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Author |
Schimann, H.; Bach, C.; Lengelle, J.; Louisanna, E.; Barantal, S.; Murat, C.; Buée, M. |
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Title |
Diversity and Structure of Fungal Communities in Neotropical Rainforest Soils: The Effect of Host Recurrence |
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Journal Article |
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2017 |
Publication |
Microbial Ecology |
Abbreviated Journal |
Microbial Ecology |
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73 |
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2 |
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310-320 |
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Amazonian forest; Fungal communities; Host recurrence; Litter; Second-generation sequencing; Soil |
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Abstract |
The patterns of the distribution of fungal species and their potential interactions with trees remain understudied in Neotropical rainforests, which harbor more than 16,000 tree species, mostly dominated by endomycorrhizal trees. Our hypothesis was that tree species shape the non-mycorrhizal fungal assemblages in soil and litter and that the diversity of fungal communities in these two compartments is partly dependent on the coverage of trees in the Neotropical rainforest. In French Guiana, a long-term plantation and a natural forest were selected to test this hypothesis. Fungal ITS1 regions were sequenced from soil and litter samples from within the vicinity of tree species. A broad range of fungal taxa was found, with 42 orders and 14 classes. Significant spatial heterogeneity in the fungal communities was found without strong variation in the species richness and evenness among the tree plots. However, tree species shaped the fungal assemblages in the soil and litter, explaining up to 18 % of the variation among the communities in the natural forest. These results demonstrate that vegetation cover has an important effect on the structure of fungal assemblages inhabiting the soil and litter in Amazonian forests, illustrating the relative impact of deterministic processes on fungal community structures in these highly diverse ecosystems. © 2016, Springer Science+Business Media New York. |
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Equipe Environnement et Microbiologie, Institut Pluridisciplinaire de Recherche en Environnement et Matériaux, Université de Pau et Pays de l’Adour, Pau, France |
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Export Date: 19 February 2017 |
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no |
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EcoFoG @ webmaster @ |
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734 |
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