Title

外源亚精胺对盐胁迫下小麦幼苗生长的影响

Translated Titles

Effects of Exogenous Spermdine on Growth of Wheat (Triticum aestivum L.) Seedlings under NaCl Stress

Authors

李翠香(Cui-Xiang Li);刘利芬;伊艳杰;翟会书

Key Words

小麦 ; NaCl胁迫 ; 亚精胺 ; Wheat ; NaCl stress ; Spermidine

PublicationName

安徽農業科學

Volume or Term/Year and Month of Publication

39卷4期(2011 / 02 / 01)

Page #

1978 - 1979+1999

Content Language

簡體中文

Chinese Abstract

[目的]为了解亚精胺是否能缓解盐胁迫对小麦幼苗生长的影响。[方法]采用滤纸培养法,研究了外源亚精胺(Spd)对NaCl胁迫下小麦幼苗生长和部分生理指标的影响。[结果]与对照相比,盐胁迫抑制了小麦幼苗的生长,增加了小麦中SOD、POD活性和MDA含量,降低了可溶性蛋白质含量。亚精胺处理明显促进了小麦幼苗的生长,提高了幼苗中SOD和POD活性,降低了MDA含量,提高了可溶性蛋白质含量。[结论]亚精胺能缓解盐胁迫对小麦幼苗的毒害作用,提高小麦幼苗的抗盐能力,但随处理时间的延长,亚精胺的缓解作用有所下降。

English Abstract

[Objective] The research aimed to study whether spermidine (Spd) could relieve salt stress on wheat seedling. [Method] The seedlings growth and some physiological indices were determined under exogenous spermidine and NaCl stress by means of filter paper culturing methed. [Result] NaCl stress restrained the growth of seedlings, enhanced SOD and POD activity, increased MDA content, and decreased the amount of soluble proteins. Spermidine apparently promoted the growth of wheat seedlings and raised SOD and POD activities and soluble protein content, but decreased the content of MDA in seedlings compared with the control. [Conclusion] The spermidine could relieve the impairment of NaCl stress in wheat seedlings, thus enhance its tolerance to NaCl. However, the relief effect of spermidine decreased as the treatment lime prolonged.

Topic Category 生物農學 > 農業
生物農學 > 森林
生物農學 > 畜牧
生物農學 > 漁業