The Enigmatic Genome of an Obligate Ancient Spiroplasma Symbiont in a Hadal Holothurian
He, Li-Sheng1; Zhang, Pei-Wei1; Huang, Jiao-Mei1; Zhu, Fang-Chao1; Danchin, Antoine2; Wang, Yong1; Danchin, Antoine(Hop La Pitie Salpetriere, Inst Cardiometab & Nutr, Paris, France); Wang, Yong(Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya, Hainan, Peoples R China)
2018
发表期刊APPLIED AND ENVIRONMENTAL MICROBIOLOGY
卷号84期号:1
产权排序第1完成单位 ; 第2完成单位
摘要Protective symbiosis has been reported in many organisms, but the molecular mechanisms of the mutualistic interactions between the symbionts and their hosts are unclear. Here, we sequenced the 424-kbp genome of "Candidatus Spiroplasma holothuricola," which dominated the hindgut microbiome of a sea cucumber, a major scavenger captured in the Mariana Trench (6,140 m depth). Phylogenetic relationships indicated that the dominant bacterium in the hindgut was derived from a basal group of Spiroplasma species. In this organism, the genes responsible for the biosynthesis of amino acids, glycolysis, and sugar transporters were lost, strongly suggesting endosymbiosis. The highly decayed genome consists of two chromosomes and harbors genes coding for proteolysis, microbial toxin, restrictionmethylation systems, and clustered regularly interspaced short palindromic repeats (CRISPRs), composed of three cas genes and 76 CRISPR spacers. The holothurian host is probably protected against invading viruses from sediments by the CRISPRs/Cas and restriction systems of the endosymbiotic spiroplasma. The protective endosymbiosis indicates the important ecological role of the ancient Spiroplasma symbiont in the maintenance of hadal ecosystems.
文章类型Article
关键词Symbiosis Hadal Crispr Genome Reduction Spiroplasma
WOS标题词Science & Technology ; Life Sciences & Biomedicine
DOI10.1128/AEM.01965-17
URL查看原文
收录类别SCI
语种英语
关键词[WOS]PSEUDOMONAS-AERUGINOSA ; MODIFICATION SYSTEMS ; INSECT ENDOSYMBIONT ; GUT MICROBIOTA ; SEQUENCE ; BACTERIA ; METAGENOMES ; WOLBACHIA ; EVOLUTION ; ARGININE
WOS类目Biotechnology & Applied Microbiology ; Microbiology
WOS记录号WOS:000418039700026
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被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.idsse.ac.cn/handle/183446/5203
专题深海科学研究部_深海生物学研究室_深海生物蛋白质组学及分子生物学研究组
通讯作者Danchin, Antoine; Wang, Yong; Danchin, Antoine(Hop La Pitie Salpetriere, Inst Cardiometab & Nutr, Paris, France); Wang, Yong(Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya, Hainan, Peoples R China)
作者单位1.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya, Hainan, Peoples R China
2.Hop La Pitie Salpetriere, Inst Cardiometab & Nutr, Paris, France
第一作者单位中国科学院深海科学与工程研究所
通讯作者单位中国科学院深海科学与工程研究所
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He, Li-Sheng,Zhang, Pei-Wei,Huang, Jiao-Mei,et al. The Enigmatic Genome of an Obligate Ancient Spiroplasma Symbiont in a Hadal Holothurian[J]. APPLIED AND ENVIRONMENTAL MICROBIOLOGY,2018,84(1).
APA He, Li-Sheng.,Zhang, Pei-Wei.,Huang, Jiao-Mei.,Zhu, Fang-Chao.,Danchin, Antoine.,...&Wang, Yong.(2018).The Enigmatic Genome of an Obligate Ancient Spiroplasma Symbiont in a Hadal Holothurian.APPLIED AND ENVIRONMENTAL MICROBIOLOGY,84(1).
MLA He, Li-Sheng,et al."The Enigmatic Genome of an Obligate Ancient Spiroplasma Symbiont in a Hadal Holothurian".APPLIED AND ENVIRONMENTAL MICROBIOLOGY 84.1(2018).
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