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首页> 外文期刊>Israel Journal of Plant Sciences >Hazards of a germinating seed: Available water and the maintenance ofgenomic integrity
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Hazards of a germinating seed: Available water and the maintenance ofgenomic integrity

机译:发芽种子的危害:可用水和维持基因组完整性

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摘要

Embryos of seeds die at different rates under different conditions. The amount of water they receive determines the extent of cell hydration, and this in turn determines the pattern of degradation of genomic DNA whether by DNase nucleosome cleavage or by random fragmentation. Progress of the first cell cycle to the first mitotic divisions is dictated by water availability in accelerated aged and primed seeds. The loss of desiccation tolerance at the border of G(2)M and cytokinesis is discussed in relation to nucleases, DNA conformation, DNA damage, and stages of arrest in the first cell cycle.
机译:种子的胚在不同条件下以不同的速率死亡。他们接受的水量决定了细胞水合的程度,而这反过来又决定了基因组DNA降解的模式,无论是通过DNase核小体裂解还是通过随机片段化。从第一个细胞周期到第一个有丝分裂分裂的进程是由加速老化和引发的种子中的水可用性决定的。 G(2)M和细胞分裂的边界上的干燥耐性的损失与核酸酶,DNA构象,DNA损伤和第一个细胞周期的停滞阶段有关。

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