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Link to original content: https://pubmed.ncbi.nlm.nih.gov/24408126
Diversity of bacterioplankton in coastal seawaters of Fildes Peninsula, King George Island, Antarctica - PubMed Skip to main page content
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. 2014 Feb;196(2):137-47.
doi: 10.1007/s00203-013-0950-2. Epub 2014 Jan 10.

Diversity of bacterioplankton in coastal seawaters of Fildes Peninsula, King George Island, Antarctica

Yin-Xin Zeng  1 , Yong Yu, Zong-Yun Qiao, Hai-Yan Jin, Hui-Rong Li
Affiliations

Diversity of bacterioplankton in coastal seawaters of Fildes Peninsula, King George Island, Antarctica

Yin-Xin Zeng et al. Arch Microbiol. 2014 Feb.

Abstract

The bacterioplankton not only serves critical functions in marine nutrient cycles, but can also serve as indicators of the marine environment. The compositions of bacterial communities in the surface seawater of Ardley Cove and Great Wall Cove were analyzed using a 16S rRNA multiplex 454 pyrosequencing approach. Similar patterns of bacterial composition were found between the two coves, in which Bacteroidetes, Alphaproteobacteria, and Gammaproteobacteria were the dominant members of the bacterioplankton communities. In addition, a large fraction of the bacterial sequence reads (on average 5.3 % per station) could not be assigned below the domain level. Compared with Ardley Cove, Great Wall Cove showed higher chlorophyll and particulate organic carbon concentrations and exhibited relatively lower bacterial richness and diversity. Inferred metabolisms of summer bacterioplankton in the two coves were characterized by chemoheterotrophy and photoheterotrophy. Results suggest that some cosmopolitan species (e.g., Polaribacter and Sulfitobacter) belonging to a few bacterial groups that usually dominate in marine bacterioplankton communities may have similar ecological functions in similar marine environments but at different geographic locations.

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