Molecular and biochemical analysis of XDH from Phaseolus vulgaris suggest that uric acid protects the enzyme against the inhibitory effects of nitric oxide in nodules

Copyright © 2019 The Authors. Published by Elsevier Masson SAS.. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Plant physiology and biochemistry : PPB. - 1991. - 143(2019) vom: 01. Okt., Seite 364-374
1. Verfasser: Coleto, Inmaculada (VerfasserIn)
Weitere Verfasser: Pineda, Manuel, Alamillo, Josefa M
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2019
Zugriff auf das übergeordnete Werk:Plant physiology and biochemistry : PPB
Schlagworte:Journal Article Common bean Nitric oxide Posttranscriptional regulation Stress response Uric acid Xanthine oxidoreductase Uric Acid 268B43MJ25 Nitric Oxide mehr... 31C4KY9ESH Xanthine Dehydrogenase EC 1.17.1.4
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245 1 0 |a Molecular and biochemical analysis of XDH from Phaseolus vulgaris suggest that uric acid protects the enzyme against the inhibitory effects of nitric oxide in nodules 
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500 |a ErratumIn: Plant Physiol Biochem. 2020 Jan;146:463-464. - PMID 31786015 
500 |a Citation Status MEDLINE 
520 |a Copyright © 2019 The Authors. Published by Elsevier Masson SAS.. All rights reserved. 
520 |a Xanthine dehydrogenase (XDH) is essential for the assimilation of symbiotically fixed nitrogen in ureidic legumes. Uric acid, produced in the reaction catalyzed by XDH, is the precursor of the ureides, allantoin and allantoate, which are the main N-transporting molecules in these plants. XDH and uric acid have been reported to be involved in the response to stress, both in plants and animals. However, the physiological role of XDH under stressful conditions in ureidic legumes remains largely unexplored. In vitro assays showed that Phaseolus vulgaris XDH (PvXDH) can behave as a dehydrogenase or as an oxidase. Therefore, it could potentially protect against oxidative radicals or, in contrast, it could increase their production. In silico analysis of the upstream genomic region of XDH coding gene from P. vulgaris revealed the presence of several stress-related cis-regulatory elements. PvXDH mRNA and enzymatic activity in plants treated with stress-related phytohormones or subjected to dehydration and stressful temperatures showed several fold induction. However, PvXDH activity was in vivo and in vitro inhibited by nitric oxide in leaves but not in nodules. In extracts from RNAi PvXDH silenced nodules, with lower levels of uric acid, XDH activity was inhibited by SNP which indicates that uric acid produced by XDH in the nodules of this ureidic legume could help to protect XDH against the inhibitory effects of nitric oxide 
650 4 |a Journal Article 
650 4 |a Common bean 
650 4 |a Nitric oxide 
650 4 |a Posttranscriptional regulation 
650 4 |a Stress response 
650 4 |a Uric acid 
650 4 |a Xanthine oxidoreductase 
650 7 |a Uric Acid  |2 NLM 
650 7 |a 268B43MJ25  |2 NLM 
650 7 |a Nitric Oxide  |2 NLM 
650 7 |a 31C4KY9ESH  |2 NLM 
650 7 |a Xanthine Dehydrogenase  |2 NLM 
650 7 |a EC 1.17.1.4  |2 NLM 
700 1 |a Pineda, Manuel  |e verfasserin  |4 aut 
700 1 |a Alamillo, Josefa M  |e verfasserin  |4 aut 
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