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The root enrichment of bacteria is consistent across different stress-resistant plant species

文献类型： 外文期刊

作者： Huang, Feng 1 ; Zhu, Congyi 2 ; Huang, Minli 4 ; Song, Xiaobing 1 ; Peng, Aitian 1 ;

作者机构： 1.Guangdong Acad Agr Sci, Inst Plant Protect, Key Lab Green Prevent & Control Fruits & Vegetable, Guang dong Prov Key Lab High Technol Plant Protect, Guangzhou, Guangdong, Peoples R China

2.Guangdong Acad Agr Sci, Key Lab South Subtrop Fruit Biol & Genet Resource, Guangzhou, Guangdong, Peoples R China

3.Guangdong Acad Agr Sci, Inst Fruit Tree Res, Guangdong Prov Key Lab Trop & Subtrop Fruit Tree R, Guangzhou, Guangdong, Peoples R China

4.Lichuan Bur Nat Resources, Fuzhou, Jiangxi, Peoples R China

关键词： Microbiota; Bacteria; Amplicon sequencing; Rhizosphere community; Root; Plant-microbe interaction; Abiotic stress; Pantoea; Microbial richness; Microbial diversity

期刊名称：PEERJ （ 影响因子：2.7； 五年影响因子：3.1 ）

ISSN： 2167-8359

年卷期： 2023 年 11 卷

页码：

收录情况： SCI

摘要： Bacteria, inhabiting around and in plant roots, confer many beneficial traits to promote plant growth and health. The secretion of root exudates modulates the nutritional state of the rhizosphere and root area, further selecting specific bacteria taxa and shaping the bacteria communities. Many studies of the rhizosphere effects have demonstrated that selection by the plant rhizosphere consistently enriches a set of bacteria taxa, and this is conserved across different plant species. Root selection effects are considered to be stronger than the rhizosphere selection effects, yet studies are limited. Here, we focus on the root selection effects across a group of 11 stress-resistant plant species. We found that the root selection consistently reduced the alpha diversity (represented by total number of observed species, Shannon's diversity, and phylogenetic diversity) and altered the structure and composition of bacteria communities. Furthermore, root selection tended to enrich for clusters of bacteria genera including Pantoea, Akkermansia, Blautia, Acinetobacter, Burkholderia-Paraburkholderia, Novosphingobium, Massilia, Pseudomonas, Chryseobacterium, and Stenotrophomonas. Our study offers some basic knowledge for understanding the microbial ecology of the plant root, and suggests that several bacteria genera are of interest for future studies.

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