Zonation of Microbial Communities by a Hydrothermal Mound in the Atlantis II Deep (the Red Sea)
Type
ArticleAuthors
Wang, YongLi, Jiang Tao
He, Li Sheng
Yang, Bo
Gao, Zhao Ming
Cao, Hui Luo
Batang, Zenon B.

Al-Suwailem, Abdulaziz M.
Qian, Pei-Yuan

KAUST Department
Coastal and Marine Resources Core LabComputational Bioscience Research Center (CBRC)
Date
2015-10-20Permanent link to this record
http://hdl.handle.net/10754/583930
Metadata
Show full item recordAbstract
In deep-sea geothermal rift zones, the dispersal of hydrothermal fluids of moderately-high temperatures typically forms subseafloor mounds. Major mineral components of the crust covering the mound are barite and metal sulfides. As a result of the continental rifting along the Red Sea, metalliferous sediments accumulate on the seafloor of the Atlantis II Deep. In the present study, a barite crust was identified in a sediment core from the Atlantis II Deep, indicating the formation of a hydrothermal mound at the sampling site. Here, we examined how such a dense barite crust could affect the local environment and the distribution of microbial inhabitants. Our results demonstrate distinctive features of mineral components and microbial communities in the sediment layers separated by the barite crust. Within the mound, archaea accounted for 65% of the community. In contrast, the sediments above the barite boundary were overwhelmed by bacteria. The composition of microbial communities under the mound was similar to that in the sediments of the nearby Discovery Deep and marine cold seeps. This work reveals the zonation of microbial communities after the formation of the hydrothermal mound in the subsurface sediments of the rift basin.Citation
Zonation of Microbial Communities by a Hydrothermal Mound in the Atlantis II Deep (the Red Sea) 2015, 10 (10):e0140766 PLOS ONEPublisher
Public Library of Science (PLoS)Journal
PLoS ONEPubMed ID
26485717Additional Links
http://dx.plos.org/10.1371/journal.pone.0140766ae974a485f413a2113503eed53cd6c53
10.1371/journal.pone.0140766
Scopus Count
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