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- Title
Phospholipase D and phosphatidic acid signalling in plant response to drought and salinity.
- Authors
YUEYUN HONG; WENHUA ZHANG; XUEMIN WANG
- Abstract
The activity of phospholipase D (PLD) in plants increases under different hyperosmotic stresses, such as dehydration, drought, and salinity. Recent results begin to shed light onto the involvement of PLD in response to water deficits and salinity. Different PLDs have unique and overlapping functions in these responses. PLD α1 promotes stomatal closure and reduces water loss. PLD α1 and PLD δ are involved in seedling tolerance to salt stress. PLD α3 and PLD ε enhance plant growth and hyperosmotic tolerance. The different PLDs regulate the production of phosphatidic acid (PA) that is a key class of lipid mediators in plant response to environmental stresses. Further studies on the upstream regulators that activate different PLDs and the downstream effectors of PLDs and PA have the potential to unveil the linkage between the stimulus perception at the cell membrane to intracellular responses to drought and salinity stresses.
- Subjects
PHOSPHOLIPASES; DROUGHTS; SALINITY; PHOSPHATIDIC acids; PLANT growth
- Publication
Plant, Cell & Environment, 2010, Vol 33, Issue 4, p627
- ISSN
0140-7791
- Publication type
Article
- DOI
10.1111/j.1365-3040.2009.02087.x