Characterization of the newly isolated antimicrobial strain Streptomyces goshikiensis YCXU release_zeuem6ub6bhbplrkllsxlyzdbq

Abstract

A rhizosphere bacterial strain coded as Streptomyces goshikiensis YCXU with broad spectrum antifungal activity was isolated from a cucumber field infested with Fusarium oxysporum f. sp. niveum. The strain YCXU showed antagonism to a broad range of phyto-pathogenic fungi and bacteria as well as strain YCXU produced volatile organic compounds that could reduce the fungal growth up to 40% compared to control, concluding that it can be used as biocontrol agent. Because of little information about the newly isolated strain, we further characterized the strain YCXU. The strain YCXU showed maximum growth on glucose containing yeast-malt extract (YME) medium at pH 7 and pink spores were produced after 7 days of incubation at 28°C. The strain YCXU exhibited nitrate reduction, melanin production, blood hemolysis, and casein, gelatin, starch, tyrosine, and hypoxanthine hydrolysis. This characterization will aid further research regarding the strains of S. goshikiensis.
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