Bacillus cereus cell response upon exposure to acid environment: toward the identification of potential biomarkers. - Archive ouverte HAL
Article Dans Une Revue Frontiers in Microbiology Année : 2013

Bacillus cereus cell response upon exposure to acid environment: toward the identification of potential biomarkers.

Résumé

Microorganismsareabletoadapttodifferentenvironmentsandevolverapidly,allowingthemtocopewiththeirnewenvironments.Suchadaptiveresponseandassociatedprotectionstowardotherlethalstresses,isacrucialsurvivalstrategyforawidespectrumofmicroorganisms,includingfoodspoilagebacteria,pathogens,andorganismsusedinfunctionalfoodapplications.Thegrowingdemandforminimalprocessedfoodyieldstoanincreasinguseofcombinationofhurdlesormildpreservationfactorsinthefoodindustry.AcommonlyusedhurdleislowpHwhichallowsthedecreaseinbacterialgrowthratebutalsotheinactivationofpathogensorspoilagemicroorganisms.Bacilluscereusisawell-knownfood bornepathogenleadingtoeconomicalandsafetyissuesinfoodindustry.Becausesurvivalmechanismsimplementedwillallowbacteriatocopewithenvironmentalchanges,itisimportanttoprovideunderstandingofB.cereusstressresponse.ThusthisreviewdealswiththeadaptivetraitsofB.cereuscellsfacingtoacidstressconditions.TheacidstressresponseofB.cereuscouldbedividedintofourgroups(i)generalstressresponse(ii)pHhomeostasis,(iii)metabolicmodificationsandalkaliproductionand(iv)secondaryoxidativestressresponse.ThiscurrentknowledgemaybeusefultounderstandhowB.cereuscellsmaycopetoacidenvironmentsuchasencounteredinfoodproductsandthustofindsomemolecularbiomarkersofthebacterialbehavior.Thesebiomarkerscouldbefurthermoreusedtodevelopnewmicrobialbehaviorpredictiontoolswhichcanprovideinsightsintounderlyingmolecularphysiologicalstateswhichgovernthebehaviorofmicroorganismsandthusopeningtheavenuetowardthedetectionofstressadaptivebehavio
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Dates et versions

hal-01329455 , version 1 (09-06-2016)

Identifiants

  • HAL Id : hal-01329455 , version 1

Citer

Noémie Desriac, Veronique V. Broussolle, Florence Postollec, Anne Gabrielle Mathot, Danièle Sohier, et al.. Bacillus cereus cell response upon exposure to acid environment: toward the identification of potential biomarkers.. Frontiers in Microbiology, 2013. ⟨hal-01329455⟩
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