Journal
WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
Volume 30, Issue 5, Pages 1639-1647Publisher
SPRINGER
DOI: 10.1007/s11274-013-1568-x
Keywords
Antagonist activity; Fungal plant pathogen; Biological control; Streptomyces
Categories
Funding
- FOMIX Conacyt-Campeche: Isolation, Identification and Conservation of Germplasm Bank of Actinomycetes from Los Petenes Biosphere Reserve [CAMP-2008-C01-96874]
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The use of antagonist microorganisms against fungal plant pathogens is an attractive and ecologically alternative to the use of chemical pesticides. Streptomyces are beneficial soil bacteria and potential candidates for biocontrol agents. This study reports the isolation, characterization and antagonist activity of soil streptomycetes from the Los Petenes Biosphere Reserve, a Natural protected area in Campeche, Mexico. The results showed morphological, physiological and biochemical characterization of six actinomycetes and their inhibitory activity against Curvularia sp., Aspergillus niger, Helminthosporium sp. and Fusarium sp. One isolate, identified as Streptomyces sp. CACIS-1.16CA showed the potential to inhibit additional pathogens as Alternaria sp., Phytophthora capsici, Colletotrichum sp. and Rhizoctonia sp. with percentages ranging from 47 to 90 %. This study identified a streptomycete strain with a broad antagonist activity that could be used for biocontrol of plant pathogenic fungi.
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