Skip to main content
. 2021 Mar 31;35:199–214. doi: 10.1016/j.jare.2021.03.011

Table 1.

Associated ABA metabolism (synthesis and catabolism) and response genes in this paper.

Gene Name Protein/Enzyme Mutant Mutant phenotype Specie Reference
ABA Biosynthesis
ABA1 Zeaxanthin epoxidase (ZEP) aba1, vp2/5/7/9 Reduced dormancy Arabidopsis, Maize, Tobacco [104]
ABA2 Short-chain dehydrogenase reductase (AB-SDR) aba2 Reduced dormancy Arabidopsis [31], [37]
ABA2 Zeaxanthin epoxidase (ZEP) aba2 Reduced dormancy Tobacco [37]
VP14 9-cis Epoxycarotenoid dioxygenase vp14 Reduced dormancy Maize [35], [205]
NCED 9-cis Epoxycarotenoid dioxygenase nced1-9 Reduced dormancy Arabidopsis, Bean, Brachypodium distachyon [44]
AAO3 Aldehyde oxidase 3 aao3-1 Slightly reduced dormancy Arabidopsis [47]



ABA Catabolism
CYP707A2 ABA 8′-hydroxylase cyp707a2-1/2 Enhanced dormancy Arabidopsis [27]
CYP707A1 ABA 8′-hydroxylase cyp707a1 Enhanced dormancy Arabidopsis [28], [206]



ABA signaling components
PYR, PYL/RCAR ABA receptors Pyls Reduced dormancy and ABA sensitivity Arabidopsis , Rice [29], [30]
ABI1 Protein phosphatase 2C abi1-1 Reduced dormancy and ABA sensitivity Arabidopsis [207], [208], [209]
ABI2 Protein phosphatase 2C abi2-1 Reduced dormancy and ABA sensitivity Arabidopsis [209], [210], [211]
AHG1 Protein phosphatase 2C ahg1-1/2/3/4/5 Enhanced dormancy and ABA sensitivity Arabidopsis [54], [55]
AHG3 Protein phosphatase 2C Ahg3-1/2 Enhanced dormancy and ABA sensitivity Arabidopsis [212], [213]
SnRK2s Protein kinase snrk2.2, 2.3, 2.6 triple mutant Green seed, Reduced dormancy and ABA sensitivity Arabidopsis [214], [215]



Transcription factors
ABI3/VP1 B3 domain abi3-1 to 17, vp1 Green seed, Reduced dormancy and ABA sensitivity Arabidopsis, Rice, Maize [60], [216], [217]
ABI4 ERF/APETALA domain abi4-1 ABA insensitive Arabidopsis [75], [218]
ABI5 ABF, bZIP abi5-1/7/8 ABA insensitive Arabidopsis [60], [219]
FUS3 B3 domain fus3-3/8 Reduced dormancy Arabidopsis
LEC1 B3 domain lec1-1/2 Reduced dormancy Arabidopsis [68], [220]
LEC2 B3 domain lec2-1/3 Reduced dormancy Arabidopsis [26], [220]