Zhu, Jian-Kang (2002) Salt and Drought Stress Signal Transduction in Plants. Annual Review of Plant Biology, 53. pp. 247-273.
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Abstract
Salt and drought stress signal transduction consists of ionic and osmotic homeostasis signaling pathways, detoxification (i.e., damage control and repair) response pathways, and pathways for growth regulation. The ionic aspect of salt stress is signaled via the SOS pathway where a calcium-responsive SOS3-SOS2 protein kinase complex controls the expression and activity of ion transporters such as SOS1. Osmotic stress activates several protein kinases including mitogen-activated kinases, which may mediate osmotic homeostasis and/or detoxification responses. A number of phospholipid systems are activated by osmotic stress, generating a diverse array of messenger molecules, some of which may function upstream of the osmotic stress–activated protein kinases. Abscisic acid biosynthesis is regulated by osmotic stress at multiple steps. Both ABA-dependent and -independent osmotic stress signaling first modify constitutively expressed transcription factors, leading to the expression of early response transcriptional activators, which then activate downstream stress tolerance effector genes.
| Item Type: | Article |
|---|---|
| Additional Information: | I thank Liming Xiong, Becky Stevenson, Masaru Ohta, and Satoshi Iuchi for assistance in the preparation of this manuscript. Research in my laboratory is supported by grants from the U.S. National Institutes of Health, the U.S. National Science Foundation, and the U.S. Department of Agriculture |
| Uncontrolled Keywords: | osmotic stress, abscisic acid, SOS, protein kinase, phospholipid, calcium signaling, gene expression |
| Author Affiliation: | Department of Plant Sciences, University of Arizona, Tucson, Arizona 85721 |
| Subjects: | Plant Production Plant Physiology and Biochemistry > Plant Physiology |
| Divisions: | General |
| Depositing User: | Mr Balakrishna Garadasu |
| Date Deposited: | 25 May 2013 14:53 |
| Last Modified: | 25 May 2013 14:53 |
| Official URL: | http://dx.doi.org/10.1146/annurev.arplant.53.09140... |
| URI: | http://eprints.icrisat.ac.in/id/eprint/10622 |
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