Proline Accumulation Induced by Phosphinothricin in Rice Leaves
Resource
Biologia Plantarum 46 (2): 317-319
Journal
Biologia Plantarum
Journal Volume
46
Journal Issue
2
Pages
317-319
Date Issued
2003
Date
2003
Author(s)
Abstract
The effect phosphinothricin (PPT), an inhibitor of glutamine synthetase (GS), on proline accumulation in detached rice leaves was investigated. During 12 h incubation, PPT inhibited GS activity and induced accumulation of NH4 +, and accumulation of proline in the light but not in darkness. Proline accumulation caused by PPT in the light was related to protein hydrolysis, and increase in the contents of precursors of proline, ornithine and arginine. Abscisic acid accumulation was not required for proline accumulation in PPT-treated rice leaves.
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Type
journal article
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