Physiological and biochemical responses to aluminum-induced oxidative stress in two cyanobacterial species.
Aluminum
/ metabolism
Anabaena
/ metabolism
Antioxidants
/ metabolism
Ascorbic Acid
/ metabolism
Biodegradation, Environmental
Catalase
/ metabolism
Chlorophyll
/ metabolism
Glutathione
/ metabolism
Glutathione Reductase
/ metabolism
Lipid Peroxidation
Nostoc muscorum
/ metabolism
Oxidation-Reduction
Oxidative Stress
/ drug effects
Peroxidases
/ metabolism
Phosphoenolpyruvate Carboxylase
/ metabolism
Photosynthesis
/ drug effects
Ribulose-Bisphosphate Carboxylase
/ metabolism
Aluminum detoxification
Cyanobacteria
Oxidative stress
Photosynthesis reactions
Phycoremediation
Journal
Environmental pollution (Barking, Essex : 1987)
ISSN: 1873-6424
Titre abrégé: Environ Pollut
Pays: England
ID NLM: 8804476
Informations de publication
Date de publication:
Aug 2019
Aug 2019
Historique:
received:
23
12
2018
revised:
23
04
2019
accepted:
08
05
2019
entrez:
26
6
2019
pubmed:
27
6
2019
medline:
29
8
2019
Statut:
ppublish
Résumé
Phycoremediation technologies significantly contribute to solving serious problems induced by heavy metals accumulation in the aquatic systems. Here we studied the mechanisms underlying Al stress tolerance in two diazotrophic cyanobacterial species, to identify suitable species for Al phycoremediation. Al uptake as well as the physiological and biochemical responses of Anabaena laxa and Nostoc muscorum to 7 days Al exposure at two different concentrations i.e., mild (100 μM) and high dose (200 μM), were investigated. Our results revealed that A. laxa accumulated more Al, and it could acclimatize to long-term exposure of Al stress. Al induced a dose-dependent decrease in photosynthesis and its related parameters e.g., chlorophyll content (Chl a), phosphoenolpyruvate carboxylase (PEPC) and Ribulose‒1,5‒bisphosphate carboxylase/oxygenase (RuBisCo) activities. The affect was less pronounced in A. laxa than N. muscorum. Moreover, Al stress significantly increased cellular membrane damage as indicated by induced H
Identifiants
pubmed: 31234263
pii: S0269-7491(18)35749-X
doi: 10.1016/j.envpol.2019.05.036
pii:
doi:
Substances chimiques
Antioxidants
0
Chlorophyll
1406-65-1
Aluminum
CPD4NFA903
Peroxidases
EC 1.11.1.-
Catalase
EC 1.11.1.6
Glutathione Reductase
EC 1.8.1.7
Phosphoenolpyruvate Carboxylase
EC 4.1.1.31
Ribulose-Bisphosphate Carboxylase
EC 4.1.1.39
Glutathione
GAN16C9B8O
Ascorbic Acid
PQ6CK8PD0R
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
961-969Informations de copyright
Copyright © 2019. Published by Elsevier Ltd.