21293-29-8Relevant articles and documents
A novel synthesis of (±)-abscisic acid
Gomes Constantino,Losco,Castellano
, p. 681 - 683 (1989)
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Synthesis and biological activity of abscisic acid esters
Wan, Chuan,Zhang, Yuanzhi,Yang, Dongyan,Han, Xiaoqiang,Li, Xiuyun,Li, Hong,Xiao, Yumei,Qin, Zhaohai
, p. 267 - 272 (2015/06/22)
Abstract 16 ABA esters including 11 new compounds were prepared by two different esterification routes. All the structures of ABA esters were confirmed by 1H NMR, 13C NMR and HRMS. Their biological activity and hydrolysis stability were investigated. Fortunately, there were 15 and 9 compounds which displayed much better or nearly the same inhibition activity for rice seedling growth and Arabidopsis thaliana seed germination compared to ABA, respectively. Especially, compounds 2d and 2g showed better biological activities than ABA in the three tests. Moreover, we found that chemical hydrolysis ability of the esters in vitro had little relationship to their biological activity.
Resolution of (+)-abscisic acid using an Arabidopsis glycosyltransferase
Lim, Eng-Kiat,Doucet, Charlotte J.,Hou, Bingkai,Jackson, Rosamond G.,Abrams, Suzanne R.,Bowles, Dianna J.
, p. 143 - 147 (2007/10/03)
Abscisic acid (ABA) can exist as two enantiomers, with (+)-ABA as the naturally occurring form. Typically, both enantiomers occur in chemical preparations and both can be modified in the plant to their respective glucose esters. To identify glycosyltransferases capable of discriminating between the different forms of ABA, the Family 1 enzymes of Arabidopsis thaliana were screened for activity towards (±)-ABA. Eight enzymes were found to recognise the plant hormone, with one UGT71B6 showing enantioselective glucosylation towards (+)-ABA. UGT71B6 was used in a whole-cell biocatalysis system as a means of separating (+)- and (-)-ABA, thereby offering an alternative to chemical synthesis for the production of pure (+)-ABA.