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

Autor: D. Aspinall, Lada R. Rajasekaran, L. G. Paleg, P.E. Kriedemann
Rok vydání: 1997
Předmět:
Zdroj: Photosynthetica. 34:357-366
ISSN: 1573-9058
0300-3604
DOI: 10.1023/a:1006855816437
Popis: 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.
Databáze: OpenAIRE