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A Plant Growth Retardant, Uniconazole, Is a Potent Inhibitor of ABA Catabolism in Arabidopsis
TLDR
Uniconazole-P effectively inhibits ABA catabolism in Arabidopsis plants and shows enhanced drought tolerance, and the structure-activity relationship of the azole-type compounds on ABA 8′-hydroxylase inhibitory activity is discussed.
PrCYP707A1, an ABA catabolic gene, is a key component of Phelipanche ramosa seed germination in response to the strigolactone analogue GR24
TLDR
Results demonstrate that P. ramosa seed dormancy release relies on ABA catabolism mediated by the GR24-dependent activation of PrCYP707A1, encoding an ABA 8'-hydroxylase.
Biosynthesis of Abscisic Acid by the Non-mevalonate Pathway in Plants, and by the Mevalonate Pathway in Fungi
TLDR
13C-Labeled β-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 A BA via carotenoids.
Dynamic control of plant water use using designed ABA receptor agonists
TLDR
Thermodynamic characterization of 3CB or OP receptor binding reactions indicates that the newly generated scaffold’s improvements are enthalpically driven relative to sulfonamides, consistent with the salt bridge observed in the authors' crystal structure.
Endogenous alpha-ketol linolenic acid levels in short day-induced cotyledons are closely related to flower induction in Pharbitis nil.
TLDR
Results suggest that KODA may be involved in flower induction in P. nil grown under a flower-inductive condition (16-h dark exposure), by means of LC-SIM and LC-MS/MS.
Designed abscisic acid analogs as antagonists of PYL-PP2C receptor interactions.
TLDR
A six-carbon alkyl substitution produced a potent ABA antagonist that was sufficiently active to block multiple stress-induced ABA responses in vivo, and the results validated structure-based design for this target class.
Abscinazole-E3M, a practical inhibitor of abscisic acid 8′-hydroxylase for improving drought tolerance
Abscisic acid (ABA) is an essential phytohormone that regulates plant water use and drought tolerance. However, agricultural applications of ABA have been limited because of its rapid inactivation in
Effects of (+)-8′,8′,8′-trifluoroabscisic acid on a-amylase expression and sugar accumulation in rice cells
TLDR
The regulatory mechanism for the expression of α-amylase I-1 in the scutellar epithelium is distinguishable from that operating in the aleurone layer and the biological activity of trifluoro-ABA was found to be more potent and persistent than that of natural ABA.
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