Access content directly

Michel Gohar

Open access
Current affiliations
  • 1002254
Researcher identifiers


Research domains


Image document

Plasmid – Chromosome interplay in natural and non-natural hosts: global transcription study of three Bacillus cereus group strains carrying pCER270 plasmid

Alicia Nevers , Markus Kranzler , Stéphane Perchat , M. Gohar , Alexei Sorokin
Research in Microbiology, 2023, 174 (6), pp.104074. ⟨10.1016/j.resmic.2023.104074⟩
Journal articles hal-04300453v1

Insights into the Bacillus anthracis, cereus and thuringiensis world through the BACT conference

V. Broussolle , M. Gohar , L. Slamti , Jean-Nicolas Tournier
Research in Microbiology, 2023, 174 (6), pp. 104095. ⟨10.1016/j.resmic.2023.104095⟩
Journal articles hal-04177303v1
Image document

Massive Integration of Planktonic Cells within a Developing Biofilm

Nay El-Khoury , Imene Bennaceur , Emilie Verplaetse , Stéphane Aymerich , Didier Lereclus
Microorganisms, 2021, 9, pp.1-10. ⟨10.3390/microorganisms9020298⟩
Journal articles hal-03798371v1
Image document

Long inverted repeats around the chromosome replication terminus in the model strain Bacillus thuringiensis serovar israelensis BGSC 4Q7

Alexander Bolotin , Benoit Quinquis , Hugo Roume , Michel Gohar , Didier Lereclus
Microbial Genomics, 2020, 6 (12), ⟨10.1099/mgen.0.000468⟩
Journal articles hal-04190849v1
Image document

Bacillus thuringiensis spores and vegetative bacteria: Infection capacity and role of the virulence regulon PlcR following intrahaemocoel injection of Galleria mellonella

Christophe Buisson , Michel Gohar , Eugénie Huillet , Christina Nielsen-Leroux
Insects, 2019, 10 (5), ⟨10.3390/insects10050129⟩
Journal articles hal-02619796v1
Image document

CalY is a major virulence factor and a biofilm matrix protein

Thomas Candela , Annette Fagerlund , Christophe Buisson , Nathalie Gilois , Anne‐brit Kolstø
Molecular Microbiology, 2019, 111 (6), pp.1416-1429. ⟨10.1111/mmi.14184⟩
Journal articles hal-02620254v2
Image document

Bactériémies à Bacillus cereus en réanimation néonatale à l’AP-HP en 2016

Sandra Fournier , Véronique Faraut-Derouin , Anne Casetta , Pierre Frange , Catherine Doit
Bulletin Epidémiologique Hebdomadaire - BEH, 2018, 25-26, pp.536-540
Journal articles hal-02622376v1

Two distinct pathways lead Bacillus thuringiensis to commit to sporulation in biofilm

Emilie Verplaetse , Leyla Slamti , Michel Gohar , Didier Lereclus
Research in Microbiology, 2017, 168 (4), pp.388-393. ⟨10.1016/j.resmic.2016.03.006⟩
Journal articles hal-01530848v1

Genetic and functional analyses of krs, a locus encoding kurstakin, a lipopeptide produced by Bacillus thuringiensis

Sébastien Gélis-Jeanvoine , Alexis Canette , Michel Gohar , Thibault Caradec , Christelle Lemy
Research in Microbiology, 2017, 168 (4), pp.356-368. ⟨10.1016/j.resmic.2016.06.002⟩
Journal articles hal-01603335v1
Image document

Correction: necrotrophism Is a quorum-sensing-regulated lifestyle in Bacillus thuringiensis

Thomas Dubois , Karoline Faegri , Sébastien Gélis-Jeanvoine , Stéphane Perchat , Christelle Lemy
PLoS Pathogens, 2016, 12 (11), pp.e1006049. ⟨10.1371/journal.ppat.1006049⟩
Journal articles hal-01604527v1
Image document

Spatio-temporal evolution of sporulation in Bacillus thuringiensis biofilm

Nay El Khoury , Racha Majed , Stephane Perchat , Mireille Kallassy , Didier Lereclus
Frontiers in Microbiology, 2016, 7, ⟨10.3389/fmicb.2016.01222⟩
Journal articles hal-02633243v1
Image document

How Quorum Sensing Connects Sporulation to Necrotrophism in Bacillus thuringiensis.

Stéphane Perchat , Antoine Talagas , Sandrine Poncet , Noureddine Lazar , Inès Li de La Sierra-Gallay
PLoS Pathogens, 2016, 12 (8), pp.e1005779. ⟨10.1371/journal.ppat.1005779⟩
Journal articles hal-01355952v1
Image document

Bacillus cereus Biofilms—same, only different

Racha Majed , Christine Faille , Mireille Kallassy Awad , Michel M. Gohar
Frontiers in Microbiology, 2016, 7, ⟨10.3389/fmicb.2016.01054⟩
Journal articles hal-02634447v1

Correction: How Quorum Sensing Connects Sporulation to Necrotrophism in Bacillus thuringiensis.

Stéphane Perchat , Antoine Talagas , Sandrine Poncet , Noureddine Lazar , Inès Li de La Sierra-Gallay
PLoS Pathogens, 2016, 12 (10), pp.e1006009. ⟨10.1371/journal.ppat.1006009⟩
Journal articles hal-01451568v1
Image document

Food-bacteria interplay : pathometabolism of emetic Bacillus cereus

Monika Ehling-Schulz , Elrike Frenzel , Michel M. Gohar
Frontiers in Microbiology, 2015, 6, ⟨10.3389/fmicb.2015.00704⟩
Journal articles hal-02631252v1

Peptides extracted from Artemisia herba alba have antimicrobial activity against foodborne pathogenic gram-positive bacteria

Sinda Fedhila , Wafa Ben Lazhar , Taoufik Jeridi , Vincent Sanchis Borja , Michel Gohar
African journal of traditional, complementary, and alternative medicines : AJTCAM / African Networks on Ethnomedicines, 2015, 12 (1), pp.68-75. ⟨10.4314/ajtcam.v12i1.10⟩
Journal articles hal-01536527v1
Image document

Cell differentiation in a Bacillus thuringiensis population during planktonic growth, biofilm formation, and host infection

Emilie Verplaetse , Leyla Slamti , Michel M. Gohar , Didier D. Lereclus
mBio, 2015, 6 (3), pp.1-10. ⟨10.1128/mBio.00138-15⟩
Journal articles hal-02640468v1
Image document

SinR Controls Enterotoxin Expression in Bacillus thuringiensis Biofilms

Annette Fagerlund , Thomas Dubois , Ole-Andreas Okstad , Emilie Verplaetse , Nathalie Gilois
PLoS ONE, 2014, 9 (1), ⟨10.1371/journal.pone.0087532⟩
Journal articles hal-01204442v1

Pathogenic Potential of Bacillus cereus Strains as Revealed by Phenotypic Analysis

Rita R. Kamar , Michel M. Gohar , Isabelle I. Jehanno , Agnes A. Rejasse , Mireille M. Kallassy
Journal of Clinical Microbiology, 2013, 51 (1), pp.320 - 323. ⟨10.1128/JCM.02848-12⟩
Journal articles hal-01001609v1
Image document

Bacterial swimmers that infiltrate and take over the biofilm matrix

Ali A. Houry , Michel M. Gohar , Julien Deschamps , Ekaterina E. Tischenko , Stephane S. Aymerich
Proceedings of the National Academy of Sciences of the United States of America, 2012, 109 (32), pp.13088 - 13093. ⟨10.1073/pnas.1200791109⟩
Journal articles hal-01004132v1
Image document

Necrotrophism is a quorum-sensing-regulated lifestyle in [i]Bacillus thuringiensis[/i]

Thomas Dubois , Karoline Faegri , Stephane Perchat , Christelle Lemy , Christophe Buisson
PLoS Pathogens, 2012, 8 (4), ⟨10.1371/journal.ppat.1002629⟩
Journal articles hal-01190788v1
Image document

Environmental and biofilm-dependent changes in a Bacillus cereus secondary cell wall polysaccharide

T. Candela , Emmanuel Maes , Estelle Garénaux , Yoann Rombouts , Frédéric Krzewinski
Journal of Biological Chemistry, 2011, 286 (36), pp.31250-31262. ⟨10.1074/jbc.M111.249821⟩
Journal articles hal-00641810v1

Haemolysin II is a Bacillus cereus virulence factor that induces apoptosis of macrophages

Seavly S. Tran , Elisabeth E. Guillemet , Maud M. Ngo-Camus , Cyril C. Clybouw , Andrea A. Puhar
Cellular Microbiology, 2011, 13 (1), pp.92 - 108. ⟨10.1111/j.1462-5822.2010.01522.x⟩
Journal articles hal-01000992v1

A cell-cell communication system regulates protease production during sporulation in bacteria of the Bacillus cereus group

Stephane Perchat , Thomas Dubois , Samira Zouhir , Myriam Gominet , Sandrine Poncet-Mouturat
Molecular Microbiology, 2011, 82 (3), pp.619 - 633. ⟨10.1111/j.1365-2958.2011.07839.x⟩
Journal articles hal-01019485v1

In vitro digestion of Cry1Ab proteins and analysis of the impact on their immunoreactivity

Valeria Guimaraes , Marie-Francoise Drumare , Didier Lereclus , Michel Gohar , Patricia Lamourette
Journal of Agricultural and Food Chemistry, 2010, 58 (5), pp.3222-3231. ⟨10.1021/jf903189j⟩
Journal articles hal-02660053v1

Involvement of motility and flagella in Bacillus cereus biofilm formation

Ali Houry , Romain Briandet , Stephane Aymerich , Michel Gohar
Microbiology, 2010, 156 (4), pp.1009-1018. ⟨10.1099/mic.0.034827-0⟩
Journal articles hal-01605000v1

CwpFM (EntFM) Is a Bacillus cereus Potential Cell Wall Peptidase Implicated in Adhesion, Biofilm Formation, and Virulence

Seav-Ly Tran , Elisabeth E. Guillemet , Michel Gohar , Didier Lereclus , N. Ramarao
Journal of Bacteriology, 2010, 192 (10), pp.2638-2642. ⟨10.1128/JB.01315-09⟩
Journal articles hal-02660641v1

Biofilm formation and cell surface properties among pathogenic and nonpathogenic strains of the Bacillus cereus group.

Sandrine Auger , Nalini Ramarao , Christine Faille , Agnès Fouet , Stéphane Aymerich
Applied and Environmental Microbiology, 2009, 75 (20), pp.6616-8. ⟨10.1128/aem.00155-09⟩
Journal articles pasteur-00512106v1
Image document

IlsA, a unique surface protein of Bacillus cereus required for iron acquisition from heme, hemoglobin and ferritin

Nadine Daou , Christophe C. Buisson , Michel M. Gohar , Jasmina Vidic , Hélène Bierne
PLoS Pathogens, 2009, 5 (11), pp.e1000675. ⟨10.1371/journal.ppat.1000675⟩
Journal articles hal-02659494v1
Image document

Molecular basis for group-specific activation of the virulence regulator PlcR by PapR heptapeptides.

L. Bouillaut , S. Perchat , S. Arold , S. Zorrilla , L. Slamti
Nucleic Acids Research, 2008, 36 (11), pp.3791-801. ⟨10.1093/nar/gkn149⟩
Journal articles hal-00315584v1
Image document

The PlcR virulence regulon of Bacillus cereus.

Michel M. Gohar , Karoline Faegri , Stéphane Perchat , Solveig Ravnum , Ole Andreas Økstad
PLoS ONE, 2008, 3 (7), pp.e2793. ⟨10.1371/journal.pone.0002793⟩
Journal articles hal-00315585v1
Image document

The YvfTU Two-component System is involved in plcR expression in Bacillus cereus

Julien J. Brillard , Kim Susanna , Caroline Michaud , Claire Dargaignaratz , Michel M. Gohar
BMC Microbiology, 2008, 8, pp.183. ⟨10.1186/1471-2180-8-183⟩
Journal articles hal-02665752v1

Growth-related variations in the Bacillus cereus secretome.

Nathalie Gilois , Nalini Ramarao , Laurent Bouillaut , Stéphane Perchat , Stéphane Aymerich
Proteomics, 2007, 7 (10), pp.1719-28. ⟨10.1002/pmic.200600502⟩
Journal articles hal-00164197v1

Ac2-DPD, the bis-(O)-acetylated derivative of 4,5-dihydroxy-2,3-pentanedione (DPD) is a convenient stable precursor of bacterial quorum sensing autoinducer AI-2.

Marine Frezza , Laurent Soulère , Damien Balestrino , Michel Gohar , Christian Deshayes
Bioorganic and Medicinal Chemistry Letters, 2007, 17 (5), pp.1428-31. ⟨10.1016/j.bmcl.2006.11.076⟩
Journal articles hal-00164190v1

Autoinducer 2 affects biofilm formation by Bacillus cereus

Sandrine Auger , Evelyne Krin , Stephane S. Aymerich , Michel M. Gohar
Applied and Environmental Microbiology, 2006, 72 (1), pp.937-941. ⟨10.1128/AEM.72.1.937-941.2006⟩
Journal articles hal-02663988v1

Autoinducer 2 affects biofilm formation by Bacillus cereus

Sandrine Auger , E. Krin , Stéphane Aymerich , M. Gohar
Applied and Environmental Microbiology, 2006, 72, pp.937-941
Journal articles hal-00088709v1

FlhA influences Bacillus thuringiensis PlcR-regulated gene transcription, protein production, and virulence.

Laurent Bouillaut , Nalini Ramarao , Christophe C. Buisson , Nathalie Gilois , Michel M. Gohar
Applied and Environmental Microbiology, 2005, 71 (12), pp.8903-8910. ⟨10.1128/AEM.71.12.8903-8910.2005⟩
Journal articles hal-02682647v1

A comparative study of Bacillus cereus, Bacillus thuringiensis and Bacillus anthracis extracellular proteomes.

Michel M. Gohar , Nathalie Gilois , Christelle Garreau , Vincent V. Sanchis Borja , Didier D. Lereclus
Proteomics, 2005, 14, pp.3696-3711. ⟨10.1002/pmic.200401225⟩
Journal articles hal-02683014v1

Bacillus cereus produces several nonproteinaceous insecticidal exotoxins.

Stephane S. Perchat , Christophe C. Buisson , Josette Chaufaux , Vincent Sanchis , Didier D. Lereclus
Journal of Invertebrate Pathology, 2005, 90 (2), pp.131-3. ⟨10.1016/j.jip.2005.08.002⟩
Journal articles hal-02682344v1

Distinct mutations in PlcR explain why some strains of the Bacillus cereus group are nonhemolytic.

Leyla Slamti , Stephane S. Perchat , Myriam Gominet , Gislayne Vilas-Bôas , Agnès Fouet
Journal of Bacteriology, 2004, 186 (11), pp.3531-3538. ⟨10.1128/JB.186.11.3531-3538⟩
Journal articles hal-02677201v1

An extracytoplasmic-function sigma factor is involved in a pathway controlling beta-exotoxin I Production in Bacillus thuringiensis subsp thuringiensis strain 407-1

Sylvain Espinasse , Michel M. Gohar , Didier D. Lereclus , Claudia Sanchis
Journal of Bacteriology, 2004, 186 (10), pp.3108-3116. ⟨10.1128/JB.186.10.3108-3116.2004⟩
Journal articles hal-02673975v1

The Bacillus thuringiensis PlcR-regulated gene inhA2 is necessary, but not sufficient, for virulence

Sinda Fedhila , Michel M. Gohar , Leyla Slamti , P. Nel , Didier D. Lereclus
Journal of Bacteriology, 2003, 185 (9), pp.2820-2825. ⟨10.1128/JB.185.9.2820-2825.2003⟩
Journal articles hal-02677780v1
Image document

Occurrence and linkage between secreted insecticidal toxins in natural isolates of Bacillus thuringiensis

S. Espinasse , Josette Chaufaux , C. Buisson , Stéphane Perchat , Michel M. Gohar
Current Microbiology, 2003, 47, pp.501-507. ⟨10.1007/s00284-003-4097-2⟩
Journal articles hal-02681218v1

Expression de gènes de virulence chez Bacillus cereus, le régulon PlcR

Leyla Slamti , Michel M. Gohar , Didier D. Lereclus
Bulletin - Société Française de Microbiologie, 2003, 18 (2), pp.123-128
Journal articles hal-02681385v1
Image document

Two-dimensional electrophoresis analysis of the extracellular proteome of Bacillus cereus reveals the importance of the PlcR regulon

Michel Gohar , Ole Andreas Økstad , Nathalie Gilois , Vincent Sanchis , Anne-Brit Kolsto
Journal articles hal-04182449v1

Correspondence of High Levels of Beta-Exotoxin I and the Presence of cry1B in Bacillus thuringiensis

Sylvain Espinasse , Michel Gohar , Josette Chaufaux , Christophe Buisson , Stéphane Perchat
Applied and Environmental Microbiology, 2002, 68 (9), pp 4182 - 4186. ⟨10.1128/aem.68.9.4182-4186.2002⟩
Journal articles hal-04182427v1

An ABC Transporter from Bacillus thuringiensis is Essential for β-Exotoxin I Production

Sylvain Espinasse , Michel Gohar , Didier Lereclus , Vincent Sanchis
Journal of Bacteriology, 2002, 184 (21), pp.5848 - 5854. ⟨10.1128/jb.184.21.5848-5854.2002⟩
Journal articles hal-04182436v1

Sample Preparation for β-Exotoxin Determination in Bacillus thuringiensis Cultures by Reversed-Phase High-Performance Liquid Chromatography

Michel Gohar , Stephane Perchat
Analytical Biochemistry, 2001, 298 (1), pp.112-117. ⟨10.1006/abio.2001.5373⟩
Journal articles hal-02675949v1

Development and Field Performance of a Broad-Spectrum Nonviable Asporogenic Recombinant Strain of Bacillus thuringiensis with Greater Potency and UV Resistance

Vincent Sanchis , Michel Gohar , Josette Chaufaux , Olivia Arantes , Alain Meier
Applied and Environmental Microbiology, 1999, 65 (9), pp.4032-4039. ⟨10.1128/AEM.65.9.4032-4039.1999⟩
Journal articles hal-04182397v1

Ultradian variations in sensitivity of rat aorta rings to noradrenaline

Michel Gohar , Pascal Daleau , Jeffrey Atkinson , Yves-Michel Gargouil
European Journal of Pharmacology, 1992, 229 (1), pp. 69-73. ⟨10.1016/0014-2999(92)90287-e⟩
Journal articles hal-04182355v1

Rythme nycthéméral de la synthèse protéique ovarienne chez le crustacé oniscoïde Porcellio dilatatus Brandt et rôle du protocérébron

Michel Gohar , Catherine Souty Grosset , P. Juchault
Canadian Journal of Zoology, 1985, 63 (4), pp.799-803. ⟨10.1139/z85-117⟩
Journal articles hal-02725144v1

Demonstration of an inhibition of vitellogenin synthesis by a neurohumoral factor (VIH) in a crustacean isopoda, Porcellio dilatatus Brandt

Michel Gohar , Catherine Souty-Grosset , P. Juchault , Gilbert Martin
Comptes rendus de l’Académie des sciences. Série III, Sciences de la vie, 1984, 299 (19), pp.785-789
Journal articles hal-02721352v1
Image document

Action temporelle d'ecdystéroïdes sur la synthèse protéique ovarienne in vitro chez le Crustacé isopode terrestre Porcellio dilatatus (Brandt)

M. Gohar , Catherine Souty
Reproduction Nutrition Développement, 1984, 24 (2), pp.137-145
Journal articles hal-00898129v1
Image document

Diurnal rhythms in the synthesis and release of haemolymph proteins in the crustacean Isopoda, Porcellio dilatatus (Brandt), with special reference to vitellogenin

M. Gohar , Catherine Souty , J. L. Picaud
Reproduction Nutrition Développement, 1983, 23 (1), pp.93-100
Journal articles hal-00898031v1

Demonstration in vitro for a synthesis and release of vitellogenin by the fat-body in the male of a crustacean isopoda, Porcellio dilatatus, Brandt.

Michel Gohar , Catherine Souty
Comptes-Rendus-de-l'Academie-des-Sciences, 1983, 297 (3), pp.145
Journal articles hal-04182304v1

Le plasmide pCER270 des souches émétiques de Bacillus cereus régule le processus de sporulation et les propriétés des spores

Stéphane Perchat , Alicia Nevers , Markus Kransler , Didier Lereclus , Monika Ehling-Schulz
Bactéries sporulantes pathogènes ou d'intérêt technologique, Nov 2023, PARIS, France
Conference papers hal-04286820v1

Production of crystal-stored proteins using Bacillus thuringiensis molecular tools

Auriane Monestier , Leyla Slamti , Didier Lereclus , Michel Gohar
11th Conference on Recombinant Protein Production, Oct 2023, Girona, Spain
Conference papers hal-04282573v1

Transcriptional impact of pCER270 megaplasmid transfer in various hosts within the Bacillus cereus group

Alicia Nevers , Stephane Perchat , Markus Kranzler , Michel Gohar , Alexei Sorokin
Bacillus ACT, Apr 2022, PARIS, France
Conference papers hal-04286951v1
Image document

An exopolysaccharide tale

M. Gohar
Bacillus anthracis cereus thuringiensis 10th international conference, Apr 2022, Paris, France
Conference papers hal-04300720v1

Bip, a protein required for the integration of planktonic bacteria inside a biofilm

Nay El-Khoury , Imene Bennaceur , Racha Majed , Mireille Kallassy Awad , M. Gohar
International Congress on Invertebrate Pathology and Microbial Control, Jul 2019, Valence (ES), Spain
Conference papers hal-04321470v1

Regulation of biofilm formation in Bacillus cereus

T. Dubois , A. Fagerlund , O.A. Økstad , I. Bennaceur , Aurélie Baliarda
6th Conference on Functional Genomics of Gram-positive Microorganisms and 16th International Conference on Bacilli Montecatini Terme (Italia), Jun 2011, Bacilli Montecatini France
Conference papers hal-01561789v1

Genes involved in planktonic cells recruitment by a Bacillus cereus biofilm

I. Bennaceur , Aurélie Baliarda , Cao M. , S. Aymerich , M. Gohar
The International Conference onBacillus anthracis, B. cereus and B. thuringiensis, Aug 2011, Bruges Belgium
Conference papers hal-01561774v1
Image document

Quorum sensing in Bacillus cereus in relation with cysteine metabolism and oxidative stress response.

Eugénie Huillet , Michel Gohar
Stress and Environmental Regulation of Gene Expression and Adaptation in Bacteria, 1, Wiley, pp.1242 - 1251, 2016, 978-1-119-00489-9. ⟨10.1002/9781119004813.ch120⟩
Book sections hal-04296777v1
Image document

Biofilms et pathogénie

M. Gohar
Master. UE NSS Aliments Microbiens et Sécurité Sanitaire M1-Biologie Santé UPSaclay, UVSQ, France. 2023
Lectures hal-04329250v1
Image document

Biofilms et pathogénie

M. Gohar
Doctoral. UE NSS Aliments Microbiens et Sécurité Sanitaire M1-Biologie Santé UPSaclay, UVSQ, France. 2022
Lectures hal-04331497v1
Image document

UE NSS Aliments Microbiens et Sécurité Sanitaire M1-Biologie Santé UPSaclay

M. Gohar
Doctorat. UVSQ, France. 2021
Lectures hal-04331554v1