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Diversity and function of aerobic culturable bacteria in the intestine of the sea cucumber Holothuria leucospilota

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タイトル: Diversity and function of aerobic culturable bacteria in the intestine of the sea cucumber Holothuria leucospilota
著者: Zhang, Xiaochi / Nakahara, Tomomi / Miyazaki, Masayuki / Nogi, Yuichi / Taniyama, Shigeto / Arakawa, Osamu / Inoue, Tetsushi / Kudo, Toshiaki
発行日: 2013年 1月19日
出版者: 応用微生物学研究奨励会 / The Microbiology Research Foundation
引用: The Journal of General and Applied Microbiology, 58(6), pp.447-456; 2012
抄録: Sea cucumbers play an important role in nutrient cycling of marine ecosystems by consuming sediments and moving sand, thus occupying a similar niche to earthworms in terrestrial ecosystems. However, our understanding of microbial diversity and functions associated with sea cucumbers is meager. Here, we isolated 141 bacterial strains under aerobic conditions using various media from the intestine of Holothuria leucospilota, a common sea cucumber in Japanese warm waters. By partial 16S rRNA gene sequences of the isolates, the isolates were tentatively affiliated with 55 described species. Among them, 23 species were common between 2 individuals of H. leucospilota. High diversity was observed in the genera Bacillus and Vibrio, which are often found in marine sediments, marine animals and other various environments. Most isolates showed various polysaccharide degradation activities and were able to grow under or were tolerant of anaerobic condition. We suggest that these aerobically isolated bacteria can play a role in digestion of detritus in aerobic and/or anaerobic regions of the intestine.
キーワード: aerobic culturable bacteria / diversity / function / Holothuria leucospilota / 16S rRNA gene / sea cucumber
URI: http://hdl.handle.net/10069/30967
ISSN: 00221260
DOI: 10.2323/jgam.58.447
関連リンク : http://hdl.handle.net/10069/31177
権利: © 2012, The Microbiology Research Foundation
資料タイプ: Journal Article
原稿種類: publisher
出現コレクション:080 学術雑誌論文

引用URI : http://hdl.handle.net/10069/30967



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