1Institute of Research and Development, Duy Tan University, Da Nang 550000, Vietnam; Faculty of Pharmacy, Duy Tan University, Da Nang 550000, Vietnam
2Faculty of Biotechnology, Vietnam University of Agriculture, Hanoi 131000, Vietnam
3Science and Technology Office, Vietnam Academy of Agricultural Sciences, Hanoi 12513, Vietnam
Main Article Content
Erwinia is a genus of Enterobacteriacea containing mostly pathogens, which cause soft rot disease in many ornamental plants and crops, including Asparagus officinalis. Chemical treatments to control Erwinia have lost their attractiveness because of the development of resistant strains and the negative impacts on the environment and human health. Therefore, the study of biological controls of soft rot disease has gained great importance. There are several types of microorganisms that show activity against Erwinia spp. such as Pseudomonas fluorescence, Bacillus subtilis, and Streptomyces spp. Among them, Streptomyces spp. are found to be the most effective control agents. In this study, 64 isolates of Streptomyces were screened for their antibacterial activity against Erwinia spp. The results indicated that 18 isolates showed an antagonistic reaction against Erwinia spp. Among them, isolate D5.1 showed the highest inhibition activity. In addition, the morphological and antibacterial activities of isolate D5.1 grown in different conditions were also characterized.
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