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通过系统综述有关高等植物辐射敏感性研究的文献报道,归纳出了植物辐射敏感性研究的一般结论:不同种类的植物之间、同种植物的不同品种之间以及同一植物的不同组织、器官之间的辐射敏感性均存在明显差异;引起植物种间辐射敏感性差异的内在原因主要有细胞核体积、染色体体积、DNA含量、内生保护剂,而品种间的辐射敏感性差异与DNA损伤的自身修复力和一些生物分子的化学基因(如蛋白质分子的巯基-SH等)有关;水分、氧气、温度以及辐射保护剂和敏化剂是影响植物辐射敏感性的几个重要的外界因素。多靶模型和Chadwich-Leenhouts模型是两个较为理想的定量描述植物辐射敏感性的数学模型,但后者具有更明确的生物学意义。
Through systematically reviewing the literatures about the radiation sensitivity of higher plants, the general conclusion about the radiation sensitivity of plants has been summed up: different types of plants, different varieties of the same plants and different tissues and organs of the same plant There were significant differences in the radiosensitivity between the two species. The intrinsic causes of differences in interspecies radionuclide sensitivity were mainly the nucleus size, chromosome volume, DNA content and endogenous protective agents, while the differences in the radiation sensitivity between varieties and the DNA damage themselves Regeneration is related to the chemical genes of some biomolecules such as thiol-SH of protein molecules. Moisture, oxygen, temperature, and radioprotective agents and sensitizers are several important external factors that affect plant radiation sensitivity. The multi-target model and the Chadwich-Leenhouts model are two ideal mathematical models for quantitatively describing the radiation sensitivity of plants, but the latter have more definite biological significance.