Johnston R E, Wan K, Bose H R
J Virol. 1974 Nov;14(5):1076-82. doi: 10.1128/JVI.14.5.1076-1082.1974.
Homologous interference during Sindbis virus infection has been investigated. Prior infection of either chicken embryo fibroblast or BHK(21) cell cultures results in reduced yields of progeny virions of the superinfecting genotype. This reduction in yield results from a reduction in the number of cells in the cultures capable of producing the superinfecting genotype. The development of interference parallels the attachment kinetics of Sindbis virus. Interference requires an active viral genome since the activity is sensitive to inactivation by ultraviolet light, and an RNA(-) mutant, ts-24, fails to induce interference under nonpermissive conditions. However, ts-6, an RNA(-) mutant belonging to a different complementation group, and the RNA(+) mutants, ts-2 and ts-20, interfere at both permissive and nonpermissive temperatures.
已对辛德毕斯病毒感染期间的同源干扰进行了研究。鸡胚成纤维细胞或BHK(21)细胞培养物的预先感染会导致超感染基因型的子代病毒粒子产量降低。产量的这种降低是由于培养物中能够产生超感染基因型的细胞数量减少所致。干扰的发展与辛德毕斯病毒的附着动力学相似。干扰需要一个活跃的病毒基因组,因为这种活性对紫外线失活敏感,并且一个RNA(-)突变体ts-24在非允许条件下不能诱导干扰。然而,属于不同互补组的RNA(-)突变体ts-6以及RNA(+)突变体ts-2和ts-20在允许和非允许温度下均会产生干扰。