39701-87-6Relevant articles and documents
THE 1',4'-TRANS-DIOL OF ABSCISIC ACID, A POSSIBLE PRECURSOR OF ABSCISIC ACID IN BOTRYTIS CINEREA
Hirai, Nobuhiro,Okamoto, Masahiko,Koshimizu, Koichi
, p. 1865 - 1868 (1986)
Key Word Index - Botrytis cinerea; Hyphomycetes; abscisic acid; biosynthesis; 1',4'-trans-diol of abscisic acid; 1',4'-dihydroxy-α-ionylideneacetic acid.The 1',4'-trans-diol of abscisic acid was isolated from cultures of Botrytis cinerea.The 2H-labelled d
Asymmetrical ligand binding by abscisic acid 8′-hydroxylase
Ueno, Kotomi,Yoneyama, Hidetaka,Mizutani, Masaharu,Hirai, Nobuhiro,Todoroki, Yasushi
, p. 6311 - 6322 (2008/09/17)
Abscisic acid (ABA), a plant stress hormone, has a chiral center (C1′) in its molecule, yielding the enantiomers (1′S)-(+)-ABA and (1′R)-(-)-ABA during chemical synthesis. ABA 8′-hydroxylase (CYP707A), which is the major and key P450 enzyme in ABA catabol
Biosynthesis of Abscisic Acid by the Non-mevalonate Pathway in Plants, and by the Mevalonate Pathway in Fungi
Hirai, Nobuhiro,Yoshida, Ryuji,Todoroki, Yasushi,Ohigashi, Hajime
, p. 1448 - 1458 (2007/10/03)
The biosynthetic pathways to abscisic acid (ABA) were investigated by feeding [1-13C]-D-glucose to cuttings from young tulip tree shoots and to two ABA-producing phytopathogenic fungi. 13C-NMR spectra of the ABA samples isolated showed that the carbons at 1, 5, 6, 4′, 7′ and 9′ of ABA from the tulip tree were labeled with 13C, while the carbons at 2, 4, 6, 1′, 3′, 5′, 7′, 8′ and 9′ of ABA from the fungi were labeled with 13C.The former corresponds to C-1 and -5 of isopentenyl pyrophosphate, and the latter to C-2, -4 and -5 of isopentenyl pyrophosphate. This finding reveals that ABA was biosynthesized by the non-mevalonate pathway in the plant, and by the mevalonate pathway in the fungi. 13C-Labeled ss;-carotene from the tulip tree showed that the positions of the labeled carbons were the same as those of ABA, being consistent with the biosynthesis of ABA via carotenoids. Lipiferolide of the tulip tree was also biosynthesized by the non-mevalonate pathway.