核果類のウイルス病に関する研究 : 第1報 Peach necrotic ringspot virus および Prune dwarf virus の検出

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Sap transmissible viruses were isolated from peach var. Nakayamakinto and sour cherry var. Montmorency provisiona11y laveled isolate-1 and -2. When buds from Nakayamakinto were used to infect the seeed1ings of PrunuS species, they induced necrotic ringspot in Mazzard, no symptom in mahaleb, top necrosis of young shoots in flowering cherry var. Magofugen and necrosis and gummosis in var. Shirofugen. Iso1ate-1 caused chlorotic ringspot and top necrosis in cucumber, Ch1orotic ringspot on inoculated leaves but not infected systemica11y in squash, vein necrosis on inoculated leaves and necrotic stem streak in asparagus bean and 1ocal ch1orotic spot and mottle in Chenopodium amaranticolor. This isolate had a therma1 inactivation point of 50-55℃, a d11ution end point between 1/100 and 1/500 and 1ongevity was 7-10h ours. In the case that Montmorency was used for inoculum to seed1ings of Prunus species it caused dwarf in mahaleb, necrosis and gummosis in Shirofugen and no symptom in Mazzard and Magofugen. When iso1ate-2 was used for inoculum, cucumber reacted with mild chlorotic spot on inoculated cotyledons and with mosaic and marformation on young leaves. Squash, tobacco and zinnia were systemica11y infected with isolate-2 and produced bright ye11ow vein banding and mosaic on squash and ch1orotic ring or mottle on tobacco and zinnia. The therma1 inactivation point of isolate-2 was 45-50℃, dilution end point was between 1/50 and 1/100 and 1ongevity was 4-5 hours. On the basis of these host ranges, symptomato1ogy and physical properties isolate-1 was identified as peach necrotic ringspot virus (NRSV) and isolate-2 was identified as prune dwarf virus (PDV).
日本植物病理学会の論文
1968-02-29

核果類のウイルス病に関する研究 : 第1報 Peach necrotic ringspot virus および Prune dwarf virus の検出

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