ENT-3-BETA-HYDROXYKAUR-16-ENE AND ENT-17-HYDROXYKAUR-15-ENE IN PACLOBUTRAZOL-TREATED WHEAT SEEDLINGS

S J CROKER, P GASKIN, M H BEALE, J R LENTON

Research output: Contribution to journalArticle (Academic Journal)peer-review

Abstract

Large quantities of ent-kaur-16-ene accumulated in the scutella of wheat and barley seedlings treated with the ent-kaurene oxidase inhibitor, (2S, 3S)-paclobutrazol. In addition, ent-3 beta-hydroxykaur-16-ene and ent-17-hydroxykaur-15-ene were identified by full-scan GC mass spectrometric comparison with authentic samples in embryos of paclobutrazol-treated wheat. In four-day-old paclobutrazol-treated wheat, ent-3 beta-hydroxykaur-16-ene occurred in similar amounts to ent-kaur-16-ene in embryonic axes but was about 10-fold less than the quantity of ent-kaur-16-ene in scutella. By comparison, ent-17-hydroxykaur-15-ene was present at very low levels and only in scutella of treated wheat seedlings. Only trace amounts of ent-3 beta-hydroxykaur-16-ene were detected in scutella of paclobutrazol-treated barley.

Original languageEnglish
Pages (from-to)11-14
Number of pages4
JournalPhytochemistry
Volume39
Issue number1
Publication statusPublished - May 1995

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