Boege F, Rohde W, Sänger H L
Biosci Rep. 1982 Mar;2(3):185-94. doi: 10.1007/BF01116382.
RNA-dependent RNA polymerase from healthy tomato plant tissue accepts potato spindle tuber viroid (PSTV) RNA as a template for the in vitro synthesis of full-length RNA copies of the PSTV genome. Viroid transcription requires the presence of Mn2+ and /or Mg2+ ions and is not inhibited by concentrations of 10(-5) M alpha-amanitin. This is the first report of a well-defined product synthesized in vitro by an RNA-dependent RNA polymerase from healthy plants.
来自健康番茄植株组织的RNA依赖性RNA聚合酶能够接受马铃薯纺锤块茎类病毒(PSTV)RNA作为模板,用于体外合成PSTV基因组的全长RNA拷贝。类病毒转录需要存在Mn2+和/或Mg2+离子,并且不受10(-5)M浓度的α-鹅膏蕈碱的抑制。这是关于健康植物来源的RNA依赖性RNA聚合酶在体外合成明确产物的首次报道。