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Large-scale structure, composition, and diversity of soil bacterial and fungal communities in ancient tea plantations
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  • Guisheng Xiang,
  • Zijun Wang,
  • Guorong Li,
  • Dawei Li,
  • Jing Yan,
  • Shuang Ye,
  • Chunping Wang,
  • Ling Yang,
  • Shiyu Zhang,
  • Shuangyan Zhang,
  • Ling Zhou,
  • Heng Gui,
  • Jianchu Xu,
  • Wei Chen,
  • Jun Sheng,
  • Yang Dong
Guisheng Xiang
Yunnan Agricultural University
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Zijun Wang
Yunnan Agricultural University
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Guorong Li
Lincang Tea Research Institute
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Dawei Li
Yunnan Agricultural University
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Jing Yan
Yunnan Agricultural University
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Shuang Ye
Yunnan Agricultural University
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Chunping Wang
Yunnan Agricultural University
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Ling Yang
Yunnan Agricultural University
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Shiyu Zhang
Yunnan Agricultural University
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Shuangyan Zhang
Yunnan Agricultural University
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Ling Zhou
Yunnan Agricultural University
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Heng Gui
Kunming Institute of Botany Chinese Academy of Sciences
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Jianchu Xu
Kunming Institute of Botany Chinese Academy of Sciences
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Wei Chen
Yunnan Agricultural University
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Jun Sheng
Yunnan Agricultural University
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Yang Dong
Yunnan Agricultural University
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Abstract

The ecosystem of tea plantations portrays a special interaction among environment, soil microorganisms and tea trees. Under the influence of environmental factors and human management, the growth, quality, yield of tea trees and the tea leaves may also be dependent upon the changes in the soil microbial community. However, little is known about the composition and structure of soil bacterial and fungal communities in hundred-year-old tea plantations and the mechanisms by which they are affected. In this regard, we characterized the microbiome of tea plantation soils by considering the bacterial and fungal communities in 448 soil samples from 101 ancient tea plantations in eight counties of Lincang city, which is one of domestication centers of tea trees in the world. We applied 16S and ITS rRNA high-throughput sequencing techniques, and found that the effect of pH and altitude changes on the relative abundance of fungal communities was more pronounced than that on bacteria. In terms of the influence of pH and altitude on soil microbial communities, the abundance and diversity of bacterial communities were more sensitive to pH than those of fungi. The α-diversity of bacterial communities peaked in the pH 4.50-5.00 and altitude 2,200 m group, and the highest α-diversity of fungi showed in the pH 5.00-5.50 and 900 m group. While all microbes varied similarly changing with environment and geographies, and further correlations were found that the composition and structure of bacterial communities were more sensitive to latitude and altitude than that of fungal communities.

Peer review status:POSTED

28 Jun 2020Submitted to Molecular Ecology Resources
08 Jul 2020Assigned to Editor
08 Jul 2020Submission Checks Completed