Study on isolation, identification and colonization ability of antagonistic bacterium M39 against pomegranate wilt pathogen

2019 2nd International Conference of Green Buildings and Environmental Management

生态环境科学

Yinli, Zhou^1 ; Jianwei, Guo^1 ; Wei, Yang^2^3 ; Jianbo, Bai^1 ; Qiong, Kong^1 ; Xianqi, Hu^4

Key Lab. of Higher Qual. and Efficient Cultivation and Security Control of Crops for Yunnan Province, Honghe University, Mengzi

661100, China^1

Commercial College, Honghe University, Mengzi

661100, China^2

Key Laboratory for Agri-biodiversity and Pest Management, Education Ministry of China, China^3

Yunnan Agricultural University, Kunming

650201, China^4

关键词: Antagonistic activity;    Antagonistic bacteria;    Bacterial strains;    Biological controls;    Colony morphology;    Corynebacterium;    Inhibition rate;    Physiological and biochemical characteristics;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/310/5/052019/pdf
DOI  :  10.1088/1755-1315/310/5/052019

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In this study, the bacteria with strong antagonistic activity against pomegranate wilt pathogen were isolated and screened from the soil samples collected from Yunnan Jianshui Pomegranate Garden and Mengzi Pomegranate Garden. The indoor inhibition rate of bacterial strain M39 against pomegranate wilt pathogen was 81.17%. The study showed that strain M39 could be stably colonized in the rhizosphere of pomegranate, which had potential biological control value. Based on the cultural characteristics of strain M39, colony morphology observation, physiological and biochemical characteristics analysis (Biolog system), strain M39 was initially identified as Corynebacterium freneyi.