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- Title
Changes in Salicylic and Abscisic Acid Contents during Heat Treatment and Their Effect on Thermotolerance of Grape Plants.
- Authors
Wang, L. J.; Huang, W. D.; Liu, Y. P.; Zhan, J. C.
- Abstract
Heat treatment (38°C) of young grape plants ( Vitis vinifera L., cv. Jingxiu) or leaf spraying with 100 µM salicylic acid (SA) increased leaf thermotolerance. Both treatments led to an increase in ABA content and a decrease in lipoxygenase (LOX) activity. ABA content showed a drastic rise by one hour after treatments and then sharply declined while LOX activity continuously decreased. In the course of heat treatment of grape plants, endogenous SA level and phenylalanine ammonia-lyase activity rapidly increased during the first hour, then declined. These results showed that endogenous SA and ABA can be involved in grape plant response to heat treatment resulted in improved thermotolerance.
- Subjects
SALICYLIC acid; ABSCISIC acid; GRAPES; EFFECT of temperature on plants; LEAVES; LIPOXYGENASES; BOTANY
- Publication
Russian Journal of Plant Physiology, 2005, Vol 52, Issue 4, p516
- ISSN
1021-4437
- Publication type
Academic Journal
- DOI
10.1007/s11183-005-0076-8