Taxonomy and Molecular Phylogeny of <i>Phellodon</i> (Thelephorales) with Descriptions of Four New Species from Southwest China
<i>Phellodon</i> is a genus of ectomycorrhizal fungi belonging to the group known as the stipitate hydnoids. It is associated with coniferous trees in forest ecosystems and is widely distributed in the northern hemisphere. <i>Phellodon,</i> together with <i>Hydnellum<...
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doaj-b48b022699614ae68a1961b76c38e5f82021-07-23T13:41:22ZengMDPI AGForests1999-49072021-07-011293293210.3390/f12070932Taxonomy and Molecular Phylogeny of <i>Phellodon</i> (Thelephorales) with Descriptions of Four New Species from Southwest ChinaChang-Ge Song0Xing Ji1Shun Liu2Xiao-Lan He3Bao-Kai Cui4Institute of Microbiology, School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, ChinaInstitute of Microbiology, School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, ChinaInstitute of Microbiology, School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, ChinaSoil and Fertilizer Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu 610066, ChinaInstitute of Microbiology, School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China<i>Phellodon</i> is a genus of ectomycorrhizal fungi belonging to the group known as the stipitate hydnoids. It is associated with coniferous trees in forest ecosystems and is widely distributed in the northern hemisphere. <i>Phellodon,</i> together with <i>Hydnellum</i>, and <i>Sarcodon,</i> is classified in the Bankeraceae, members of which are generally considered as symbiotic fungi. Ectomycorrhizal fungi can help plant roots fix nitrogen and improve the absorption capacity of soil nutrients by trees, so they play an important role in ecosystem protection. Taxonomic and phylogenetic studies of Chinese <i>Phellodon</i> collections were carried out. Four new <i>Phellodon</i> species were discovered from southwestern China based on a combination of morphological characters and molecular data. <i>Phellodon atroardesiacus</i> is characterized by the blackish blue to dark grey pileus, dark grey to ash grey spines, and presence of clamp connections in spines. <i>Phellodon cinereofuscus</i> is distinguished by a cottony tomentose pileal margin, long spines which become clay-buff when dry, and echinulate basidiospores. <i>Phellodon stramineus</i> is characterized by a depressed and tomentose pileus, straw buff-colored pileal surface, and dark grey to ash grey spines. <i>Phellodon yunnanensis</i> is distinguished by a clay-pink to brown pileus, pale brown to white spines, and the presence of clamp connections in the outer layer of stipe. Detailed descriptions, illustrations, and ecological traits for the new taxa are provided. Phylogenetic analyses inferred from the internal transcribed spacer (ITS) regions confirmed that the four new species are distinct within <i>Phellodon</i>.https://www.mdpi.com/1999-4907/12/7/932ectomycorrhizal fungispecies identificationstipitate hydnoid fungitaxonomy |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Chang-Ge Song Xing Ji Shun Liu Xiao-Lan He Bao-Kai Cui |
spellingShingle |
Chang-Ge Song Xing Ji Shun Liu Xiao-Lan He Bao-Kai Cui Taxonomy and Molecular Phylogeny of <i>Phellodon</i> (Thelephorales) with Descriptions of Four New Species from Southwest China Forests ectomycorrhizal fungi species identification stipitate hydnoid fungi taxonomy |
author_facet |
Chang-Ge Song Xing Ji Shun Liu Xiao-Lan He Bao-Kai Cui |
author_sort |
Chang-Ge Song |
title |
Taxonomy and Molecular Phylogeny of <i>Phellodon</i> (Thelephorales) with Descriptions of Four New Species from Southwest China |
title_short |
Taxonomy and Molecular Phylogeny of <i>Phellodon</i> (Thelephorales) with Descriptions of Four New Species from Southwest China |
title_full |
Taxonomy and Molecular Phylogeny of <i>Phellodon</i> (Thelephorales) with Descriptions of Four New Species from Southwest China |
title_fullStr |
Taxonomy and Molecular Phylogeny of <i>Phellodon</i> (Thelephorales) with Descriptions of Four New Species from Southwest China |
title_full_unstemmed |
Taxonomy and Molecular Phylogeny of <i>Phellodon</i> (Thelephorales) with Descriptions of Four New Species from Southwest China |
title_sort |
taxonomy and molecular phylogeny of <i>phellodon</i> (thelephorales) with descriptions of four new species from southwest china |
publisher |
MDPI AG |
series |
Forests |
issn |
1999-4907 |
publishDate |
2021-07-01 |
description |
<i>Phellodon</i> is a genus of ectomycorrhizal fungi belonging to the group known as the stipitate hydnoids. It is associated with coniferous trees in forest ecosystems and is widely distributed in the northern hemisphere. <i>Phellodon,</i> together with <i>Hydnellum</i>, and <i>Sarcodon,</i> is classified in the Bankeraceae, members of which are generally considered as symbiotic fungi. Ectomycorrhizal fungi can help plant roots fix nitrogen and improve the absorption capacity of soil nutrients by trees, so they play an important role in ecosystem protection. Taxonomic and phylogenetic studies of Chinese <i>Phellodon</i> collections were carried out. Four new <i>Phellodon</i> species were discovered from southwestern China based on a combination of morphological characters and molecular data. <i>Phellodon atroardesiacus</i> is characterized by the blackish blue to dark grey pileus, dark grey to ash grey spines, and presence of clamp connections in spines. <i>Phellodon cinereofuscus</i> is distinguished by a cottony tomentose pileal margin, long spines which become clay-buff when dry, and echinulate basidiospores. <i>Phellodon stramineus</i> is characterized by a depressed and tomentose pileus, straw buff-colored pileal surface, and dark grey to ash grey spines. <i>Phellodon yunnanensis</i> is distinguished by a clay-pink to brown pileus, pale brown to white spines, and the presence of clamp connections in the outer layer of stipe. Detailed descriptions, illustrations, and ecological traits for the new taxa are provided. Phylogenetic analyses inferred from the internal transcribed spacer (ITS) regions confirmed that the four new species are distinct within <i>Phellodon</i>. |
topic |
ectomycorrhizal fungi species identification stipitate hydnoid fungi taxonomy |
url |
https://www.mdpi.com/1999-4907/12/7/932 |
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