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Polyurethane-degrading fungi from soils contaminated with rocket propellant and their ability to decompose alkyne terminated polybutadiene with urethane

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Studies in Fungi 2021年第1期6卷 224-239页

作者： Ren GC Pang AM Gao Y Wu SX Ge ZQ Zhang TF Wanasinghe DN Khan S Mortimer PE Xu JC Gui H Center of Excellence in Fungal Research Mae Fah Luang UniversityChiang Rai 57100Thailand Guiyang Nursing Vocational College Guiyang 550081GuizhouChina Honghe Center for Mountain Futures Kunming Institute of BotanyChinese Academy of SciencesHonghe County 654400YunnanChina School of Science Mae Fah Luang UniversityChiang Rai 57100Thailand Science and Technology on Aerospace Chemical Power Laboratory Hubei Institute of Aerospace ChemotechnologyXiangyang441003HubeiChina

A large amount of propellant materials are produced every year,and storage and disposal of these propellant materials seriously contributes to environmental pollution.Alkyne terminated polybutadiene with urethane segments(PUPB)is the macromolecule backbone of these propellant materials,and degradation of PUPB is central to the eco-friendly treatment of propellant materials.In this study,we isolated a polyurethane(PU)-and PUPB-degrading fungus from soils contaminated with rocket propellant,and the fungus H14 was identified as Fusarium solani(Mart.)Sacc.based on macro-and micro-morphology as well as phylogenetic analyses.The ability of F.solani H14 to degrade PU film and PUPB patches was evaluated via mass loss,scanning electron microscopy(SEM)and enzyme production ability.Mass loss analyses revealed a 25.8%reduction in mass of PU and 1.3%reduction in mass of PUPB after F.solani H14 was incubated with PU and PUPB for 90 days,respectively.We found that F.solani H14 mycelia significantly colonized both PU and PUPB.SEM images showed that the surface of PU films and PUPB patches formed holes,underwent folding and experienced damage as well as irregular fissuring from the erosion of fungal hypha.Moreover,two possible degradative enzymes,lipase and esterase,were produced by F.solani.Our study opens a new avenue of research for eco-friendly treatments of explosive materials and propellants.This paper represents the first article on the degradation of PUPB patches.

关键词： enzyme Fusarium solani mass loss PU PUPB

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Saprobic Dothideomycetes in Thailand: Vaginatispora appendiculata sp. nov. (Lophiostomataceae) introduced based on morphological and molecular data

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Studies in Fungi 2016年第1期1卷 56-68页

作者： Wanasinghe DN Jones EBG Dissanayake AJ Hyde KD Center of Excellence in Fungal Research Mae Fah Luang UniversityChiang Rai57100Thailand School of Science Mae Fah Luang UniversityChiang Rai57100Thailand Department of Botany and Microbiology King Saudi UniversityRiyadhSaudi Arabia Institute of Plant and Environment Protection Beijing Academy of Agriculture and Forestry SciencesNo.9 of Shu Guang Hua Yuan Zhong LuHaidian DistrictBeijing 100097P.R.China

In order to establish the evolutionary relationships and resolve the polyphyletic nature of Dothideomycetes,we are studying their natural classification based on both morphology and multigene phylogeny.In this paper we introduce Vaginatispora appendiculata,a novel species on dead twigs from southern Thailand.Morphological character differences and analyses of combined LSU,TEF,SSU and ITS sequence datasets support the validity of the new species and its placement in Vaginatispora(Lophiostomataceae).

关键词： Appendages Massarina Phylogeny

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Saprobic Dothideomycetes in Thailand:Muritestudina gen.et sp.nov.(Testudinaceae)a new terrestrial pleosporalean ascomycete,with hyaline and muriform ascospores

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Studies in Fungi 2017年第1期2卷 219-234页

作者： Wanasinghe DN Jeewon R Tibpromma S Jones EBG Hyde KD Center of Excellence in Fungal Research Mae Fah Luang UniversityChiang Rai57100Thailand Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of ScienceKunming 650201YunnanPeople’s Republic of China Department of Health Sciences Faculty of ScienceUniversity of MauritiusReduitMauritius Nantgaredig 33 B St.Edwards RoadSouthseaHantsHampshire PO53DHUK

The family Testudinaceae and its intergeneric classification are poorly understood.This is due to overlap of morphological characteristics in genera and lack of dnA sequence data to infer phylogenetic relationships.The main objective of the present paper is to establish a novel genus,Muritestudina,based on distinct morphological characteristics and analyses of combined LSU,SSU,ITS,rpb2 and tef1 sequence data.We also fill the gap of our current knowledge on the phylogenetic position of Testudinaceae.Based on the morphological characteristics of species representing existing genera of Testudinaceae,we herein introduce a new genus,Muritestudina with M.chiangraiensis as the type species.The new genus is characterized by globose to subglobose,ostiolate ascomata;a peridium of brown to dark-brown cells of textura angularis;septate and cellular pseudoparaphyses;cylindric-clavate asci with a distinct pedicel;and hyaline,ellipsoidal and muriform ascospores.The new genus differs from the other genera in Testudinaceae in having hyaline,muriform ascospores.Combined analyses of ribosomal and protein coding gene sequence data confirmed that our new taxon belongs in Testudinaceae with a close relationship with Neotestudina rosatii.

关键词： Ascomycota phylogeny Pleosporales taxonomy

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Taxonomic circumscription and phylogenetics of novel didymellaceous taxa with brown muriform spores

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Studies in Fungi 2018年第1期3卷 152-175页

作者： Wanasinghe DN Jeewon R Peršoh D Jones EBG Camporesi E Bulgakov TS Gafforov YS Hyde KD Key Laboratory for Plant Biodiversity and Biogeography of East Asia(KLPB) Kunming Institute of BotanyChinese Academy of ScienceKunming 650201Yunnan China Center of Excellence in Fungal Research Mae Fah Luang UniversityChiang Rai57100Thailand World Agro Forestry Centre East and Central Asia132 Lanhei RoadKunming 650201Yunnan China Department of Health Sciences Faculty of ScienceUniversity of MauritiusReduitMauritius AG Geobotany Faculty of Biology and BiotechnologyRuhr-Universitat BochumUniversitatsstraße 15044801 BochumGermany Nantgaredig 33B St.Edwards RoadSouthseaHants.PO53DHUK Societàper gli Studi Naturalistici della Romagna C.P.144Bagnacavallo(RA)Italy A.M.B.Gruppo Micologico Forlivese“Antonio Cicognani” Via Roma 18ForlìItaly A.M.B.Circolo Micologico“Giovanni Carini” C.P.314BresciaItaly Russian Research Institute of Floriculture and Subtropical Crops Sochi354002Yana Fabritsiusa street2/28Krasnodar regionRussia Laboratory of Mycology Institute of BotanyAcademy of Sciences of the Republic of Uzbekistan32 Durmon yuli StreetTashkent 100125Uzbekistan

Sexual morph of didymellaceous taxa are characterized by their ascomata with relatively thin peridium,cylindric-clavate to clavate,short-pedicellate or apedicellate asci,hyaline to brown,1-septate to muriform ascospores.Its asexual morphs are coelomycetous and comprising pycnidial or acervulus conidiomata,phialidic,hyaline conidiogenous cells and hyaline or pale brown,septate or aseptate conidia.The majority of these cosmopolitan species are plant associated fungi which can be pathogens on a wide range of hosts and some species are of particular relevance for quarantine measures.Recent studies have significantly improved the taxonomy and systematics of didymellaceous taxa based on molecular phylogenetics.In contrast to the accurate and detailed studies on the asexual morphs which are common obligate pathogens,information on their usually saprobic sexual morphs is still limited.Among these phenotypically diverse species,spore characteristics are quite unique as most have hyaline spores with 0-1 septum,while only Neomicrosphaeropsis and Didymellocamarosporium are reported as producing pigmented,muriform spores.These dematiaceous muriform spores are characteristic of a considerable number of species that may be quite divergent in other characters.During taxonomic investigations on the diversity of didymellaceous taxa,we have isolated species from Alhagi pseudalhagi,Coronilla emerus,Cytisus sp.,Elaeagnus angustifolia and Spartium junceum in Italy,Russia and Uzbekistan.A comprehensive phylogeny,based on four loci(ITS,LSU,rpb2 and tub2)is used to infer species relationships.Comprehensive morphological descriptions and in-depth phylogenetic investigations of five new species viz.Ascochyta coronillae-emeri,Microsphaeropsis spartii-juncei,Neomicrosphaeropsis alhagi-pseudalhagi,N.cytisicola and N.elaeagni are presented.

关键词： five new species coelomycetes Italy multi-gene phylogeny Pleosporales Russia saprobic taxonomic-ambiguity Uzbekistan

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A New Record of Aspergillus vadensis (Ascomycota) Isolated from Soil in Yunnan Province,China

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Phyton-International Journal of Experimental Botany 2021年第3期90卷 1031-1039页

作者： Sadia Nadir Sehroon Khan Dhanushka N.wanasinghe Saowaluck Tibpromma Shahid Iqbal Jianchu Xu Peter Mortimer CAS Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of ScienceKunming650201China Centre for Mountain Futures Kunming Institute of BotanyKunming654400China Department of Chemistry University of Science and TechnologyBannu28100Pakistan

During a survey of soil fungi in Yunnan Province,several isolates of Aspergillus were obtained.Based on morphology and molecular analyses of internal transcribed spacer regions and intervening 5.8S nrRNA gene(ITS),β-tubulin and calmodulin(CaM)genes sequences,two isolates were identified as Aspergillus vadensis(section Nigri).A phylogenetic tree,detailed descriptions,illustrations and scanned electron microscopy morphology are provided for the new isolates.This is the first record of A.vadensis from China.

关键词： Morphology phylogeny section Nigri soil fungi

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Uncovering the hidden taxonomic diversity of fungi in Oman

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Fungal Diversity 2021年第1期106卷 229-268页

作者： Sajeewa S.N.Maharachchikumbura Dhanushka N.wanasinghe Ratchadawan Cheewangkoon Abdullah M.Al-Sadi School of Life Science and Technology University of Electronic Science and Technology of ChinaChengdu 611731People’s Republic of China CAS Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of ScienceKunming 650201YunnanPeople’s Republic of China Entomology and Plant Pathology Department Faculty of AgricultureChiang Mai UniversityChiang MaiThailand Department of Crop Sciences College of Agricultural and Marine SciencesSultan Qaboos UniversityAl-Khod 123Oman

Hot desert regions are undoubtedly challenging to fungal survival on the Arabian Peninsula.Fungi are,however,recognized as the most stress-resistant organisms among all eukaryotes,which could be a result of the rapid evolution of distinct species.Our current understanding of these microorganisms is derived from studies examining only a fraction of the overall fungal diversity.Therefore,further studies are needed to understand the diversity of fungi in desert regions.This paper highlights the taxonomy of several unusual fungal genera collected in a range of aquatic and terrestrial environments in Oman.These taxa were identified based on phylogenetic analyses of nuclear ribosomal dnA(rdnA)(LSU,SSU and ITS)and protein-coding genes(TEF,RPB2 and TUB),plus morphological comparisons.Phylogenetic analyses,including the presently recognized genera in Patellariales resulted in splitting the order into four clades in Dothideomycetes.The new family Holmiellaceae and new order Holmiellales are introduced to include Holmiella.Species of Homortomycetaceae form a well-supported and distinct clade and raise it to Homortomycetales ordo novus.Omania(Halojulellaceae),Desertiserpentica(Lophiostomata-ceae)and Montanitestudina(Testudinaceae)are described as novel genera in Dothideomycetes.A synnematous hyphomycete with basidiomycetous affinity(Corticiales)was also identified and described as Basidiodesertica.Additionally,an asexual morph was observed for Holmiella junipericola;Patellaria quercus is synonymized under P.atrata,and seven new species are described.

关键词： 14 new taxa Ascomycota Basidiomycota Desert Dothideomycetes Patellariales Saprobes

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假球壳科Comoclathris属一新种（英文）

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菌物研究 2015年第4期13卷 260-268页

作者： Dhanushka N.wanasinghe Jones E.B.Gareth Erio Camporesi Kevin D.Hyde Center of Excellence in Fungal Research Mae Fah Luang University School of Science Mae Fah Luang University Department of Botany and Microbiology King Saudi University A.M.B.Gruppo Micologico Forlivese "Antonio Cicognani" A.M.B.Circolo Micologico "Giovanni Carini " C.P.314BresciaItaly Società per gli Studi Naturalistici della Romagna C.P.144Bagnacavallo ( RA) Italy

为了建立具砖格状子囊孢子的座囊菌进化关系并解决其多系群的问题,我们通过多基因系统发育分析的方法探讨了其自然的分类系统。本文描述了具有砖格状子囊孢子的一个新种Comoclathris lini。采用LSU、SSU和ITS序列进行的多基因联合分析表... 详细信息

为了建立具砖格状子囊孢子的座囊菌进化关系并解决其多系群的问题,我们通过多基因系统发育分析的方法探讨了其自然的分类系统。本文描述了具有砖格状子囊孢子的一个新种Comoclathris lini。采用LSU、SSU和ITS序列进行的多基因联合分析表明,所有的Comoclathris属菌株聚在同一单系进化支上,其中包括了由C.lini新种菌株组成的单独分支。文中为新种提供了图示,并与Comoclathris属其他种及多孢子菌属各种进行了比较。

关键词：砖格状 Comoclathris 系统发育意大利

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Nanocomposites for electronic applications that can be embedded for textiles and wearables

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Science China(Technological Sciences) 2019年第6期62卷 895-902页

作者： SERRANO-GARCIA William JAYATHILAKA wanasinghe Arachchige Dumith Madushanka CHINNAPPAN Amutha TRAN Thang Quyet BASKAR Chinnappan THOMAS Sylvia Wilson RAMAKRISHNA Seeram Department of Electrical Engineering University of South Florida Tampa 33620 USA Department of Mechanical Engineering National University of Singapore Singapore 119077 Singapore THDC Institute of Hydropower Engineering and Technology Tehri Uttarakhand Technical University Dehradun 249001 India

In the present review, we have selected advances in electrospinning nanofibers that we envision to be embedded in textiles and wearables. These nanofibers have been proven to be excellent options for applications such as power generation, sensing, and communication. Their similitude with already known woven meshes makes these fibers perfect for electronically active textiles.These fibers offer well known characteristics such as mechanical flexibility, high surface area-to-volume ratio, light weight and can be tuned by carefully selecting the active materials in the precursor solution. Here we will discuss polymers with electroactive, piezoelectric, triboelectric and their composites that have been used in fiber structures by using the electrospinning technique.

关键词： nanofibers electrospinning electronic textiles electroactive materials

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Taxonomy,phylogeny and evolution of freshwater Hypocreomycetidae(Sordariomycetes)

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Fungal Diversity 2023年第4期121卷 1-94页

作者： Dan‑Feng Bao Kevin D.Hyde Sajeewa S.N.Maharachchikumbura Rekhani H.Perera Vinodhini Thiyagaraja Sinang Hongsanan Dhanushka N.wanasinghe Hong‑Wei Shen Xing‑Guo Tian Li‑Quan Yang Sarunya Nalumpang Zong‑Long Luo College of Agriculture and Biological Science Dali UniversityDali 671003YunnanPeople’s Republic of China Center of Excellence in Fungal Research Mae Fah Luang UniversityChiang Rai 57100Thailand Department of Entomology and Plant Pathology Faculty of AgricultureChiang Mai UniversityChiang Mai 50200Thailand School of Science Mae Fah Luang UniversityChiang Rai 57100Thailand Mushroom Research Foundation 128 M.3 Ban Pa Deng T.Pa PaeA.Mae TaengChiang Mai 50150Thailand Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of ScienceKunming 650201YunnanPeople’s Republic of China World Agroforestry Centre East and Central AsiaKunming 650201YunnanPeople’s Republic of China Innovative Institute for Plant Health Zhongkai University of Agriculture and EngineeringHaizhu DistrictGuangzhou 510225GuangdongPeople’s Republic of China School of Life Science and Technology University of Electronic Science and Technology of ChinaChengdu 611731SichuanPeople’s Republic of China Guizhou Key Laboratory of Agricultural Biotechnology Guizhou Academy of Agricultural SciencesGuiyang 550006GuizhouPeople’s Republic of China College of Life Sciences and Oceanography Shenzhen Key Laboratory of Microbial Genetic EngineeringShenzhen UniversityShenzhen 518060China Research Center of Microbial Diversity and Sustainable Utilization Faculty of SciencesChiang Mai UniversityChiang Mai 50200Thailand Honghe Center for Mountain Futures Kunming Institute of BotanyChinese Academy of SciencesHonghe 654400YunnanPeople’s Republic of China Center for Yunnan Plateau Biological Resources Protection and Utilization Yunnan Engineering Research Center of Fruit WineCollege of Biological Resource and Food EngineeringQujing Normal UniversityQujing 655011YunnanPeople’s Republic of China School of Food and Pharmaceutical Engineering Guizhou Institute of TechnologyGuiyang 550003Gui ZhouPeople’s Republic of China

Hypocreomycetidae is a highly diverse group with species from various habitats. This subclass has been reported as pathogenic,endophytic, parasitic, saprobic, fungicolous, lichenicolous, algicolous, coprophilous and insect fungi from aquatic andterrestrial habitats. In this study, we focused on freshwater fungi of Hypocreomycetidae which resulted 41 fresh collectionsfrom China and Thailand. Based on morphological and phylogenetic analyses, we identified 26 species that belong to twoorders (Hypocreales and Microascales) and six families (Bionectriaceae, Halosphaeriaceae, Microascaceae, Nectriaceae,Sarocladiaceae and Stachybotryaceae). Ten new species are introduced and 13 new habitats and geographic records arereported. Mariannaea superimposita, Stachybotrys chartarum and S. chlorohalonatus are recollected from freshwater habitatsin China. Based on phylogenetic analysis of combined LSU, ITS, SSU, rpb2 and tef1-α sequences data, Emericellopsisis transferred to Hypocreales genera incertae sedis;Pseudoacremonium is transferred to Bionectriaceae;Sedecimiella isplaced in Nectriaceae;Nautosphaeria and Tubakiella are excluded from Halosphaeriaceae and placed in Microascalesgenera incertae sedis;and Faurelina is excluded from Hypocreomycetidae. Varicosporella is placed under Atractium as asynonym of Atractium. In addition, phylogenetic analysis and divergence time estimates showed that Ascocodina, Campylospora,Cornuvesica and Xenodactylariaceae form distinct lineages in Hypocreomycetidae and they evolved in the family/order time frame. Hence, a new order (Xenodactylariales) and three new families (Ascocodinaceae, Campylosporaceae andCornuvesicaceae) are introduced based on phylogenetic analysis, divergence time estimations and morphological characters.Ancestral character state analysis is performed for different habitats of Hypocreomycetidae including freshwater, marineand terrestrial taxa. The result indicates that marine and freshwater fungi evolved independently from terrestrial ancestors.The results further support th

关键词： Ancestral character analysis Divergence time estimates Molecular clock analysis Morphology Phylogeny Freshwater fungi

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Stagonosporopsis pogostemonis:A Novel Ascomycete Fungus Causing Leaf Spot and Stem Blight on Pogostemon cablin（Lamiaceae）in South China

Stagonosporopsis pogostemonis:A Novel Ascomycete Fungus Caus...

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中国植物病理学会2021年学术年会

作者：罗梅黄影华 MANAWASINGHE Ishara sandeepani Dhanushka wanasinghe LIU Jiawei SHU Yongxin ZHAO Minping XIANG Meimei 董章勇 Innovative Institute for Plant Health Zhongkai University of Agriculture and Engineering CAS Key Laboratory for Plant Biodiversity and Biogeography of East Asia Kunming Institute of Botany

Pogostemon cablin,is one of the well-known southern Chinese medicinal plants with detoxification,anti 一 bacterial,anti-inflammatory and other pharmacological functions.Identification and characterization of phytopathogens on P.cablin are of great significance for the prevention and control of the diseases.From the spring to summer of 2019 and 2020,a leaf spot disease on Pogostemon cablin was observed in Guangdong Province,South China.The disease incidence was 15% under high temperature and humidity.Pogostemon cablin plants with necrotic leaf spots were collected from the field in Zhanjiang City,Guangdong Province,China（E110°3′,N21°2′） in the spring and summer of 2020.The pathogen was isolated and identified based on both morphological and dnA-based molecular approaches.The molecular identification was conducted using multi-gene sequences analysis of large subunit（LSU）,the nuclear ribosomal internal transcribed spacer（ITS）,beta-tubulin（β-tubulin） and RNA polymerase Ⅱ（rpb2） genes.Two isolates were obtained in this study.The combined sequence data set comprised of these two Stagonosporopsis isolates from this study and 76 reference sequences.The causal organism was identified as Stagonosporopsis pogostemonis,a novel fungal species.Pathogenicity of Stagonosporopsis pogostemonis on P.cablin was fulfilled via confining the Koch’s postulates,causing leaf spots and stem blight disease.Diseased symptoms were characterized by brown spots from the leaf tips.In some cases,these spots can coalesce and form a big scorch-like spot covering a large portion of the leaves.Moreover,some of them form perforation,wither and dropped off.Stagonosporopsis pogostemonis showed the similar symptoms to those in field conditions.

关键词： didymellaceae phoma-like pathogenicity phylogeny

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