Low dose radiation induced adaptive response upon salt stress and vacuum stress:a possible mechanism for the effect of saddle-like dose response curve

SONG Le1 HAN Rongfei2 XU Xue1 LIU Binmei1 XU Hongqing3 ZHANG Ying4 WU Yuejin1 1

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Low dose radiation induced adaptive response upon salt stress and vacuum stress:a possible mechanism for the effect of saddle-like dose response curve

更新时间：2021-03-05

- Low dose radiation induced adaptive response upon salt stress and vacuum stress:a possible mechanism for the effect of saddle-like dose response curve
- NUCLEAR TECHNIQUES Vol. 34, Issue 10, (2011)
- 作者机构：
  
  1. 中国科学院离子束生物工程学重点实验室
  2. 武汉大学基础医学院免疫系
  3. 安徽省农业科学院原子能农业应用研究所
  4. 安徽省农业科学院水稻研究所
- 作者简介：
- 基金信息：
  
  中科院方向性项目(KJCX2-YW-N34KJCX2-EW-N05);中国科学院知识创新工程青年人才领域前沿项目(085FCQ0126);国家转基因重大科技专项(2009ZX08009-105B);国家自然科学基金(10975153);安徽省自然科学基金(11040606Q58)资助
- DOI：
  CLC： S124;S511
- Published：01 October 2011
- 稿件说明：
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[1]宋乐,韩荣飞,许学,刘斌美,徐宏青,张瑛,吴跃进.马鞍型剂量-效应曲线的可能机制:水稻种子低剂量辐照后的盐胁迫和真空胁迫的适应性反应[J].核技术,2011,34(10):745-749.

SONG Le1 HAN Rongfei2 XU Xue1 LIU Binmei1 XU Hongqing3 ZHANG Ying4 WU Yuejin1 1. Low dose radiation induced adaptive response upon salt stress and vacuum stress:a possible mechanism for the effect of saddle-like dose response curve[J]. Nuclear techniques, 2011, 34(10): 745-749.
[1]宋乐,韩荣飞,许学,刘斌美,徐宏青,张瑛,吴跃进.马鞍型剂量-效应曲线的可能机制:水稻种子低剂量辐照后的盐胁迫和真空胁迫的适应性反应[J].核技术,2011,34(10):745-749. DOI：

SONG Le1 HAN Rongfei2 XU Xue1 LIU Binmei1 XU Hongqing3 ZHANG Ying4 WU Yuejin1 1. Low dose radiation induced adaptive response upon salt stress and vacuum stress:a possible mechanism for the effect of saddle-like dose response curve[J]. Nuclear techniques, 2011, 34(10): 745-749. DOI：

摘要

为探讨马鞍型剂量效应曲线的形成机制

研究了盐胁迫、真空胁迫处理对低剂量辐照诱导效应的影响。利用不同剂量的γ射线（60、90、120、150、210、282、423和560 Gy）辐照水稻种子后

以苗高为辐射损伤的生物学终点

调查γ射线辐照种子经真空处理和不同浓度的NaCl胁迫处理的损伤情况

利用Origin 8.0软件对剂量-苗高数据进行线性拟合;结果表明:低剂量辐照既能诱导对真空胁迫、盐胁迫的适应性反应

同时又和真空胁迫、盐胁迫具有协同抑制水稻苗高的作用

获得的剂量-苗高曲线为马鞍型的形状。低剂量辐照加上环境因子胁迫

对水稻种子产生的适应性反应可能是马鞍型剂量-效应曲线的形成机制。

Abstract

To explore mechanism for the effect of saddle-like dose-response curve

the relationship of irradiation-vacuum stress

and irradiation-salt stress

was investigated with rice seeds irradiated to 60–560 Gy by 60Co γ-rays.The dose-response curve was simulated based on seedling height data

which showed obedient to linear-quadratic model.During germination

the irradiated rice seeds were stressed by 10–3 Pa vacuum

or by NaCl in different concentrations.After that

the dose-response curve manifested a saddle-like shape.The results indicate that while low dose irradiation could retard seedling growth synergistically with vacuum stress and salt stress

it could also induce adaptive response upon vacuum stress and salt stress.Low dose irradiation induced adaptive response upon environmental adverse factors could contribute to the mechanism for the effect of saddle-like dose-response curve.

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