Lack of Phylogenetic Differences in Ectomycorrhizal Fungi among Distinct Mediterranean Pine Forest Habitats
Understanding whether the occurrences of ectomycorrhizal species in a given tree host are phylogenetically determined can help in assessing different conservational needs for each fungal species. In this study, we characterized ectomycorrhizal phylogenetic composition and phylogenetic structure in 4...
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| Format: | Article |
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MDPI AG
2021-09-01
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| Series: | Journal of Fungi |
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| Online Access: | https://www.mdpi.com/2309-608X/7/10/793 |
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| author | Irene Adamo Carles Castaño José Antonio Bonet Carlos Colinas Juan Martínez de Aragón Josu G. Alday |
| author_facet | Irene Adamo Carles Castaño José Antonio Bonet Carlos Colinas Juan Martínez de Aragón Josu G. Alday |
| author_sort | Irene Adamo |
| collection | DOAJ |
| description | Understanding whether the occurrences of ectomycorrhizal species in a given tree host are phylogenetically determined can help in assessing different conservational needs for each fungal species. In this study, we characterized ectomycorrhizal phylogenetic composition and phylogenetic structure in 42 plots with five different Mediterranean pine forests: i.e., pure forests dominated by <i>P. nigra</i>, <i>P. halepensis</i>, and <i>P. sylvestris</i>, and mixed forests of <i>P. nigra-P. halepensis</i> and <i>P. nigra-P. sylvestris</i>, and tested whether the phylogenetic structure of ectomycorrhizal communities differs among these. We found that ectomycorrhizal communities were not different among pine tree hosts neither in phylogenetic composition nor in structure and phylogenetic diversity. Moreover, we detected a weak abiotic filtering effect (4%), with pH being the only significant variable influencing the phylogenetic ectomycorrhizal community, while the phylogenetic structure was slightly influenced by the shared effect of stand structure, soil, and geographic distance. However, the phylogenetic community similarity increased at lower pH values, supporting that fewer, closely related species were found at lower pH values. Also, no phylogenetic signal was detected among exploration types, although short and contact were the most abundant types in these forest ecosystems. Our results demonstrate that pH but not tree host, acts as a strong abiotic filter on ectomycorrhizal phylogenetic communities in Mediterranean pine forests at a local scale. Finally, our study shed light on dominant ectomycorrhizal foraging strategies in drought-prone ecosystems such as Mediterranean forests. |
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| id | doaj.art-8931ac5f911b4de7a043b4fc4f3a36ab |
| institution | Directory Open Access Journal |
| issn | 2309-608X |
| language | English |
| last_indexed | 2024-03-10T06:28:00Z |
| publishDate | 2021-09-01 |
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| series | Journal of Fungi |
| spelling | doaj.art-8931ac5f911b4de7a043b4fc4f3a36ab2023-11-22T18:46:32ZengMDPI AGJournal of Fungi2309-608X2021-09-0171079310.3390/jof7100793Lack of Phylogenetic Differences in Ectomycorrhizal Fungi among Distinct Mediterranean Pine Forest HabitatsIrene Adamo0Carles Castaño1José Antonio Bonet2Carlos Colinas3Juan Martínez de Aragón4Josu G. Alday5Joint Research Unit CTFC-AGROTECNIO-CERCA, Av. Alcalde Rovira Roure 191, E25198 Lleida, SpainDepartment of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, SE-75007 Uppsala, SwedenJoint Research Unit CTFC-AGROTECNIO-CERCA, Av. Alcalde Rovira Roure 191, E25198 Lleida, SpainDepartment of Crop and Forest Sciences, University of Lleida, Av. Alcalde Rovira Roure 191, E25198 Lleida, SpainJoint Research Unit CTFC-AGROTECNIO-CERCA, Av. Alcalde Rovira Roure 191, E25198 Lleida, SpainJoint Research Unit CTFC-AGROTECNIO-CERCA, Av. Alcalde Rovira Roure 191, E25198 Lleida, SpainUnderstanding whether the occurrences of ectomycorrhizal species in a given tree host are phylogenetically determined can help in assessing different conservational needs for each fungal species. In this study, we characterized ectomycorrhizal phylogenetic composition and phylogenetic structure in 42 plots with five different Mediterranean pine forests: i.e., pure forests dominated by <i>P. nigra</i>, <i>P. halepensis</i>, and <i>P. sylvestris</i>, and mixed forests of <i>P. nigra-P. halepensis</i> and <i>P. nigra-P. sylvestris</i>, and tested whether the phylogenetic structure of ectomycorrhizal communities differs among these. We found that ectomycorrhizal communities were not different among pine tree hosts neither in phylogenetic composition nor in structure and phylogenetic diversity. Moreover, we detected a weak abiotic filtering effect (4%), with pH being the only significant variable influencing the phylogenetic ectomycorrhizal community, while the phylogenetic structure was slightly influenced by the shared effect of stand structure, soil, and geographic distance. However, the phylogenetic community similarity increased at lower pH values, supporting that fewer, closely related species were found at lower pH values. Also, no phylogenetic signal was detected among exploration types, although short and contact were the most abundant types in these forest ecosystems. Our results demonstrate that pH but not tree host, acts as a strong abiotic filter on ectomycorrhizal phylogenetic communities in Mediterranean pine forests at a local scale. Finally, our study shed light on dominant ectomycorrhizal foraging strategies in drought-prone ecosystems such as Mediterranean forests.https://www.mdpi.com/2309-608X/7/10/793DNA metabarcodingphylogenetic structurehabitat filtering |
| spellingShingle | Irene Adamo Carles Castaño José Antonio Bonet Carlos Colinas Juan Martínez de Aragón Josu G. Alday Lack of Phylogenetic Differences in Ectomycorrhizal Fungi among Distinct Mediterranean Pine Forest Habitats Journal of Fungi DNA metabarcoding phylogenetic structure habitat filtering |
| title | Lack of Phylogenetic Differences in Ectomycorrhizal Fungi among Distinct Mediterranean Pine Forest Habitats |
| title_full | Lack of Phylogenetic Differences in Ectomycorrhizal Fungi among Distinct Mediterranean Pine Forest Habitats |
| title_fullStr | Lack of Phylogenetic Differences in Ectomycorrhizal Fungi among Distinct Mediterranean Pine Forest Habitats |
| title_full_unstemmed | Lack of Phylogenetic Differences in Ectomycorrhizal Fungi among Distinct Mediterranean Pine Forest Habitats |
| title_short | Lack of Phylogenetic Differences in Ectomycorrhizal Fungi among Distinct Mediterranean Pine Forest Habitats |
| title_sort | lack of phylogenetic differences in ectomycorrhizal fungi among distinct mediterranean pine forest habitats |
| topic | DNA metabarcoding phylogenetic structure habitat filtering |
| url | https://www.mdpi.com/2309-608X/7/10/793 |
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