Abstract

Potato spindle tuber viroid (PSTVd; genus Pospiviroid) was detected from pepper (Capsicum annuum) seeds produced in Vietnam during an export inspection. The PSTVd isolate (PSTVd-VN) maintained its viability. The phylogenetic relationship between PSTVd-VN and other PSTVd variants that were isolated from other plants and was classified into lethal and severe strains. PSTVd-VN in tomatoes (cv. Rutgers) caused severe stunting and necrosis of the stems and leaf veins, but no symptoms in inoculated pepper plants except that the fruits were smaller than the control peppers. To our knowledge, this is the first report of PSTVd from pepper seeds produced in Vietnam.

中文翻译：

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首次报道从越南生产的辣椒种子中分离出马铃薯纺锤块茎类病毒

摘要

在一次出口检查中，从越​​南生产的辣椒（ Capsicum annuum ）种子中检出马铃薯纺锤块茎类病毒（PSTVd；Pospiviroid属）。 PSTVd 分离株 (PSTVd-VN) 保持了其活力。 PSTVd-VN 与从其他植物中分离并分为致死株和严重株的其他 PSTVd 变体之间的系统发育关系。西红柿（cv. Rutgers）中的 PSTVd-VN 会导致茎和叶脉严重发育迟缓和坏死，但接种的辣椒植物中没有任何症状，只是果实比对照辣椒小。据我们所知，这是越南生产的辣椒种子中首次报告 PSTVd。