Salt hypersensitive mutant 9, a nucleolar APUM23 protein, is essential for salt sensitivity in association with the ABA signaling pathway in Arabidopsis

Table 5 Differential expression of LEA proteins in the sahy9/apum23 mutant^a compared with the wild type

Locus	Protein name	Biological/molecular function	Fold change^b (P value) normal conditions	Fold change (P value) salt stress
AT1G52690	LEA7 (LEA_4)^c	Embryo development ending in seed dormancy	2.83 (7.23E-07)	0.36 (2.04E-06)
AT4G21020	(LEA_4)	Embryo development ending in seed dormancy	2.68 (2.61E-06)	2.22 (0.00026)
AT5G44310	(LEA_4)	Embryo development ending in seed dormancy	2.64 (3.73E-06)	2.73 (3.92E-06)
AT3G17520	(LEA_4)	Embryo development ending in seed dormancy	2.60 (5.1E-06)	0.54 (0.0041)
At2G42540	COR15A, (LEA_4)	Response to ABA and cold	2.33 (5.66E-05)	0.60 (0.018)
AT5G53820	LEA		2.31 (7.05E-05)	ns
AT4G02380	ATLEA5 (LEA_3), SAG21	Response to abscisic acid	1.98 (0.0012)	ns
AT5G06760	LEA4–5 (LEA_1)	Response to osmotic stress	1.90 (0.0024)	0.54 (0.0041)
AT3G02480	(LEA_4)	ABR, ABA-RESPONSE PROTEIN	1.86 (0.0033)	0.61 (0.020)
AT3G15670	LEA76 (LEA_4)	Embryo development ending in seed dormancy	1.79 (0.0059)	0.64 (0.035)
AT2G42560	(LEA_4)	Embryo development ending in seed dormancy	1.73 (0.010)	0.33 (1.78E-07)
AT2G42530	COR15B (LEA_4)	Response to ABA and cold	ns	0.55 (0.0056)

^aPlants were grown vertically on half-strength MS medium for 10 days and then transferred to fresh medium supplemented with or without 150 mM NaCl for 1 day. ^bThe fold change in sahy9/apum23 was normalized against the wild type. ns no significance. ^cLEA proteins were classified into groups based on previous description [24]

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