...Cucumber mosaic virus, potato Y virus, and other viruses are transmitted by aphids through a short period of sucking, but the time the virus is retained within the insect's body is short. Many rice viral diseases are transmitted by leafhoppers or planthoppers, and in the case of rice dwarf disease, when leafhoppers suck sap from diseased plants, the virus multiplies within the insect cells, and the insect continues to transmit the virus for the rest of its life. Furthermore, if female insects are virucidal, the virus is transmitted to the larvae at a high rate through the eggs, which is called transovarial transmission. ... *Some of the terminology that refers to "rice dwarf disease" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…キュウリモザイクウイルス,ジャガイモYウイルスなどはアブラムシの短時間の吸汁で伝染するが,虫体内でウイルスが保持される時間は短い。イネのウイルス病にはヨコバイまたはウンカで媒介されるものが多く,イネ萎縮病ではヨコバイが病植物を吸汁するとウイルスが昆虫細胞内で増殖し,その虫は終生伝染を続ける。さらに,雌虫が保毒すると卵を通して子虫へ高率にウイルスが伝染するが,これを経卵伝染という。… ※「イネ萎縮病」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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