Biosynthetic experiments with tall plants under field conditions.: 18O2 incorporation into humulone from Humulus lupulus

被引：10

作者：

Hecht, S

Kammhuber, K

Reiner, J

Bacher, A

Eisenreich, W

机构：

[1] Tech Univ Munich, Lehrstuhl Organ Chem & Biochem, D-85747 Garching, Germany

[2] Bayer Landesanstalt Landwirtschaft, D-85283 Wolnzach, Germany

[3] Univ Bayreuth, Lehrstuhl Organ Chem 1, D-95440 Bayreuth, Germany

来源：

PHYTOCHEMISTRY | 2004年 / 65卷 / 08期

关键词：

Humulus lupulus; Cannabaceae; biosynthesis; bitter acid; humulone; cohumulone;

D O I：

10.1016/j.phytochem.2003.08.026

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Five segments of a large hop plant (Humulus lupulus var. Hallertauer Magnum) carrying several cones were enclosed in sealed glass vessels that were gassed with 180, After 14 days, the segments were harvested and humulone and cohumulone were analysed by NMR spectroscopy and mass spectroscopy. The oxygen atoms in position 6 of humulone and cohumulone showed 9% O-18 enrichment, respectively. It follows that the C-6 hydroxy groups were introduced by oxygenase catalysis. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：1057 / 1060

页数：4

共 8 条

[1] BIOSYNTHESIS OF HOP BITTER PRINCIPLES .7. AMINO-ACIDS AS PRECURSORS OF ACYL SIDE-CHAIN OF HOP BITTER COMPOUNDS [J].