【摘要】 <正> 人们已经报道了很多的病毒感染抑制物质,但这些物质在应用上却受到了很大的限制。利用中草药治疗植物病毒在国内外尚无成功的先例。我们从1986年开始对中草药板蓝根进行了一系列试验,发现它的抽提物能抑制病毒侵染,继而又发现它有抑制增殖的作用。更多还原

【Abstract】 It has been found that the extracting solution of Banlangen （Isatis indigotica）can evidently inhibit TMV increase in Nicotiana tabacum and reduce the extent of the disease of plants inoculated with TMV. The disease index of the treated plants is under 60, while that of the contrasted plants is above 80. The results of the detections on the 10th day after the plants were inoculated 10^-5 TMV showed that the TMV consistency is 10^-6 in the treated plants and there were nearly no local lesions on Nicotiana glutinosa, but the TMV consistency is 10^-6—10^-3 in the contrasted plants and there were a great deal of local lesions.更多还原