Bacterial sex in dental plaque

Journal of Oral Microbiology

Ingar Olsen²  Gena D. Tribble¹  Bing-Yan Wang¹  Nils-Erik Fiehn¹ 

[1] University of Oslo

关键词: bacteria;    bacterial sex;    DNA transfer;    dental plaque;   

DOI  :  

来源: Co-Action Publishing

【 摘 要 】

Genesaretransferredbetweenbacteriaindentalplaquebytransduction,conjugation,andtransformation.Membranevesiclescanalsoprovideamechanismforhorizontalgenetransfer.DNAtransferisconsideredbacterialsex,butthetransferisnotparalleltoprocessesthatweassociatewithsexinhigherorganisms.Severalexamplesofbacterialgenetransferintheoralcavityaregiveninthisreview.Howfrequentlythisoccursindentalplaqueisnotclear,butevidencesuggeststhatitaffectsanumberofthemajorgenerapresent.Ithasbeenestimatedthatnewsequencesingenomesestablishedthroughhorizontalgenetransfercanconstituteupto30%ofbacterialgenomes.Genetransfercanbebothinter-andintrageneric,anditcanalsoaffecttransientorganisms.ThetransferredDNAcanbeintegratedorrecombinedintherecipient’schromosomeorremainasanextrachromosomalinheritableelement.Thiscanmakedentalplaqueareservoirforantimicrobialresistancegenes.TheabilitytotransferDNAisimportantforbacteria,makingthembetteradaptedtotheharshenvironmentofthehumanmouth,andpromotingtheirsurvival,virulence,andpathogenicity.Keywords:bacteria;bacterialsex;DNAtransfer;dentalplaque(Published:3June2013)Citation:JournalofOralMicrobiology2013,5:20736-http://dx.doi.org/10.3402/jom.v5i0.20736*TheChiefEditorIngarOlsen,hasnothadanypartinthereviewanddecisionprocessforthispaper.

【 授权许可】

Unknown