Table 1.

HATs that are involved in plant hormone responses.

HAT family	Protein name	Species	Physical interacting partners	Plant hormone responsea)	Associated histone acetylation	Refs.
GNAT	GCN5	Arabidopsis	N/A	Represses the ABA response	N/A	[32]
			PRZ1	Positively regulate gene expression in response to Auxin	H3K9, H3K14, H3K27, H4K8, and H4K12	[33–37]
			N/Ab)	together with CLV1 to suppress the ethylene response	H3K9 and H3K14	[34]
	ELP3	Arabidopsis	ELP1, ELP2, ELP4, and ELP6	Represses the ABA response	N/A	[38–40]
			N/A	Represses the Auxin response	H3K14	[38]
			N/A	Represses the ethylene response	N/A	[38]
			N/A	Represses the JA response	N/A	[38]
	OsHAG702	Rice	N/A	OsHAG702 expression is elevated by ABA	N/A	[41]
	OsHAG703	Rice	N/A	OsHAG703 expression is elevated by ABA	N/A	[41]
	HvGCN5	Barley	N/A	HvGCN5 expression is elevated by ABA	N/A	[42]
	HvELP3	Barley	N/A	HvELP3 expression is elevated by ABA	N/A	[42]
MYST	OsHAM701	Rice	N/A	OsHAM701 expression is elevated by ABA	N/A	[41]
	HvMYST	Barley	N/A	OHvMYST expression is elevated by ABA	N/A	[42]
HAC	HAC1	Arabidopsis	N/A	Represses the GA response	N/A	[43]
			N/A	Represses the ethylene response	N/A	[44]
	HAC4	Arabidopsis	N/A	Represses the ethylene response	N/A	[44]
	HAC5	Arabidopsis	N/A	Represses the ethylene response	N/A	[44]
	OsHAC701	Rice	N/A	OsHAC701 expression is elevated by ABA	N/A	[41]
	OsHAC703	Rice	N/A	OsHAC703 expression is elevated by ABA	N/A	[41]
			N/A	OsHAC703 expression is reduced by SA	N/A	[41]
	OsHAC704	Rice	N/A	OsHAC704 expression is reduced by SA	N/A	[41]

^a)ABA, abscisic acid; JA, jasmonic acid; GA, gibberellic acid; SA, salicylic acid

^b)N/A, not available.