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The effects and interrelationships of intercropping on Cotton Verticillium wilt and soil microbial communities

文献类型： 外文期刊

作者： Zhang, Yun 1 ; Yang, Yuanxue 1 ; Lu, Xiuyun 2 ; Wang, Aiyu 1 ; Xue, Chao 1 ; Zhao, Ming 1 ; Zhang, Jianhua 1 ;

作者机构： 1.Shandong Acad Agr Sci, Inst Ind Crops, Jinan 250100, Peoples R China

2.Hebei Acad Agr & Forestry Sci, Inst Plant Protect, Baoding 071000, Peoples R China

关键词： Interplanting; Cotton Verticillium wilt; Soil; Microbial community structure

期刊名称：BMC MICROBIOLOGY （ 影响因子：4.2； 五年影响因子：4.7 ）

ISSN： 1471-2180

年卷期： 2023 年 23 卷 1 期

页码：

收录情况： SCI

摘要： BackgroundCotton Verticillium wilt, causing by Verticillium dahliae, has seriously affected the yield and quality of cotton. The incidence of Verticillium wilt in cotton fields has been on the rise for many years, especially after straw has been returned to the fields. Intercropping can reduce the incidence of soil borne diseases and is often used to control crop diseases, but the relationship between the effects of intercropping on microbial communities and the occurrence of plant diseases is unclear. This research explored the relationship between soil microbial community structure and Cotton Verticillium wilt in interplanting of cotton-onion, cotton-garlic, cotton-wheat and cotton monocultures. Amplicon sequencing applied to the profile of bacterial and fungal communities.ResultsThe results showed that the disease index of Cotton Verticillium wilt was significantly reduced after intercropping with cotton-garlic and cotton-onion. Chao1 and Sobs indices were not significantly different in the rhizosphere soil and pre-plant soils of the four planting patterns, but the pre-plant fungal shannon index was significantly lower in the cotton-onion intercropping plot than in the other three plots. PCoA analysis showed that the soil microbial communities changed to a certain extent after intercropping, with large differences in the microbial communities under different cropping patterns. The abundance of Chaetomium was highest in the cotton-garlic intercropping before planting; the abundance of Penicillium was significantly higher in the cotton-wheat intercropping than in the other three systems.ConclusionCotton-garlic and cotton-onion interplanting can control Cotton Verticillium wilt by affecting the soil microbial community. Fungi of the genera Chaetomium and Penicillium may be associated with plant disease resistance.

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