| Full text | |
| Author(s): |
Total Authors: 2
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| Affiliation: | [1] Univ Sao Paulo, Inst Quim, BR-05599970 Sao Paulo - Brazil
Total Affiliations: 1
|
| Document type: | Journal article |
| Source: | Environmental Toxicology and Chemistry; v. 29, n. 2, p. 320-326, 2010. |
| Field of knowledge: | Biological Sciences - Biophysics |
| Web of Science Citations: | 12 |
| Abstract | |
Metal cation toxicity to basidiomycete fungi is poorly understood, despite its well-known importance in terrestrial ecosystems. Moreover, there is no reported methodology for the routine evaluation of metal toxicity to basidiomycetes. In the present study, we describe the development of a procedure to assess the acute toxicity of metal cations (Na+, K+, Li+, Ca2+, Mg2+, Co2+, Zn2+, Ni2+, Mn2+, Cd2+, and Cu2+) to the bioluminescent basidiomycete fungus Gerronema viridilucens. The method is based on the decrease in the intensity of bioluminescence resulting from injuries sustained by the fungus mycelium exposed to either essential or nonessential metal toxicants. The assay described herein enables us to propose a metal toxicity series to Gerronema viridilucens based on data obtained from the bioluminescence intensity (median effective concentration [EC50] values) versus metal concentration: Cd2+ > Cu2+ > Mn2+ ~ Ni2+ ~ Co2+ > Zn2+ > Mg2+ > Li+ > K+ ~ Na+ > Ca2+, and to shed some light on the mechanism of toxic ction of metal cations to basidiomycete fungi. (AU) | |
| FAPESP's process: | 06/53628-3 - Estudo da bioluminescencia de fungos e suas aplicacoes em quimica ambiental. |
| Grantee: | Cassius Vinicius Stevani |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 01/04753-6 - Bioluminescencia e atividade farmacologica de cogumelos. |
| Grantee: | Cassius Vinicius Stevani |
| Support Opportunities: | Research Grants - Young Investigators Grants |