The effects of <sup>60</sup>Co γ-rays irradiation on growth and physiological characteristics of adventitious bud of oriental lily

HUANG Haitao; WANG Dan; ZHOU Lijuan; ZHAO Xue

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The effects of ⁶⁰Co γ-rays irradiation on growth and physiological characteristics of adventitious bud of oriental lily

更新时间：2023-03-30

- The effects of ⁶⁰Co γ-rays irradiation on growth and physiological characteristics of adventitious bud of oriental lily
- Journal of Radiation Research and Radiation Processing Vol. 26, Issue 1, Pages: 23-27(2008)
- 作者机构：
  
  1.西南科技大学生命科学与工程学院　绵阳　621000
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HUANG Haitao, WANG Dan, ZHOU Lijuan, et al. The effects of ⁶⁰Co γ-rays irradiation on growth and physiological characteristics of adventitious bud of oriental lily. [J]. Journal of Radiation Research and Radiation Processing 26(1):23-27(2008)
DOI：

HUANG Haitao, WANG Dan, ZHOU Lijuan, et al. The effects of ⁶⁰Co γ-rays irradiation on growth and physiological characteristics of adventitious bud of oriental lily. [J]. Journal of Radiation Research and Radiation Processing 26(1):23-27(2008) DOI：

摘要

用,60,Co γ射线以不同辐照剂量(0、0.5、1.0、2.0、4.0、6.0和8.0Gy) 对东方百合索邦(Sorbonne)的离体不定芽进行辐照处理，研究辐照对东方百合不定芽生长及生理影响效应。结果表明：随着辐照剂量的增加，东方百合不定芽的丙二醛 (Malondialdehyde，MDA)含量、细胞膜渗透性呈上升趋势；辐照剂量≥2.0Gy百合不定芽的超氧阴离子(Superoxide anion，O,2,-,)含量和过氧化氢酶(Catalase，CAT)活性高于对照，出芽率小于对照；辐照剂量≥4.0Gy百合芽高的增量小于对照。说明,60,Co γ射线辐照对东方百合不定芽的生长有抑制作用。通过综合考虑分析，试验推测,60,Co γ射线处理东方百合索邦(Sorbonne)组培不定芽的适宜辐照剂量在2.0～4.0Gy之间，其半致死剂量为4.0～6.0Gy。

Abstract

The adventitious buds of orential lily "Sorbonne" were treated with ,60,Co γ-rays at doses of 0, 0.5, 1.0, 2.0, 4.0, 6.0 and 8.0Gy respectively. Effects of ,60,Co γ-rays irradiation at different doses on growth and physiological characteristics of adventitious bud of oriental lily have been studied. With the increase of irradiation dose, MDA content and plasmalemma permeability in adventitious bud of oriental lily increases. Superoxide anion (O,2,-,) content and catalase (CAT) activity in adventitious bud of oriental lilies which are treated at doses of 2.0, 4.0, 6.0 and 8.0Gy is higher than that in the control group, and germination rates are less than that of the control group. The increment of height of buds which are treated at doses of 4.0, 6.0 and 8.0Gy respectively is less than that of the control group. The results show that ,60,Co γ-rays irradiation has the inhibiting effect on the growth of adventitious bud of oriental lily. It can be concluded that the optimum irradiation dose range is from 2.0Gy to 4.0Gy, and LD,50, range is from 4.0Gy to 6.0Gy.

关键词

60Co γ射线东方百合辐照不定芽生长

Keywords

60Co γ-raysOriental lilyIrradiationAdventitious budGrowth

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The effects of 60Co γ-rays irradiation on growth and physiological characteristics of adventitious bud of oriental lily

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摘要

Abstract

关键词

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The effects of ⁶⁰Co γ-rays irradiation on growth and physiological characteristics of adventitious bud of oriental lily