温度对芥蓝幼苗叶片内源多胺含量的影响  

Effect of Temperature on Endogenous Polyamines Content of leaves in Chinese Kale ( Brassica alboglabra Bailey) Seedlings

作　　者：杨运英[1] 杨暹[2] 

机构地区：[1]广东省农业管理干部学院生物技术系,广东广州510640 [2]华南农业大学园艺学院,广东广州510642

出　　处：《华南农业大学学报》2002年第3期9-12,共4页Journal of South China Agricultural University

摘　　要：以中花芥蓝为材料 ,设置 4个不同温度处理研究了温度对芥蓝多胺含量的影响 .结果表明 ,多胺与芥蓝幼苗的生长发育有密切的关系 ,在温度处理过程中 (0～ 12d) ,不同温度处理的幼苗生长发育过程中 ,叶片多胺 (PAs)总量和精胺 (Spm)、亚精胺 (Spd)、腐胺 (Put)含量都表现为先上升后下降的单峰曲线变化 ,并都在温度处理的第 9d达到峰值 .温度明显地影响着芥蓝叶片多胺的合成 .短期 (0～ 6d)的温度处理 ,高温可促进叶片PAs、Put含量的增加 ;而随着温度处理时间的延长 ,适宜的温度有利于PAs、Put的合成 ,而过高温度则抑制其形成 .在温度处理过程中 ,低温可促进Spm的合成 。The effects of four different temperature treatments(18℃/12℃, 24℃/18℃, 30℃/24℃, 36℃/30℃) on endogenous polyamines content of leaves were studied in Chinese Kale ( Brassica alboglabra Bailey) seedlings. The results showed that the endogenous polyamines were closely related to the growth and development of plant. With the growth and development of seedling during the treatment of temperature(0～12 d), the total polyamines (PAs), spermine (Spm), spermidine (Spd) and putrescine (Put) content increased gradually, and reached a high peak at 9 days of temperature treatment, then decreased gradually. Temperature distinctly influenced the synthesis of polyamines, high temperature could promote PAs and Put content within a short period of temperature treatment (0～6 d), but high temperature treatment could inhibit the synthesis of PAs and Put with prolongation of temperature treatment. During temperature treatment, low temperature could enhance the synthesis of Spm, while high temperature was beneficial to the increase of Spd content.

关 键 词：温度 芥蓝 幼苗 叶片 内源多胺 含量 

分 类 号：S635.9[农业科学—蔬菜学]