Screening of antagonistic activity of microorganisms against Colletotrichum acutatum and Colletotrichum gloeosporioides

Archives of Biological Sciences

卷:62

关键词: antagonistic activity;    Colletotrichum acutatum;    Colletotrichum gloeosporioides;    Trichoderma harzianum;    Gliocladium roseum;    Bacillus subtilis;    Streptomyces noursei;    Streptomyces natalensis;   

DOI  :  10.2298/ABS1003611Z

来源: DOAJ

【 摘 要 】

The antagonistic activities of five biocontrol agents: Trichoderma harzianum, Gliocladium roseum, Bacillus subtilis, Streptomyces noursei and Streptomyces natalensis, were tested in vitro against Colletotrichum acutatum and Colletotrichum gloeosporioides, the causal agents of anthracnose disease in fruit crops. The microbial antagonists inhibited mycelial growth in the dual culture assay and conidial germination of Colletotrichum isolates. The two Streptomyces species exhibited the strongest antagonism against isolates of C. acutatum and C. gloeosporioides. Microscopic examination showed that the most common mode of action was antibiosis. The results of this study identify T. harzianum, G. roseum, B. subtilis, S. natalensis and S. noursei as promising biological control agents for further testing against anthracnose disease in fruits. .

【 授权许可】

Unknown