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Literature summary extracted from

  • Liu, Y.; Shi, L.; Ye, N.; Liu, R.; Jia, W.; Zhang, J.
    Nitric oxide-induced rapid decrease of abscisic acid concentration is required in breaking seed dormancy in Arabidopsis (2009), New Phytol., 183, 1030-1042.
    View publication on PubMed

Organism

EC Number Organism UniProt Comment Textmining
1.14.14.137 Arabidopsis thaliana O81077
-
-
1.14.14.137 Arabidopsis thaliana Q949P1
-
-
1.14.14.137 Arabidopsis thaliana Q9FH76
-
-
1.14.14.137 Arabidopsis thaliana Q9LJK2
-
-

Source Tissue

EC Number Source Tissue Comment Organism Textmining
1.14.14.137 seed
-
 Arabidopsis thaliana
-
1.14.14.137 seed CYP707A2 transcription is much higher than the other CYP707A genes Arabidopsis thaliana
-
1.14.14.137 seed CYP707A4 transcription is the lowest of the CYP707A genes Arabidopsis thaliana
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.14.14.137 (+)-abscisic acid + [reduced NADPH-hemoprotein reductase] + O2
-
 Arabidopsis thaliana 8'-hydroxyabscisate + [oxidized NADPH-hemoprotein reductase] + H2O
-
 ?

Synonyms

EC Number Synonyms Comment Organism
1.14.14.137 (+)-abscisic acid 8'-hydroxylase
-
 Arabidopsis thaliana
1.14.14.137 CYP707A1
-
 Arabidopsis thaliana
1.14.14.137 CYP707A2
-
 Arabidopsis thaliana
1.14.14.137 CYP707A3
-
 Arabidopsis thaliana
1.14.14.137 CYP707A4
-
 Arabidopsis thaliana

Expression

EC Number Organism Comment Expression
1.14.14.137 Arabidopsis thaliana transcription decreases to a lower level after 12 h of imbibition down
1.14.14.137 Arabidopsis thaliana transcription increases during the first 6 h of imbibition up

General Information

EC Number General Information Comment Organism
1.14.14.137 physiological function CYP707A1 mutant shows similar phenotype to wild-type in freshly harvested or after-ripen seeds. Seeds of CYP707A1 mutant has its dormancy entirely broken 18 d after ripening. NO enhances the tolerance to abscisic acid in CYP707A1 mutant during germination. Abscisic acid concentrations decrease rapidly during the first 12 h in CYP707A1 mutant. NO enhances the tolerance to abscisic acid in CYP707A1 mutant Arabidopsis thaliana
1.14.14.137 physiological function CYP707A2 plays a major role in abscisic acid catabolism during the first stage of imbibition. CYP707A2 is involved in NO-induced dormancy break. CYP707A2 mutant shows a strong dormancy in freshly harvested seeds. CYP707A2 mutant still maintains strong dormancy until 30 d. NO does not enhance the tolerance to abscisic acid in CYP707A2 mutant during germination Arabidopsis thaliana
1.14.14.137 physiological function CYP707A3 mutant shows similar phenotype to wild-type in freshly harvested or after-ripen seeds, with the seeds of CYP707A3 mutant having a slightly higher germination rate than the wild-type. Seeds of CYP707A3 mutant has its dormancy entirely broken 18 d after ripening. NO enhances the tolerance to abscisic acid in CYP707A3 mutant during germination Arabidopsis thaliana