INFLUENCE OF IRRADIATION AND Caf EDTA ON THE METABOLISM OF NUCLEUS ACID OF THE DIFFERENT RADIOSENSITIVE CROPS

Song Daojun; Xu Dengyi; Wan Zhaoliang; He Shoulin

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INFLUENCE OF IRRADIATION AND Caf EDTA ON THE METABOLISM OF NUCLEUS ACID OF THE DIFFERENT RADIOSENSITIVE CROPS

更新时间：2024-11-05

- INFLUENCE OF IRRADIATION AND Caf EDTA ON THE METABOLISM OF NUCLEUS ACID OF THE DIFFERENT RADIOSENSITIVE CROPS
- Journal of Radiation Research and Radiation Processing Vol. 15, Issue 4, Pages: 233-237(1997)
- 作者机构：
  
  1.中国科学院等离子体物理研究所生物工程中心　合肥　230031
  2.西南农业大学中心实验室　重庆　630716
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：1997-11，
  
  Received：24 September 1996，
  
  Revised：02 December 1996，
- 稿件说明：
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Song Daojun, Xu Dengyi, Wan Zhaoliang, et al. INFLUENCE OF IRRADIATION AND Caf EDTA ON THE METABOLISM OF NUCLEUS ACID OF THE DIFFERENT RADIOSENSITIVE CROPS. [J]. Journal of Radiation Research and Radiation Processing, 1997,15(4):233-237.
DOI：

Song Daojun, Xu Dengyi, Wan Zhaoliang, et al. INFLUENCE OF IRRADIATION AND Caf EDTA ON THE METABOLISM OF NUCLEUS ACID OF THE DIFFERENT RADIOSENSITIVE CROPS. [J]. Journal of Radiation Research and Radiation Processing, 1997,15(4):233-237. DOI：

摘要

研究了辐射损伤修复抑制剂咖啡因和EDTA（乙二胺四乙酸二钠盐）后处理对不同辐射敏感性作物大豆和油菜的核酸代谢的影响。结果表明，随着辐射剂量的增大，辐射敏感的大豆和耐辐射的油菜7d龄幼苗下胚轴内DNA和RNA的含量有所增加，咖啡因和EDTA后处理又进一步提高了两种作物核酸的含量；大豆幼苗内DNA、RNA的含量均高于油菜。放射性

H-TdR（

H-胸腺嘧啶核苷）掺入试验证明，种子辐照后的浸种24h内有非按期的DNA含成，且油菜的非按期DNA合成能力强于大豆，咖啡因和EDTA及复合后处理不同程度的抑制了DNA的非按期合成，其抑制程度为C+E（咖啡因＋乙二胺四乙酸二钠盐）

Caf（咖啡因）

EDTA

试验还证实了辐射与咖啡因和EDTA后处理抑制了正常的DNA合成，延迟细胞分裂周期，且辐照剂量越大，抑制和延迟作用越强。

Abstract

Irradiation and damage repair inhibitor (Caf and EDTA) post-treatment had a sub-stantial effect on DNA and RNA content and DNA self-repairing synthesis. The experiment results showed the content of DNA and RNA increased with increase doses in the seedling hypocotyl of soybean and rape

Caf and EDTA post-treatment made them further higher than that of H

O-treatment. Meanwhile

the content of DNA and RNA in hypocotyl of soybean seedling was more than that of rape. Radioactive

H-TdR incorporation experiment showed γ-ray irradiated seeds induced unschuled DNA synthesis in the primary cultivated seeds of two crops

which was inhibited by Caf

EDTA and C+E post-treatment in the order of C+E

Caf

EDTA. Experiment also revealed irradiation and repair repressor posttreatment affected normal schuled DNA synthesis

postponed the cycle of cell division.

关键词

辐射损伤修复抑制剂作物辐射敏感性DNA合成咖啡因EDTA

Keywords

Radiation damage repair inhibitorCropRadiosensitivityDNA synthesisCaffeineEDTA

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