Seifers Dallas L, Harvey Tom L, Martin T J, Jensen Stanley G
Associate Professor, Kansas State University, Agricultural Research Center-Hays, Hays 67601-9228.
Professor, Department of Entomology, Kansas State University, Manhattan 66506.
Plant Dis. 1998 Aug;82(8):875-879. doi: 10.1094/PDIS.1998.82.8.875.
Barley (Hordeum vulgare), cheat (Bromus secalinus), corn (Zea mays), oat (Avena sativa), rye (Secale cereale), and wheat (Triticum aestivum) were infected by a Kansas isolate of the High Plains virus (HPV) in greenhouse experiments, but several other grass species were not. Infection of a host was dependent upon wheat curl mite numbers. Although both green foxtail (Setaria viridis) and yellow foxtail (S. glauca) are found naturally infected by HPV, only yellow foxtail could be infected in greenhouse experiments. Field sampling (1994 to 1996) of symptomatic yellow foxtail showed that it is a good indicator of the presence of HPV, with 252 of 278 symptomatic plants testing positive in enzyme-linked immunosorbent assay (ELISA) for HPV, 2 of 278 for American wheat striate mosaic virus, and 1 of 278 for johnson grass mosaic virus, whereas 23 of 278 symptomatic plants were negative for all viruses tested by ELISA and were not infectious in back-assays.
在温室试验中，大麦（Hordeum vulgare）、雀麦（Bromus secalinus）、玉米（Zea mays）、燕麦（Avena sativa）、黑麦（Secale cereale）和小麦（Triticum aestivum）被来自堪萨斯州的高平原病毒（HPV）分离株感染，但其他几种禾本科植物未被感染。宿主的感染取决于小麦卷叶螨的数量。虽然绿狗尾草（Setaria viridis）和黄狗尾草（S. glauca）在自然条件下都被HPV感染，但在温室试验中只有黄狗尾草能够被感染。对有症状的黄狗尾草进行田间采样（1994年至1996年）表明，它是HPV存在的良好指示植物，在278株有症状的植物中，252株通过酶联免疫吸附测定（ELISA）检测HPV呈阳性，2株检测美洲小麦条纹花叶病毒呈阳性，1株检测约翰逊草花叶病毒呈阳性，而278株有症状的植物中有23株ELISA检测所有病毒均为阴性，且在回接试验中无传染性。
