Isolation, identification and activity analysis of antimicrobial compound from Bionectria ochroleuca strain Bo-1 Isolation and regeneration of Phomopsis asparagi protoplast A selective medium facilitating isolation of litchi downy blight pathogen Peronophythora litchii Cloning of a New Self-incompatibility S-allele in White Pear( Pyrus retschneideri) Molecular Biology Identif ication of Self-incompatibility Genotypes of NewApple Cultivars Centrifugal thin-layer chromatography and its application in separation and purification of medicine Antidepression constituents from Angelica Sinensis Radix in Xiaoyao Powder