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Author:
Date:
2016-10-05
[Abstract] In plant cells, genomic DNA exists in three organelles: the nucleus, chloroplast, and mitochondrion. Genomic DNA can be damaged by endogenous and exogenous factors, but the damaged DNA can be repaired by DNA repair systems. To quantify the extent of their repair activity of on individual genomic DNA, a PCR-based assay utilizing long amplicons is valuable for evaluable. This assay is based on the inhibitory effects of methyl methanesulfonate (MMS)-induced DNA damage on the amplicons. This assay is useful for assessing DNA double-strand repair pathways, such as homologous recombination repair, ...
[摘要] 在植物细胞中，基因组DNA存在于三个细胞器中：核，叶绿体和线粒体。基因组DNA可以被内源和外源因子损伤，但损伤的DNA可以通过DNA修复系统修复。为了量化其对单个基因组DNA的修复活性的程度，使用长扩增子的基于PCR的测定对于可评价是有价值的。该测定基于甲磺酸甲酯（MMS）诱导的DNA损伤对扩增子的抑制作用。该测定可用于评估DNA双链修复途径，例如同源重组修复，因为其检测由MMS在体内产生的DNA双链断裂。
[背景] 基因组DNA损伤的定量可用于分析DNA修复机制。该测定利用实时PCR定量核，叶绿体和线粒体DNA拷贝数以用于长PCR产物的标准化，与由Hunter等人先前的方案相比提供更准确的定量。 （2010）。
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