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Control of Fusarium wilt by wheat straw is associated with microbial network changes in watermelon rhizosphere

文献类型： 外文期刊

作者： Tang, Lili 1 ; Xia, Ye 5 ; Fan, Chao 1 ; Kou, Jinming 1 ; Wu, Fengzhi 1 ; Li, Wenhui 1 ; Pan, Kai 1 ;

作者机构： 1.Northeast Agr Univ, Coll Hort & Landscape Architecture, 600 Changjiang St, Harbin 150030, Heilongjiang, Peoples R China

2.Northeast Agr Univ, Minist Agr, Key Lab Biol & Genet Improvement Hort Crops North, Harbin 150030, Heilongjiang, Peoples R China

3.Heilongjiang Acad Agr Sci, Inst Cash Crops, Harbin 150086, Heilongjiang, Peoples R China

4.Heilongjiang Acad Agr Sci, Inst Crop Cultivat & Tillage, Harbin 150086, Heilongjiang, Peoples R China

5.Ohio State Univ, Dept Plant Pathol, Columbus, OH 43210 USA

期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.379； 五年影响因子：5.133 ）

ISSN： 2045-2322

年卷期： 2020 年 10 卷 1 期

页码：

收录情况： SCI

摘要： Straw return is an effective strategy to alleviate soil-borne diseases. Though watermelon Fusarium wilt is a severe soil-borne disease, the effect of wheat straw on the disease remains unclear. Thus, we investigated the effects of wheat straw on soil bacterial and fungal communities by adding wheat straw to consecutive watermelon soil in the greenhouse condition. The microbiome changes were further investigated using network analysis based on 16S rDNA and internal transcribed spacer deep sequencing. Wheat straw addition increased the fungal community diversity, whereas the bacterial diversity was not affected. Compared to the control group, the relative abundance of some bacteria, including Actinobacteria, Chloroflexi, and Saccharibacteria, was increased with wheat straw addition. For fungi, the relative abundance of Fusarium was decreased with wheat straw addition. Microbial network analysis demonstrated that the fungal community has a more complex connection than the bacterial community. In addition, redundancy analysis indicated that the Fusarium genera were significantly related to the disease index. Taken together, the addition of wheat straw might affect the microbial community through increasing the relative abundance of phylum Actinobacteria, decreasing the relative abundance of Fusarium, and increasing the fungal network complexity to enhance the defense of watermelon against Fusarium wilt disease.

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