Effects of cadmium and phenanthrene mixtures on aquatic fungi and microbially mediated leaf litter decomposition
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/21684 |
Resumo: | This version does not correspond to the published one. To access the final version go to: http://www.springerlink.com/content/t8t302617003m078/ |
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Effects of cadmium and phenanthrene mixtures on aquatic fungi and microbially mediated leaf litter decompositionCadmiumPhenanthreneAquatic fungiLeaf litter decompositionScience & TechnologyThis version does not correspond to the published one. To access the final version go to: http://www.springerlink.com/content/t8t302617003m078/Urbanization and industrial activities have contributed to widespread contamination by metals and polycyclic aromatic hydrocarbons, but the combined effects of these toxics on aquatic biota and processes are poorly understood. We examined the effects of cadmium (Cd) and phenanthrene on the activity and diversity of fungi associated with decomposing leaf litter in streams. Leaves of Alnus glutinosa were immersed for 10 days in an unpolluted low-order stream in northwest Portugal to allow microbial colonization. Leaves were then exposed in microcosms for 14 days to Cd (0.06–4.5 mg L−1) and phenanthrene (0.2 mg L−1) either alone or in mixture. A total of 19 aquatic hyphomycete species were found sporulating on leaves during the whole study. The dominant species was Articulospora tetracladia, followed by Alatospora pulchella, Clavatospora longibrachiata, and Tetrachaetum elegans. Exposure to Cd and phenanthrene decreased the contribution of A. tetracladia to the total conidial production, whereas it increased that of A. pulchella. Fungal diversity, assessed as denaturing gradient gel electrophoresis fingerprinting or conidial morphology, was decreased by the exposure to Cd and/or phenanthrene. Moreover, increased Cd concentrations decreased leaf decomposition and fungal reproduction but did not inhibit fungal biomass production. Exposure to phenanthrene potentiated the negative effects of Cd on fungal diversity and activity, suggesting that the co-occurrence of these stressors may pose additional risk to aquatic biodiversity and stream ecosystem functioning.The Portuguese Foundation for the Science and Technology supported this work (POCI/MAR/56964/2004) and S. Duarte (SFRH/BPD/47574/2008)SpringerUniversidade do MinhoMoreirinha, CatarinaDuarte, Sofia Alexandra FerreiraPascoal, CláudiaCássio, Fernanda20112011-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/21684eng0090-434110.1007/s00244-010-9610-620957352http://www.springerlink.com/content/t8t302617003m078/info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:22:12Zoai:repositorium.sdum.uminho.pt:1822/21684Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:15:39.492273Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Effects of cadmium and phenanthrene mixtures on aquatic fungi and microbially mediated leaf litter decomposition |
title |
Effects of cadmium and phenanthrene mixtures on aquatic fungi and microbially mediated leaf litter decomposition |
spellingShingle |
Effects of cadmium and phenanthrene mixtures on aquatic fungi and microbially mediated leaf litter decomposition Moreirinha, Catarina Cadmium Phenanthrene Aquatic fungi Leaf litter decomposition Science & Technology |
title_short |
Effects of cadmium and phenanthrene mixtures on aquatic fungi and microbially mediated leaf litter decomposition |
title_full |
Effects of cadmium and phenanthrene mixtures on aquatic fungi and microbially mediated leaf litter decomposition |
title_fullStr |
Effects of cadmium and phenanthrene mixtures on aquatic fungi and microbially mediated leaf litter decomposition |
title_full_unstemmed |
Effects of cadmium and phenanthrene mixtures on aquatic fungi and microbially mediated leaf litter decomposition |
title_sort |
Effects of cadmium and phenanthrene mixtures on aquatic fungi and microbially mediated leaf litter decomposition |
author |
Moreirinha, Catarina |
author_facet |
Moreirinha, Catarina Duarte, Sofia Alexandra Ferreira Pascoal, Cláudia Cássio, Fernanda |
author_role |
author |
author2 |
Duarte, Sofia Alexandra Ferreira Pascoal, Cláudia Cássio, Fernanda |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Moreirinha, Catarina Duarte, Sofia Alexandra Ferreira Pascoal, Cláudia Cássio, Fernanda |
dc.subject.por.fl_str_mv |
Cadmium Phenanthrene Aquatic fungi Leaf litter decomposition Science & Technology |
topic |
Cadmium Phenanthrene Aquatic fungi Leaf litter decomposition Science & Technology |
description |
This version does not correspond to the published one. To access the final version go to: http://www.springerlink.com/content/t8t302617003m078/ |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011 2011-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/1822/21684 |
url |
http://hdl.handle.net/1822/21684 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0090-4341 10.1007/s00244-010-9610-6 20957352 http://www.springerlink.com/content/t8t302617003m078/ |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Springer |
publisher.none.fl_str_mv |
Springer |
dc.source.none.fl_str_mv |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799132602571948032 |