Osmotic stress activates distinct lipid and MAPK signalling pathways in plants

• Published in: FEBS Letters Vol. 498; no. 2; pp. 172 - 178
• Main Authors: Munnik, Teun, Meijer, Harold J.G
• Format: Book Review Journal Article
• Language: English
• Published: England Elsevier B.V 08.06.2001
• Subjects: DAG, diacylglycerol; DGPP, diacylglycerol pyrophosphate; Diacylglycerol pyrophosphate; IP3, inositol 1,4,5-trisphosphate; L-PA, lyso-phosphatidic acid; MAP Kinase Signaling System - physiology; MAPK, mitogen-activated protein kinase; Models, Biological; Osmotic stress; PA, phosphatidic acid; Phosphatidic acid; Phosphoinositide; Phospholipase; Phospholipids - chemistry; Phospholipids - metabolism; PI3K, phosphoinositide 3-kinase; PIP, phosphatidylinositol phosphate; PIP2, phosphatidylinositol bisphosphate; PLA2, phospholipase A2; Plant Physiological Phenomena; Plant signal transduction; PLC, phospholipase C; PLD, phospholipase D; Second Messenger Systems - physiology; Water-Electrolyte Balance - physiology; PLC, phospholipase C; Phosphoinositide; IP 3, inositol 1,4,5-trisphosphate; PI3K, phosphoinositide 3-kinase; DAG, diacylglycerol; PIP, phosphatidylinositol phosphate; Osmotic stress; PIP 2, phosphatidylinositol bisphosphate; PLA 2, phospholipase A 2; Phospholipase; Diacylglycerol pyrophosphate; PLD, phospholipase D; DGPP, diacylglycerol pyrophosphate; L-PA, lyso-phosphatidic acid; MAPK, mitogen-activated protein kinase; Plant signal transduction; Phosphatidic acid; PA, phosphatidic acid
• ISSN: 0014-5793; 1873-3468
• DOI: 10.1016/S0014-5793(01)02492-9

Plants are continuously exposed to all kinds of water stress such as drought and salinity. In order to survive and adapt, they have developed survival strategies that have been well studied, but little is known about the early mechanisms by which the osmotic stress is perceived and transduced into these responses. During the last few years, however, a variety of reports suggest that specific lipid and MAPK pathways are involved. This review briefly summarises them and presents a model showing that osmotic stress is transmitted by multiple signalling pathways.