Recombinant lipoxygenases and hydroperoxide lyases for the synthesis of green leaf volatiles

Research output: Contribution to journalReview articleResearchpeer-review

Abstract

Green leaf volatiles (GLVs) are mainly C6- and in rare cases also C9-aldehydes, -alcohols, and -esters, which are released by plants in response to biotic or abiotic stresses. These compounds are named for their characteristic smell reminiscent of freshly mowed grass. This review focuses on GLVs and the two major pathway enzymes responsible for their formation: lipoxygenases (LOXs) and fatty acid hydroperoxide lyases (HPLs). LOXs catalyze the peroxidation of unsaturated fatty acids, such as linoleic and α-linolenic acids. Hydroperoxy fatty acids are further converted by HPLs into aldehydes and oxo-acids. In many industrial applications, plant extracts have been used as LOX and HPL sources. However, these processes are limited by low enzyme concentration, stability, and specificity. Alternatively, recombinant enzymes can be used as biocatalysts for GLV synthesis. The increasing number of well-characterized enzymes efficiently expressed by microbial hosts will foster the development of innovative biocatalytic processes for GLV production.
Original languageEnglish
Pages (from-to)13367-13392
Number of pages59
JournalJournal of Agricultural and Food Chemistry
Volume67
Issue number49
DOIs
Publication statusPublished - Oct 2019

Fields of Expertise

  • Human- & Biotechnology

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