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Effects of pea-tea intercropping on rhizosphere soil microbial communities

文献类型： 外文期刊

作者： Song, Laichao 1 ; Niu, Zhanhai 1 ; Chen, Shiliang 2 ; Zhao, Shilei 1 ; Qiu, Ziyuan 1 ; Wang, Yu 3 ; Hua, Xuewen 1 ; Ding, Zhaotang 4 ; Ma, Qingping 1 ;

作者机构： 1.Liaocheng Univ, Coll Agron, Liaocheng 252000, Peoples R China

2.Jinan Bur Agr & Rural Areas, Jinan 271100, Peoples R China

3.Qingdao Agr Univ, Coll Hort, Qingdao 266109, Peoples R China

4.Shandong Acad Agr Sci, Tea Res Inst, Jinan 250100, Peoples R China

关键词： Pea-tea intercropping; Rhizosphere; Bacterial communities; Tea quality

期刊名称：PLANT AND SOIL （ 影响因子：4.9； 五年影响因子：5.2 ）

ISSN： 0032-079X

年卷期： 2023 年

页码：

收录情况： SCI

摘要： Background and aim Pea-tea intercropping is known to improve tea quality but its potential mechanism remains unclear. This study aimed to elucidate the effects of pea-tea intercropping on rhizosphere soil microbial communities and interpret its potential role in the improvement of tea quality.Methods A high-throughput sequencing method was used to detect the microbial communities in the rhizosphere of pea-intercropped tea plants. KEGG and eggNOG databases were used for the functional annotation of microbial DNA sequences. Carbohydrate-active enzymes were used to evaluate soil quality.Results Some microbes in the rhizosphere of pea-intercropped tea plants showed large variations, particularly phyla Acidobacteria and Proteobacteria. The abundance of Bradyrhizobiaceae of Proteobacteria, which help in nitrogen fixation, increased significantly. The annotation of carbohydrate-active enzymes revealed that the relative content of glycoside hydrolases (GHs) increased significantly in the soil microbes of pea-intercropped tea plants. The KEGG analysis showed that more amino acid- and carbohydrate metabolism-related genes were enriched in the soil microbes of pea-intercropped tea plants. To sum up, pea-tea intercropping could improve tea quality by regulating soil microbes in terms of carbon- and nitrogen-fixing capacities.

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