{"refrec":{"BRefID":289418,"RR":"<b>Nakagawa, S.; Saito, H.; Tame, A.; Hirai, M.; Yamaguchi, H.; Sunata, T.; Aida, M.; Muto, H.; Sawayama, S.; Takaki, Y.</b> (2017). Microbiota in the coelomic fluid of two common coastal starfish species and characterization of an abundant <i>Helicobacter</i>-related taxon. <i>NPG Scientific Reports 7(1)</i>: 10. <a href=\"https://dx.doi.org/10.1038/s41598-017-09355-2\" target=\"_blank\">https://dx.doi.org/10.1038/s41598-017-09355-2</a>","BEntID":281455,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>NPG Scientific Reports 7(1)</i>: 10. <a href=\"https://dx.doi.org/10.1038/s41598-017-09355-2\" target=\"_blank\">https://dx.doi.org/10.1038/s41598-017-09355-2</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Nakagawa, S.; Saito, H.; Tame, A.; Hirai, M.; Yamaguchi, H.; Sunata, T.; Aida, M.; Muto, H.; Sawayama, S.; Takaki, Y.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Nakagawa, S. <i>et al.</i>","Englishabstract":"Marine invertebrates associate with diverse microorganisms. Microorganisms even inhabit coelomic fluid (CF), namely, the fluid filling the main body cavity of echinoderms. The CF microbiota potentially impacts host health and disease. Here, we analysed the CF microbiota in two common coastal starfish species, Patiria pectinifera and Asterias amurensis. Although microbial community structures were highly variable among individual starfish, those of P. pectinifera were compositionally similar to those in the surrounding seawater. By contrast, many A. amurensis individuals harboured unique microbes in the CF, which was dominated by the unclassified Thiotrichales or previously unknown Helicobacter-related taxon. In some individuals, the Helicobacter-related taxon was the most abundant genus-level taxon, accounting for up to 97.3% of reads obtained from the CF microbial community. Fluorescence in situ hybridization using a Helicobacter-related-taxon-specific probe suggested that probe-reactive cells in A. amurensis were spiral-shaped, morphologically similar to known Helicobacter species. Electron microscopy revealed that the spiral cells had a prosthecate-like polar appendage that has never been reported in Helicobacter species. Although culture of Helicobacter-related taxon was unsuccessful, this is the first report of the dominance of a Helicobacter-related taxon in invertebrates and non-digestive organs, reshaping our knowledge of the phylogeography of Helicobacter-related taxa.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Microbiota in the coelomic fluid of two common coastal starfish species and characterization of an abundant <i>Helicobacter</i>-related taxon","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-15 01:33:01.223136","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2017,"MonPub":null,"DateUpdate":"2018-02-13","DateCreate":"2017-09-19","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000407980000018","VABBcode":null,"OpenAcc":1,"DOI":"10.1038/s41598-017-09355-2"},"refs":null,"anarec":{"AnaID":289418,"PubliDate":2017,"Pagination":"10","XtraPublOfAnaID":null,"ISBN":null,"Volume":"7","Issue":"1","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":208093,"SerRR":"Scientific Reports (Nature Publishing Group). Nature Publishing Group: London.  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