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分析了大麦黄花叶病毒的外壳蛋白及基因组ＲＮＡ的性状。ＳＤＳ－聚丙烯酰胺凝胶电泳表明，该病毒的外壳蛋白由单种亚基组成，其分子量为３４．９ＫＤａ，在常规提纯过程中，该病毒的外壳蛋白较不稳定，部分易降解为２８．０ＫＤａ和２６．６ＫＤａ的组分；不同毒源病毒的外壳蛋白分子量无明显差异，但其稳定性差异较大。１．２％变性琼脂糖凝胶电泳的测定结果表明，大麦黄花叶病毒的基因组ＲＮＡ由二组分组成，其大小分别为７．７８Ｋｂ（ＲＮＡ－１）和３．４８Ｋｂ（ＲＮＡ－２），且不同毒源间无明显差异。以Ｏｌｉｇｏ（ｄＴ）１５为引物反转录合成ｃＤＮＡ的实验表明，ＲＮＡ－１和ＲＮＡ－２的３端均带ｐｏｌｙ（Ａ）的结构，与国外已报道的相符。
The barley yellow mosaic virus coat protein and genomic RNA traits were analyzed. SDS-polyacrylamide gel electrophoresis showed that the coat protein of the virus consists of a single subunit with a molecular weight of 34.9 kDa. During normal purification, the coat protein of the virus is less stable and partially degraded to 28. 0KDa and 26.6KDa components; different virulent virus shell protein molecular weight no significant difference, but its stability is quite different. The results of 1.2% denaturing agarose gel electrophoresis showed that the genomic RNA of barley yellow mosaic virus was composed of two components, which were 7.78Kb (RNA-1) and 3.48Kb (RNA-2) in size, There was no significant difference between different virulent sources. The experiment of reverse transcribed cDNA with Oligo (dT) 15 as primer showed that the 3 ’end of both RNA-1 and RNA-2 had a poly (A) structure, which was in accordance with the reported abroad.