Effects of the Biocontrol Agent Aspergillus flavipes on the Soil Microflora and Soil Enzymes in the Rooting Zone of Pepper Plants Infected with Phytophthora capsici

文献类型： 外文期刊

第一作者： Wang, Hui

作者： Wang, Hui;Liu, Changyuan;Liu, Li;Yu, Shuyi;Liang, Chunhao;Guan, Tianshu;Zhao, Kuihua;Zhao, Xinhua;Irfan, Muhammad

作者机构：

关键词： Aspergillus flavipes;biocontrol;Phytophthora capsici;soil enzymes;soil microflora

期刊名称：JOURNAL OF PHYTOPATHOLOGY （ 影响因子：1.789； 五年影响因子：1.574 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： This study examined the effect of ASD strain (Aspergillus flavipes), isolated from continuous cropping soil for pepper and named by the sampling position, on soil microflora and soil enzymes in rooting zone soil of healthy and diseased (Phytophthora capsici) pepper plants. Results showed that the ASD strain could significantly reduce the number of bacteria and actinomycetes, with a significant increase in fungi in the rhizosphere soil of both healthy and diseased plants. With increasing colonization time of the ASD strain, the number of bacteria and actinomycetes decreased initially and then increased gradually, while the number of fungi was first increased significantly and later decreased slowly. The soil enzyme activities of urease, acid phosphatase, invertase and dehydrogenase were significantly increased by the ASD strain, while the activity of catalase was not significantly increased. As time from inoculation with the ASD strain increased, the activities of various enzymes were higher than controls. Maximum enzyme activities were found on the tenth day after ADS inoculation. The response of soil enzyme activities affected by the ASD strain was as follows: urease>dehydrogenase>invertase>acid phosphatase>catalase. These results suggest that the biocontrol of ASD strain could improve the micro ecology of rhizosphere soil.

分类号： Q945

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