A. Muniz, C. Jaillard, D. Lemaitre, B. Boccard, and F. , Erwinia carotovora Evf antagonizes the elimination of bacteria in the gut of Drosophila larvae, Cellular Microbiology, vol.326, issue.1, pp.106-119, 2007.
DOI : 10.1016/j.immuni.2006.02.012

URL : https://hal.archives-ouvertes.fr/hal-00167432

G. A. Agrios, Plant pathology, 1997.

P. Babitzke and T. Romeo, CsrB sRNA family: sequestration of RNA-binding regulatory proteins, Current Opinion in Microbiology, vol.10, issue.2, pp.156-163, 2007.
DOI : 10.1016/j.mib.2007.03.007

A. Basset, R. Khush, A. Braun, L. Gardan, F. Boccard et al., The phytopathogenic bacteria Erwinia carotovora infects Drosophila and activates an immune response, Proceedings of the National Academy of Sciences, vol.97, issue.7, pp.97-3376, 2000.
DOI : 10.1073/pnas.97.7.3376

C. Blumer, S. Heeb, G. Pessi, and D. Haas, Global GacA-steered control of cyanide and exoprotease production in Pseudomonas fluorescens involves specific ribosome binding sites, Proceedings of the National Academy of Sciences, vol.96, issue.24, pp.14073-14078, 1999.
DOI : 10.1073/pnas.96.24.14073

H. G. Boman, I. Nilsson, and B. Rasmuson, Inducible Antibacterial Defence System in Drosophila, Nature, vol.232, issue.5352, pp.232-267, 1972.
DOI : 10.1038/237232a0

S. M. Butler, R. A. Festa, M. J. Pearce, and K. H. Darwin, Self-compartmentalized bacterial proteases and pathogenesis, Molecular Microbiology, vol.181, issue.3, pp.553-562, 2006.
DOI : 10.1046/j.1365-2958.2002.03065.x

A. Casadevall and L. Pirofski, Host-Pathogen Interactions: Basic Concepts of Microbial Commensalism, Colonization, Infection, and Disease, Infection and Immunity, vol.68, issue.12, pp.6511-6519, 2000.
DOI : 10.1128/IAI.68.12.6511-6518.2000

L. Dethlefsen, P. B. Eckburg, E. M. Bik, and D. A. Relman, Assembly of the human intestinal microbiota, Trends in Ecology & Evolution, vol.21, issue.9, pp.517-540, 2006.
DOI : 10.1016/j.tree.2006.06.013

T. Dong and H. Schellhorn, Role of RpoS in Virulence of Pathogens, Infection and Immunity, vol.78, issue.3, pp.887-97, 2010.
DOI : 10.1128/IAI.00882-09

A. K. Dubey, C. S. Baker, K. Suzuki, A. D. Jones, P. Pandit et al., CsrA Regulates Translation of the Escherichia coli Carbon Starvation Gene, cstA, by Blocking Ribosome Access to the cstA Transcript, Journal of Bacteriology, vol.185, issue.15, pp.4450-4460, 2003.
DOI : 10.1128/JB.185.15.4450-4460.2003

C. Dubuis and D. Haas, Cross-Species GacA-Controlled Induction of Antibiosis in Pseudomonads, Applied and Environmental Microbiology, vol.73, issue.2, pp.650-654, 2007.
DOI : 10.1128/AEM.01681-06

S. Falkow, Opinion: Molecular Koch's postulates applied to bacterial pathogenicity ??? a personal recollection 15 years later, Nature Reviews Microbiology, vol.63, issue.1, pp.67-72, 2004.
DOI : 10.1016/S0168-9525(02)00005-7

S. R. Giddens, A. Tormo, and H. K. Mahanty, Expression of the Antifeeding Gene anfA1 in Serratia entomophila Requires RpoS, Applied and Environmental Microbiology, vol.66, issue.4, 2000.
DOI : 10.1128/AEM.66.4.1711-1714.2000

W. J. Gooderham and R. E. Hancock, Regulation of virulence and antibiotic resistance by two-component regulatory systems in Pseudomonas aeruginosa, 2009.

R. I. Goodier and B. M. Ahmer, SirA Orthologs Affect both Motility and Virulence, Journal of Bacteriology, vol.183, issue.7, pp.2249-2258, 2001.
DOI : 10.1128/JB.183.7.2249-2258.2001

URL : http://www.ncbi.nlm.nih.gov/pmc/articles/PMC95131

D. Haas, C. Blumer, and C. Keel, Biocontrol ability do fluorescent pseudomonads genetically dissected; Importance of positive feedback regulation, 2000.

S. Heeb, C. Blumer, and D. Haas, Regulatory RNA as Mediator in GacA/RsmA-Dependent Global Control of Exoproduct Formation in Pseudomonas fluorescens CHA0, Journal of Bacteriology, vol.184, issue.4, pp.1046-1056, 2002.
DOI : 10.1128/jb.184.4.1046-1056.2002

S. Heeb, C. Valverde, C. Gigot-bonnefoy, and D. Haas, CHA0, FEMS Microbiology Letters, vol.243, issue.1, pp.251-258, 2005.
DOI : 10.1016/j.femsle.2004.12.008

S. Heeb, S. A. Kuehne, M. Bycroft, S. Crivii, M. D. Allen et al., Functional Analysis of the Post-transcriptional Regulator RsmA Reveals a Novel RNA-binding Site, Journal of Molecular Biology, vol.355, issue.5, pp.1026-1036, 2006.
DOI : 10.1016/j.jmb.2005.11.045

R. Hengge-aronis, Signal Transduction and Regulatory Mechanisms Involved in Control of the ??S (RpoS) Subunit of RNA Polymerase, Microbiology and Molecular Biology Reviews, vol.66, issue.3, pp.373-95, 2002.
DOI : 10.1128/MMBR.66.3.373-395.2002

E. M. Hrabak and D. K. Willis, The lemA gene required for pathogenicity of Pseudomonas syringae pv. syringae on bean is a member of a family of two-component regulators., Journal of Bacteriology, vol.174, issue.9, pp.3011-3020, 1992.
DOI : 10.1128/jb.174.9.3011-3020.1992

G. Jander, L. G. Rahme, and F. M. Ausubel, Positive Correlation between Virulence of Pseudomonas aeruginosa Mutants in Mice and Insects, Journal of Bacteriology, vol.182, issue.13, pp.3843-3845, 2000.
DOI : 10.1128/JB.182.13.3843-3845.2000

C. Johnston, D. A. Pegues, C. J. Hueck, A. Lee, and S. I. Miller, Transcriptional activation of Salmonella typhimurium invasion genes by a member of the phosphorylated response-regulator superfamily, Molecular Microbiology, vol.22, issue.4, pp.715-727, 1996.
DOI : 10.1046/j.1365-2958.1996.d01-1719.x

V. R. Kaberdin and U. Bläsi, Translation initiation and the fate of bacterial mRNAs, FEMS Microbiology Reviews, vol.30, issue.6, pp.967-979, 2006.
DOI : 10.1111/j.1574-6976.2006.00043.x

E. Kay, C. Dubuis, and D. Haas, Three small RNAs jointly ensure secondary metabolism and biocontrol in Pseudomonas fluorescens CHA0, Proceedings of the National Academy of Sciences, vol.102, issue.47, pp.17136-17141, 2005.
DOI : 10.1073/pnas.0505673102

K. Lapouge, E. Sineva, M. Lindell, K. Starke, C. S. Baker et al., Mechanism of hcnA mRNA recognition in the Gac/Rsm signal transduction pathway of Pseudomonas fluorescens, Molecular Microbiology, vol.56, issue.2, pp.341-356, 2007.
DOI : 10.1093/nar/gkg595

K. Lapouge, M. Schubert, F. H. Allain, and D. Haas, Gac/Rsm signal transduction pathway of ??-proteobacteria: from RNA recognition to regulation of social behaviour, Molecular Microbiology, vol.16, issue.2, pp.241-253, 2008.
DOI : 10.1111/j.1365-2958.2007.06042.x

J. Laville, C. Voisard, C. Keel, M. Maurhofer, G. Défago et al., Global control in Pseudomonas fluorescens mediating antibiotic synthesis and suppression of black root rot of tobacco., Proceedings of the National Academy of Sciences, vol.89, issue.5, pp.1562-1566, 1992.
DOI : 10.1073/pnas.89.5.1562

F. Leulier, C. Parquet, S. Pili-floury, J. H. Ryu, M. Caroff et al., The Drosophila immune system detects bacteria through specific peptidoglycan recognition, Nature Immunology, vol.4, issue.5, pp.478-84, 2003.
DOI : 10.1038/ni922

R. L. Lucas, C. P. Lostroh, C. C. Dirusso, M. P. Spector, B. L. Wanner et al., Multiple Factors Independently Regulate hilA and Invasion Gene Expression in Salmonella enterica Serovar Typhimurium, Journal of Bacteriology, vol.182, issue.7, pp.1872-1882, 2000.
DOI : 10.1128/JB.182.7.1872-1882.2000

J. Mercante, K. Suzuki, X. Cheng, P. Babitzke, and T. Romeo, Comprehensive Alanine-scanning Mutagenesis of Escherichia coli CsrA Defines Two Subdomains of Critical Functional Importance, Journal of Biological Chemistry, vol.281, issue.42, pp.31832-31842, 2006.
DOI : 10.1074/jbc.M606057200

J. Miller, Experiments in Molecular Genetics, pp.352-355, 1972.

S. Mukhopadhyay, J. P. Audia, R. N. Roy, and H. E. Schellhorn, Transcriptional induction of the conserved alternative sigma factor RpoS in Escherichia coli is dependent on BarA, a probable two-component regulator, Molecular Microbiology, vol.180, issue.2, pp.371-381, 2000.
DOI : 10.1073/pnas.94.21.11210

D. M. Mutch, R. Simmering, D. Donnicola, G. Fotopoulos, J. A. Holzwarth et al., Impact of commensal microbiota on murine gastrointestinal tract gene ontologies, Physiological Genomics, vol.19, issue.1, pp.22-31, 2004.
DOI : 10.1152/physiolgenomics.00105.2004

A. Natsch, C. Keel, H. A. Pfirter, D. Haas, and G. Défago, Contribution of the global regulator gene gacA to persistence and dissemination of Pseudomonas fluorescens biocontrol strain CHA0 introduced into soil microcosms, Appl.Enviro Microbiol, vol.60, pp.2553-2560, 1994.

T. Mizuno, Transcriptome analysis of all two-component regulatory system mutants of Escherichia coli K-12, Mol Microbiol, vol.46, pp.281-291, 2002.

A. K. Pernestig, O. Melefors, and D. Georgellis, Identification of UvrY as the Cognate Response Regulator for the BarA Sensor Kinase in Escherichia coli, Journal of Biological Chemistry, vol.276, issue.1, pp.225-248, 2001.
DOI : 10.1074/jbc.M001550200

G. Pessi and D. Haas, Dual control of hydrogen cyanide biosynthesis by the global activator GacA in Pseudomonas aeruginosa PAO1, pp.73-78, 2001.

L. Pirofski and A. Casadevall, The Damage-Response Framework of Microbial Pathogenesis and Infectious Diseases, Adv Exp Med Biol, vol.635, pp.135-181, 2008.
DOI : 10.1007/978-0-387-09550-9_11

F. M. Ausubel, Use of model plant hosts to identify Pseudomonas aeruginosa virulence factors, Proc Natl Acad Sci, vol.94, pp.13245-13250, 1997.

C. Reimmann, M. Beyeler, A. Latifi, H. Winteler, M. Foglino et al., The global activator GacA of Pseudomonas aeruginosa PAO positively controls the production of the autoinducer N-butyryl-homoserine lactone and the formation of the virulence factors pyocyanin, cyanide, and lipase, Molecular Microbiology, vol.24, issue.2, pp.309-319, 1997.
DOI : 10.1046/j.1365-2958.1997.3291701.x

J. J. Rich, T. G. Kinscherf, T. Kitten, and D. K. Willis, Genetic evidence that the gacA gene encodes the cognate response regulator for the lemA sensor in Pseudomonas syringae., Journal of Bacteriology, vol.176, issue.24, pp.7468-7475, 1994.
DOI : 10.1128/jb.176.24.7468-7475.1994

M. Schubert, K. Lapouge, O. Duss, F. C. Oberstrass, I. Jelesarov et al., Molecular basis of messenger RNA recognition by the specific bacterial repressing clamp RsmA/CsrA, Nature Structural & Molecular Biology, vol.177, issue.9, pp.807-813, 2007.
DOI : 10.1146/annurev.physchem.51.1.129

S. J. Suh, L. Silo-suh, and D. E. Ohman, Development of tools for the genetic manipulation of Pseudomonas aeruginosa, Journal of Microbiological Methods, vol.58, issue.2, pp.203-212, 2004.
DOI : 10.1016/j.mimet.2004.03.018

. Vallet-gely, B. Lemaitre, and F. Boccard, Bacterial strategies to overcome insect defences, Nature Reviews Microbiology, vol.99, issue.4, 2008.
DOI : 10.1038/nrmicro1870

URL : http://infoscience.epfl.ch/record/151763

C. Valverde, M. Lindell, E. G. Wagner, and D. Haas, A Repeated GGA Motif Is Critical for the Activity and Stability of the Riboregulator RsmY of Pseudomonas fluorescens, Journal of Biological Chemistry, vol.279, issue.24, pp.25066-25074, 2004.
DOI : 10.1074/jbc.M401870200

E. I. Vivas and H. Goodrich-blair, Xenorhabdus nematophilus as a Model for Host-Bacterium Interactions: rpoS Is Necessary for Mutualism with Nematodes, Journal of Bacteriology, vol.183, issue.16, pp.4687-4693, 2001.
DOI : 10.1128/JB.183.16.4687-4693.2001

B. Lemaitre, Drosophila host defense after oral infection by an entomopathogenic Pseudomonas species, Proc Natl Acad Sci, vol.102, pp.11414-11419, 2005.

C. Jubin, A. Lajus, B. Segurens, B. Vacherie, P. Wincker et al., Complete genome sequence of the entomopathogenic and metabolically versatile soil bacterium Pseudomonas entomophila, Nat Biotechnol, vol.24, pp.673-679, 2006.
URL : https://hal.archives-ouvertes.fr/hal-00133119

C. A. Whistler, N. A. Corbell, A. Sarniguet, W. Ream, and J. E. Loper, The twocomponent regulators GacS and GacA influence accumulation of the stationaryphase sigma factor _S and the stress response in Pseudomonas fluorescens Pf-5, J Bacteriol, vol.180, pp.6635-6641, 1998.

M. Whiteley, M. R. Parsek, and E. P. Greenberg, Regulation of Quorum Sensing by RpoS in Pseudomonas aeruginosa, Journal of Bacteriology, vol.182, issue.15, pp.4356-60, 2000.
DOI : 10.1128/JB.182.15.4356-4360.2000

D. K. Willis, J. J. Holmstadt, and T. G. Kinscherf, Genetic Evidence that Loss of Virulence Associated with gacS or gacA Mutations in Pseudomonas syringae B728a Does Not Result from Effects on Alginate Production, Applied and Environmental Microbiology, vol.67, issue.3, pp.1400-1403, 2001.
DOI : 10.1128/AEM.67.3.1400-1403.2001

G. Bellon, J. Berger, T. Weiss, K. Botzenhart, J. R. Yankaskas et al., Effects of reduced mucus oxygen concentration in airway Pseudomonas infections of cystic fibrosis patients, J. Clin. Invest, vol.109, pp.317-325, 2002.