Effects of different rotation patterns on the occurrence of clubroot disease and diversity of rhizosphere microbes

文献类型： 外文期刊

第一作者： Yang Xiao-xiang

作者： Yang Xiao-xiang;Huang Xiao-qin;Wu Wen-xian;Xiang Yun-jia;Du Lei;Zhang Lei;Liu Yong;Yang Xiao-xiang;Huang Xiao-qin;Zhang Lei;Liu Yong

作者机构：

关键词： oilseed rape; clubroot; Gramineae; Leguminosae; Cruciferae; rhizosphere soil

期刊名称：JOURNAL OF INTEGRATIVE AGRICULTURE （ 影响因子：2.848； 五年影响因子：2.979 ）

ISSN： 2095-3119

年卷期： 2020 年 19 卷 9 期

页码：

收录情况： SCI

摘要： Clubroot disease, caused by Plasmodiophora brassicae, is one of the most destructive soil-borne diseases in cruciferous crops worldwide. New strategies are urgently needed to control this disease, as no effective disease-resistant varieties or chemical control agents exist. Previously, we found that the incidence rate and disease index of clubroot in oilseed rape decreased by 50 and 40%, respectively, when oilseed rape was planted after soybean. In order to understand how different rotation patterns affect the occurrence of clubroot in oilseed rape, high-throughput sequencing was used to analyze the rhizosphere microbial community of oilseed rape planted after leguminous (soybean, clover), gramineous (rice, maize) and cruciferous (oilseed rape, Chinese cabbage) crops. Results showed that planting soybeans before oilseed rape significantly increased the population density of microbes that could inhibit P. brassicae (e.g., Sphingomonas, Bacillus, Streptomyces and Trichoderma). Conversely, consecutive cultivation of cruciferous crops significantly accumulated plant pathogens, including P. brassicae, Olpidium and Colletotrichum (P<0.05). These results will help to develop the most effective rotation pattern for reducing clubroot damage.

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