期刊
JOURNAL OF BASIC MICROBIOLOGY
卷 56, 期 8, 页码 929-933出版社
WILEY-BLACKWELL
DOI: 10.1002/jobm.201500666
关键词
Antagonistic actinomycetes; Biocontrol; Fusarium oxysporum f. sp Cucumerinum; Streptomyces rimosus
类别
资金
- National Natural Science Foundation of China [31401792]
Actinomycetes have received considerable attention as biocontrol agents against fungal plant pathogens and as plant growth promoters. In this study, a total of 320 actinomycetes were isolated from various habitats in China. Among which, 77 strains have been identified as antagonistic activities against Fusarium oxysporum f. sp. cucumerinum which usually caused fusarium wilt of cucumber. Of these, isolate actinomycete M527 not only displayed broad-spectrum antifungal activity but also showed the strongest antagonistic activity against the spore germination of F. oxysporum f. sp. cucumerinum. In pot experiments, the results indicated that isolate M527 could promote the shoot growth and prevent the development of the disease on cucumber caused by F. oxysporum f. sp. cucumerinum. The control efficacy against seedling fusariumwilt of cucumber after M527 fermentation broth root-irrigation was up to 72.1% as compared to control. Based on 16S rDNA sequence analysis, the isolate M527 was identified as Streptomyces rimosus.
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