Metagenomic analysis of microbial communities of the sediments of the Kara Sea shelf and the Yenisei Bay

被引：6

作者：

Mamaeva, E. V. ^{[1
]}

Galach'yants, Yu. P. ^{[1
]}

Khabudaev, K. V. ^{[1
]}

Petrova, D. P. ^{[1
]}

Pogodaeva, T. V. ^{[1
]}

Khodzher, T. B. ^{[1
]}

Zemskaya, T. I. ^{[1
]}

机构：

[1] Russian Acad Sci, Siberian Branch, Limnol Inst, Irkutsk 664003, Russia

来源：

MICROBIOLOGY | 2016年 / 85卷 / 02期

关键词：

Kara Sea; Yenisei Bay; bottom sediments; microbial community; pyrosequencing; BOTTOM SEDIMENTS; LAKE BAIKAL; BACTERIAL; BACTERIOPLANKTON; DIVERSITY; DEGRADATION; ARCHAEA; WATERS;

D O I：

10.1134/S0026261716020132

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Microbial diversity in the sediments of the Kara Sea shelf and the southern Yenisei Bay, differing in pore water mineralization, was studied using massive parallel pyrosequencing according to the 454 (Roche) technology. Members of the same phyla (Cyanobacteria, Verrucomicrobia, Actinobacteria, Proteobacteria, and Bacteroidetes) predominated in bacterial communities of the sediments, while their ratio and taxonomic composition varied within the phyla and depended on pore water mineralization. Increasing salinity gradient was found to coincide with increased share of the gamma-Proteobacteria and decreased abundance of alpha- and beta-Proteobacteria, as well as of the phyla Verrucomicrobia, Chloroflexi, Chlorobi, and Acidobacteria. Archaeal diversity was lower, with Thaumarchaeota predominant in the sediments with high and low mineralization, while Crenarchaeota predominated in moderately mineralized sediments. Microbial communities of the Kara Sea shelf and Yenisei Bay sediments were found to contain the organisms capable of utilization of a broad spectrum of carbon sources, including gaseous and petroleum hydrocarbons.

引用

页码：220 / 230

页数：11

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