Physiological significance of proline and glycinebetaine: Maintaining photosynthesis during NaCl stress in wheat

被引：52

作者：

Rajasekaran, LR ^{[1
]}

Kriedemann, PE

Aspinall, D

Paleg, LG

机构：

[1] Univ Adelaide, Waite Agr Res Inst, Dept Plant Physiol, Glen Osmond, SA 5064, Australia

[2] Univ Toronto, Fac Forestry, Toronto, ON M5S 3B3, Canada

[3] CSIRO, Div Forestry Res, Canberra, ACT, Australia

来源：

PHOTOSYNTHETICA | 1997年 / 34卷 / 03期

关键词：

assimilation rate; CO2; intercellular CO2 partial pressure; 3-orthomethyl-glucopyranose; stomatal conductance;

D O I：

10.1023/A:1006855816437

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Experiments on the physiological significance of accumulation of proline and glycinebetaine (GB) in sustaining photosynthesis during salt stress in wheat in vivo showed that pre-treatment with GB, but not proline, alleviated NaCl-induced stomatal and non-stomatal inhibition of photosynthesis completely. A permeating and non-dissociating osmoticum, 3-orthomethyl-glucopyranose, also alleviated NaCl-induced perturbations of photosynthesis, suggesting that GB may work by maintaining chloroplast volume and not by specific effects on photosynthetic processes.

引用

页码：357 / 366

页数：10

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