Abstract
Abscisic acid (ABA) is an important phytohormone regulating various physiological aspects in plants such as seed maturation, dormancy, seedling growth, and stomatal behaviour. In this chapter, a global picture with recent findings in ABA metabolism and responses is overviewed. Because of putting the priority on simplicity, to understand historical importance, you should refer to other reviews such as Cutler et al. (Annu Rev Plant Biol 61:651–79, 2010). In recent years, many enzymes responsible for the synthesis and catabolism of ABA have been identified, almost completing the main pathway of ABA production. In ABA-responding cells, there are sets of core components in the ABA reception system, which regulates multiple responses including induction of gene expression and alteration of ion transport. Many players modify the core components to produce sophisticated reactions. The possibility of modification of the pathways at the molecular level to improve crop productivity will be discussed in the final section.
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Abbreviations
- AAO:
-
ABSCISIC ALDEHYDE OXIDASE
- ABA1-4:
-
ABSCISIC ACID DEFICIENT 1–4
- ABCG:
-
ATP-BINDING CASSETTE G
- ABF:
-
ABSCISIC ACID-RESPONSIVE ELEMENT BINDING FACTOR
- ABI:
-
ABSCISIC ACID INSENSITIVE
- AFP:
-
ABI FIVE BINDING PROTEIN
- AKS:
-
ABA-RESPONSIVE KINASE SUBSTRATE
- AREB:
-
ABSCISIC ACID-RESPONSIVE ELEMENT BINDING PROTEIN
- AtrbohF:
-
A. thaliana respiratory burst oxidase homologue F
- CDPK:
-
CALCIUM-DEPENDENT PROTEIN KINASE
- CPK:
-
CALCIUM-DEPENDENT PROTEIN KINASE
- CYP:
-
CYTOCHROME P450
- DWA:
-
DWD HYPERSENSITIVE TO ABA
- GORK:
-
GUARD-CELL OUTWARD-RECTIFYING K+ CHANNEL
- HAB:
-
HOMOLOGY TO ABI
- HAI:
-
HIGHLY ABSCISIC ACID INDUCED
- KAT:
-
POTASSIUM CHANNEL IN ARABIDOPSIS THALIANA
- KEG:
-
KEEP ON GOING
- KUP:
-
K+ UPTAKE TRANSPORTER
- MAPK:
-
MITOGEN-ACTIVATED PROTEIN KINASES
- NCED:
-
9-cis EPOXYCAROTENOID DIOXYGENASE
- NRT:
-
NITRATE TRANSPORTER
- OST:
-
OPEN STOMATA
- PDR12:
-
PLEIOTROPIC DRUG RESISTANCE12
- PP:
-
PROTEIN PHOSPHATASE
- PYL:
-
PYR1-LIKE
- PYR:
-
PYRABACTIN RESISTANCE
- QUAC:
-
QUICK ACTIVATING ANION CHANNEL
- RCAR:
-
REGULATORY COMPONENT OF ABA RECEPTOR
- RHA2a:
-
RING-H2 FINGER A2a
- SCS:
-
SnRK2-INTERACTING CALCIUM SENSOR
- SDIR:
-
SALT- AND DROUGHT-INDUCED RING FINGER
- SDR:
-
SHORT-CHAIN DEHYDROGENASE/REDUCTASE
- SLAC:
-
SLOW ANION CHANNEL ASSOCIATED
- SLAH:
-
SLAC1 HOMOLOGUE
- SnRK:
-
SNF1-RELATED PROTEIN KINASE
- SUMO:
-
SMALL UBIQUITIN-LIKE MODIFIER
- ZEP:
-
ZEAXANTHIN EPOXIDASE
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This work was supported by the Academy of Finland (Project number 259169).
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Fujii, H. (2014). Abscisic Acid Implication in Plant Growth and Stress Responses. In: Tran, LS., Pal, S. (eds) Phytohormones: A Window to Metabolism, Signaling and Biotechnological Applications. Springer, New York, NY. https://doi.org/10.1007/978-1-4939-0491-4_2
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