Table 1.

A list of ABA receptors functionally validated in plants.

S.No.	Gene	Source	Promoter	Transgenic plant	Phenotype and stress tolerance	Reference
1	OsPYL5	Arabidopsis	CaMV35S, Overexpression	Arabidopsis	Drought tolerance at seedling stage	Santiago et al., 2009
2	AtPYL8	Arabidopsis	CaMV35S, Overexpression	Arabidopsis	ABA hypersensitivity at seedling stage; Drought tolerance at seedling stage	Lim et al., 2013
3	AtPYL9	Arabidopsis	RD29A, Overexpression	Arabidopsis and Rice	Drought tolerance and enhanced leaf senescence at seedling stage in both Arabidopsis and rice	Zhao et al., 2016
4	RCAR11/12/13/14	Arabidopsis	CaMV35S, Overexpression	Arabidopsis	ABA hypersensitivity at germination and post germination; Drought Tolerance at seedling stage	Li et al., 2018
5	AtPYL5	Arabidopsis	pGC1, Overexpression	Arabidopsis	Drought stress tolerance at vegetative stage	Quan et al., 2018
6	RCAR6, RCAR10	Arabidopsis	CaMV35S, Overexpression	Arabidopsis	Modulate plant water use efficiency and water productivity in seedlings	Yang et al., 2019
7	RCAR6/PYL12	Arabidopsis	CaMV35S, Overexpression	Arabidopsis	Increased water use efficiency with higher growth rate in seedlings	Yang et al., 2016
8	VlPYL1	Vitis labrusca	CaMV35S, Overexpression	Arabidopsis	Enhances ABA sensitivity at germination and seedling stage	Gao et al., 2018
9	SlPYL	Tomato	CaMV35S, Overexpression	Arabidopsis	Drought resistance at seedling stage	González-Guzmán et al., 2014
10	BrPYL1	Brassica rapa	CaMV35S, Overexpression	Arabidopsis	ABA hypersensitivity during seed germination	Li et al., 2017
11	GhPYL9-11A	Cotton	CaMV35S, Overexpression	Arabidopsis	hypersensitive to ABA during seed germination and early seedling stage	Liang et al., 2017
12	GhPYL10/12/26	Cotton	CaMV35S, Overexpression	Arabidopsis	Increased ABA sensitivity during germination and early seedling growth and Drought tolerance at flowering stage	Chen et al., 2017
13	ZmPYL8/9/12	Maize	CaMV35S, Overexpression	Arabidopsis	Increase ABA sensitivity at germination stage, Drought Resistance at seedling stage	He et al., 2018
14	FePYR1	Festuca elata	CaMV35S, Overexpression	Arabidopsis	Enhanced drought tolerance at seedlings stage	Ren et al., 2017
15	MpPYL1	Marchantia polymorpha	MpEF1, Overexpression	Liverworts	ABA-hypersensitive growth with enhanced desiccation tolerance at seedling stage	Jahan et al., 2019
16	PtPYRL1, PtPYRL5	Poplar	CaMV35S, Overexpression	Arabidopsis	Abscisic Acid Sensitivity at germination and Drought Resistance at seedling stage	Yu et al., 2016
17	AaPYL9	Artemisia annua	CaMV35S, Overexpression	Arabidopsis	Enhances drought tolerance and improves Artemisinin content at vegetative stage	Zhang et al., 2013
18	FaPYR1	Strawberry	RNAi	Strawberry	Involve in fruit ripening at maturity	Chai et al., 2011
19	TaPYL	Wheat	Overexpression	Wheat	Enhanced water-use efficiency and drought tolerance at flowering stage	Mega et al., 2019
20	OsPYL8, OsPYL9	Rice	ZmUbq, Overexpression	Arabidopsis	hypersensitivity to ABA during seed germination	Chen et al., 2017
21	OsPYL3	Rice	CaMV35S, Overexpression	Arabidopsis	Enhances Cold and Drought Tolerance at seedling stage	Lenka et al., 2018
22	OsPYL/RCAR5	Rice	ZmUbq, Overexpression	Rice	Hypersensitive to ABA during seed germination and early seedling growth	Kim et al., 2012
23	OsPYL/RCAR5	Rice	ZmUbq, Overexpression	Rice	Enhances drought and salt stress tolerance at seedling stage	Kim et al., 2014
24	OsPYL3, OsPYL9	Rice	CaMV35S, Overexpression	Rice	Improved drought and cold stress tolerance at seedling stage	Tian et al., 2015
25	OsPYL1/4/6	Rice	CRISPR/Cas9	Rice	Decreases the ABA sensitivity at germination and improves grain yield under non-stress conditions	Miao et al., 2018