1
|
Ren GC, Tibpromma S, Dong KX, Gao CX, Zhang CS, Karunarathna SC, Elgorban AM, Gui H. Unveiling fungi associated with Castanopsis woody litter in Yunnan Province, China: Insights into Pleosporales (Dothideomycetes) species. MycoKeys 2024; 108:15-45. [PMID: 39220353 PMCID: PMC11362665 DOI: 10.3897/mycokeys.108.127560] [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: 05/15/2024] [Accepted: 07/28/2024] [Indexed: 09/04/2024] Open
Abstract
During a survey of the diversity of lignicolous fungi in Yunnan Province, China, we collected and identified five microfungi species from dead woody litters of Castanopsis trees in terrestrial habitats. Through both morphological comparisons and phylogenetic analyses of multi-gene sequences, we identified two taxa as new species and three collections as new host records within Pleosporales. Pseudolophiostomalincangense sp. nov. is introduced as a sexual morph in Lophiostomataceae, Pleopunctumbaoshanense sp. nov. is introduced as a hyphomycetous fungi in Phaeoseptaceae, and Paraphomaaquatica as a first report of sexual morph in Paraphoma. In addition, Occultibambusakunmingensis and Pleopunctummegalosporum were isolated for the first time from the dead twigs of Castanopsisdelavayi and C.calathiformis, respectively. Comprehensive morphological descriptions, illustrations, and phylogenetic analysis results are provided for the above-mentioned species.
Collapse
Affiliation(s)
- Guang-Cong Ren
- School of Pharmacy, Guiyang Healthcare Vocational University, Guiyang 550081, China
| | - Saowaluck Tibpromma
- Guizhou Provincial Engineering Research Center of Medical Resourceful Healthcare Products, Guiyang Healthcare Vocational University, Guiyang 550081, China
| | - Kai-Xuan Dong
- School of Pharmacy, Guiyang Healthcare Vocational University, Guiyang 550081, China
| | - Chen-Xi Gao
- School of Pharmacy, Guiyang Healthcare Vocational University, Guiyang 550081, China
| | - Chao-Shan Zhang
- School of Pharmacy, Guiyang Healthcare Vocational University, Guiyang 550081, China
| | - Samantha C. Karunarathna
- Guizhou Provincial Engineering Research Center of Medical Resourceful Healthcare Products, Guiyang Healthcare Vocational University, Guiyang 550081, China
| | - Abdallah M. Elgorban
- Center for Yunnan Plateau Biological Resources Protection and Utilization College of Biological Resource and Food Engineering, Qujing Normal University, Qujing, Yunnan 655011, China
| | - Heng Gui
- Center of Excellence in Biotechnology Research (CEBR), King Saud University, Riyadh, Saudi Arabia
| |
Collapse
|
2
|
Wanasinghe DN, Nimalrathna TS, Qin Xian L, Faraj TK, Xu J, Mortimer PE. Taxonomic novelties and global biogeography of Montagnula (Ascomycota, Didymosphaeriaceae). MycoKeys 2024; 101:191-232. [PMID: 38283721 PMCID: PMC10820738 DOI: 10.3897/mycokeys.101.113259] [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: 09/25/2023] [Accepted: 12/17/2023] [Indexed: 01/30/2024] Open
Abstract
Whilst conducting surveys of lignicolous microfungi in Yunnan Province, we collected a large number of taxa that resemble Montagnula (Didymosphaeriaceae, Pleosporales). Our phylogenetic study on Montagnula involved analysing sequence data from ribosomal RNA genes (nc18S, nc28S, ITS) and protein-coding genes (rpb2, tef1-α). We present a biphasic approach (morphological and molecular phylogenetic evidence) that supports the recognition of four new species in Montagnula viz., M.lijiangensis, M.menglaensis, M.shangrilana and M.thevetiae. The global diversity of Montagnula is also inferred from metabarcoding data and published records based on field observations. Metabarcoding data from GlobalFungi and field observations provided insights into the global diversity and distribution patterns of Montagnula. Studies conducted in Asia, Australia, Europe, and North America revealed a concentration of Montagnula species, suggesting regional variations in ecological preferences and distribution. Montagnula species were found on various substrates, with sediments yielding a high number of sequences. Poaceae emerged as a significant contributor, indicating a potential association between Montagnula species and grasses. Culture-based investigations from previously published data revealed Montagnula species associations with 105 plant genera (in 45 plant families), across 55 countries, highlighting their wide ecological range and adaptability. This study enhances our understanding of the taxonomy, distribution, and ecological preferences of Montagnula species. It emphasizes their role in the decomposition of organic matter in grasslands and savannah systems and suggests further investigation into their functional roles in ecosystem processes. The global distribution patterns and ecological interactions of Montagnula species underscore the need for continued research and conservation efforts.
Collapse
Affiliation(s)
- Dhanushka N. Wanasinghe
- Honghe Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Honghe County 654400, Yunnan, ChinaKunming Institute of Botany, Chinese Academy of SciencesHonghe CountyChina
| | - Thilina S. Nimalrathna
- CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla, Yunnan, ChinaCAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of SciencesMenglaChina
- Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences & Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan 666303, ChinaSoutheast Asia Biodiversity Research Institute, Chinese Academy of Sciences & Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of SciencesMenglaChina
- Yunnan International Joint Laboratory of Southeast Asia Biodiversity Conservation & Yunnan Key Laboratory for Conservation of Tropical Rainforests and Asian Elephants, Menglun, Mengla, Yunnan 666303, ChinaYunnan International Joint Laboratory of Southeast Asia Biodiversity Conservation & Yunnan Key Laboratory for Conservation of Tropical Rainforests and Asian ElephantsMenglaChina
- International College, University of Chinese Academy of Sciences, Beijing, ChinaUniversity of Chinese Academy of SciencesBeijingChina
| | - Li Qin Xian
- Honghe Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Honghe County 654400, Yunnan, ChinaKunming Institute of Botany, Chinese Academy of SciencesHonghe CountyChina
| | - Turki Kh. Faraj
- Department of Soil Science, College of Food and Agriculture Sciences, King Saud University, P.O. Box 145111, Riyadh 11362, Saudi ArabiaKing Saud UniversityRiyadhSaudi Arabia
| | - Jianchu Xu
- Honghe Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Honghe County 654400, Yunnan, ChinaKunming Institute of Botany, Chinese Academy of SciencesHonghe CountyChina
- CIFOR-ICRAF China Country Program, Kunming, Yunnan, ChinaCIFOR-ICRAF China Country ProgramKunmingChina
| | - Peter E. Mortimer
- Honghe Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Honghe County 654400, Yunnan, ChinaKunming Institute of Botany, Chinese Academy of SciencesHonghe CountyChina
| |
Collapse
|
3
|
Ren G, Wanasinghe DN, de Farias ARG, Hyde KD, Yasanthika E, Xu J, Balasuriya A, Chethana KWT, Gui H. Taxonomic Novelties of Woody Litter Fungi ( Didymosphaeriaceae, Pleosporales) from the Greater Mekong Subregion. BIOLOGY 2022; 11:1660. [PMID: 36421373 PMCID: PMC9687740 DOI: 10.3390/biology11111660] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 11/07/2022] [Accepted: 11/07/2022] [Indexed: 05/30/2024]
Abstract
The Greater Mekong Subregion (GMS) is known as a diverse geographic landscape and one of the richest biodiversity hotspots in the world with a high fungal diversity. Collections were carried out in terrestrial habitats to determine the diversity of woody litter fungi in the GMS, with an emphasis on northern Thailand and the Yunnan Province of China. Morphological characteristics and multigene phylogenetic analyses of combined SSU, LSU, ITS, and tef1-α supported the placement of the new isolates in the family Didymosphaeriaceae. The phylogenetic affinities of our isolates are illustrated through maximum likelihood and Bayesian inference analyses. Seven species of woody litter fungi were identified, comprising a new monotypic genus, Septofusispora; five novel species (Chromolaenicola sapindi, Dictyoarthrinium thailandicum, Karstenula lancangensis, Septofusispora thailandica, and Spegazzinia jinghaensis); and new host records of two species (Austropleospora archidendri, and Montagnula donacina). Furthermore, this study provides a synopsis of the Montagnula aff. donacina species based on their morphological characteristics, which can be useful in the species-level identifications in this genus.
Collapse
Affiliation(s)
- Guangcong Ren
- School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand
- School of Pharmacy, Guiyang Nursing Vocational College, Guiyang 550081, China
| | - Dhanushka N. Wanasinghe
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
- Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Honghe 654400, China
| | | | - Kevin D. Hyde
- School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Erandi Yasanthika
- School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Jianchu Xu
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
- Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Honghe 654400, China
| | - Abhaya Balasuriya
- School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Kandawatte Wedaralalage Thilini Chethana
- School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Heng Gui
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
- Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Honghe 654400, China
| |
Collapse
|
4
|
Xu XL, Wang FH, Liu C, Yang HB, Zeng Z, Wang BX, Liu YG, Yang CL. Morphology and phylogeny of ascomycetes associated with walnut trees ( Juglans regia) in Sichuan province, China. Front Microbiol 2022; 13:1016548. [PMID: 36338097 PMCID: PMC9632355 DOI: 10.3389/fmicb.2022.1016548] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 09/20/2022] [Indexed: 01/28/2023] Open
Abstract
In Sichuan province, walnuts, consisting of Juglans regia, Juglans sigillata, and the hybrid J. regia × J. sigillata, are commercially important edible nuts, and J. regia is the most widespread plant. To date, the diversity and distribution of fungi inhabiting on Juglans have not received enough attention, although there have been studies focusing on pathogens from fruit and stem. In order to update the checklist of fungi associated with Sichuan walnuts, a survey on fungi associated with the three Juglans species from 15 representative regions in Sichuan was conducted. In this article, ten fungi distributed in two classes of Ascomycota (Dothideomycetes and Sordariomycetes) were described based on morpho-molecular analyses, and two novel species, Neofusicoccum sichuanense and Sphaerulina juglandina, a known species of Ophiognomonia leptostyla, and seven new hosts or geographical records of Cladosporium tenuissimum, Diatrypella vulgaris, Helminthosporium juglandinum, Helminthosporium velutinum, Loculosulcatispora hongheensis, Periconia byssoides, and Rhytidhysteron subrufulum were included. Morphological descriptions and illustrations of these fungi are provided.
Collapse
Affiliation(s)
- Xiu-Lan Xu
- National Forestry and Grassland Administration Key Laboratory of Forest Resources Conservation and Ecological Safety on the Upper Reaches of the Yangtze River and Forestry Ecological Engineering in the Upper Reaches of the Yangtze River Key Laboratory of Sichuan Province, College of Forestry, Sichuan Agricultural University, Chengdu, Sichuan, China,Forestry Research Institute, Chengdu Academy of Agricultural and Forestry Sciences, Chengdu, Sichuan, China
| | - Fei-Hu Wang
- National Forestry and Grassland Administration Key Laboratory of Forest Resources Conservation and Ecological Safety on the Upper Reaches of the Yangtze River and Forestry Ecological Engineering in the Upper Reaches of the Yangtze River Key Laboratory of Sichuan Province, College of Forestry, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Chao Liu
- National Forestry and Grassland Administration Key Laboratory of Forest Resources Conservation and Ecological Safety on the Upper Reaches of the Yangtze River and Forestry Ecological Engineering in the Upper Reaches of the Yangtze River Key Laboratory of Sichuan Province, College of Forestry, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Han-Bo Yang
- National Forestry and Grassland Administration Key Laboratory of Forest Resources Conservation and Ecological Safety on the Upper Reaches of the Yangtze River and Forestry Ecological Engineering in the Upper Reaches of the Yangtze River Key Laboratory of Sichuan Province, College of Forestry, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Zhen Zeng
- Forestry Research Institute, Chengdu Academy of Agricultural and Forestry Sciences, Chengdu, Sichuan, China,*Correspondence: Zhen Zeng,
| | - Bao-Xin Wang
- Forestry Research Institute, Chengdu Academy of Agricultural and Forestry Sciences, Chengdu, Sichuan, China
| | - Ying-Gao Liu
- National Forestry and Grassland Administration Key Laboratory of Forest Resources Conservation and Ecological Safety on the Upper Reaches of the Yangtze River and Forestry Ecological Engineering in the Upper Reaches of the Yangtze River Key Laboratory of Sichuan Province, College of Forestry, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Chun-Lin Yang
- National Forestry and Grassland Administration Key Laboratory of Forest Resources Conservation and Ecological Safety on the Upper Reaches of the Yangtze River and Forestry Ecological Engineering in the Upper Reaches of the Yangtze River Key Laboratory of Sichuan Province, College of Forestry, Sichuan Agricultural University, Chengdu, Sichuan, China,Chun-Lin Yang,
| |
Collapse
|
5
|
Morpho-Phylogenetic Evidence Reveals Novel Pleosporalean Taxa from Sichuan Province, China. J Fungi (Basel) 2022; 8:jof8070720. [PMID: 35887475 PMCID: PMC9317281 DOI: 10.3390/jof8070720] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 06/30/2022] [Accepted: 07/07/2022] [Indexed: 11/17/2022] Open
Abstract
Pleosporales is the largest and most morphologically diverse order in Dothideomycetes, including a large proportion of saprobic fungi. During the investigation of microfungi from decaying wood in Sichuan Province, several novel fungal taxa of asexual and sexual morphs were collected, identified, and well-described. Phylogenetic analyses based on SSU, ITS, LSU, RPB2 and TEF1α gene sequences suggested that these new taxa were related to Pleosporales and distributed in five families, viz. Amorosiaceae, Bambusicolaceae, Lophiostomataceae, Occultibambusaceae and Tetraplosphaeriaceae. The morphological comparison and molecular phylogeny evidence justify the establishment of six new taxa, namely Bambusicola guttulata sp. nov., Flabellascoma sichuanense sp. nov., Neoangustimassarina sichuanensis gen. et sp. nov., Occultibambusa sichuanensis sp. nov. and Pseudotetraploa bambusicola sp. nov. Among them, Neoangustimassarina was introduced as the second sexual morph genus in Amorosiaceae; Bambusicola guttulata, O. sichuanensis and P. bambusicola were isolated from bamboos, which contributed to the diversity of bambusicolous fungi. The detailed, illustrated descriptions and notes for each new taxon are provided, as well as a brief note for each family. The potential richness of fungal diversity in Sichuan Province is also discussed.
Collapse
|
6
|
Maharachchikumbura SSN, Wanasinghe DN, Elgorban AM, Al-Rejaie SS, Kazerooni EA, Cheewangkoon R. Brunneosporopsis yunnanensis gen. et sp. nov. and Allocryptovalsa xishuangbanica sp. nov., New Terrestrial Sordariomycetes from Southwest China. Life (Basel) 2022; 12:life12050635. [PMID: 35629303 PMCID: PMC9146849 DOI: 10.3390/life12050635] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 04/15/2022] [Accepted: 04/22/2022] [Indexed: 11/17/2022] Open
Abstract
Three fungal taxa were collected on dead branches of wood during fieldwork in Sichuan and Yunnan Provinces, China. The new generic name Brunneosporopsis gen. nov. and species B. yunnanensis sp. nov. are introduced for a novel taxon characterized by globose to subglobose and dark olivacous-brown conidia. Phylogenetic analyses based on combined LSU, SSU and tef1-α loci strongly support the monophyly of this taxon and place it in the subclass Diaporthomycetidae. It could not be assigned to any currently recognized families in the subclass and was, therefore, placed in the Diaporthomycetidae genera incertae sedis. A second taxon represents a new species in Allocryptovalsa based on an analysis of the sequence datasets of ITS and btub loci of the novel, brown-spored sexual morphic species. This taxon is described here as A. xishuangbanica sp. nov. An interesting hypocrealean fungus producing synnemata, Stilbocrea gracilipes, was collected from dead wood of an unknown host from Sichuan Province and is reported here, with asexual morph from both the host and culture as well as LSU, ITS, tef1-α, rpb2 and rpb1 sequence data.
Collapse
Affiliation(s)
- Sajeewa S. N. Maharachchikumbura
- Center for Informational Biology, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 611731, China; or
| | - Dhanushka N. Wanasinghe
- Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand
- Honghe Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Honghe County 654400, China
- Correspondence: or (D.N.W.); (R.C.)
| | - Abdallah M. Elgorban
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Salim S. Al-Rejaie
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Elham A. Kazerooni
- School of Applied Biosciences, Kyungpook National University, Daegu 41566, South Korea;
| | - Ratchadawan Cheewangkoon
- Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand
- Correspondence: or (D.N.W.); (R.C.)
| |
Collapse
|
7
|
Ghobad-Nejhad M, Langer E, Nakasone K, Diederich P, Nilsson RH, Rajchenberg M, Ginns J. Digging Up the Roots: Taxonomic and Phylogenetic Disentanglements in Corticiaceae s.s. (Corticiales, Basidiomycota) and Evolution of Nutritional Modes. Front Microbiol 2021; 12:704802. [PMID: 34512580 PMCID: PMC8425454 DOI: 10.3389/fmicb.2021.704802] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 07/23/2021] [Indexed: 11/25/2022] Open
Abstract
Corticiaceae is one of the traditional families of the Agaricomycetes and served for a long time as a convenient placement for basidiomycetes with a resupinate, corticioid form of fruiting body. Molecular studies have helped to assign many corticioid fungi to diverse families and orders; however, Corticiaceae still lacks a phylogenetic characterization and modern circumscription. Here, we provide the first comprehensive phylogenetic and taxonomic revision of the family Corticiaceae based on extensive type studies and sequences of nLSU, ITS, IGS, nSSU, and mtSSU regions. Our analyses support the recognition of ten monophyletic genera in the Corticiaceae, and show that nutritional mode is not a robust basis for generic delimitations in the family. The genus Mycobernardia and the species Corticium thailandicum, Erythricium vernum, and Marchandiomyces allantosporus are described as new to science, and five new combinations are proposed. Moreover, ancestral character state reconstruction revealed that saprotrophy is the plesiomorphic nutritional mode in the Corticiaceae, while several transitions have occurred to diverse nutritional modes in this family. Identification keys are provided to the genera in Corticiaceae s.s. as well as to the species in Corticium, Erythricium, Laetisaria, and Marchandiomyces.
Collapse
Affiliation(s)
- Masoomeh Ghobad-Nejhad
- Department of Biotechnology, Iranian Research Organization for Science and Technology, Tehran, Iran
| | - Ewald Langer
- Department of Ecology, FB 10 (Mathematics and Natural Sciences), University Kassel, Kassel, Germany
| | - Karen Nakasone
- Center for Forest Mycology Research, Northern Research Station, U.S. Forest Service, Madison, WI, United States
| | - Paul Diederich
- Musée national d'histoire naturelle, Luxembourg, Luxembourg
| | - R. Henrik Nilsson
- Department of Biological and Environmental Sciences, Gothenburg Global Biodiversity Centre, University of Gothenburg, Göteborg, Sweden
| | - Mario Rajchenberg
- Centro de Investigación y Extensión Forestal Andino Patagónico, National Research Council of Argentina (CONICET), Esquel, Argentina
| | | |
Collapse
|
8
|
|
9
|
Mortimer PE, Jeewon R, Xu JC, Lumyong S, Wanasinghe DN. Morpho-Phylo Taxonomy of Novel Dothideomycetous Fungi Associated With Dead Woody Twigs in Yunnan Province, China. Front Microbiol 2021; 12:654683. [PMID: 33833748 PMCID: PMC8021917 DOI: 10.3389/fmicb.2021.654683] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Accepted: 02/25/2021] [Indexed: 01/02/2023] Open
Abstract
Within the field of mycology, macrofungi have been relatively well-studied when compared to microfungi. However, the diversity and distribution of microfungi inhabiting woody material have not received the same degree of research attention, especially in relatively unexplored regions, such as Yunnan Province, China. To help address this knowledge gap, we collected and examined fungal specimens from different plants at various locations across Yunnan Province. Our investigation led to the discovery of four species that are clearly distinct from extant ones. These taxonomic novelties were recognized based on morphological comparisons coupled with phylogenetic analyses of multiple gene sequences (non-translated loci and protein-coding regions). The monotypic genus Neoheleiosa gen. nov. (type: N. lincangensis) is introduced in Monoblastiaceae (Monoblastiales) for a woody-based saprobic ascomycete that possesses globose to subglobose or obpyriform ascomata with centric or eccentric, papillate ostioles, an ascomatal wall with thin-walled cells of textura globulosa, cylindric, pedicellate asci with an ocular chamber, and 1-septate, brown, guttulate, longitudinally striated, bicellular ascospores. Neoheleiosa has a close phylogenetic affinity to Heleiosa, nevertheless, it is morphologically dissimilar by its peridium cells and ornamented ascospores. Acrocalymma hongheense and A. yuxiense are described and illustrated as new species in Acrocalymmaceae. Acrocalymma hongheense is introduced with sexual and asexual (coelomycetous) features. The sexual morph is characterized by globose to subglobose, ostiolate ascomata, a peridium with textura angularis cells, cylindric-clavate asci with a furcate to truncate pedicel and an ocular chamber, hyaline, fusiform, 1-septate ascospores which are surrounded by a thick, distinct sheath, and the asexual morph is featured by pycnidial conidiomata, subcylindrical, hyaline, smooth, annelledic, conidiogenous cells, hyaline, guttulate, subcylindrical, aseptate conidia with mucoid ooze at the apex and with a rounded hilum at the base. Acrocalymma yuxiense is phylogenetically distinct from other extant species of Acrocalymma and differs from other taxa in Acrocalymma in having conidia with three vertical eusepta. Magnibotryascoma kunmingense sp. nov. is accommodated in Teichosporaceae based on its coelomycetous asexual morph which is characterized by pycnidial, globose to subglobose, papillate conidiomata, enteroblastic, annelledic, discrete, cylindrical to oblong, hyaline conidiogenous cells arising from the inner layer of pycnidium wall, subglobose, oval, guttulate, pale brown and unicelled conidia.
Collapse
Affiliation(s)
- Peter E. Mortimer
- CAS Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand
- Honghe Center for Mountain Futures, Kunming Institute of Botany, Yunnan, China
| | - Rajesh Jeewon
- Department of Health Sciences, Faculty of Medicine and Health Sciences, University of Mauritius, Reduit, Mauritius
| | - Jian-Chu Xu
- CAS Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- Honghe Center for Mountain Futures, Kunming Institute of Botany, Yunnan, China
- World Agroforestry Centre, East and Central Asia, Kunming, China
| | - Saisamorn Lumyong
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand
- Faculty of Science, Research Center of Microbial Diversity and Sustainable Utilization, Chiang Mai University, Chiang Mai, Thailand
- Academy of Science, The Royal Society of Thailand, Bangkok, Thailand
| | - Dhanushka N. Wanasinghe
- CAS Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- Honghe Center for Mountain Futures, Kunming Institute of Botany, Yunnan, China
| |
Collapse
|
10
|
Wanasinghe DN, Mortimer PE, Xu J. Insight into the Systematics of Microfungi Colonizing Dead Woody Twigs of Dodonaea viscosa in Honghe (China). J Fungi (Basel) 2021; 7:jof7030180. [PMID: 33802406 PMCID: PMC7999967 DOI: 10.3390/jof7030180] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 02/26/2021] [Accepted: 02/27/2021] [Indexed: 12/20/2022] Open
Abstract
Members of Dodonaea are broadly distributed across subtropical and tropical areas of southwest and southern China. This host provides multiple substrates that can be richly colonized by numerous undescribed fungal species. There is a severe lack of microfungal studies on Dodonaea in China, and consequently, the diversity, phylogeny and taxonomy of these microorganisms are all largely unknown. This paper presents two new genera and four new species in three orders of Dothideomycetes gathered from dead twigs of Dodonaea viscosa in Honghe, China. All new collections were made within a selected area in Honghe from a single Dodonaea sp. This suggests high fungal diversity in the region and the existence of numerous species awaiting discovery. Multiple gene sequences (non-translated loci and protein-coding regions) were analysed with maximum likelihood and Bayesian analyses. Results from the phylogenetic analyses supported placing Haniomyces dodonaeae gen. et sp. in the Teratosphaeriaceae family. Analysis of Rhytidhysteron sequences resulted in Rhytidhysteron hongheense sp. nov., while analysed Lophiostomataceae sequences revealed Lophiomurispora hongheensis gen. et sp. nov. Finally, phylogeny based on a combined dataset of pyrenochaeta-like sequences demonstrates strong statistical support for placing Quixadomyceshongheensis sp. nov. in Parapyrenochaetaceae. Morphological and updated phylogenetic circumscriptions of the new discoveries are also discussed.
Collapse
Affiliation(s)
- Dhanushka N. Wanasinghe
- CAS Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, China;
- World Agroforestry, East and Central Asia, 132 Lanhei Road, Kunming 650201, Yunnan, China
- Honghe Center for Mountain Futures, Kunming Institute of Botany, Honghe County 654400, Yunnan, China
| | - Peter E. Mortimer
- CAS Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, China;
- World Agroforestry, East and Central Asia, 132 Lanhei Road, Kunming 650201, Yunnan, China
- Correspondence: (P.E.M.); (J.X.); Tel.: +86-158-8784-3793 (P.E.M.); +86-138-0870-8795 (J.X.)
| | - Jianchu Xu
- CAS Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, China;
- World Agroforestry, East and Central Asia, 132 Lanhei Road, Kunming 650201, Yunnan, China
- Honghe Center for Mountain Futures, Kunming Institute of Botany, Honghe County 654400, Yunnan, China
- Correspondence: (P.E.M.); (J.X.); Tel.: +86-158-8784-3793 (P.E.M.); +86-138-0870-8795 (J.X.)
| |
Collapse
|