PRELIMINARY STUDIES ON THE BIOLOGICAL EFFECTS OF WHEAT SEEDS IMPLANTED AND PENETRATED BY NITROGEN ION BEAMS

Li Wenjian; Wei Zengquan; Xie Hongmei; Li Qiang; Han Guangwu; Dang Bingrong; Zhou Guangming; Yang Hanmin; Wang Lihong; Gao Qingxiang

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PRELIMINARY STUDIES ON THE BIOLOGICAL EFFECTS OF WHEAT SEEDS IMPLANTED AND PENETRATED BY NITROGEN ION BEAMS

更新时间：2023-04-23

- PRELIMINARY STUDIES ON THE BIOLOGICAL EFFECTS OF WHEAT SEEDS IMPLANTED AND PENETRATED BY NITROGEN ION BEAMS
- Journal of Radiation Research and Radiation Processing Vol. 13, Issue 3, Pages: 167-169,166(1995)
- 作者机构：
  
  1.中国科学院近代物理研究所，兰州　730000
  2.兰州大学生物系，兰州　730000
- 作者简介：
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Li Wenjian, Wei Zengquan, Xie Hongmei, et al. PRELIMINARY STUDIES ON THE BIOLOGICAL EFFECTS OF WHEAT SEEDS IMPLANTED AND PENETRATED BY NITROGEN ION BEAMS. [J]. Journal of Radiation Research and Radiation Processing 13(3):167-169,166(1995)
DOI：

Li Wenjian, Wei Zengquan, Xie Hongmei, et al. PRELIMINARY STUDIES ON THE BIOLOGICAL EFFECTS OF WHEAT SEEDS IMPLANTED AND PENETRATED BY NITROGEN ION BEAMS. [J]. Journal of Radiation Research and Radiation Processing 13(3):167-169,166(1995) DOI：

摘要

采用47.9 MeV/u和20.4 MeV/u ,14,N,7+,离子束对小麦种子进行生物学效应研究。结果表明：1)重离子的贯穿和注入对小麦种子的生长势均有明显的抑制作用，剂量越大，抑制作用越强，而且注入作用高于贯穿，2)在种子的根尖细胞中出现的染色体畸变具有多种类型，畸变频率高于对照组198～592倍，而且注入比贯穿作用强；3)注入和贯穿处理两者同样有明显的诱变作用，可引起DNA的损伤和修复。

Abstract

The biological effects of wheat seeds irradiated by 47.9 MeV/u and 20.4 MeV/u ,14,N,+7, ion beams were studied respectively.The results showed: (1)The heavy ions of both penetration and implantation can all significantly inhibit growing power of wheat seeds. The greater dose is, the greater growing power is inhibited, and implantation influence on growing power is stronger than penetration.(2) In root tip cells of irradiated seeds, a great variety of chromosomal aberrations were observed, the aberration frequencies were several hundred times higher than that of the corresponding controls and the implantation surpasses the penetration.(3) The seeds treated by implantation and penetration have same evident effect of mutation and can induce DNA damage and repair.

关键词

氮离子束注入贯穿生长势损伤和修复DNA染色体畸变

Keywords

Nitrogen ion beamPenetrationImplantationGrowing powerDamage and repairDNAChromosomal aberration

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