モモアカアブラムシに依るダイコンモザイク病の媒介

概要

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An investigation was made to determine the conditions for Transmission of the mosaic virus of Japanese radish by its vector, Myzus persicae SULZ. Single non-viruliferous aphids acquired the virus in a time of 5 minutes feeding on the mosaic plants, and viruliferous aphids caused infection of healthy plants by feeding for 5 minutes. The aphids were able to acquire and transmit mosaic virus within as short a period as 30 minuts. Therefore, it seems improbable that the virus can have incubation period in its vector. The aphids retained the ability to transmit the virus for 3 hours when held in vitro after removal from diseased plants, but lost after 5 hours. This period is in accord with the length of time the virus is destroyed by dying. Viruliferous aphids ceased to be infective within 30 minutes feeding oh healthy plants or within l hour feeing on immune plant (tobacco). When the aphids were previously starved for 1 hour, fed for 5 minutes on the source of virus and then transferred immediately to the healthy plants, the efficiency of vector was much increased. Inoculations with the extract of macerated aphids collected from mosaic plants failed to cause infection. No evidence of any direct transmission of the virus from viruliferous parent aphids to their progeny was obtained. The evidence mentioned above indicates that the mosaic virus of Japanese radish in question falls under the so-called non-persistent virus.
日本植物病理学会の論文
1950-12-25

著者

葛西武雄
東京大學農學部

モモアカアブラムシに依るダイコンモザイク病の媒介

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概要

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