| Relationship of soil bacterial community composition from different ecosystems on Qinghai-Tibet Plateau with environment factors |
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| DOI：10.7606/j.issn.1000-7601.2019.01.03 |
| Key Words: bacterial community high-throughput sequencing microorganism-environment relationships Qinghai-Tibet Plateau |
| Author Name | Affiliation | | CHENG Liang | Plant Protection Institute, Qinghai Academy of Agriculture and Forestry Sciences, Qinghai University, Xining, Qinghai 810016, China
State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, Qinghai 810016, China
Key Laboratory of Agricultural Integrated Pest Management in Qinghai Province, Xining, Qinghai 810016, China | | WANG Xin | Soil and Fertilizer institute, Qinghai Academy of Agriculture and Forestry Sciences, Qinghai University, Xining, Qinghai 810016, China
State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, Qinghai 810016, China | | GUO Qing-yun | Plant Protection Institute, Qinghai Academy of Agriculture and Forestry Sciences, Qinghai University, Xining, Qinghai 810016, China
State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, Qinghai 810016, China
Key Laboratory of Agricultural Integrated Pest Management in Qinghai Province, Xining, Qinghai 810016, China |
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| Abstract: |
| To evaluate the distribution and the environmental dependence of soil microbes in arid land, we studied the composition and diversity of microbial communities in soils from different ecosystems on Qinghai-Tibet Plateau along with relevant environmental factors. The composition and diversity of Qinghai-Tibet Plateau soil bacteria were investigated by the high-throughput sequencing. Totally, 1 463 157 partial 16S rRNA gene sequences were obtained. These sequences revealed great amount of operational taxonomic units(OTUs), that is, 4 344~5 764 OTUs in soil samples. There were mainly Proteobacteria(35.5%), Actinobacteria(20.4%), Acidobacteria(12.5%), Bacteroidetes(7.3%), Chloroflexi(6.1%), and Firmicutes(5.3%), which had the largest number of Proteobacteria. And Alphaproteobacteria with 45.9% of all OTUs was the most abundant class of Proteobacteria, followed by Gammaproteobacteria and Betaproteobacteria of this phylum. Pearson correlation and redundancy analysis revealed that soil moisture, total organic carbon, and soil potassium content had significant effect on soil bacterial community distribution. |
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