16 resultados para fungal reproduction
Filtro por publicador
- Aberdeen University (8)
- Acceda, el repositorio institucional de la Universidad de Las Palmas de Gran Canaria. España (2)
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- Avian Conservation and Ecology - Eletronic Cientific Hournal - Écologie et conservation des oiseaux: (2)
- Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (31)
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- Digitale Sammlungen - Goethe-Universität Frankfurt am Main (3)
- Duke University (10)
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- eResearch Archive - Queensland Department of Agriculture; Fisheries and Forestry (27)
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- INSTITUTO DE PESQUISAS ENERGÉTICAS E NUCLEARES (IPEN) - Repositório Digital da Produção Técnico Científica - BibliotecaTerezine Arantes Ferra (1)
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- RUN (Repositório da Universidade Nova de Lisboa) - FCT (Faculdade de Cienecias e Technologia), Universidade Nova de Lisboa (UNL), Portugal (2)
- SAPIENTIA - Universidade do Algarve - Portugal (3)
- Universidad de Alicante (4)
- Universidad Politécnica de Madrid (8)
- Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP) (3)
- Universidade Federal do Pará (2)
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- Université de Lausanne, Switzerland (7)
- Université de Montréal (2)
- Université de Montréal, Canada (12)
- University of Connecticut - USA (1)
- University of Michigan (63)
- University of Queensland eSpace - Australia (17)
- University of Southampton, United Kingdom (1)
- University of Washington (1)
- WestminsterResearch - UK (4)
- Worcester Research and Publications - Worcester Research and Publications - UK (7)
Resumo:
"We used PCR-DGGE fingerprinting and direct sequencing to analyse the response of fungal and actinobacterial communities to changing hydrological conditions at 3 different sites in a boreal peatland complex in Finland. The experimental design involved a short-term (3 years; STD) and a long-term (43 years; LTD) water-level drawdown. Correspondence analyses of DGGE bands revealed differences in the communities between natural sites representing the nutrient-rich mesotrophic fen, the nutrient-poorer oligotrophic fen, and the nutrient-poor ombrotrophic bog. Still, most fungi and actinobacteria found in the pristine peatland seemed robust to the environmental variables. Both fungal and actinobacterial diversity was higher in the fens than in the bog. Fungal diversity increased significantly after STD whereas actinobacterial diversity did not respond to hydrology. Both fungal and actinobacterial communities became more similar between peatland types after LTD, which was not apparent after STD. Most sequences clustered equally between the two main fungal phyla Ascomycota and Basidiomycota. Sequencing revealed that basidiomycetes may respond more (either positively or negatively) to hydrological changes than ascomycetes. Overall, our results suggest that fungal responses to water-level drawdown depend on peatland type. Actinobacteria seem to be less sensitive to hydrological changes, although the response of some may similarly depend on peatland type. (C) 2009 Elsevier Ltd. All rights reserved."