琼英山古茶园土壤细菌群落多样性及组成研究

doi:10.3969/j.issn.1674-7968.2024.11.015

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Abstract As a rare natural heritage site, the ancient tea plantation of Qiongying mountain holds significant ecological, cultural, and economic value. Its sustainable development is inseparable from a healthy soil micro-ecological environment. To investigate the structural characteristics of soil bacterial communities in the ancient tea plantation of Qiongying mountain, Fengqing county, Yunnan province, this study focused on the rhizosphere and bulk soils of the ancient tea plantation on Qiongying Mountain. Using 16S rRNA gene amplicon sequencing technology, the diversity and structural characteristics of the soil bacterial communities and their relationship with soil chemical properties were analyzed. The results showed that: (1) Alpha diversity analysis indicated the bacterial community abundances in the rhizosphere and bulk soils of the valley were significantly higher than that in the rhizosphere and bulk soils of the mountaintop; there were no significant differences in the abundance or diversity of bacterial communities between rhizosphere and bulk soils at the mountaintop and valley. (2) The dominant phyla were Acidobacteriota (21.15%~26.76%) and Proteobacteria (15.06%~20.79%), and the dominant genera were Candidatus_Solibacter (2.6%~3.6%), Acidibacter (2.6%~3.4%) and Bryobacter (2.2%~2.6%). (3) Beta diversity analysis showed that the composition and structure of bacterial communities were similar but had certain differences. (4) Redundancy analysis (RDA) showed that soil organic matter was the main environmental factor affecting the composition and structure of bacterial community in rhizosphere soil. In conclusion, this study preliminarily explored the characteristics of the bacterial community structure in the rhizosphere and bulk soils of ancient tea trees at the mountaintop and valley of the Qiongying Mountain tea plantation. These findings can provide a reference basis for the protection and utilization of ancient tea trees in tea plantations.

Key words： Ancient tea plantations Mountaintop soil Valley soil Soil bacteria Rhizosphere and bulk High-throughput sequencing

Received: 08 January 2024

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S154.38+1

Corresponding Authors: *huangxx@swfu.edu.cn

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	YAN Xing
	YANG Xiong-Wei
	CUI Shi-Fang
	HUANG Xiao-Xia

Cite this article:

YAN Xing,YANG Xiong-Wei,CUI Shi-Fang, et al. Study on Soil Bacterial Community Diversity and Composition in Qiongying Mountain Ancient Tea Plantation[J]. 农业生物技术学报, 2024, 32(11): 2614-2626.

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https://journal05.magtech.org.cn/Jwk_ny/EN/10.3969/j.issn.1674-7968.2024.11.015 OR https://journal05.magtech.org.cn/Jwk_ny/EN/Y2024/V32/I11/2614

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