DETECTION OF PHYTOPLASMA IN CACTUS WITCHES' BROOM AND SEQUENCE ANALYSIS OF ITS 16S rDNA FRAGMENT
CAI Hong, KONG Bao-hua, LI Fan, CHEN Hai-ru, DUAN Yong-jia, LIU Jin-yuan
Acta Phytopathologica Sinica . 2002, (2): 175 -181 .