摘要
近几年来,在我国番茄主产区鉴定出番茄病毒病的主要毒原有烟草花叶病毒(TMV)、黄瓜花叶病毒(CMV)、马铃薯X病毒(PVX)和马铃薯Y病毒(PVY),分别占样本的63.2%、21.4%、4.8%和3.1%,但愈往北TMV愈突出,愈往南CMV愈重要。並首次根据番茄品种中含抗TMV的基因将我国番茄上TMV划分为4个株系,即0、1、2和1.株系,分别占分离物的81%、13.6%、3.6%和1.8%。
According to differential host reactions,host range,manner of transmission,serological relationships,stability in sap,particle sizes and shapes,the main causal viruses of tomato virus diseases in China were identified to be tobacco mosaic virus(TMV)and cucumber mosaic virus(CMV).Among the 3914 samples examined,TMV and CMV occupied 63.2%and 33.9%respectively.In addition,potato virus x(PVX)and potato virus y(PVY)constituted a small proportion.The 221 isolates of TMV in tomato were classified on the basis of the method described by Pelham(1972),and on the basis of reactions on the differential hosts of GCR tomato lines with genotypes Tm-1/Tm-1,Tm-2■/Tm-2■,Tm-2/Tm-2,Tm-1/Tm-1 Tm-2■/Tm-2■and Tm-2^(2)/Tm-2^(2).The results of the experiments showed that TMV strain 0,1,1.2 and 2 occupied 81%,13.6%,1.8%and 36%respectivelyAscites-derived antibodies of mice and antigens of the 4 strains could crose-react serologically in immune gel-diffusion test.but there were certain differences among the antigenicities of strans.The above-stated work provided scientific basis for virus resistance breeding in tomato.
出处
《中国农业科学》
1987年第3期60-66,共7页
Scientia Agricultura Sinica
