Morphological and biological characters of cucumber mosaic virus strains infecting babana
Abstract: The morphological and biological characters of three CMV isolates infecting banana fromGuangdong were studied.According to the different reactions in six kinds of host plants includingCucumis sativus,Nicotiana tabacum cv,HV38,Lycopersicon esculentum,Cucumis melover.saccharins,and sepecially Musa acuminata,the three isolates could be distinctly distinguished.The diameters of the virus particle of BS,CS and MM were 22.5, 24.3 and 27 nm,and the rela-tive electrophoretic mobilities of their particles were 0.72,0.56 and 0.51,respectively.The MMisolate multiplied and spreaded more rapidly with higher concentrations in Cucurbita pepo andNicotiana tabacum than the BS or the CS isolate,and in turn then BS isolate more rapidly thanthe CS isolate.