title: Indole-3-methanol is the main product of the oxidation of indole-3-acetic acid catalyzed by two cytosolic basic isoperoxidases from Lupinus.
abstract: The nature of the products of the auxin catabolism mediated by both basic and acidic isoperoxidases has been studied. While indole-3-methanol is only a minor product of the oxidation of indole-3-acetic acid catalyzed by extracellular acidic isoperoxidases, it is the only product of the oxidation of indole-3-acetic acid catalyzed by two cytosolic basic isoperoxidases (EC 1.11.1.7) from lupin (Lupinus albus L.) hypocotyls. The putative indole-3-methanol formed by these latter isoperoxidases was isolated and then characterized by mass spectrometry and (1)H-nuclear magnetic resonance spectrometry. These results are discussed with respect to the diversity and compartmentation of the catabolism of indole-3-acetic acid in plant tissues.
authors.affiliation: Department of Plant Biology, University of Murcia, Campus of Espinardo, E-30071, Murcia, Spain.
authors.forename: A
authors.initials: A
authors.lastname: Ros Barceló
authors.forename: M A
authors.initials: MA
authors.lastname: Pedreño
authors.forename: M A
authors.initials: MA
authors.lastname: Ferrer
authors.forename: F
authors.initials: F
authors.lastname: Sabater
authors.forename: R
authors.initials: R
authors.lastname: Muñoz