| GA3对辽东楤木种子解除休眠中信号分子变化的影响 |
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| 引用本文： | 李宏博,刘延吉,李天来.GA3对辽东楤木种子解除休眠中信号分子变化的影响[J].园艺学报,2006,33(2):414-416. |
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| 作者姓名： | 李宏博 刘延吉 李天来 |
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| 作者单位： | (沈阳农业大学园艺学院, 沈阳110161; 沈阳农业大学生物技术学院, 沈阳110161) |
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| 基金项目： | 辽宁省教育厅科技攻关项目(05L341)，国家高新技术研究发展计划(863计划)项目(2004AA247010) |
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| 摘 要： | 研究了GA3 对辽东楤木种子在变温(每天高温13～15℃ 12 h, 低温0～4℃ 12 h) 层积条件下解除休眠过程中部分信号分子变化的影响。结果表明: 200 mg/L的GA3 丙酮溶液可以极显著促进辽东楤木种子萌发; 显著降低种子内源ABA 含量; 显著提高种子内源GA 含量、CaM含量和NADKase、质膜Ca2 + -ATPase活性, 从而说明了信号分子参与并调节了辽东 木种子休眠解除这一过程。
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| 关 键 词： | 辽东楤木 种子休眠 GA3 变温层积 信号分子 |
| 文章编号： | 0513-353X（2006）02-0414-03 |
| 收稿时间： | 2005-04-18 |
| 修稿时间： | 2005-04-182005-07-08 |
The Effect of GA3 on the Relatived Signal Molecule Changes during the Breaking Dormancy in Aralia elata Seed |
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| Li Hongbo,Liu Yanji,Li Tianlai.The Effect of GA3 on the Relatived Signal Molecule Changes during the Breaking Dormancy in Aralia elata Seed[J].Acta Horticulturae Sinica,2006,33(2):414-416. |
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| Authors: | Li Hongbo Liu Yanji Li Tianlai |
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| Institution: | ( College of Horticulture, Shenyang Agricultural University, Shenyang 110161, China; College of Bio-Technology, Shenyang Agricultural University, Shenyang 110161, China) |
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| Abstract: | Under alternating temperature stratification ( high temperature 13 - 15℃ 12 h everyday and low temperature 0 - 4℃ 12 h everyday) condition, the effect of GA3 on the change of partial signal molecule was studied during the process of breaking dormancy in Aralia elata seed. The resultswere as following: 200 mg/L GA3 of acetone solution significantly p romoted germination rate of Aralia elata seed, decreased the content of the ABA, and increased the content of the endogenous GA3 and CaM, meanwhile, improved activity of the NADKase and PM Ca2 + -ATPase evidently. It can be concluded that signal molecule participated in and regulated the course of the breaking dormancy in A ralia elata seed. |
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| Keywords: | Aralia elata Seed dormancy GA3 Alternating temperature stratification Signal molecule |
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