首页|The Effect of Organic Carbon on Soil Bacterial Diversity in an Antarctic Lake Region

The Effect of Organic Carbon on Soil Bacterial Diversity in an Antarctic Lake Region

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This study assessed the effects of changes in organic carbon content on soil bacterial community composition and diver-sity in the Antarctic Fildes Peninsula. 16S rRNA gene sequencing was performed to investigate bacterial community composition. Firstly, we found that organic carbon (OrC) and nutrients showed an increasing trend in the lake area. Secondly, soil geochemistry changes affected microbial composition in the soil. Specifically, we found 3416 operational taxonomical units (OTUs) in 300 genera in five main phyla: Proteobacteria, Actinobacteria, Acidobacteria, Chloroflexi, and Bacteroidetes. Although the diversity was similar among the four sites, the composition was different. Among them, Hungateii content changed very significantly, from 16.67％ to 33.33％. Canonical correspondence analysis showed that most measured geochemical factors were relevant in structuring micro-biomes, and organic carbon concentration showed the highest correlation, followed by NO3−-N. Hungateii was significantly correlated with the content of organic carbon. Our finding suggested organic carbon played an important role in soil bacterial communities of the Antarctic coastal lake region.

bacterial community compositiongeochemical factorhigh-throughput sequencingorganic carbon

HAN Wenbing、WANG Nengfei、MA Yue、LV Jinjiang、WANG Shuang、ZHANG Botao、JIANG Zhihui、CAO Huansheng

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College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China

Key Laboratory of Marine Bioactive Substances, First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China

Department of Bioengineering, College of Marine Sciences and Biological Engineering, Qingdao University of Science & Technology, Qingdao 266042, China

School of Basic Medicine, Qingdao University, Qingdao 266071, China

Key Laboratory of Marine Science and Numerical Modeling, State Oceanic Administration, Qingdao 266061, China

Center for Fundamental and Applied Microbiomics, Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA

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This research was supported by the National Natural Science Foundation of ChinaThis research was supported by the National Natural Science Foundation of Chinahe Basic Scientific Fund for National Public Research Institutes of Chinahe Basic Scientific Fund for National Public Research Institutes of Chinahe Basic Scientific Fund for National Public Research Institutes of ChinaDevelopment Fund of Marine Bioactive Substances, SOA

41776198t GY0219Q10 MBSMAT-2017-01

2019

中国海洋大学学报(自然科学英文版)
中国海洋大学

中国海洋大学学报(自然科学英文版)

CSTPCDCSCDSCI
影响因子：0.268
ISSN：1672-5182
年,卷(期)：2019.18(6)
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