ISSN:
1432-2048
Keywords:
Auxin catabolism
;
Cytosol (isoperoxidase)
;
Indole-3-methanol
;
Isoperoxidase, basic
;
Lupinus (auxin, isoperoxidase)
;
Parenchyma (auxin, isoperoxidase)
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
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 1H-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.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00195900
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