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UPTAKE OF CADMIUM IONS IN WHITE-ROT FUNGUS TRAMETES VERSICOLOR: EFFECT OF CD (II) IONS ON THE ACTIVITY OF LACCASE
- Source :
-
Cell Biology International . Jul2002, Vol. 26 Issue 7, p605. 9p. - Publication Year :
- 2002
-
Abstract
- The effects of cadmium Cd (II) ions on the physiology and biological activity of Trametes versicolor, a strain belonging to white-rotting Basidiomycetes, were examined. Cd (II) ions were added to 10-day-old cultures grown on a liquid medium, or at the time of inoculation. Our experiments showed that T. versicolor is a good cadmium biosorbent from aqueous solution, this strain removing almost all the Cd (ll) ions over the first 2 h of incubation by what appears to be a rapid, energy-independent surface binding phenomenon, at the rate of ∼2 mg Cd per g mycelial dry weight. An additional slower and energy-dependent transport mechanism was also present, taking in ∼0.3 mg Cd (II) per g dry weight. It is also shown that these Cd (II) ions significantly stimulate the activity of extracellular laccase when added to 10-day-old cultures. [Copyright &y& Elsevier]
- Subjects :
- *CADMIUM
*LACCASE
*BASIDIOMYCETES
Subjects
Details
- Language :
- English
- ISSN :
- 10656995
- Volume :
- 26
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Cell Biology International
- Publication Type :
- Academic Journal
- Accession number :
- 8507833
- Full Text :
- https://doi.org/10.1006/cbir.2002.0887