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Titolo:
Response of the antioxidant systems of the nitrogen fixing cyanobacterium Anabaena doliolum to copper
Autore:
Mallick, N; Rai, LC;
Indirizzi:
Banaras Hindu Univ, Dept Bot, Varanasi 221005, Uttar Pradesh, India Banaras Hindu Univ Varanasi Uttar Pradesh India 221005 tar Pradesh, India
Titolo Testata:
JOURNAL OF PLANT PHYSIOLOGY
fascicolo: 1, volume: 155, anno: 1999,
pagine: 146 - 149
SICI:
0176-1617(199907)155:1<146:ROTASO>2.0.ZU;2-E
Fonte:
ISI
Lingua:
ENG
Soggetto:
SUPEROXIDE-DISMUTASE; HYDROGEN-PEROXIDE; OXIDATIVE STRESS; GLUTATHIONE; CHLOROPLAST; MECHANISMS;
Keywords:
Anabaena doliolum; SOD; CAT; APX; GR; lipid peroxidation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
26
Recensione:
Indirizzi per estratti:
Indirizzo: Mallick, N KFA Julich GmbH, Forschungszentrum, ICG-6, D-52425 Julich, Germany KFA Julich GmbH ICG-6 Julich Germany D-52425 5 Julich, Germany
Citazione:
N. Mallick e L.C. Rai, "Response of the antioxidant systems of the nitrogen fixing cyanobacterium Anabaena doliolum to copper", J PLANT PHY, 155(1), 1999, pp. 146-149

Abstract

Different concentrations of copper have been found to produce significant increases in lipid peroxidation, carotenoid contents and activities of antioxidant enzymes like superoxide dismutase and catalase of Anabaena doliolum. In contrast to this, an appreciable decline in the GSH pool and activities of ascorbate peroxidase and glutathione reductase have also been observed. Cu was also found to inhibit chlorophyll a accumulation significantly, although appreciable resumption was observed in cultures supplied with antioxidants exogenously. This study, therefore, suggests that the antioxidant system of this cyanobacterium is not strong enough to withstand copper-induced stress, and this system may show species and stress specific responses.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 04:25:47