Physiological responses and adaptive strategies of wheat seedlings to salt and alkali stresses

被引：22

作者：

Li, Xiaoyu ^{[1
]}

Liu, Jiaju ^{[1
]}

Zhang, Yuting ^{[2
]}

Lin, Jixiang ^{[1
]}

Mu, Chunsheng ^{[1
]}

机构：

[1] NE Normal Univ, Inst Grassland Sci, Minist Educ, Key Lab Vegetat Ecol, Changchun 130024, Jilin Province, Peoples R China

[2] NE Normal Univ, Sch Life Sci, Changchun 130024, Jilin Province, Peoples R China

来源：

SOIL SCIENCE AND PLANT NUTRITION | 2009年 / 55卷 / 05期

基金：

国科技部“十一五”科技计划项目;

关键词：

alkali stress; salt stress; physiological mechanisms; wheat seedling; OSMOTIC ADJUSTMENT; GROWTH; TOLERANCE; SALINITY; PROLINE; BALANCE;

D O I：

10.1111/j.1747-0765.2009.00408.x

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Effects of salt (NaCl : Na2SO4) and alkali (NaHCO3 : Na2CO3) stresses on the contents of inorganic ions and organic solutes in wheat shoots were compared to explore the physiological responses and adaptive strategies of wheat to these stresses. Wheat significantly accumulated Na+ and simultaneously accumulated Cl-, soluble sugars and proline to maintain osmotic and ionic balance under salt stress. Compared with salt stress, the high pH from alkali stress enhanced Na+ accumulation and affected the absorption of inorganic anions. To maintain ionic and osmotic balance, wheat accumulated organic acids, soluble sugars and proline. The accumulation of Cl- and organic acids was the main difference in the physiological responses and adaptive mechanisms to salt and alkali stresses, respectively.

引用

页码：680 / 684

页数：5

共 18 条

[1] Roles of glycine betaine and proline in improving plant abiotic stress resistance [J].