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Characteristics of the cultivable bacteria from sediments associated with two deep-sea hydrothermal vents in Okinawa Trough
Sun, Qing-lei1,2,4; Wang, Ming-qing1,2; Sun, Li1,2,3
2015-12-01
Source PublicationWORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
Volume31Issue:12Pages:2025-2037
SubtypeArticle
AbstractIn this study, different culture-dependent methods were used to examine the cultivable heterotrophic bacteria in the sediments associated with two deep-sea hydrothermal vents (named HV1 and HV2) located at Iheya Ridge and Iheya North in Okinawa Trough. The two vents differed in morphology, with HV1 exhibiting diffuse flows while HV2 being a black smoker with a chimney-like structure. A total of 213 isolates were identified by near full-length 16S rRNA gene sequence analysis. Of these isolates, 128 were from HV1 and 85 were from HV2. The bacterial community structures were, in large parts, similar between HV1 and HV2. Nevertheless, differences between HV1 and HV2 were observed in one phylum, one class, 4 orders, 10 families, and 20 genera. Bioactivity analysis revealed that 25 isolates belonging to 9 different genera exhibited extracellular protease activities, 21 isolates from 11 genera exhibited extracellular lipase activities, and 13 isolates of 8 genera displayed antimicrobial activities. This is the first observation of a large population of bacteria with extracellular bioactivities existing in deep-sea hydrothermal vents. Taken together, the results of this study provide new insights into the characteristics of the cultivable heterotrophic bacteria in deep-sea hydrothermal ecosystems.
KeywordDeep-sea Hydrothermal Vent Sediment Cultivable Bacteria Lipase Protease Antimicrobial
DOI10.1007/s11274-015-1953-8
Indexed BySCI
Language英语
WOS IDWOS:000363725700020
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/73945
Collection实验海洋生物学重点实验室
Affiliation1.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao, Peoples R China
3.Zhejiang Univ, Collaborat Innovat Ctr Deep Sea Biol, Hangzhou 310003, Zhejiang, Peoples R China
4.Univ Chinese Acad Sci, Beijing, Peoples R China
First Author AffilicationKey Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Sun, Qing-lei,Wang, Ming-qing,Sun, Li. Characteristics of the cultivable bacteria from sediments associated with two deep-sea hydrothermal vents in Okinawa Trough[J]. WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY,2015,31(12):2025-2037.
APA Sun, Qing-lei,Wang, Ming-qing,&Sun, Li.(2015).Characteristics of the cultivable bacteria from sediments associated with two deep-sea hydrothermal vents in Okinawa Trough.WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY,31(12),2025-2037.
MLA Sun, Qing-lei,et al."Characteristics of the cultivable bacteria from sediments associated with two deep-sea hydrothermal vents in Okinawa Trough".WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY 31.12(2015):2025-2037.
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