Abstract
The present paper focusses on the fatty acid hydroperoxides pathways, mainly hydroperoxide lyase and hydroperoxide dehydrase. For each enzyme, the definition, occurrence and subcellular localization is presented. Particular attention is given to reaction mecanisms and to substrate specificity. Physiological roles of reaction products are also discussed.
Highlights
Other enzymatic conversions of fatty acid hydroperoxides exist in some plants, they are presented here
Fatty acid hydroperoxides are key components formed by the action of lipoxygenase (E.G. 1.13.11.12) on 1-Z, 4-Z pentadiene containing fatty acids
The hydroperoxides can be further degraded in a variety of products involved in essential physiological roles in plants or responsible of the caractehstic green notes of plants and fruits (C-6 or C-9 aldehydes and alcohols)
Summary
The present paper focusses on the fatty acid hydroperoxides pathways, mainly hydroperoxide lyase and hydroperoxide dehydrase. The definition, occurrence and subcellular localization is presented. Particular attention is given to reaction mecanisms and to substrate specificity. Physiological roles of reaction products are discussed. KEY-WORDS: Hydroperoxide dehydrase (pathway) Hydroperoxide lyase (pathway) - Plant - Review (paper). Acids synthesis and the dehydrase one which furnishes a, y-cetols and a cyclic compound. Other enzymatic conversions of fatty acid hydroperoxides exist in some plants (divinyl ethers synthesis, hydroperoxide isomerase and hydroperoxide dependant peroxygenase and epoxygenase), they are presented here
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