Stereoselective toxicity of metconazole to the antioxidant defenses and the photosynthesis system of Chlorella pyrenoidosa.
Antioxidant defenses
Metconazole
Photosynthesis system
Reactive oxygen species
Stereoselectivity
Journal
Aquatic toxicology (Amsterdam, Netherlands)
ISSN: 1879-1514
Titre abrégé: Aquat Toxicol
Pays: Netherlands
ID NLM: 8500246
Informations de publication
Date de publication:
May 2019
May 2019
Historique:
received:
05
11
2018
revised:
22
02
2019
accepted:
22
02
2019
pubmed:
10
3
2019
medline:
10
5
2019
entrez:
10
3
2019
Statut:
ppublish
Résumé
Metconazole (MEZ) is a broad-spectrum fungicide with four optical stereoisomers. Compared to traditional fungicides, it achieves better control effect at lower dosages. However, its toxicity to non-target organisms has rarely been investigated. This study investigated the stereoselective toxicity of metconazole to Chlorella pyrenoidosa (C. pyrenoidosa). The results indicate that the presence of the racemate and four stereoisomers of MEZ caused a sudden increase of reactive oxygen species (ROS). This in turn stimulated antioxidant defense, impaired photosynthesis and responses of subcellular structure, and eventually inhibited cell growth. The 96 h-EC
Identifiants
pubmed: 30851487
pii: S0166-445X(18)30977-9
doi: 10.1016/j.aquatox.2019.02.017
pii:
doi:
Substances chimiques
Antioxidants
0
Fungicides, Industrial
0
Reactive Oxygen Species
0
Triazoles
0
Water Pollutants, Chemical
0
metconazole
A2F791945Q
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
129-138Informations de copyright
Copyright © 2019 Elsevier B.V. All rights reserved.