The lipoxygenase pathway in garlic (Allium sativum L.) bulbs: detection of the novel divinyl ether oxylipins

FEBS Letters

Mukhtarova, Lucia S.¹  Grechkin, Alexander N.¹  Fazliev, Farit N.¹ 

[1] Institute of Biology, Russian Academy of Sciences, PO Box 30, Kazan 420503, Russian Federation

关键词: Linoleic acid;    α-Linolenic acid;    Lipoxygenase;    3- Hydroperoxides metabolism;    Divinyl ether oxylipin;    Garlic;    Allium sativum;    13-HPOD;    (9Z;    11E;    13S)-13-hydroperoxy-9;    11-octadecadi enoic acid;    13-HPOT;    (9Z;    11E;    13S;    15Z)-13-hydroperoxy-9;    11;    15-octadecatrienoic acid;    9-HPOD;    (9S;    10E;    12Z)-9-hydroperoxy-10;    12-octadecadi enoic acid;    9-HPOT;    (9S;    10E;    12Z;    15Z)-9-hydroperoxy-10;    12;    15-octadecatrienoic acid;   

DOI  :  10.1016/0014-5793(95)00895-G

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

Incubations of [1-¹⁴C]linoleic acid or [1-¹⁴C]-(9Z.11E, 13S)-13-hydropero xy-9,11-octadecadienoic acid (13-HPOD) with juice of garlic bulbs lead to the formation of one predominant labelled product, viz., the novel divinyl ethery (9Z,11E, 1′E)-12-(1′-hexenyloxy)-9,11-odecadienoic acid (‘etheroleic acid’). With lesser efficiency [1-¹⁴C]α-linolenic acid or [1-¹⁴C](9Z,11E,13S,15Z)-13-hydroperoxy-9,11,15-octadecatrienoic acid (13-HPOT) are converted in this way into (9Z,11E,1′E,3′Z)-12-(1′,3′-hexadienyloxy)-9,11-dodecadienoic acid (‘etherolenic acid’). Thus, garlic bulbs possess the activity of a new 13-hydroperoxide-specific divinyl ether synthase.

【 授权许可】

Unknown