GIGANTEA-ENHANCED EM LEVEL complex initiates drought escape response via dual function of ABA synthesis and flowering promotion
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초록

Plants use the regulation of their circadian clock to adapt to daily environmental challenges, particularly water scarcity. During drought, plants accelerate flowering through a process called drought escape (DE) response, which is promoted by the circadian clock component GIGANTEA (GI). GI up-regulates the flowering inducer gene FLOWERING LOCUS T (FT). Phytohormone Abscisic acid (ABA) is also required for drought escape, and both GIGANTEA and Abscisic acid are interdependent in the transition. Recent research has revealed a new mechanism by which GIGANTEA and the protein ENHANCED EM LEVEL form a heterodimer complex that turns on ABA biosynthesis during drought stress by regulating the transcription of 9-CIS-EPOXYCAROTENOID DIOXYGENASE 3 (NCED3). This highlights the close connection between the circadian clock and ABA regulation and reveals a new adaptive strategy for plants to cope with drought and initiates the DE response. © 2023 The Author(s). Published with license by Taylor & Francis Group, LLC.

키워드

ABA biosynthesiscircadian clockdrought escapeEELGIGANTEANCED3ABSCISIC-ACID ABACIRCADIAN CLOCKARABIDOPSISABI5STABILIZATIONTOLERANCEPROTEINSCONSTANSGENEFKF1
제목
GIGANTEA-ENHANCED EM LEVEL complex initiates drought escape response via dual function of ABA synthesis and flowering promotion
저자
Bader, Z.E.Bae, M.J.Ali, A.Park, J.Baek, DongwonYun, D.-J.
DOI
10.1080/15592324.2023.2180056
발행일
2023-12
유형
Article
저널명
Plant Signaling and Behavior
18
1