Ein Virus als Erreger der Rollkrankheit der Rebe


A virus has been isolated from grape vines diseased with leaf roll which is the cause of this dangerous illness in vineyards. This was proved by means of electromicrographs of the virus particles in pressed juices of all the diseased vine crops examined. The virus is only transmissible by graft and not by juice. 
DOI: 10.1007/BF02158535