Cargando…

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...

Descripción completa

Detalles Bibliográficos
Autores principales: Adamo, Irene, Castaño, Carles, Bonet, José Antonio, Colinas, Carlos, Martínez de Aragón, Juan, Alday, Josu G.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8538088/
https://www.ncbi.nlm.nih.gov/pubmed/34682215
http://dx.doi.org/10.3390/jof7100793
_version_ 1784588423781154816
author Adamo, Irene
Castaño, Carles
Bonet, José Antonio
Colinas, Carlos
Martínez de Aragón, Juan
Alday, Josu G.
author_facet Adamo, Irene
Castaño, Carles
Bonet, José Antonio
Colinas, Carlos
Martínez de Aragón, Juan
Alday, Josu G.
author_sort Adamo, Irene
collection PubMed
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 P. nigra, P. halepensis, and P. sylvestris, and mixed forests of P. nigra-P. halepensis and P. nigra-P. sylvestris, 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.
format Online
Article
Text
id pubmed-8538088
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-85380882021-10-24 Lack of Phylogenetic Differences in Ectomycorrhizal Fungi among Distinct Mediterranean Pine Forest Habitats Adamo, Irene Castaño, Carles Bonet, José Antonio Colinas, Carlos Martínez de Aragón, Juan Alday, Josu G. J Fungi (Basel) Article 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 P. nigra, P. halepensis, and P. sylvestris, and mixed forests of P. nigra-P. halepensis and P. nigra-P. sylvestris, 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. MDPI 2021-09-24 /pmc/articles/PMC8538088/ /pubmed/34682215 http://dx.doi.org/10.3390/jof7100793 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Adamo, Irene
Castaño, Carles
Bonet, José Antonio
Colinas, Carlos
Martínez de Aragón, Juan
Alday, Josu G.
Lack of Phylogenetic Differences in Ectomycorrhizal Fungi among Distinct Mediterranean Pine Forest Habitats
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 Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8538088/
https://www.ncbi.nlm.nih.gov/pubmed/34682215
http://dx.doi.org/10.3390/jof7100793
work_keys_str_mv AT adamoirene lackofphylogeneticdifferencesinectomycorrhizalfungiamongdistinctmediterraneanpineforesthabitats
AT castanocarles lackofphylogeneticdifferencesinectomycorrhizalfungiamongdistinctmediterraneanpineforesthabitats
AT bonetjoseantonio lackofphylogeneticdifferencesinectomycorrhizalfungiamongdistinctmediterraneanpineforesthabitats
AT colinascarlos lackofphylogeneticdifferencesinectomycorrhizalfungiamongdistinctmediterraneanpineforesthabitats
AT martinezdearagonjuan lackofphylogeneticdifferencesinectomycorrhizalfungiamongdistinctmediterraneanpineforesthabitats
AT aldayjosug lackofphylogeneticdifferencesinectomycorrhizalfungiamongdistinctmediterraneanpineforesthabitats