Apple-marigold intercropping improves soil properties by changing soil metabolomics and bacterial community structures
文献类型： 外文期刊
作者： Xue, Xiaomin 1 ; Chen, Ru 1 ; Xu, Chao 2 ; Zhang, Chunxiang 3 ; Dong, Lijuan 3 ; Zhao, Xianyan 2 ; Wang, Xiaohan 2 ;
作者机构： 1.Shandong Inst Pomol, Tai An, Peoples R China
2.Qilu Univ Technol, Shandong Acad Sci, Sch Bioengn, Jinan, Peoples R China
3.Taishan Forestry Res Inst, Tai An, Peoples R China
关键词： marigold; intercropping; soil properties; soil metabolomics; bacterial community structures
期刊名称：FRONTIERS IN MICROBIOLOGY （ 影响因子：5.2； 五年影响因子：6.2 ）
ISSN：
年卷期： 2023 年 14 卷
页码：
收录情况： SCI
摘要： Marigold can protect crops against soil-borne diseases. However, the effects of intercropping with marigold on apple rhizosphere soils are not known. In this study, we investigated the metabolite profiles and bacterial community structures in rhizosphere soils of the apple-marigold intercropping system by high-throughput sequencing and soil metabolomics. The results show that intercropping marigold could significantly enhance soil moisture, nitrogen, and enzyme activities compared with clean tillage. The soil metabolite profiles and the soil bacterial community structures in the rhizosphere soils were different between the inter-and mono-cropping systems. Among nine metabolites, carbohydrates were more increased in the intercropping system than in the monocropping system. Pathway enrichment analysis revealed that the greatest differential, in terms of metabolic pathway, was starch and sucrose metabolism. Moreover, intercropping marigold significantly increased the relative abundance of plant growth promoting bacteria in rhizosphere soils, such as Rhizobiales, Pseudomonadales, and Bacillales. These results indicate that marigold intercropping positively affected the apple orchard's soil quality and may provide a new intercropping technique to improve soil fertility in orchards and promote plant growth.
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