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Yuan Q, Zhao C. Morphology and multigene phylogeny revealed four new species of Xylodon (Schizoporaceae, Basidiomycota) from southern China. MycoKeys 2024; 107:161-187. [PMID: 39169988 PMCID: PMC11336394 DOI: 10.3897/mycokeys.107.128223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Accepted: 07/23/2024] [Indexed: 08/23/2024] Open
Abstract
Fungi are one of the most diverse groups of organisms on Earth, amongst which wood-inhabiting fungi play a crucial role in ecosystem processes and functions. Four new wood-inhabiting fungi, Xylodoncremeoparinaceus, X.luteodontioides, X.poroides and X.wumengshanensis are proposed, based on morphological features and molecular evidence. Xylodoncremeoparinaceus is distinguished by a cream hymenial surface with a pruinose hymenophore, a monomitic hyphal system with clamped generative hyphae and ellipsoid basidiospores. Xylodonluteodontioides is characterised by flavescens hymenophore surface with odontioid hymenophore, monomitic hyphal system with clamped generative hyphae and ellipsoid basidiospores. Xylodonporoides bears coriaceous basidiomata with a poroid hymenophore surface, monomitic hyphal system with clamped generative hyphae and ellipsoid basidiospores. Xylodonwumengshanensis is a distinct taxon by its grandinoid hymenophore surface, monomitic hyphal system with clamped generative hyphae and ellipsoid basidiospores. Sequences of ITS and nLSU rRNA markers of the studied samples were generated and phylogenetic analyses were performed using the Maximum Likelihood, Maximum Parsimony, and Bayesian Inference methods. The phylogram, based on the ITS+nLSU rDNA gene regions, included three genera within the Schizoporaceae as Fasciodontia, Lyomyces and Xylodon. The four new species were grouped into the genus Xylodon. The topology, based on the ITS sequences, revealed that Xylodoncremeoparinaceus was grouped closely with X.pruinosus, X.detriticus and X.ussuriensis. The taxon X.luteodontioides was sister to X.nesporii. The species X.poroides separated from X.pseudotropicus, while X.wumengshanensis was grouped with four taxa: X.patagonicus, X.radula, X.subtropicus and X.taiwanianus.
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Affiliation(s)
- Qi Yuan
- The Key Laboratory of Forest Resources Conservation and Utilization in the Southwest Mountains of China Ministry of Education, Key Laboratory of National Forestry and Grassland Administration on Biodiversity Conservation in Southwest China, Yunnan Provincial Key Laboratory for Conservation and Utilization of In-forest Resource, Southwest Forestry University, Kunming 650224, ChinaSouthwest Forestry UniversityKunmingChina
| | - Changlin Zhao
- The Key Laboratory of Forest Resources Conservation and Utilization in the Southwest Mountains of China Ministry of Education, Key Laboratory of National Forestry and Grassland Administration on Biodiversity Conservation in Southwest China, Yunnan Provincial Key Laboratory for Conservation and Utilization of In-forest Resource, Southwest Forestry University, Kunming 650224, ChinaSouthwest Forestry UniversityKunmingChina
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Yang Y, Li R, Jiang Q, Zhou H, Muhammad A, Wang H, Zhao C. Phylogenetic and Taxonomic Analyses Reveal Three New Wood-Inhabiting Fungi (Polyporales, Basidiomycota) in China. J Fungi (Basel) 2024; 10:55. [PMID: 38248964 PMCID: PMC10817363 DOI: 10.3390/jof10010055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/05/2024] [Accepted: 01/05/2024] [Indexed: 01/23/2024] Open
Abstract
Three new wood-inhabiting fungal species, Cerioporus yunnanensis, Perenniporiopsis sinensis, and Sarcoporia yunnanensis, are proposed based on a combination of the morphological features and molecular evidence. Cerioporus yunnanensis is characterized by the pileate basidiomata having a fawn brown to black pileal surface, a dimitic hyphal system with clamped generative hyphae, and the presence of the fusoid cystidioles and cylindrical basidiospores (9-12.5 × 3.5-5 µm). Perenniporiopsis sinensis is distinct from the osseous pileus with verrucose, an orange-yellow to dark reddish-brown pileal surface with a cream margin, a trimitic hyphal system with clamped generative hyphae, and the presence of the fusiform cystidioles and ellipsoid basidiospores (9-11 × 5.5-6.5 µm). Sarcoporia yunnanensis is typical of the pileate basidiomata with a salmon to reddish-brown pileal surface, a monomitic hyphal system with clamped generative hyphae, and the presence of the ellipsoid basidiospores (4-5.5 × 2.5-4 µm). Sequences of ITS + nLSU + mt-SSU + TEF1 + RPB1 + RPB2 genes were used for the phylogenetic analyses using maximum likelihood, maximum parsimony, and Bayesian inference methods. The multiple genes with six loci analysis showed that the three new species nested within the order Polyporales, in which C. yunnanensis and P. sinensis nested into the family Polyporaceae, and S. yunnanensis grouped into the family Sarcoporiaceae.
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Affiliation(s)
- Yang Yang
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming 650224, China; (Y.Y.); (H.Z.)
- Yunnan Key Laboratory of Gastrodia and Fungal Symbiotic Biology, Zhaotong University, Zhaotong 657000, China
- College of Biodiversity Conservation, Southwest Forestry University, Kunming 650224, China; (R.L.); (Q.J.); (A.M.)
| | - Rong Li
- College of Biodiversity Conservation, Southwest Forestry University, Kunming 650224, China; (R.L.); (Q.J.); (A.M.)
| | - Qianquan Jiang
- College of Biodiversity Conservation, Southwest Forestry University, Kunming 650224, China; (R.L.); (Q.J.); (A.M.)
| | - Hongmin Zhou
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming 650224, China; (Y.Y.); (H.Z.)
- College of Biodiversity Conservation, Southwest Forestry University, Kunming 650224, China; (R.L.); (Q.J.); (A.M.)
| | - Akmal Muhammad
- College of Biodiversity Conservation, Southwest Forestry University, Kunming 650224, China; (R.L.); (Q.J.); (A.M.)
| | - Hongjuan Wang
- Yunnan Forestry and Grassland Bureau, Kunming 650224, China
| | - Changlin Zhao
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming 650224, China; (Y.Y.); (H.Z.)
- Yunnan Key Laboratory of Gastrodia and Fungal Symbiotic Biology, Zhaotong University, Zhaotong 657000, China
- College of Biodiversity Conservation, Southwest Forestry University, Kunming 650224, China; (R.L.); (Q.J.); (A.M.)
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Yang Y, Jiang Q, Li Q, Yang J, Cha L, Cheng L, Yang S, Zhao C, Zhou H. Molecular Systematics and Taxonomic Analyses of Three New Wood-Inhabiting Fungi of Hyphoderma (Hyphodermataceae, Basidiomycota). J Fungi (Basel) 2023; 9:1044. [PMID: 37998850 PMCID: PMC10672532 DOI: 10.3390/jof9111044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 10/18/2023] [Accepted: 10/23/2023] [Indexed: 11/25/2023] Open
Abstract
In this present study, three new wood-inhabiting fungal taxa, Hyphoderma niveomarginatum, H. sordidum and H. weishanense, are proposed. Hyphoderma niveomarginatum is characterized by the ceraceous basidiomata having a smooth, cracking hymenial surface and the presence of the moniliform cystidia and ellipsoid basidiospores (7-9 × 3.5-5 µm). Hyphoderma sordidum is characterized by its resupinate basidiomata with a smooth hymenial surface with the fimbriate margin, the presence of the tubular cystidia and ellipsoid basidiospores (3-4.5 × 2-3 µm). Hyphoderma weishanense differs in its membranous basidiomata with a slightly buff to buff hymenial surface and the presence of broadly ellipsoid basidiospores (4.5-8.5 × 4-7 µm). Sequences of ITS+nLSU+mt-SSU+RPB1+RPB2 genes were used for the phylogenetic analyses using three methods. The ITS+nLSU+mt-SSU+RPB1+RPB2 analysis of the genus Hyphoderma indicated that the 3 new species of Hyphoderma were nested into genus Hyphoderma, in which H. niveomarginatum formed a single group and then grouped with H. membranaceum and H. sinense; H. sordidum was a sister to H. nudicephalum; and H. weishanense closely grouped with H. crystallinum.
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Affiliation(s)
- Yang Yang
- College of Biodiversity Conservation, Southwest Forestry University, Kunming 650224, China; (Y.Y.); (Q.J.); (Q.L.)
- Yunnan Key Laboratory of Gastrodia and Fungal Symbiotic Biology, Zhaotong University, Zhaotong 657000, China
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming 650224, China
| | - Qianquan Jiang
- College of Biodiversity Conservation, Southwest Forestry University, Kunming 650224, China; (Y.Y.); (Q.J.); (Q.L.)
| | - Qi Li
- College of Biodiversity Conservation, Southwest Forestry University, Kunming 650224, China; (Y.Y.); (Q.J.); (Q.L.)
| | - Jiawei Yang
- Office of Management and Protection, Green Peacock Provincial Nature Reserve, Dali 671000, China
| | - Li Cha
- Office of Management and Protection, Green Peacock Provincial Nature Reserve, Dali 671000, China
| | - Lijun Cheng
- Yunnan Key Laboratory of Gastrodia and Fungal Symbiotic Biology, Zhaotong University, Zhaotong 657000, China
| | - Shunqiang Yang
- Yunnan Key Laboratory of Gastrodia and Fungal Symbiotic Biology, Zhaotong University, Zhaotong 657000, China
| | - Changlin Zhao
- College of Biodiversity Conservation, Southwest Forestry University, Kunming 650224, China; (Y.Y.); (Q.J.); (Q.L.)
- Yunnan Key Laboratory of Gastrodia and Fungal Symbiotic Biology, Zhaotong University, Zhaotong 657000, China
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming 650224, China
| | - Hongmin Zhou
- College of Biodiversity Conservation, Southwest Forestry University, Kunming 650224, China; (Y.Y.); (Q.J.); (Q.L.)
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming 650224, China
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Cai LQ, Zhao CL. Molecular phylogeny and morphology reveal a new wood-rotting fungal species, Sistotrema yunnanense sp. nov. from the Yunnan-Guizhou Plateau. MYCOSCIENCE 2023; 64:101-108. [PMID: 37397608 PMCID: PMC10308066 DOI: 10.47371/mycosci.2023.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 04/18/2023] [Accepted: 04/23/2023] [Indexed: 07/04/2023]
Abstract
Wood-rotting fungi are important components of woody plant ecosystems and play an active role in the decomposition and turnover of nutrients from wood, and are among the major groups of Basidiomycota. In this study, a new species of wood-rotting fungus, Sistotrema yunnanense, was proposed based on morphological characteristics and molecular evidence. It is characterized by resupinate basidiomata, a monomitic hyphal system having generative hyphae with clamp connections, suburniform to urniform basidia, and short-cylindrical to oblong ellipsoid basidiospores (4.5-6.5 × 3-4 µm). Phylogenetic analyses performed using the large subunit nuc rDNA indicated that S. yunnanense was nested within the genus Sistotrema s.l. of the family Hydnaceae, within the order Cantharellales.
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Affiliation(s)
- Li-Qiong Cai
- Key Laboratory of Forest Disaster Warning and Control in Universities of Yunnan Province, Southwest Forestry University
| | - Chang-Lin Zhao
- Key Laboratory of Forest Disaster Warning and Control in Universities of Yunnan Province, Southwest Forestry University
- Yunnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Science
- Yunnan Key Laboratory of Gastrodia and Fungal Symbiotic Biology, Zhaotong University
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Guan QX, Huang J, Huang J, Zhao CL. Five new species of Schizoporaceae (Basidiomycota, Hymenochaetales) from East Asia. MycoKeys 2023; 96:25-56. [DOI: 10.3897/mycokeys.96.99327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 03/06/2023] [Indexed: 03/15/2023] Open
Abstract
Five new wood-inhabiting fungi, Lyomyces albopulverulentus, L. yunnanensis, Xylodon daweishanensis, X. fissuratus, and X. puerensisspp. nov., are proposed based on a combination of morphological features and molecular evidence. Lyomyces albopulverulentus is characterized by brittle basidiomata, pruinose hymenophore with a white hymenial surface, a monomitic hyphal system with clamped generative hyphae, and ellipsoid basidiospores. Lyomyces yunnanensis is characterized by a grandinioid hymenial surface, the presence of capitate cystidia, and ellipsoid basidiospores. Xylodon daweishanensis is characterized by an odontioid hymenial surface, a monomitic hyphal system with clamped generative hyphae, and broad ellipsoid-to-subglobose basidiospores. Xylodon fissuratus is characterized by a cracking basidiomata with a grandinioid hymenial surface, and ellipsoid basidiospores. Xylodon puerensis is characterized by a poroid hymenophore with an angular or slightly daedaleoid configuration, and ellipsoid-to-broad-ellipsoid basidiospores. Sequences of ITS and nLSU rRNA markers of the studied samples were generated and phylogenetic analyses were performed with the maximum likelihood, maximum parsimony, and Bayesian inference methods. The phylogram based on the ITS+nLSU rDNA gene regions (Fig. 1) included six genera within the families Chaetoporellaceae, Hyphodontiaceae, Hymenochaetaceae, and Schizoporaceae (Hymenochaetales)—Fasciodontia, Hastodontia, Hyphodontia, Kneifiella, Lyomyces, and Xylodon—in which the five new species were grouped into genera Lyomyces and Xylodon. The phylogenetic tree inferred from the ITS sequences highlighted that Lyomyces albopulverulentus formed a monophyletic lineage and was then grouped closely with L. bambusinus, L. orientalis, and L. sambuci; additionally, L. yunnanensis was sister to L. niveus with strong supports. The topology, based on the ITS sequences, revealed that Xylodon daweishanensis was retrieved as a sister to X. hyphodontinus; X. fissuratus was grouped with the four taxa X. montanus, X. subclavatus, X. wenshanensis, and X. xinpingensis; and X. puerensis was clustered with X. flaviporus, X. ovisporus, X. subflaviporus, X. subtropicus, and X. taiwanianus.
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Dong JH, Zhang XC, Chen JJ, Zhu ZL, Zhao CL. A phylogenetic and taxonomic study on Steccherinum (Polyporales, Basidiomycota): Focusing on three new Steccherinum species from southern China. Front Cell Infect Microbiol 2023. [DOI: 10.3389/fcimb.2023.1103579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
The wood-inhabiting fungi play an integral role in wood degradation and the cycle of matter in the ecological system. They are considered as the “key player” in wood decomposition, because of their ability to produce all kinds of enzymes that break down woody lignin, cellulose and hemicellulose. In the present study, three new wood-inhabiting fungal species, Steccherinum fissurutum, S. punctatum and S. subtropicum spp. nov., collected from southern China, are proposed based on a combination of morphological features and molecular evidence. Steccherinum fissurutum is characterized by the resupinate, subceraceous basidiomata with cracked hymenophore, a monomitic hyphal system with clamped generative hyphae and cylindrical basidiospores; S. punctatum is characterized by the annual, punctate basidiomata with leathery hymenophore, cylindrical, strongly encrusted cystidia and ellipsoid basidiospores (3.6–4.5 ×2.6–3.4 µm); S. subtropicum is characterized by its effuse-reflexed basidiomata, a odontioid hymenophore with pink to lilac hymenial surface and ellipsoid basidiospores measuring as (2.8–3.4 × 2.0–2.7 µm). Sequences of ITS and nLSU rRNA markers of the studied samples were generated, and phylogenetic analyses were performed with maximum likelihood, maximum parsimony, and Bayesian inference methods. The ITS+nLSU analysis of the family Steccherinaceae indicated that the three new species clustered into the genus Steccherinum. Based on further analysis of ITS+nLSU dataset, the phylogenetic analysis confirmed that S. subtropicum was sister to S. enuispinum; S. fissurutum formed a monophyletic lineage; S. punctatum grouped with a clade comprised S. straminellum and S. ciliolatum.
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Dong JH, Zhang XC, Chen JJ, Zhu ZL, Zhao CL. A phylogenetic and taxonomic study on Steccherinum (Polyporales, Basidiomycota): Focusing on three new Steccherinum species from southern China. Front Cell Infect Microbiol 2023; 12:1103579. [PMID: 36817691 PMCID: PMC9930103 DOI: 10.3389/fcimb.2022.1103579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Accepted: 12/22/2022] [Indexed: 01/28/2023] Open
Abstract
The wood-inhabiting fungi play an integral role in wood degradation and the cycle of matter in the ecological system. They are considered as the "key player" in wood decomposition, because of their ability to produce all kinds of enzymes that break down woody lignin, cellulose and hemicellulose. In the present study, three new wood-inhabiting fungal species, Steccherinum fissurutum, S. punctatum and S. subtropicum spp. nov., collected from southern China, are proposed based on a combination of morphological features and molecular evidence. Steccherinum fissurutum is characterized by the resupinate, subceraceous basidiomata with cracked hymenophore, a monomitic hyphal system with clamped generative hyphae and cylindrical basidiospores; S. punctatum is characterized by the annual, punctate basidiomata with leathery hymenophore, cylindrical, strongly encrusted cystidia and ellipsoid basidiospores (3.6-4.5 ×2.6-3.4 µm); S. subtropicum is characterized by its effuse-reflexed basidiomata, a odontioid hymenophore with pink to lilac hymenial surface and ellipsoid basidiospores measuring as (2.8-3.4 × 2.0-2.7 µm). Sequences of ITS and nLSU rRNA markers of the studied samples were generated, and phylogenetic analyses were performed with maximum likelihood, maximum parsimony, and Bayesian inference methods. The ITS+nLSU analysis of the family Steccherinaceae indicated that the three new species clustered into the genus Steccherinum. Based on further analysis of ITS+nLSU dataset, the phylogenetic analysis confirmed that S. subtropicum was sister to S. enuispinum; S. fissurutum formed a monophyletic lineage; S. punctatum grouped with a clade comprised S. straminellum and S. ciliolatum.
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Affiliation(s)
- Jun-Hong Dong
- Yunnan Key Laboratory of Plateau Wetland Conservation, Restoration and Ecological Services, Southwest Forestry University, Kunming, China,College of Biodiversity Conservation, Southwest Forestry University, Kunming, China
| | - Xun-Chi Zhang
- Yunnan Key Laboratory of Plateau Wetland Conservation, Restoration and Ecological Services, Southwest Forestry University, Kunming, China,College of Biodiversity Conservation, Southwest Forestry University, Kunming, China
| | - Jia-Jia Chen
- College of Landscape Architecture, Jiangsu Vocational College of Agriculture and Forestry, Zhenjiang, China
| | - Zhong-Long Zhu
- College of Forestry, Beijing Forestry University, Beijing, China,*Correspondence: Chang-Lin Zhao, ; Zhong-Long Zhu,
| | - Chang-Lin Zhao
- Yunnan Key Laboratory of Plateau Wetland Conservation, Restoration and Ecological Services, Southwest Forestry University, Kunming, China,College of Biodiversity Conservation, Southwest Forestry University, Kunming, China,Yunnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Science, Kunming, China,*Correspondence: Chang-Lin Zhao, ; Zhong-Long Zhu,
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Zou L, Zhang X, Deng Y, Zhao C. Four New Wood-Inhabiting Fungal Species of Peniophoraceae (Russulales, Basidiomycota) from the Yunnan-Guizhou Plateau, China. J Fungi (Basel) 2022; 8:1227. [PMID: 36422048 PMCID: PMC9693134 DOI: 10.3390/jof8111227] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/09/2022] [Accepted: 11/18/2022] [Indexed: 04/05/2024] Open
Abstract
Four new fungi of the family Peniophoraceae, viz., Peniophora roseoalba, P. yunnanensis, Vararia daweishanensis, and V. fragilis are herein proposed, based on a combination of morphological features and molecular evidence. Peniophora roseoalba is characterized by resupinate, membranaceous basidiomata with a rose pink to pale pinkish grey hymenophore, a monomitic hyphal system with clamped generative hyphae, the presence of cystidia, and ellipsoid basidiospores. However, P. yunnanensis differs in being tuberculate, with a pale cream to cream hymenial surface, small lamprocystidia (18-29 × 4.5-7 µm), and subcylindrical basidiospores. Vararia daweishanensis is characterized by resupinate, membranous basidiomata with a pale yellowish hymenial surface, a dimitic hyphal system with clamped generative hyphae, strongly dextrinoid dichohyphae, and allantoid basidiospores; V. fragilis is characterized by resupinate, brittle basidiomata, with a buff to ochraceous hymenial surface and small ellipsoid basidiospores measuring 3.5-5.5 × 2.5-3.5 µm. Sequences of the ITS and nLSU rRNA markers of the studied samples were generated, and phylogenetic analyses were performed with the maximum likelihood, maximum parsimony, and Bayesian inference methods. The nLSU analysis revealed that the four new species can be clustered into the family Peniophoraceae (Russulales), in the genera Peniophora and Vararia. Further studies based on the ITS dataset showed that four fungi of the family Peniophoraceae were new to science.
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Affiliation(s)
- Lei Zou
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming 650224, China
- College of Biodiversity Conservation, Southwest Forestry University, Kunming 650224, China
| | - Xiaolu Zhang
- College of Biodiversity Conservation, Southwest Forestry University, Kunming 650224, China
| | - Yinglian Deng
- College of Biodiversity Conservation, Southwest Forestry University, Kunming 650224, China
| | - Changlin Zhao
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming 650224, China
- College of Biodiversity Conservation, Southwest Forestry University, Kunming 650224, China
- Yunnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
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A Molecular Systematics and Taxonomy Research on Trechispora (Hydnodontaceae, Trechisporales): Concentrating on Three New Trechispora Species from East Asia. J Fungi (Basel) 2022; 8:jof8101020. [PMID: 36294585 PMCID: PMC9604563 DOI: 10.3390/jof8101020] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 09/17/2022] [Accepted: 09/24/2022] [Indexed: 11/22/2022] Open
Abstract
Trechispora are an important genus of wood-inhabiting fungi that have the ability to decompose rotten wood in the forest ecosystem. In this study, we reported three new species of Trechispora: T. murina, T. odontioidea, T. olivacea from a subtropical region of Yunnan Province, China. Species descriptions were based on a combination of morphological features and phylogenetic analyses of the ITS and LSU region of nuclear ribosomal DNA. Trechispora murina is characterized by the resupinate basidiomata, grandinioid hymenial surface with a greyish tint, monomitic hyphal system and ellipsoid, thick-walled, ornamented basidiospores; T. odontioidea has an odontioid hymenial surface with cylindrical to conical, blunt aculei and subglobose to globose, colorless, slightly thick-walled, ornamented basidiospores; T. olivacea has a farinaceous hymenial surface with olivaceous tint, basidia clavate and thick-walled, ornamented, broadly ellipsoid to globose basidiospores. Sequences of the ITS and nLSU rDNA markers of the studied samples were generated, and phylogenetic analyses were performed with maximum likelihood, maximum parsimony, and Bayesian inference methods. After a series of phylogenetic analyses, the 5.8S+nLSU dataset was constructed to test the phylogenetic relationship of Trechispora with other genera of Hydnodontaceae. The ITS dataset was used to evaluate the phylogenetic relationship of the three new species with other species of Trechispora. Using ITS phylogeny, the new species T. murina was retrieved as a sister to T. bambusicola with moderate supports; T. odontioidea formed a single lineage and then grouped with T. fimbriata and T. nivea; while T. olivacea formed a monophyletic lineage with T. farinacea, T. hondurensis, and T. mollis.
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Phylogenetic and Taxonomic Analyses of Three New Wood-Inhabiting Fungi of Xylodon (Basidiomycota) in a Forest Ecological System. J Fungi (Basel) 2022; 8:jof8040405. [PMID: 35448636 PMCID: PMC9032152 DOI: 10.3390/jof8040405] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 04/03/2022] [Accepted: 04/13/2022] [Indexed: 02/04/2023] Open
Abstract
Wood-inhabiting fungi are a cosmopolitan group and show a rich diversity, growing in the vegetation of boreal, temperate, subtropical, and tropical regions. Xylodon grandineus, X. punctus, and X. wenshanensis spp. nov. were found in the Yunnan–Guizhou Plateau, China, suggested here to be new fungal species in light of their morphology and phylogeny. Xylodon grandineus is characterized by a grandinioid hymenophore and ellipsoid basidiospores; X. punctus has a membranous hymenophore, a smooth hymenial surface with a speckled distribution, and absent cystidia; X. wenshanensis has a grandinioid hymenophore with a cream to slightly buff hymenial surface and cystidia of two types. Sequences of the ITS and nLSU rRNA markers of the studied samples were generated, and phylogenetic analyses were performed using the maximum likelihood, maximum parsimony, and Bayesian inference methods. After a series of phylogenetic studies, the ITS+nLSU analysis of the order Hymenochaetales indicated that, at the generic level, six genera (i.e., Fasciodontia, Hastodontia, Hyphodontia, Lyomyces, Kneiffiella, and Xylodon) should be accepted to accommodate the members of Hyphodontia sensu lato. According to a further analysis of the ITS dataset, X. grandineus was retrieved as a sister to X. nesporii; X. punctus formed a monophyletic lineage and then grouped with X. filicinus, X. hastifer, X. hyphodontinus, and X. tropicus; and X. wenshanensis was a sister to X. xinpingensis.
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