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Seed lipoxygenases: occurrence and functions

Published online by Cambridge University Press:  22 February 2007

Jacques Loiseau
Affiliation:
UMR Physiologie Moléculaire des Semences, 16 boulevard Lavoisier, 49045 Angers cedex 01, France
Benoît Ly Vu
Affiliation:
UMR Physiologie Moléculaire des Semences, 16 boulevard Lavoisier, 49045 Angers cedex 01, France
Marie-Hélène Macherel*
Affiliation:
UMR Physiologie Moléculaire des Semences, 16 boulevard Lavoisier, 49045 Angers cedex 01, France
Yvon Le Deunff
Affiliation:
UMR Physiologie Moléculaire des Semences, 16 boulevard Lavoisier, 49045 Angers cedex 01, France
*
*Correspondence Fax: 33241739309 Email: marie-helene.macherel@inh.fr

Abstract

Lipoxygenases are widely distributed in the animal and plant kingdoms. These enzymes catalyse the hydroperoxidation of polyunsaturated fatty acids containing cis,cis-1,4-pentadiene moieties. Multiple isoenzymes, with different biochemical properties and tissue distribution, have been described for many plants. Lipoxygenases occur in vegetative tissues, but also accumulate in various seeds, and especially in leguminous seeds. Although several functions have been proposed for vegetative lipoxygenases, the roles of seed lipoxygenases remain enigmatic. In this review we discuss whether physiological functions assigned to vegetative lipoxygenases can be extended to seed isoforms.

Information

Type
Invited Review
Copyright
Copyright © Cambridge University Press 2001

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