Pathogen Identification and Biological Characteristics of Cornus controversum Leaf Blight
The leaf blight fungus of Comus controversum was idendified by combining the traditional morphologicical and molecular biological methods.The biological properties of pathogens were examined.The results showed that the pathogenic bacterium was Alternaria napiformis.The optimum temperature for myceliμm growth was 20-35℃ and the optimum range of pH was 6-8.The myceliμm grew best on the media with lactose as carbon source,yeast as nitrogen resource and the optimum medium for the myceliμm growth was vegetable juice medium.