Are the rhizosphere fungal communities of Nothofagus alpina established in two different environments influenced by plant genetic diversity?
Fungi are one of the most important soil microorganisms due to their abundance and the importance of the ecosystem processes they carry out, like decomposition, nutrient cycling, and the establishment of biological interactions such as mycorrhizas. Fungi can be used as bioindicators because they are...
| Main Authors: | , , , , |
|---|---|
| Format: | Artículo |
| Language: | Inglés |
| Published: |
Elsevier
2020
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.12123/7428 https://www.sciencedirect.com/science/article/abs/pii/S0378112720310380 https://doi.org/10.1016/j.foreco.2020.118269 |
| _version_ | 1855484007624474624 |
|---|---|
| author | Fernandez, Natalia Veronica Marchelli, Paula Tenreiro, Rogério Chaves, Sandra Fontenla, Sonia Beatriz |
| author_browse | Chaves, Sandra Fernandez, Natalia Veronica Fontenla, Sonia Beatriz Marchelli, Paula Tenreiro, Rogério |
| author_facet | Fernandez, Natalia Veronica Marchelli, Paula Tenreiro, Rogério Chaves, Sandra Fontenla, Sonia Beatriz |
| author_sort | Fernandez, Natalia Veronica |
| collection | INTA Digital |
| description | Fungi are one of the most important soil microorganisms due to their abundance and the importance of the ecosystem processes they carry out, like decomposition, nutrient cycling, and the establishment of biological interactions such as mycorrhizas. Fungi can be used as bioindicators because they are highly sensitive to alterations in their surroundings, thus being useful for monitoring ecological changes and effects of human activity on natural ecosystems. Nothofagus alpina (raulí) is an ecologically and economically important species of South American temperate forests. It is currently included in domestication and conservation programs, and provenance
trials have been installed in different ecosystems of Patagonia. These trials are ideal for studying how tree genetics might influence the associated microbiota. Afforestation with fast-growing exotic conifers (mainly Pinus ponderosa) had been promoted as an important economic activity in Patagonia, but nowadays there is an increasing interest for the establishment of mix Pinus + Nothofagus plantations instead of monospecific Pinus stands and for using Pinus plantations as refugee for assisted Nothofagus migration. The main objective of this work was to explore the structure of different fungal communities in the rhizosphere of N. alpina with different genetic diversity (high, intermediate, and low) implanted under a native Nothofagus forest and a P. ponderosa
plantation. Fingerprinting based on Temperature Gradient Gel Electrophoresis revealed differences in the structure of the rhizosphere fungal communities. Some relationships between N. alpina genetic diversity and composition of rhizosphere fungal communities were observed. In the native forest, one of the provenances (intermediate genetic diversity) was associated with the highest richness of Basidiomycetes and total fungi. In addition, individual genetic parameters of N. alpina specimens implanted in the native forest significantly correlated with Ascomycetes richness. It was also found that Basidiomycetes were the dominating fungal taxa in the
native forest, and Ascomycetes in the P. ponderosa plantation. Factors as soil physicochemical characteristics and the dominant forestry species, which provide different quantity and quality of litter inputs and are associated with different ectomycorrhizal fungi, seemed to be the main factors determining this significant difference between the native forest and the plantation. Beyond highlighting the potential of applying soil fungi as bioindicators, our study contributes to understanding the relationship between host genetics and rhizosphere fungi. This information is relevant not only for conservation and restoration programs, but also for taking management
decisions related with sustainable forestry and domestication of native tree species. |
| format | Artículo |
| id | INTA7428 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | INTA74282020-06-17T16:45:24Z Are the rhizosphere fungal communities of Nothofagus alpina established in two different environments influenced by plant genetic diversity? Fernandez, Natalia Veronica Marchelli, Paula Tenreiro, Rogério Chaves, Sandra Fontenla, Sonia Beatriz Hongos Hongos del Suelo Organismos Indicadores Nothofagus Pinus Fungi Soil Fungi Indicator Organisms Región Patagónica Bioindicadores Nothofagus Alpina Fungi are one of the most important soil microorganisms due to their abundance and the importance of the ecosystem processes they carry out, like decomposition, nutrient cycling, and the establishment of biological interactions such as mycorrhizas. Fungi can be used as bioindicators because they are highly sensitive to alterations in their surroundings, thus being useful for monitoring ecological changes and effects of human activity on natural ecosystems. Nothofagus alpina (raulí) is an ecologically and economically important species of South American temperate forests. It is currently included in domestication and conservation programs, and provenance trials have been installed in different ecosystems of Patagonia. These trials are ideal for studying how tree genetics might influence the associated microbiota. Afforestation with fast-growing exotic conifers (mainly Pinus ponderosa) had been promoted as an important economic activity in Patagonia, but nowadays there is an increasing interest for the establishment of mix Pinus + Nothofagus plantations instead of monospecific Pinus stands and for using Pinus plantations as refugee for assisted Nothofagus migration. The main objective of this work was to explore the structure of different fungal communities in the rhizosphere of N. alpina with different genetic diversity (high, intermediate, and low) implanted under a native Nothofagus forest and a P. ponderosa plantation. Fingerprinting based on Temperature Gradient Gel Electrophoresis revealed differences in the structure of the rhizosphere fungal communities. Some relationships between N. alpina genetic diversity and composition of rhizosphere fungal communities were observed. In the native forest, one of the provenances (intermediate genetic diversity) was associated with the highest richness of Basidiomycetes and total fungi. In addition, individual genetic parameters of N. alpina specimens implanted in the native forest significantly correlated with Ascomycetes richness. It was also found that Basidiomycetes were the dominating fungal taxa in the native forest, and Ascomycetes in the P. ponderosa plantation. Factors as soil physicochemical characteristics and the dominant forestry species, which provide different quantity and quality of litter inputs and are associated with different ectomycorrhizal fungi, seemed to be the main factors determining this significant difference between the native forest and the plantation. Beyond highlighting the potential of applying soil fungi as bioindicators, our study contributes to understanding the relationship between host genetics and rhizosphere fungi. This information is relevant not only for conservation and restoration programs, but also for taking management decisions related with sustainable forestry and domestication of native tree species. Estación Experimental Agropecuaria Bariloche Fil: Fernandez, Natalia Veronica. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche. Laboratorio de Microbiología Aplicada y Biotecnología; Argentina Fil: Marchelli, Paula. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentina Fil: Tenreiro, Rogério. Universidade de Lisboa. Faculdade de Ciências, Biosystems and Integrative Sciences Institute; Portugal Fil: Chaves, Sandra. Universidade de Lisboa. Faculdade de Ciências, Biosystems and Integrative Sciences Institute; Portugal Fil: Fontenla, Sonia Beatriz. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche. Laboratorio de Microbiología Aplicada y Biotecnología; Argentina 2020-06-17T16:32:39Z 2020-06-17T16:32:39Z 2020-10 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/7428 https://www.sciencedirect.com/science/article/abs/pii/S0378112720310380 0378-1127 https://doi.org/10.1016/j.foreco.2020.118269 eng info:eu-repo/semantics/restrictedAccess application/pdf Elsevier Forest Ecology and Management 473 : 118269 (2020) |
| spellingShingle | Hongos Hongos del Suelo Organismos Indicadores Nothofagus Pinus Fungi Soil Fungi Indicator Organisms Región Patagónica Bioindicadores Nothofagus Alpina Fernandez, Natalia Veronica Marchelli, Paula Tenreiro, Rogério Chaves, Sandra Fontenla, Sonia Beatriz Are the rhizosphere fungal communities of Nothofagus alpina established in two different environments influenced by plant genetic diversity? |
| title | Are the rhizosphere fungal communities of Nothofagus alpina established in two different environments influenced by plant genetic diversity? |
| title_full | Are the rhizosphere fungal communities of Nothofagus alpina established in two different environments influenced by plant genetic diversity? |
| title_fullStr | Are the rhizosphere fungal communities of Nothofagus alpina established in two different environments influenced by plant genetic diversity? |
| title_full_unstemmed | Are the rhizosphere fungal communities of Nothofagus alpina established in two different environments influenced by plant genetic diversity? |
| title_short | Are the rhizosphere fungal communities of Nothofagus alpina established in two different environments influenced by plant genetic diversity? |
| title_sort | are the rhizosphere fungal communities of nothofagus alpina established in two different environments influenced by plant genetic diversity |
| topic | Hongos Hongos del Suelo Organismos Indicadores Nothofagus Pinus Fungi Soil Fungi Indicator Organisms Región Patagónica Bioindicadores Nothofagus Alpina |
| url | http://hdl.handle.net/20.500.12123/7428 https://www.sciencedirect.com/science/article/abs/pii/S0378112720310380 https://doi.org/10.1016/j.foreco.2020.118269 |
| work_keys_str_mv | AT fernandeznataliaveronica aretherhizospherefungalcommunitiesofnothofagusalpinaestablishedintwodifferentenvironmentsinfluencedbyplantgeneticdiversity AT marchellipaula aretherhizospherefungalcommunitiesofnothofagusalpinaestablishedintwodifferentenvironmentsinfluencedbyplantgeneticdiversity AT tenreirorogerio aretherhizospherefungalcommunitiesofnothofagusalpinaestablishedintwodifferentenvironmentsinfluencedbyplantgeneticdiversity AT chavessandra aretherhizospherefungalcommunitiesofnothofagusalpinaestablishedintwodifferentenvironmentsinfluencedbyplantgeneticdiversity AT fontenlasoniabeatriz aretherhizospherefungalcommunitiesofnothofagusalpinaestablishedintwodifferentenvironmentsinfluencedbyplantgeneticdiversity |