Document Detail


Fungi ingestion as an important factor influencing heavy metal intake in roe deer: evidence from faeces.
MedLine Citation:
PMID:  15081708     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In nature, animals have to cope with the fluctuating bioavailable metal pool in their habitat, which results in a seasonal variability of heavy metal levels in the animal body. Indeed, a pronounced summer-autumnal peak of heavy metals in roe deer (Capreolus capreolus L.) kidney was recently found in Slovenia. Considering the well-known hyperaccumulative ability of fungi, their ingestion was hypothesised to be one of the main reasons for the peak. Although fungi as a group are known to be a seasonally important food source for roe deer, data on their composition in the nutrition of the species have been lacking. To ascertain the importance of fungi ingestion on heavy metal intake in roe deer, we simultaneously studied fungal spores (by microscopic determination) and heavy metal levels (by inductively coupled plasma mass spectrometry and atomic absorption spectrometry) in roe deer faeces, collected in the period July-November 2001 at Veliki Vrh, the Salek Valley, Slovenia. Irrespective of species, fungal spores were present in 89% of faeces; the following genera were found to be consumed by roe deer: Lycoperdon, Calvatia, Hypholoma, Coprinus, Russula, Elaphomyces, Xerocomus, Enteloma, Amanita, Cortinarius, Agaricus, Inocybe, Boletus, Macrolepiota, Suillus and Pluteus. While the importance of fungi ingestion on the seasonal variability of other metals is less clear, it doubtless influences Hg intake in roe deer, which is confirmed by: (a) the high frequency of fungi in roe deer nutrition; (b) their hyperaccumulative ability; (c) the temporal distribution of Hg in roe deer faeces; (d) differences among three classes of faeces established on the basis of the frequency of spores present; (e) the correlation between the number of fungal genera present and Hg levels in faeces. Therefore, the influence of fungi ingestion has to be taken into consideration in assessing the hazard due to the accumulation of mercury along the food-chain.
Authors:
Bostjan Pokorny; Samar Al Sayegh-Petkovsek; Cvetka Ribaric-Lasnik; Jaroslav Vrtacnik; Darinka Z Doganoc; Miha Adamic
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Science of the total environment     Volume:  324     ISSN:  0048-9697     ISO Abbreviation:  Sci. Total Environ.     Publication Date:  2004 May 
Date Detail:
Created Date:  2004-04-14     Completed Date:  2004-06-01     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0330500     Medline TA:  Sci Total Environ     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  223-34     Citation Subset:  IM    
Affiliation:
ERICo Velenje, Ecological Research and Industrial Co-operation, Koroska 58, 3320 Velenje, Slovenia. bostjan.pokorny@erico.si
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MeSH Terms
Descriptor/Qualifier:
Animals
Biological Availability
Deer / physiology*
Diet
Environmental Pollutants / pharmacokinetics*
Feces / chemistry,  microbiology
Fungi / chemistry*
Metals, Heavy / pharmacokinetics*
Seasons
Spores
Tissue Distribution
Chemical
Reg. No./Substance:
0/Environmental Pollutants; 0/Metals, Heavy

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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