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Titolo:
STUDIES ON METAL RESISTANCE SYSTEM IN KLUYVEROMYCES-MARXIANUS
Autore:
YAZGAN A; OZCENGIZ G; ALAEDDINOGLU NG;
Indirizzi:
MIDDLE E TECH UNIV,DEPT BIOL SCI ANKARA 06531 TURKEY MIDDLE E TECH UNIV,DEPT BIOL SCI ANKARA 06531 TURKEY
Titolo Testata:
Biological trace element research
fascicolo: 2, volume: 38, anno: 1993,
pagine: 117 - 127
SICI:
0163-4984(1993)38:2<117:SOMRSI>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
BINDING PROTEIN; PROKARYOTIC METALLOTHIONEIN; ALGAL BIOMASS; FISSION YEAST; CADMIUM; GENE; MICROORGANISMS; ACCUMULATION; EXPRESSION; REMOVAL;
Keywords:
METAL RESISTANCE; METALLOTHIONEIN; METAL BIOSORPTION; SACCHAROMYCES-CEREVISIAE; KLUYVEROMYCES-MARXIANUS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
28
Recensione:
Indirizzi per estratti:
Citazione:
A. Yazgan et al., "STUDIES ON METAL RESISTANCE SYSTEM IN KLUYVEROMYCES-MARXIANUS", Biological trace element research, 38(2), 1993, pp. 117-127

Abstract

Through preliminary plate tests, Kluyveromyces marxianus was found tobe much more resistant to toxic heavy metals compared to a CUP1R strain of Saccharomyces cerevisiae. Specific growth rate and maximum dry weights affected by increasing metal concentrations were determined to obtain precise patterns of resistance. Metal biosorption was also monitored during the course of growth in synthetic media containing respective metals at 0.5 mM final concentration. Although Zn- and Co-bindingwas negligible, as much as 90% of silver, 60% of copper, and 65% of cadmium were found to be absorbed by the end of active growth. Analysisof the protein profiles of S. cerevisiae and K. marxianus on metal exposure suggested constitutive production of metallothionein in K. marxianus. Furthermore, a smaller protein synthesized by K. marxianus on induction by silver or cadmium accounts for the high resistance of the organism to these metals.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/09/20 alle ore 04:00:07