Study on Bean Yellow Mosaic Virus Isolated from Alfalfa
Abstract: A virus isolate M-4 is obtained from alfalfa plant with yellow spot mosaic in Xingjiang. The M-4 isolate could cause systematic mosaic on many kinds of Leguminosae plants and give local chlorosis spots on Chenopodiaceae plants The virus is easily to be transmitted by sap and aphis inoculation, but not by bean seeds, The thermal death point is60—65℃; the dilution end point is 10~(-3)—10~(-4) and the longevity in vitro is 4—5 days The size of the filament particles is about 660—740×15nm in purified virus prep...