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Titolo:
Hypoxia, hyperoxia and exposure to potassium dichromate or fenitrothion alter the energy metabolism in Chironomus riparius Mg. (Diptera : Chironomidae) larvae
Autore:
Choi, JH; Roche, H; Caquet, T;
Indirizzi:
Univ Paris 11, Lab Ecol & Zool, CNRS, UPRESA 8079, F-91405 Orsay, France Univ Paris 11 Orsay France F-91405 S, UPRESA 8079, F-91405 Orsay, France
Titolo Testata:
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-TOXICOLOGY & PHARMACOLOGY
fascicolo: 1, volume: 130, anno: 2001,
pagine: 11 - 17
SICI:
1532-0456(200109)130:1<11:HHAETP>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
ANTIOXIDANT ENZYME-ACTIVITIES; MARINE PHYTOPLANKTON; ANTHRACINUS DIPTERA; GLYCOGEN; CELLS;
Keywords:
biomarkers; Chironomus riparius; electron transport system; energy-yielding substrates; fenitrothion; hyperoxia; hypoxia; potassium dichromate; short-term response;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Choi, JH Seoul Natl Univ, Dept Pharmacol, Coll Med, Chongno Gu, 28 Yongon Dong, Seoul 110799, South Korea Seoul Natl Univ 28 Yongon Dong Seoul SouthKorea 110799 th Korea
Citazione:
J.H. Choi et al., "Hypoxia, hyperoxia and exposure to potassium dichromate or fenitrothion alter the energy metabolism in Chironomus riparius Mg. (Diptera : Chironomidae) larvae", COMP BIOC C, 130(1), 2001, pp. 11-17

Abstract

Short-term (24 h) effects of four stressors (hypoxia hyperoxia, potassium dichromate, fenitrothion) on the activity of the electron transport system (ETS) and total lipid, glycogen and protein contents were assessed in 4th instar larvae of Chironomus riparius. Hypoxia and hyperoxia caused an increase in ETS activity and protein content. Glycogen content decreased when larvae were placed under hypoxic conditions. ETS activity increased following exposure to 2 mug l(-1) of fenitrothion. It decreased in larvae exposed to 20 mug l(-1) of this insecticide. A decrease in lipid and glycogen contentswas observed in larvae exposed to potassium dichromate or fenitrothion. Changes in ETS activity and lipid and glycogen contents may be related to theactivation of the respiratory chain clue to an increase in energy cost associated with homeostatic phenomena. such as detoxification processes. Theseresults suggest that some parameters related to energy metabolism, such asETS activity and lipid and glycogen contents, may be used as biomarkers ofenvironmental disturbance in Chironomus riparius larvae. (C) 2001 ElsevierScience Inc. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/06/20 alle ore 01:48:45