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用免疫荧光标记研究发现．挑蚜下颚口针有非持久性病毒WMMV－2和TEV的病毒附着位点，距口针尖端45～60μm，结合区全长约45～55μm，病毒附着蛋白含有α-D-甘露糖残基。用O．2％DOC溶液处理1h可破坏病毒附着位点。用0．2％DOC处理蚜虫后，分别构取PAV和GPV，结果禾谷缢管蚜传播GPv和PAv的能力显著降低，麦长管蚜和麦二叉蚜则不能传播GPV和PAV。从禾谷经管蚜虫体提取的RP1和RP2分子量分别约为83kD和57kD。从桃蚜口针中分离到一种相关组分，其分子量为76kD。
Immunofluorescence labeling study found. Aphid jaw mandibular mouth has non-persistent virus WMVV-2 and TEV virus attachment sites, away from the needle tip 45 ~ 60μm, the binding region of about 45 ~ 55μm in length, the virus attachment protein containing α-D-mannose residues . Use O. Treatment with 2% DOC for 1 h destroyed the virus attachment sites. After treatment of aphids with 0.2% DOC, the PAV and GPV were extracted separately. As a result, the ability of T. avenae to propagate GPv and PAv was significantly reduced, while S. avenae and A. bisporus could not transmit GPV and PAV. The molecular weights of RP1 and RP2 extracted from the aphids in H. cerealum were about 83 kD and 57 kD, respectively. A related component was isolated from the peach aphids, its molecular weight was 76kD.