电离輻射对机体的损伤效应問题,近年来国內外放射生物学家作了很多研究和論述。其中认为关键性变化是脫氧核糖核酸(DNA)或核糖核酸(RNA)結构的改变及其代謝的紊乱。1961年Stacey归納了DNA代謝的輻射損伤是由于合成DNA酶系的被抑制,或DNA模板(Primer)分子的改变。由于DNP在机体內不是单独存在,一般是与蛋白质结合,以DNA的形式存在。为了能更确切的現察輻射对植物DNA的原发作用机 Ionizing radiation on the body of the damage effect in recent years, radiologists at home and abroad made a lot of research and discussion. Among them, it is considered that the key change is the change of the structure of DNA or RNA and the metabolic disorder thereof. 1961 Stacey concludes that radiation damage to DNA metabolism is due to inhibition of the synthesis of DNA enzymes or alteration of DNA molecules (Primer) molecules. Because DNP is not alone in the body, it is usually bound to proteins and exists in the form of DNA. In order to more accurately detect the radiation on the primary role of plant DNA machine