In order to examine the occurrence of 11-hydroxyjasmonic acid glucoside in potato plants, a synthesis of 11-hydroxyjasmonic acid was accomplished, and the synthetic compound was employed as a standard for an LC-SIM analysis. The existence of 11-hydroxyjasmonic acid glucoside was proved by the LC-SIM analysis.
Microbial conversion of jasmonates - hydroxylations by Aspergillus niger
作者:Otto Miersch、Andrea Porzel、Claus Wasternack
DOI:10.1016/s0031-9422(98)00698-0
日期:1999.4
Aspergillusniger is able to hydroxylate the pentenyl side chain of (-)-jasmonic acid (JA) leading to (11S)-(-)-hydroxy-JA/(11R)- (-)-hydroxy-JA (2:1) and (-)-11,12-didehydro-JA. Methyl (-)-jasmonate (JA-Me) is converted upon hydrolysis. During prolonged cultivation or at non-optimized isolation procedures, the 11-hydroxy-(9Z)-pentenyl side chain may isomerize to (10E)-9-hydroxy- and (9E)-11-hydroxy-compounds