus thuringiensis subsp. israelensis (Bti) appeared more toxic. The present article provides the first experimental evidence of the capacity of low-energy UV-A to increase mosquito tolerance to major chemical insecticides. This is also the first time that a metabolic resistance to chemical insecticides is linked to a higher susceptibility to a bioinsecticide. These results support the use of Bti as an efficient alternative to chemical insecticides when a metabolic resistance to chemicals has been developed by mosquitoes.
- Published
- 2013
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