植物ウイルス病の化学療法に関する研究 : XII. 抗ウイルス性薬剤の施用法

概要

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The effect of root-dipping, banding, and spraying with antiviral substances such as blasticidin S (BcS), ohyamycin (OM), polyoxin A (POA), and thiouracil (2-TU), upon SyStemic and 1oca1 infections of tomato seed11ngs inoculated with tobacco mosaic virus (TMV) and/or potato virus X (PVX) was studied. A preinoculation root-dipping plus postinoculation banding and spraying reduced the percentage of infection, prolonged the incubation period, and decreased the virus concentration in roots. OM showed the most distinct virus-inhibition, but the root e1ongation as we11 as shoot growth was inhibited by OM of 100 ppm. BcS of 0.5-1.0 ppm and 2-TU of 25-50 ppm reduced the severity of symptoms and decreased the virus concentration without apparent toxicities to the plants. Methods for reducing the phytotoxicity, caused by these chemicals were tested. It was found that manganese ion, when mixed with BcS or OM, reduced the toxicity due to the antibiotics, especia11y as judged by a recovery from the retarded root growth. Manganese did not affect so much the virus-1nhibition by BcS.
日本植物病理学会の論文
1968-02-29