Recent advances in ABA signaling |
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Authors: | Soo Young Kim |
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Institution: | (1) Department of Molecular Biotechnology, College of Agriculture and Life Sciences, Chonnam National University, 500-757 Gwangju, Korea |
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Abstract: | Abscisic acid (ABA) is a major plant hormone that controls germination, seedling growth, and seed development. During the
vegetative phase, ABA plays a key regulatory role in adaptive responses to common abiotic stresses, such as drought, high
salinity, and cold. In seeds, ABA modulates the synthesis of storage components and prevents the precocious germination of
embryos. ABA-regulated processes are critical for plant growth and survival, especially under unfavorable environmental conditions.
Numerous genetic and biochemical studies to delineate signal transduction pathways have led to the identification of a large
number of ABA signaling components. However, our knowledge about specific response pathways is still fragmentary. Over the
past several years, significant progress has been made in identifying key regulators of early events in the ABA response.
In this short review, new advances in ABA signaling research, especially those focused on ABA receptors, will be summarized. |
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Keywords: | abiotic stress abscisic acid hormone receptor signal-transduction |
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