Metabolic and biochemical responses of Potamogeton anguillanus Koidz. (Potamogetonaceae) to low oxygen conditions.
Amino acid
Anoxia
Hydrogen peroxide
Hypoxia
Potamogeton anguillanus
Journal
Journal of plant physiology
ISSN: 1618-1328
Titre abrégé: J Plant Physiol
Pays: Germany
ID NLM: 9882059
Informations de publication
Date de publication:
Jan 2019
Jan 2019
Historique:
received:
28
04
2017
revised:
21
02
2018
accepted:
19
11
2018
pubmed:
12
12
2018
medline:
23
1
2019
entrez:
12
12
2018
Statut:
ppublish
Résumé
Oxygen availability in water is considered one of the most important factors for growth and productivity in aquatic submerged macrophytes. In the present study, the growth, stress responses, and metabolic changes in Potamogeton anguillanus Koidz. (Potamogetonaceae) were assessed after a 21-day exposure to low (hypoxia; dissolved oxygen, DO < 1 mg/L) or null (anoxia) oxygen concentrations in water. High growth rates and an increased indole acetic acid (IAA) content in P. anguillanus were observed under the hypoxic conditions (4-fold to control) compared to the anoxic conditions. In addition, the activation of glycolysis and fermentation processes was further recorded, given the increase in alcohol dehydrogenase activity and pyruvate concentration on the studied plants that were exposed to low oxygen concentrations. Moreover, the positive correlations of antioxidative enzyme activities, catalase (CAT) and guaiacol peroxidase (POD) with hydrogen peroxide (H
Identifiants
pubmed: 30537604
pii: S0176-1617(18)30773-9
doi: 10.1016/j.jplph.2018.11.023
pii:
doi:
Substances chimiques
Indoleacetic Acids
0
indoleacetic acid
6U1S09C61L
Pyruvic Acid
8558G7RUTR
Hydrogen Peroxide
BBX060AN9V
Alcohol Dehydrogenase
EC 1.1.1.1
guaiacol peroxidase
EC 1.11.1.-
Catalase
EC 1.11.1.6
Peroxidase
EC 1.11.1.7
Oxygen
S88TT14065
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
171-179Informations de copyright
Copyright © 2018 Elsevier GmbH. All rights reserved.