Plant oxylipins are a diverse class of lipid metabolites that are derived from the oxidation of unsaturated fatty acids. Oxylipins formed in plants include fatty acid hydroperoxides, hydroxy-, oxo-, or keto-fatty acids, divinyl ethers, volatile aldehydes, or the plant hormone Jasmonic Acid (JA).
Agrawal GK, Tamogami S, Han O, Iwahashi H, Rakwal R; ''Rice octadecanoid pathway.''; Biochem Biophys Res Commun, 2004 PubMedEurope PMCScholia
E. Wassim Chehab, John V. Perea, Banu Gopalan, Steve Theg, Katayoon Dehesh; ''Oxylipin Pathway in Rice and Arabidopsis''; Journal of Integrative Plant Biology; Volume 49 Issue 1, Pages 43 - 51, 2007
Mosblech A, Feussner I, Heilmann I; ''Oxylipins: Structurally diverse metabolites from fatty acid oxidation.''; Plant Physiol Biochem, 2008 PubMedEurope PMCScholia
Mei C, Qi M, Sheng G, Yang Y; ''Inducible overexpression of a rice allene oxide synthase gene increases the endogenous jasmonic acid level, PR gene expression, and host resistance to fungal infection.''; Mol Plant Microbe Interact, 2006 PubMedEurope PMCScholia
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Name
Type
Database reference
Comment
(beta-oxidation)X3
GeneProduct
Three beta-oxidation steps
12, 13-EOT
Metabolite
Also called as (9Z,15Z)-(13S)-12,13-epoxyoctadeca-9,11,15-trienoate
12-OPDA
Metabolite
12-oxo phytodienoic acid (12-OPDA)
13-HPOD
Metabolite
Also called (9Z,11E)-(13S)-13-hydroperoxyoctadeca-9,11-dienoate , 13(S)-hydroperoxyoctadeca-9,11-dienoate
13-HPOT
Metabolite
Also called as (9Z,11E,15Z)-(13S)-hydroperoxyoctadeca-9,11,15-trienoate
9-HPOD
Metabolite
also called 9(S)-hydroperoxy-10(E),12(Z)-octadecadienoic acid
9-HPOT
Metabolite
Also called 9(S)-hydroperoxy-10(E),12(Z),15(Z)-octadecatrienoic acid
Allene oxide cyclase
GeneProduct
Allene oxide cyclase (AOC)
Allene oxide synthase
GeneProduct
Allene oxide synthase (AOS / CYP74A1/ EC 4.2.1.92) is a member of the cytochrome P450 subfamily 74 (CYP74) of P450 enzymes. It plays an important role in oxylipin metabolism and signalling in plant defence.
Divinyl ether PUFAs
Metabolite
Divinyl ether synthase
GeneProduct
Divinyl ether synthase (DES) catalyzes the conversion of fatty acid hydroperoxides into divinyl ether fatty acids. It is localized in the cytoplasm.
OPDA-reductase 3 (OPR3) reduces 12-OPDA into 3-oxo-2-(2-pentenyl)-cyclo-pentane-1-octanoic acid (OPC-8:0), which is transformed to JA by three rounds of β-oxidation
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