Abstract
The biocontrol agent Streptomyces violaceusniger YCED9 inhibited in vitro growth of seven fungal pathogens of turfgrass. Three different antibiotics were produced by the actinomycete, including nigericin, geldanamycin and a complex of macrocyclic lactone antibiotics. Each had a different spectrum of antifungal activity. Only nigericin was detected in soil or in grass rhizospheres inoculated with YCED9. However, all three antibiotics were produced when YCED9 was grown in a mixture of moistened grass and thatch. In greenhouse experiments, a grass seedling disease caused by the Rhizoctonia solani and a crown-foliar disease caused by Sclerotinia homeocarpa were partially controlled with commercial spore formulations of YCED9.
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Trejo-Estrada, S., Sepulveda, I.R. & Crawford, D. In vitro and in vivo antagonism of Streptomyces violaceusniger YCED9 against fungal pathogens of turfgrass. World Journal of Microbiology and Biotechnology 14, 865–872 (1998). https://doi.org/10.1023/A:1008877224089
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DOI: https://doi.org/10.1023/A:1008877224089