| Impact of heavy metals on water loss from lichen thalli. | |
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MedLine Citation:
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PMID: 9262949 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Water loss in lichen species Cladonia convoluta (Lam.) and C. rangiformis (L.) Hoffm. after exposure to heavy-metal (Pb, Cu, or Zn) solutions, either as single compounds or in combination, have been studied in this laboratory. Water loss was reduced in Pb-treated C. convoluta, whereas in C. rangiformis it increased significantly with 10(-2) M Pb treatment. Water loss increased significantly (P = 0.05) after Cu treatment in C. convoluta but was significantly reduced (P = 0.05) in 10(-8) and 10(-6) M CuCl2-treated C. rangiformis. Similarly, water loss increased in all Zn-treated thalli but was significantly decreased (P = 0.05) in 10(-8) M treated C. rangiformis. A cumulative effect of Pb, Cu, and Zn was observed on water loss after uptake from mixed-metal solution. K+ efflux indicated the extent to which the plasma membrane presents an effective barrier to metal ion uptake. |
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Authors:
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M K Chettri; T Sawidis |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Ecotoxicology and environmental safety Volume: 37 ISSN: 0147-6513 ISO Abbreviation: Ecotoxicol. Environ. Saf. Publication Date: 1997 Jul |
Date Detail:
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Created Date: 1997-09-23 Completed Date: 1997-09-23 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 7805381 Medline TA: Ecotoxicol Environ Saf Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 103-11 Citation Subset: IM |
Affiliation:
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Department of Botany, University of Thessaloniki, Macedonia, Greece. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Biological Transport Copper / pharmacology Lead / pharmacology Lichens / drug effects, metabolism* Linear Models Metals, Heavy / pharmacology* Potassium / metabolism Water / metabolism* Zinc / pharmacology |
| Chemical | |
Reg. No./Substance:
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0/Metals, Heavy; 7439-92-1/Lead; 7440-09-7/Potassium; 7440-50-8/Copper; 7440-66-6/Zinc; 7732-18-5/Water |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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