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Yan XN, Zhang CL. Three new endophytic Apiospora species (Apiosporaceae, Amphisphaeriales) from China. MycoKeys 2024; 105:295-316. [PMID: 38855320 PMCID: PMC11161679 DOI: 10.3897/mycokeys.105.122583] [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: 03/08/2024] [Accepted: 05/11/2024] [Indexed: 06/11/2024] Open
Abstract
Apiospora species are widely distributed fungi with diverse lifestyles, primarily functioning as plant pathogens, as well as exhibiting saprophytic and endophytic behaviors. This study reports the discovery of three new species of Apiospora, namely A.gongcheniae, A.paragongcheniae, and A.neogongcheniae, isolated from healthy Poaceae plants in China. These novel species were identified through a multi-gene phylogenetic analysis. The phylogenetic analysis of the combined ITS, LSU, tef1, and tub2 sequence data revealed that the three new species formed a robustly supported clade with A.garethjonesii, A.neogarethjonesii, A.setostroma, A.subrosea, A.mytilomorpha, and A.neobambusae. Detailed descriptions of the newly discovered species are provided and compared with closely related species to enhance our understanding of the genus Apiospora.
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Affiliation(s)
- Xiao-Ni Yan
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, ChinaZhejiang UniversityHangzhouChina
| | - Chu-Long Zhang
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, ChinaZhejiang UniversityHangzhouChina
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2
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Liu X, Zhang Z, Wang S, Zhang X. Three New Species of Apiospora (Amphisphaeriales, Apiosporaceae) on Indocalamus longiauritus, Adinandra glischroloma and Machilus nanmu from Hainan and Fujian, China. J Fungi (Basel) 2024; 10:74. [PMID: 38248983 PMCID: PMC10817522 DOI: 10.3390/jof10010074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 01/10/2024] [Accepted: 01/12/2024] [Indexed: 01/23/2024] Open
Abstract
Apiospora is widely distributed throughout the world, and most of its hosts are Poaceae. In this study, Arthrinium-like strains were isolated from non-Poaceae in the Hainan and Fujian provinces of China. Based on the combined DNA sequence data of the internal transcriptional spacer (ITS), partial large subunit nuclear rDNA (LSU), translation extension factor 1-α gene (TEF1-α) and β-tubulin (TUB2), the collected Apiospora specimens were compared with known species, and three new species were identified. Based on morphological and molecular phylogenetic analyses, Apiospora adinandrae sp. nov., A. bawanglingensis sp. nov. and A. machili sp. nov. are described and illustrated.
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Affiliation(s)
- Xinye Liu
- College of Life Sciences, Shandong Normal University, Jinan 250358, China; (X.L.); (S.W.)
| | - Zhaoxue Zhang
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian 271018, China;
| | - Shi Wang
- College of Life Sciences, Shandong Normal University, Jinan 250358, China; (X.L.); (S.W.)
| | - Xiuguo Zhang
- College of Life Sciences, Shandong Normal University, Jinan 250358, China; (X.L.); (S.W.)
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Zhang H, Li X, Liu X, Ji X, Ma X, Chen J, Bao Y, Zhang Y, Xu L, Yang L, Wei X. The usnic acid derivative peziculone targets cell walls of Gram-positive bacteria revealed by high-throughput CRISPRi-seq analysis. Int J Antimicrob Agents 2023; 62:106876. [PMID: 37276892 DOI: 10.1016/j.ijantimicag.2023.106876] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 05/10/2023] [Accepted: 05/31/2023] [Indexed: 06/07/2023]
Abstract
Usnic acid, a representative dibenzofuran metabolite, is known to have antimicrobial properties. However, despite considerable interest as an antimicrobial agent, the mechanism by which usnic acid and its derivatives exert their action is not fully characterized. This article describes the synthesis of peziculone, a 5:1 equilibrium mixture of two inseparable usnic acid derivatives: peziculone A and peziculone B. The antibacterial activity of peziculone against several Gram-positive bacterial pathogens was found to be significantly better compared with usnic acid. Clustered regularly interspaced short palindromic repeats interference sequencing analysis and membrane fluorescent staining were used to demonstrate that peziculone destabilizes the cell walls of Gram-positive bacteria. Additionally, peziculone 2.5 and 3.5 µg/mL impaired cell surface appendages and biofilm formation by Staphylococcus aureus. Taken together, these data demonstrate that peziculone, a derivative compound of usnic acid, has significant antimicrobial activity against Gram-positive bacteria by targeting the cell walls; this provides a platform for development of novel antibacterial drugs.
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Affiliation(s)
- Han Zhang
- School of Life Sciences, Huizhou University, Huizhou, People's Republic of China; School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, People's Republic of China; Shenzhen Third People's Hospital, National Clinical Research Centre for Infectious Disease, The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen, People's Republic of China
| | - Xiaojie Li
- School of Life Sciences, Huizhou University, Huizhou, People's Republic of China
| | - Xue Liu
- Department of Pathogen Biology, Base for International Science and Technology Cooperation: Carson Cancer Stem Cell Vaccines R&D Centre, International Cancer Centre, Shenzhen University Health Science Centre, Shenzhen, People's Republic of China
| | - Xia Ji
- School of Life Sciences, Huizhou University, Huizhou, People's Republic of China
| | - Xuan Ma
- South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, People's Republic of China
| | - Jun Chen
- Shenzhen Third People's Hospital, National Clinical Research Centre for Infectious Disease, The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen, People's Republic of China
| | - Yanmin Bao
- Department of Respiratory Diseases, Shenzhen Children's Hospital, Shenzhen, Guangdong, People's Republic of China
| | - Yingdan Zhang
- School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, People's Republic of China; Shenzhen Third People's Hospital, National Clinical Research Centre for Infectious Disease, The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen, People's Republic of China
| | - Liangxiong Xu
- School of Life Sciences, Huizhou University, Huizhou, People's Republic of China.
| | - Liang Yang
- School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, People's Republic of China; Shenzhen Third People's Hospital, National Clinical Research Centre for Infectious Disease, The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen, People's Republic of China.
| | - Xiaoyi Wei
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement / Guangdong Provincial Key Laboratory of Digital Botanical Garden and Public Science, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, People's Republic of China
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Kwon SL, Cho M, Lee YM, Lee H, Kim C, Kim GH, Kim JJ. Diversity of the Bambusicolous Fungus Apiospora in Korea: Discovery of New Apiospora Species. MYCOBIOLOGY 2022; 50:302-316. [PMID: 36404898 PMCID: PMC9645279 DOI: 10.1080/12298093.2022.2133808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 09/22/2022] [Accepted: 10/05/2022] [Indexed: 06/16/2023]
Abstract
Many Apiospora species have been isolated from bamboo plants - to date, 34 bambusicolous Apiospora species have been recorded. They are known as saprophytes, endophytes, and plant pathogens. In this study, 242 bambusicolous Apiospora were isolated from various bamboo materials (branches, culms, leaves, roots, and shoots) and examined using DNA sequence similarity based on the internal transcribed spacer, 28S large subunit ribosomal RNA gene, translation elongation factor 1-alpha, and beta-tubulin regions. Nine Apiospora species (Ap. arundinis, Ap. camelliae-sinensis, Ap. hysterina, Ap. lageniformis sp. nov., Ap. paraphaeosperma, Ap. pseudohyphopodii sp. nov., Ap. rasikravindrae, Ap. saccharicola, and Ap. sargassi) were identified via molecular analysis. Moreover, the highest diversity of Apiospora was found in culms, and the most abundant species was Ap. arundinis. Among the nine Apiospora species, two (Ap. hysterina and Ap. paraphaeosperma) were unrecorded in Korea, and the other two species (Ap. lageniformis sp. nov. and Ap. pseudohyphopodii sp. nov.) were potentially novel species. Here, we describe the diversity of bambusicolous Apiospora species in bamboo organs, construct a multi-locus phylogenetic tree, and delineate morphological features of new bambusicolous Apiospora in Korea.
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Affiliation(s)
- Sun Lul Kwon
- Division of Environmental Science & Ecological Engineering, College of Life Science & Biotechnology, Korea University, Seoul, South Korea
| | - Minseo Cho
- Division of Environmental Science & Ecological Engineering, College of Life Science & Biotechnology, Korea University, Seoul, South Korea
| | - Young Min Lee
- Division of Environmental Science & Ecological Engineering, College of Life Science & Biotechnology, Korea University, Seoul, South Korea
| | - Hanbyul Lee
- Division of Polar Life Sciences, Korea Polar Research Institute, Incheon, South Korea
| | - Changmu Kim
- Division of Biological & Genetic Resources Assessment, National Institute of Biological Resources, Incheon, South Korea
| | - Gyu-Hyeok Kim
- Division of Environmental Science & Ecological Engineering, College of Life Science & Biotechnology, Korea University, Seoul, South Korea
| | - Jae-Jin Kim
- Division of Environmental Science & Ecological Engineering, College of Life Science & Biotechnology, Korea University, Seoul, South Korea
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Insight into the Taxonomic Resolution of Apiospora: Introducing Novel Species and Records from Bamboo in China and Thailand. DIVERSITY 2022. [DOI: 10.3390/d14110918] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Taxonomic studies of bambusicolous fungi in China and Thailand have resulted in the collection of three fascinating saprobic coelomycetes strains. Morphology coupled with combined gene analysis of ITS, LSU, TUB2, and TEF1-α DNA sequence data showed that they belong to the genus Apiospora, family Apiosporaceae. A new species from Thailand, Apiospora mukdahanensis, and new records of A. locuta-pollinis from China are herein described. In addition, based on both morphological data coupled with phylogenetics and nomenclatural analyses, A. mori is proposed as a new combination. Maximum likelihood, maximum parsimony and Bayesian analyses were performed to clarify the phylogenetic affinities of the species obtained in this study. Newly obtained strains are compared with morphologically- and phylogenetically-related taxa. The comprehensive descriptions, illustrations, and updated phylogeny are provided and discussed for intra-and intergeneric relationships within Apiospora species.
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Additions to the Knowledge of the Genus Pezicula (Dermateaceae, Helotiales, Ascomycota) in China. BIOLOGY 2022; 11:biology11101386. [PMID: 36290291 PMCID: PMC9598454 DOI: 10.3390/biology11101386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/19/2022] [Accepted: 09/20/2022] [Indexed: 11/21/2022]
Abstract
Simple Summary Species of the genus Pezicula are endophytes, phytopathogens, or saprobes, and some of them have biocontrol potential, promoting plant growth and resistance to environmental stress. The species diversity of Pezicula in China was reviewed. Two new species (P. ellipsoids and P. fusispora) and two new Chinese records (P. acericola and P. carpinea) were discovered using morphological and molecular approaches. Descriptions and illustrations of macroscopic and microscopic features were provided for the new and newly found taxa. Pezicula aurantiaca was excluded from the fungal catalogue of China. Together with the previously reported taxa (P. cinnamomea, P. ericae, P. heterochroma, P. magnispora, P. melanigena, P. neosporulosa, P. ocellata, P. rhizophila, P. cf. rubi, and P. subcarnea), 14 Pezicula species are currently known from China. The results provide updated information and improve our understanding of the genus. Abstract We describe two new species of Pezicula (Dermateaceae, Ascomycota), P. ellipsoides and P. fusispora, which are discovered in China. Pezicula ellipsoides sp. nov. is distinct in producing 2–3 stipitate apothecia on a basal stroma with a light yellow hymenium, broadly ellipsoid 0–1(–2)-septate ascospores, and divergent DNA sequence data. Pezicula fusispora sp. nov. is characterized by sessile apothecia, 0.3–0.8 mm in diam, a yellowish hymenium, J+ asci 135–170 × 15–21 μm, multiseptate ascospores, 33–48 × 7–10.3 μm, and growing on rotten bamboo. In addition, Pezicula acericola and P. carpinea are reported for the first time from China, and 11 Pezicula species previously reported from China are reviewed and briefly noted, of which one was a misidentified species. Phylogenetic analyses inferred from ITS nrDNA sequences confirm the placement of P. ellipsoides and P. cinnamomea in the genus Pezicula.
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Morpho-Molecular Characterization of Microfungi Associated with Phyllostachys (Poaceae) in Sichuan, China. J Fungi (Basel) 2022; 8:jof8070702. [PMID: 35887458 PMCID: PMC9325152 DOI: 10.3390/jof8070702] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/27/2022] [Accepted: 06/28/2022] [Indexed: 12/07/2022] Open
Abstract
In the present study, we surveyed the ascomycetes from bamboo of Phyllostachys across Sichuan Province, China. A biphasic approach based on morphological characteristics and multigene phylogeny confirmed seven species, including one new genus, two new species, and five new host record species. A novel genus Paralloneottiosporina is introduced to accommodate Pa. sichuanensis that was collected from leaves of Phyllostachys violascens. Moreover, the newly introduced species Bifusisporella sichuanensis was isolated from leaves of P. edulis, and five species were newly recorded on bamboos, four species belonging to Apiospora, viz. Ap. yunnana, Ap. neosubglobosa, Ap. jiangxiensis, and Ap. hydei, and the last species, Seriascoma yunnanense, isolated from dead culms of P. heterocycla. Morphologically similar and phylogenetically related taxa were compared. Comprehensive descriptions, color photo plates of micromorphology are provided.
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One New Species and Two New Host Records of Apiospora from Bamboo and Maize in Northern Thailand with Thirteen New Combinations. Life (Basel) 2021; 11:life11101071. [PMID: 34685442 PMCID: PMC8538084 DOI: 10.3390/life11101071] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 09/21/2021] [Accepted: 10/02/2021] [Indexed: 11/16/2022] Open
Abstract
The genus Apiospora is known as a cosmopolitan genus, found across various substrates. In this study, four Apiospora taxa were obtained from the decaying stems of bamboo and maize in northern Thailand. Apiospora collections were compared with known species based on the morphological characteristics and the DNA sequence data of internal transcribed spacer (ITS), the partial large subunit nuclear rDNA (LSU), the translation elongation factor 1-alpha gene (TEF1-α) and beta-tubulins (TUB2). Apiospora chiangraiense sp. nov. and two new host records (Ap. intestini and Ap. rasikravindra) are introduced here based on the morphological characteristics and multi-locus analyses. Additionally, thirteen species previously identified as Arthrinium are introduced as new combinations in Apiospora, viz., Ap. acutiapica, Ap. bambusicola, Ap. biserialis, Ap. cordylines, Ap. cyclobalanopsidis, Ap. euphorbiae, Ap. gelatinosa, Ap. locuta-pollinis, Ap. minutispora, Ap. pseudorasikravindrae, Ap. septate, Ap. setariae and Ap. sorghi.
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