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Open AccessReview

Integration of Abscisic Acid Signaling with Other Signaling Pathways in Plant Stress Responses and Development

1
Department of Bioindustry and Bioresource Engineering, Plant Engineering Research Institute, Sejong University, Seoul 05006, Korea
2
Department of Agriculture, Sri Sri University, Cuttack 754-006, India
3
Southern Cross Plant Science, Southern Cross University, East Lismore NSW 2480, Australia
4
Phyzen Co, Seongnam 13558, Korea
5
Stress Physiology and Molecular Biology Lab, Centre for Biotechnology, MD University, Rohtak 124001, India
*
Authors to whom correspondence should be addressed.
Plants 2019, 8(12), 592; https://doi.org/10.3390/plants8120592
Received: 2 November 2019 / Revised: 26 November 2019 / Accepted: 10 December 2019 / Published: 11 December 2019
(This article belongs to the Special Issue 2019 Feature Papers by Plants’ Editorial Board Members)
Plants are immobile and, to overcome harsh environmental conditions such as drought, salt, and cold, they have evolved complex signaling pathways. Abscisic acid (ABA), an isoprenoid phytohormone, is a critical signaling mediator that regulates diverse biological processes in various organisms. Significant progress has been made in the determination and characterization of key ABA-mediated molecular factors involved in different stress responses, including stomatal closure and developmental processes, such as seed germination and bud dormancy. Since ABA signaling is a complex signaling network that integrates with other signaling pathways, the dissection of its intricate regulatory network is necessary to understand the function of essential regulatory genes involved in ABA signaling. In the present review, we focus on two aspects of ABA signaling. First, we examine the perception of the stress signal (abiotic and biotic) and the response network of ABA signaling components that transduce the signal to the downstream pathway to respond to stress tolerance, regulation of stomata, and ABA signaling component ubiquitination. Second, ABA signaling in plant development processes, such as lateral root growth regulation, seed germination, and flowering time regulation is investigated. Examining such diverse signal integration dynamics could enhance our understanding of the underlying genetic, biochemical, and molecular mechanisms of ABA signaling networks in plants. View Full-Text
Keywords: abscisic acid; abiotic stress signaling; ubiquitination; seed germination; E3 ubiquitin ligase; stomatal regulation abscisic acid; abiotic stress signaling; ubiquitination; seed germination; E3 ubiquitin ligase; stomatal regulation
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    Doi: 10.20944/preprints201911.0382.v1
MDPI and ACS Style

Kumar, M.; Kesawat, M.S.; Ali, A.; Lee, S.-C.; Gill, S.S.; Kim, H.U. Integration of Abscisic Acid Signaling with Other Signaling Pathways in Plant Stress Responses and Development. Plants 2019, 8, 592.

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