Rhizosphere Microbiomes from Root Knot Nematode Non-infested Plants Suppress Nematode Infection

文献类型： 外文期刊

第一作者： Zhou, Dongmei

作者： Zhou, Dongmei;Feng, Hui;Zhang, Qimeng;Zhang, Jinfeng;Wei, Lihui;Schuelke, Taruna;De Santiago, Alejandro;Luo, Chuping

作者机构：

关键词： Soil bacterial community; Root knot nematodes; Biocontrol; Microbial diversity

期刊名称：MICROBIAL ECOLOGY （ 影响因子：4.552； 五年影响因子：4.77 ）

ISSN： 0095-3628

年卷期： 2019 年 78 卷 2 期

页码：

收录情况： SCI

摘要： Root knot nematodes (RKN, Meloidogyne spp.) are serious pathogens of numerous crops worldwide. Understanding the roles plant rhizosphere soil microbiome play during RKN infection is very important. The current study aims at investigating the impacts of soil microbiome on the activity of RKN. In this study, the 16S rRNA genes of the bacterial communities from nematode-infested and non-infested rhizosphere soils from four different plants were sequenced on the Illumina Hi-Seq platform. The soil microbiome effects on RKN infection were tested in a greenhouse assay. The non-infested soils had more microbial diversity than the infested soils from all plant rhizospheres, and both soil types had exclusive microbial communities. The inoculation of the microbiomes from eggplant and cucumber non-infested soils to tomato plants significantly alleviated the RKN infection, while the microbiome from infested soil showed increased the RKN infection. Furthermore, bacteria Pseudomonas sp. and Bacillus sp. were screened out from non-infested eggplant soil and exhibited biocontrol activity to RKN on tomato. Our findings suggest that microbes may regulate RKN infection in plants and are involved in biocontrol of RKN.

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