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Changes in root metabolites and soil microbial community structures in rhizospheres of sugarcanes under different propagation methods

文献类型： 外文期刊

作者： Lin, Xinru 1 ; Yang, Da 1 ; Zhu, Yu 1 ; Qin, Yonglin 1 ; Liang, Tian 2 ; Yang, Shangdong 1 ; Tan, Hongwei 2 ;

作者机构： 1.Guangxi Univ, Agr Coll, Natl Demonstrat Ctr Expt Plant Sci Educ, Guangxi Key Lab Agroenvironm & Agroprod Safety, Nanning, Guangxi, Peoples R China

2.Guangxi Acad Agr Sci, Guangxi Key Lab Sugarcane Genet Improvement, Nanning, Guangxi, Peoples R China

3.Guangxi Univ, Agr Coll, 100 Univ Rd, Nanning 530004, Guangxi, Peoples R China

期刊名称：MICROBIAL BIOTECHNOLOGY （ 影响因子：5.7； 五年影响因子：6.4 ）

ISSN： 1751-7915

年卷期： 2023 年

页码：

收录情况： SCI

摘要： Root metabolites and soil microbial community structure in the rhizosphere play critical roles in crop growth. Here, we assessed the efficiency of conventional and tissue culture propagation methods in modulating the soil health and microbiota in the rhizosphere of sugarcane (Saccharum officinarum L.) plants. The seeding canes were obtained using newly planted and two-year ratooned canes propagated by conventional (CSN and CSR) or tissue culture (TCN and TCR) methods. Changes in soil fertility, root metabolites and soil microbial community structure in the rhizosphere of sugarcane plants obtained using these canes were assessed. The activities of soil beta-glucosidase and aminopeptidase, soil microbial biomass nitrogen, and abundances of soil beneficial microbes, both at phyla and genera levels, were significantly higher in the rhizosphere of sugarcane plants in TCN and TCR treatments than those in that of plants in CSN and CSR treatments. Furthermore, flavonoid and flavonol biosynthesis and alanine, aspartate and glutamate metabolism were significantly upregulated in the roots of TCR and TCN plants compared with those in the roots of CSN and CSR plants. These results suggest that the tissue culture propagation method is a sustainable method for sugarcane cultivation to improve soil fertility and health in sugarcane rhizosphere. Compared to conventional propagation methods, tissue culture propagation can significantly increase the number of beneficial microbes in the sugarcane rhizosphere. Meanwhile, the biosynthesis of flavonoids and flavonols and the metabolism of alanine, aspartate, and glutamate were significantly up-regulated in the tissue culture propagation method.image

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