TY - JOUR
T1 - The Effect of Organic Carbon on Soil Bacterial Diversity in an Antarctic Lake Region
AU - Han, Wenbing
AU - Wang, Nengfei
AU - Ma, Yue
AU - Lv, Jinjiang
AU - Wang, Shuang
AU - Zhang, Botao
AU - Jiang, Zhihui
AU - Cao, Huansheng
N1 - Funding Information:
This research was supported by the National Natural Science Foundation of China (No. 41776198), the Basic Scientific Fund for National Public Research Institutes of China (No. GY0219Q10), and the Development Fund of Marine Bioactive Substances, SOA (No. MBSMAT-2017-01).
Funding Information:
This research was supported by the National Natural Science Foundation of China (No. 41776198), the Basic Scientific Fund for National Public Research Institutes of China (No. GY0219Q10), and the Development Fund of Marine Bioactive Substances, SOA (No. MBSMAT-2017-01).
Publisher Copyright:
© 2019, Ocean University of China, Science Press and Springer-Verlag GmbH Germany.
PY - 2019/12/1
Y1 - 2019/12/1
N2 - This study assessed the effects of changes in organic carbon content on soil bacterial community composition and diversity 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 microbiomes, 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.
AB - This study assessed the effects of changes in organic carbon content on soil bacterial community composition and diversity 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 microbiomes, 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.
KW - bacterial community composition
KW - geochemical factor
KW - high-throughput sequencing
KW - organic carbon
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U2 - 10.1007/s11802-019-4097-x
DO - 10.1007/s11802-019-4097-x
M3 - Article
AN - SCOPUS:85075136943
SN - 1672-5182
VL - 18
SP - 1402
EP - 1410
JO - Journal of Ocean University of China
JF - Journal of Ocean University of China
IS - 6
ER -