{"refrec":{"BRefID":295471,"RR":"<b>Laport, M.S.; Bauwens, M.; Collard, M.; George, I.</b> (2018). Phylogeny and antagonistic activities of culturable bacteria associated with the gut microbiota of the sea urchin (<i>Paracentrotus lividus</i>). <i>Curr. Microbiol. 75(3)</i>: 359-367. <a href=\"https://dx.doi.org/10.1007/s00284-017-1389-5\" target=\"_blank\">https://dx.doi.org/10.1007/s00284-017-1389-5</a>","BEntID":287558,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Curr. Microbiol. 75(3)</i>: 359-367. <a href=\"https://dx.doi.org/10.1007/s00284-017-1389-5\" target=\"_blank\">https://dx.doi.org/10.1007/s00284-017-1389-5</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Laport, M.S.; Bauwens, M.; Collard, M.; George, I.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Laport, M.S. <i>et al.</i>","Englishabstract":"In this study, we have investigated the phylogeny and the antagonistic interactions of culturable bacteria isolated from the sea urchin <i>Paracentrotus lividus</i> collected from Aber and Morgat, both located in Crozon peninsula, France. Bacteria were isolated from the gastrointestinal tracts of ten specimens by using conventional culture-dependent method and then investigated by using phylogenetic analysis based on 16S rRNA gene sequence comparisons. Assays for antagonistic interactions among the bacterial strains were performed; bacteria (including at least one strain representative of each OTU identified) were screened for antimicrobial substance production. So, 367 bacterial strains were isolated on marine-agar. On the basis of morphological characteristics, 180 strains were sequenced and 94 OTUs were classified. The dominant phyla were Proteobacteria, Firmicutes and Actinobacteria, with a high abundance of the strains belonging to the genus <i>Psychrobacter</i>. From the antagonistic interactions assays, it could be determined that 22.7% strains were positive for at least one antagonism interaction, 18.3% of them isolated from the sea urchins collected in Morgat. We hypothesize that the bacteria isolated in this study may represent the transitory microbiota of the gastrointestinal tract of <i>P. lividus</i>, and that this microbiota may be related to the diet of this marine invertebrate. Furthermore, our results suggest that chemical antagonism could play a significant role in shaping the bacterial communities within gastrointestinal tract of the sea urchins. In addition, most isolated bacteria may have promising biotechnology applications.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Phylogeny and antagonistic activities of culturable bacteria associated with the gut microbiota of the sea urchin (<i>Paracentrotus lividus</i>)","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-18 01:32:03.535630","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Antimicrobials; Biotechnology; Culture-dependent approach; Gutmicrobiome; Paracentrotus lividus; Psychrobacter","OtherDescriptors":null,"Notes":null,"AnaPub":2018,"MonPub":null,"DateUpdate":"2019-07-09","DateCreate":"2018-05-15","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000424877100017","VABBcode":null,"OpenAcc":0,"DOI":"10.1007/s00284-017-1389-5"},"refs":null,"anarec":{"AnaID":295471,"PubliDate":2018,"Pagination":"359-367","XtraPublOfAnaID":null,"ISBN":null,"Volume":"75","Issue":"3","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":45291,"SerRR":"Current Microbiology. Springer-Verlag: New York.  ISSN 0343-8651; e-ISSN 1432-0991","StandardTitleSer":"Current Microbiology","ISSN":"0343-8651","AbbrevSer":"Curr. 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