Journal
CURRENT PROTEIN & PEPTIDE SCIENCE
Volume 16, Issue 5, Pages 413-434Publisher
BENTHAM SCIENCE PUBL LTD
DOI: 10.2174/1389203716666150330130102
Keywords
ABA metabolism; human cells; interaction; receptors; signal transduction; stress responses
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Funding
- Ministerio de Economia (Spain)
- Universitat Jaume I [AGL2013-42038-R, P1 1B2013-23]
- Universitat Jaume I
- Santiago Grisolia fellowship from Generalitat Valenciana (Spain)
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As sessile organisms, plants cannot escape from adverse conditions and, therefore, they have developed complex responses to the changing environment. Plant responses to abiotic cues involve changes in metabolism, photosynthesis, gene expression, ion levels, etc., and must be perfectly coordinated by phytohormones. The abscisic acid (ABA) is the main phytohormone involved in abiotic stress responses although it is nowadays clear that its signaling pathways are not isolated but interconnected with other hormone signals in complex networks. This article revises molecular mechanisms involved in the crosstalks of ABA with other phytohormones in response to different physiological processes. Moreover, ABA is not a molecule exclusive from plants but it can be found in many other organisms including bacteria, algae, fungi, animals, etc. Interestingly, it can be synthesized and secreted by a variety of human cells. These aspects that confer to the ABA a range of ubiquitous molecule will be also revised in this article.
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