Plant Cytosolic Ascorbate Peroxidase with Dual Catalytic Activity Modulates Abiotic Stress Tolerances.
Plant Biochemistry
Plant Biology
Plant Evolution
Journal
iScience
ISSN: 2589-0042
Titre abrégé: iScience
Pays: United States
ID NLM: 101724038
Informations de publication
Date de publication:
28 Jun 2019
28 Jun 2019
Historique:
received:
19
07
2018
revised:
10
01
2019
accepted:
09
05
2019
pubmed:
31
5
2019
medline:
31
5
2019
entrez:
31
5
2019
Statut:
ppublish
Résumé
Ascorbic acid-glutathione (AsA-GSH) cycle represents important antioxidant defense system in planta. Here we utilized Oncidium cytosolic ascorbate peroxidase (OgCytAPX) as a model to demonstrate that CytAPX of several plants possess dual catalytic activity of both AsA and GSH, compared with the monocatalytic activity of Arabidopsis APX (AtCytAPX). Structural modeling and site-directed mutagenesis identified that three amino acid residues, Pro
Identifiants
pubmed: 31146130
pii: S2589-0042(19)30151-8
doi: 10.1016/j.isci.2019.05.014
pmc: PMC6542772
pii:
doi:
Types de publication
Journal Article
Langues
eng
Pagination
31-49Informations de copyright
Copyright © 2019 The Authors. Published by Elsevier Inc. All rights reserved.
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