沖永良部島のテッポウユリ「ひのもと」の茎に発生した赤すじ症状の発生実態調査と血清学的検討
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概要
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In 2001, a new symptom was observed on the stem of Japanese Easter lily (<I>Lilium longiflorum</I> Thunb. " Hinomoto" ), which was characterized by reddish-brown streaks (" aka-suji" in Japanese) in Okinoerabu Island, Kagoshima Prefecture, Japan. It seemed that first chlorotic stripes (" shiro- suji" in Japanese) appeared and these later turned reddish-brown when the lily approached the flowering stage in the seasonal cycle. Double-antibody sandwich enzyme-linked immunosorbent assay (DAS-ELISA) detected <I>Cucumber mosaic virus</I> (CMV) and <I>Lily symptomless virus</I> (LSV) in lily with reddish-brown streaks. However, these 2 viruses were also detected in symptomless lily plants, indicating that additional factors might exist that induce the symptom. Further, we determined that the reddish-brown streaks were transmitted by the vegetative propagation of lilies. Taken together, these results suggested a viral etiology of the reddish-brown streaks.
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