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Titolo:
INVOLVEMENT OF A CADMIUM-INDUCED LOW-MOLECULAR-WEIGHT PROTEIN IN REGULATING CADMIUM TOXICITY IN THE DIAZOTROPHIC CYANOBACTERIUM ANABAENA-DOLIOLUM
Autore:
MALLICK N; PANDEY S; RAI LC;
Indirizzi:
BANARAS HINDU UNIV,CTR ADV STUDY BOT,ALGAL BIOL LAB VARANASI 221005 UTTAR PRADESH INDIA BANARAS HINDU UNIV,CTR ADV STUDY BOT,ALGAL BIOL LAB VARANASI 221005 UTTAR PRADESH INDIA
Titolo Testata:
BioMetals
fascicolo: 4, volume: 7, anno: 1994,
pagine: 299 - 304
SICI:
0966-0844(1994)7:4<299:IOACLP>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
METAL-BINDING PEPTIDES; PROKARYOTIC METALLOTHIONEIN; HEAVY-METALS; STRESS; PHYTOCHELATINS; GLUTATHIONE; PLANTS;
Keywords:
CADMIUM-INDUCIBLE LOW MOLECULAR WEIGHT PROTEIN; ANABAENA DOLIOLUM; GLUTATHIONE; ATPASE; ALKALINE PHOSPHATASE; NITROGENASE; BUTHIONINE SULFOXIMINE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
34
Recensione:
Indirizzi per estratti:
Citazione:
N. Mallick et al., "INVOLVEMENT OF A CADMIUM-INDUCED LOW-MOLECULAR-WEIGHT PROTEIN IN REGULATING CADMIUM TOXICITY IN THE DIAZOTROPHIC CYANOBACTERIUM ANABAENA-DOLIOLUM", BioMetals, 7(4), 1994, pp. 299-304

Abstract

This study demonstrated the production of a cadmium-induced low molecular weight (3.5 kDa), buthionine sulfoximine (BSO) sensitive protein in Anabaena doliolum. Production of this protein was accompanied by a decrease in the glutathione level of the cell. Cadmium was found to bedifferentially toxic to carbon fixation, O-2 evolution, ATP content, nitrate reductase, nitrogenase, alkaline phosphatase and ATPase of control (untreated), BSO, cadmium and (cadmium + BSO) pre-treated A. doliolum. Toxicity was maximum in BSO-grown cells followed be control (untreated), cadmium + BSO and least in cadmium-grown A. doliolum. Cadmiumand (cadmium + BSO)-grown cells registered an increased lipid production, reduced metal uptake and low K+, Na+ loss. In spite of equal cadmium uptake rates, a significant difference in toxicity between cadmium-grown and (cadmium + BSO)-grown cultures was, however, noticed. Better performance of physiological and biochemical variables of cadmium-grown A. doliolum and its tolerance to cadmium could be due to the synthesis of low molecular weight cadmium binding protein (presumably phytochelatin) as well as an increased production of lipid.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/07/20 alle ore 07:18:15