GA3对辽东楤木种子解除休眠中信号分子变化的影响

园艺学报 ›› 2006, Vol. 33 ›› Issue (2): 414-416.

GA₃对辽东楤木种子解除休眠中信号分子变化的影响

李宏博¹;刘延吉²;李天来^1*

(¹沈阳农业大学园艺学院, 沈阳110161; ²沈阳农业大学生物技术学院, 沈阳110161)

收稿日期:2005-04-18 修回日期:2005-07-08 出版日期:2006-04-25 发布日期:2006-04-25

The Effect of GA₃on the Relatived Signal Molecule Changes during the Breaking Dormancy in Aralia elata Seed

Li Hongbo¹;Liu Yanji²;Li Tianlai^1*

(¹ College of Horticulture, Shenyang Agricultural University, Shenyang 110161, China; ²College of Bio-Technology, Shenyang Agricultural University, Shenyang 110161, China)

Received:2005-04-18 Revised:2005-07-08 Online:2006-04-25 Published:2006-04-25

摘要/Abstract

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Ca^{2 +}-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。

关键词: 辽东楤木, 种子休眠, GA₃, 变温层积, 信号分子

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 Ca^{2 +} -ATPase evidently. It can be concluded that signal molecule participated in and regulated the course of the breaking dormancy in A ralia elata seed.

Key words: Aralia elata, Seed dormancy, GA₃, Alternating temperature stratification, Signal molecule

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.

Li Hongbo;Liu Yanji;Li Tianlai. The Effect of GA₃on 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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GA₃对辽东楤木种子解除休眠中信号分子变化的影响

The Effect of GA₃on the Relatived Signal Molecule Changes during the Breaking Dormancy in Aralia elata Seed

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