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Dielentheis-Frenken MRE, Wibberg D, Blank LM, Tiso T. Draft genome sequence and annotation of the polyextremotolerant polyol lipid-producing fungus aureobasidium pullulans NRRL 62042. BMC Genom Data 2024; 25:75. [PMID: 39164622 PMCID: PMC11337766 DOI: 10.1186/s12863-024-01258-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Accepted: 07/26/2024] [Indexed: 08/22/2024] Open
Abstract
OBJECTIVES The ascomycotic yeast-like fungus Aureobasidium exhibits the natural ability to synthesize several secondary metabolites, like polymalic acid, pullulan, or polyol lipids, with potential biotechnological applications. Combined with its polyextremotolerance, these properties make Aureobasidium a promising production host candidate. Hence, plenty of genomes of Aureobasidia have been sequenced recently. Here, we provide the annotated draft genome sequence of the polyol lipid-producing strain A. pullulans NRRL 62042. DATA DESCRIPTION The genome of A. pullulans NRRL 62042 was sequenced using Illumina NovaSeq 6000. Genome assembly revealed a genome size of 24.2 Mb divided into 39 scaffolds with a GC content of 50.1%. Genome annotation using Genemark v4.68 and GenDBE yielded 9,596 genes.
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Affiliation(s)
| | - Daniel Wibberg
- Center for Biotechnology, Universität Bielefeld, Bielefeld, Germany
- Computational Metagenomics, Institute of Bio- and Geosciences IBG-5, Forschungszentrum Jülich GmbH, Jülich, Germany
| | - Lars M Blank
- Institute of Applied Microbiology, RWTH Aachen University, Aachen, Germany
| | - Till Tiso
- Institute of Applied Microbiology, RWTH Aachen University, Aachen, Germany.
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Yarzábal Rodríguez LA, Álvarez Gutiérrez PE, Gunde-Cimerman N, Ciancas Jiménez JC, Gutiérrez-Cepeda A, Ocaña AMF, Batista-García RA. Exploring extremophilic fungi in soil mycobiome for sustainable agriculture amid global change. Nat Commun 2024; 15:6951. [PMID: 39138171 PMCID: PMC11322326 DOI: 10.1038/s41467-024-51223-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 07/24/2024] [Indexed: 08/15/2024] Open
Abstract
As the Earth warms, alternatives to traditional farming are crucial. Exploring fungi, especially poly extremophilic and extremotolerant species, to be used as plant probiotics, represents a promising option. Extremophilic fungi offer avenues for developing and producing innovative biofertilizers, effective biocontrol agents against plant pathogens, and resilient enzymes active under extreme conditions, all of which are crucial to enhance agricultural efficiency and sustainability through improved soil fertility and decreased reliance on agrochemicals. Yet, extremophilic fungi's potential remains underexplored and, therefore, comprehensive research is needed to understand their roles as tools to foster sustainable agriculture practices amid climate change. Efforts should concentrate on unraveling the complex dynamics of plant-fungi interactions and harnessing extremophilic fungi's ecological functions to influence plant growth and development. Aspects such as plant's epigenome remodeling, fungal extracellular vesicle production, secondary metabolism regulation, and impact on native soil microbiota are among many deserving to be explored in depth. Caution is advised, however, as extremophilic and extremotolerant fungi can act as both mitigators of crop diseases and as opportunistic pathogens, underscoring the necessity for balanced research to optimize benefits while mitigating risks in agricultural settings.
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Grants
- This work was supported by Fondo Nacional de Innovación y Desarrollo Científico-Tecnológico (FONDOCYT), Ministerio de Educación Superior, Ciencia y Tecnología (MESCYT), Government of Dominican Republic: Project COD. 2022-2B2-078. This work was supported by Darwin Initiative Round 27: Partnership Project DARPP220, and Darwin Initiative Round 30: Project DIR30S2/1004. This study was also supported by funding from the Slovenian Research Agency to Infrastructural Centre Mycosmo (MRIC UL, I0-0022), programs P4-0432 and P1-0198. Authors appreciate the support received from the European Commission – Program H2020, Project GEN4OLIVE: 101000427, Topic SFS-28-2018-2019-2020 Genetic resources and pre-breeding communities. RAB-G received a Sabbatical fellowship (CVU: 389616) from the National Council of Humanities, Sciences and Technologies (CONAHCyT), Government of Mexico. This work was supported by RYC2022-037554-I project funded by MCIN/AEI/10.13039/501100011033 and FSE+.
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Affiliation(s)
- Luis Andrés Yarzábal Rodríguez
- Carrera de Bioquímica y Farmacia. Grupo de Microbiología Molecular y Biotecnología (GI-M2YB). Unidad de Salud y Bienestar, Universidad Católica de Cuenca, Cuenca, Ecuador
| | | | - Nina Gunde-Cimerman
- Departament of Biology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | | | - Adrián Gutiérrez-Cepeda
- Instituto de Investigación en Salud, Facultad de Ciencias de la Salud, Universidad Autónoma de Santo Domingo, Santo Domingo, Dominican Republic
- Instituto de Química, Facultad de Ciencias, Universidad Autónoma de Santo Domingo, Santo Domingo, Dominican Republic
| | - Ana María Fernández Ocaña
- Departamento de Biología Animal, Biología Vegetal y Ecología. Facultad de Ciencias Experimentales, Universidad de Jaén, Jaén, Spain
| | - Ramón Alberto Batista-García
- Departamento de Biología Animal, Biología Vegetal y Ecología. Facultad de Ciencias Experimentales, Universidad de Jaén, Jaén, Spain.
- Centro de Investigación en Dinámica Celular, Instituto de Investigación en Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, Mexico.
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Xiao D, Driller M, Dielentheis‐Frenken M, Haala F, Kohl P, Stein K, Blank LM, Tiso T. Advances in Aureobasidium research: Paving the path to industrial utilization. Microb Biotechnol 2024; 17:e14535. [PMID: 39075758 PMCID: PMC11286673 DOI: 10.1111/1751-7915.14535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Accepted: 07/10/2024] [Indexed: 07/31/2024] Open
Abstract
We here explore the potential of the fungal genus Aureobasidium as a prototype for a microbial chassis for industrial biotechnology in the context of a developing circular bioeconomy. The study emphasizes the physiological advantages of Aureobasidium, including its polyextremotolerance, broad substrate spectrum, and diverse product range, making it a promising candidate for cost-effective and sustainable industrial processes. In the second part, recent advances in genetic tool development, as well as approaches for up-scaled fermentation, are described. This review adds to the growing body of scientific literature on this remarkable fungus and reveals its potential for future use in the biotechnological industry.
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Affiliation(s)
- Difan Xiao
- iAMB – Institute of Applied Microbiology, ABBt – Aachen Biology and BiotechnologyRWTH Aachen UniversityAachenGermany
| | - Marielle Driller
- iAMB – Institute of Applied Microbiology, ABBt – Aachen Biology and BiotechnologyRWTH Aachen UniversityAachenGermany
| | - Marie Dielentheis‐Frenken
- iAMB – Institute of Applied Microbiology, ABBt – Aachen Biology and BiotechnologyRWTH Aachen UniversityAachenGermany
| | - Frederick Haala
- iAMB – Institute of Applied Microbiology, ABBt – Aachen Biology and BiotechnologyRWTH Aachen UniversityAachenGermany
| | - Philipp Kohl
- iAMB – Institute of Applied Microbiology, ABBt – Aachen Biology and BiotechnologyRWTH Aachen UniversityAachenGermany
| | - Karla Stein
- iAMB – Institute of Applied Microbiology, ABBt – Aachen Biology and BiotechnologyRWTH Aachen UniversityAachenGermany
| | - Lars M. Blank
- iAMB – Institute of Applied Microbiology, ABBt – Aachen Biology and BiotechnologyRWTH Aachen UniversityAachenGermany
| | - Till Tiso
- iAMB – Institute of Applied Microbiology, ABBt – Aachen Biology and BiotechnologyRWTH Aachen UniversityAachenGermany
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4
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Vieira MM, Valadares FL, Velasco J, da Silva SS, Segato F, Chandel AK. Analysis of Aureobasidium pullulans LB83 secretome reveals distinct carbohydrate active enzymes for biomass saccharification. Prep Biochem Biotechnol 2024; 54:729-735. [PMID: 37966162 DOI: 10.1080/10826068.2023.2279109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2023]
Abstract
Aureobasidium pullulans LB83 is a versatile biocatalyst that produces a plethora of bioactive products thriving on a variety of feedstocks under the varying culture conditions. In our last study using this microorganism, we found cellulase activity (FPase, 2.27 U/ml; CMCase, 7.42 U/ml) and other plant cell wall degrading enzyme activities grown on sugarcane bagasse and soybean meal as carbon source and nitrogen, respectively. In the present study, we provide insights on the secretome analysis of this enzymatic cocktail. The secretome analysis of A. pullulans LB83 by Liquid Chromatography coupled to Mass Spectroscopy (LC-MS/MS) revealed 38 classes of Carbohydrate Active enZymes (CAZymes) of a total of 464 identified proteins. These CAZymes consisted of 21 glycoside hydrolases (55.26%), 12 glycoside hydrolases harboring carbohydrate-binding module (31.58%), 4 carbohydrate esterases (10.53%) and one glycosyl transferase (2.63%). To the best of our knowledge, this is the first report on the secretome analysis of A. pullulans LB83.
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Affiliation(s)
- Matheus Maitan Vieira
- Department of Biotechnology, Engineering School of Lorena- University of São Paulo, Lorena, Brazil
| | - Fernanda Lima Valadares
- Department of Biotechnology, Engineering School of Lorena- University of São Paulo, Lorena, Brazil
| | - Josman Velasco
- Department of Biotechnology, Engineering School of Lorena- University of São Paulo, Lorena, Brazil
| | - Silvio S da Silva
- Department of Biotechnology, Engineering School of Lorena- University of São Paulo, Lorena, Brazil
| | - Fernando Segato
- Department of Biotechnology, Engineering School of Lorena- University of São Paulo, Lorena, Brazil
| | - Anuj K Chandel
- Department of Biotechnology, Engineering School of Lorena- University of São Paulo, Lorena, Brazil
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Onetto CA, Ward CM, Van Den Heuvel S, Hale L, Cuijvers K, Borneman AR. Temporal and spatial dynamics within the fungal microbiome of grape fermentation. Environ Microbiol 2024; 26:e16660. [PMID: 38822592 DOI: 10.1111/1462-2920.16660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Accepted: 05/10/2024] [Indexed: 06/03/2024]
Abstract
Over 6 years, we conducted an extensive survey of spontaneous grape fermentations, examining 3105 fungal microbiomes across 14 distinct grape-growing regions. Our investigation into the biodiversity of these fermentations revealed that a small number of highly abundant genera form the core of the initial grape juice microbiome. Consistent with previous studies, we found that the region of origin had the most significant impact on microbial diversity patterns. We also discovered that certain taxa were consistently associated with specific geographical locations and grape varieties, although these taxa represented only a minor portion of the overall diversity in our dataset. Through unsupervised clustering and dimensionality reduction analysis, we identified three unique community types, each exhibiting variations in the abundance of key genera. When we projected these genera onto global branches, it suggested that microbiomes transition between these three broad community types. We further investigated the microbial community composition throughout the fermentation process. Our observations indicated that the initial microbial community composition could predict the diversity during the early stages of fermentation. Notably, Hanseniaspora uvarum emerged as the primary non-Saccharomyces species within this large collection of samples.
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Affiliation(s)
- Cristobal A Onetto
- The Australian Wine Research Institute, Glen Osmond, South Australia, Australia
- School of Wine, Food and Agriculture, The University of Adelaide, Adelaide, South Australia, Australia
| | - Chris M Ward
- The Australian Wine Research Institute, Glen Osmond, South Australia, Australia
| | | | - Laura Hale
- The Australian Wine Research Institute, Glen Osmond, South Australia, Australia
| | - Kathleen Cuijvers
- The Australian Wine Research Institute, Glen Osmond, South Australia, Australia
| | - Anthony R Borneman
- The Australian Wine Research Institute, Glen Osmond, South Australia, Australia
- School of Wine, Food and Agriculture, The University of Adelaide, Adelaide, South Australia, Australia
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6
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Gostinčar C, Gunde-Cimerman N. Black yeasts in hypersaline conditions. Appl Microbiol Biotechnol 2024; 108:252. [PMID: 38441672 PMCID: PMC10914880 DOI: 10.1007/s00253-024-13052-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 01/26/2024] [Accepted: 02/02/2024] [Indexed: 03/07/2024]
Abstract
Extremotolerant and extremophilic fungi are an important part of microbial communities that thrive in extreme environments. Among them, the black yeasts are particularly adaptable. They use their melanized cell walls and versatile morphology, as well as a complex set of molecular adaptations, to survive in conditions that are lethal to most other species. In contrast to extremophilic bacteria and archaea, these fungi are typically extremotolerant rather than extremophilic and exhibit an unusually wide ecological amplitude. Some extremely halotolerant black yeasts can grow in near-saturated NaCl solutions, but can also grow on normal mycological media. They adapt to the low water activity caused by high salt concentrations by sensing their environment, balancing osmotic pressure by accumulating compatible solutes, removing toxic salt ions from the cell using membrane transporters, altering membrane composition and remodelling the highly melanized cell wall. As protection against extreme conditions, halotolerant black yeasts also develop different morphologies, from yeast-like to meristematic. Genomic studies of black yeasts have revealed a variety of reproductive strategies, from clonality to intense recombination and the formation of stable hybrids. Although a comprehensive understanding of the ecological role and molecular adaptations of halotolerant black yeasts remains elusive and the application of many experimental methods is challenging due to their slow growth and recalcitrant cell walls, much progress has been made in deciphering their halotolerance. Advances in molecular tools and genomics are once again accelerating the research of black yeasts, promising further insights into their survival strategies and the molecular basis of their adaptations. KEY POINTS: • Black yeasts show remarkable adaptability to environmental stress • Black yeasts are part of microbial communities in hypersaline environments • Halotolerant black yeasts utilise various molecular and morphological adaptations.
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Affiliation(s)
- Cene Gostinčar
- Biotechnical Faculty, Department of Biology, University of Ljubljana, Jamnikarjeva 101, 1000, Ljubljana, Slovenia
| | - Nina Gunde-Cimerman
- Biotechnical Faculty, Department of Biology, University of Ljubljana, Jamnikarjeva 101, 1000, Ljubljana, Slovenia.
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7
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Rensink S, van Nieuwenhuijzen EJ, Sailer MF, Struck C, Wösten HAB. Use of Aureobasidium in a sustainable economy. Appl Microbiol Biotechnol 2024; 108:202. [PMID: 38349550 PMCID: PMC10864419 DOI: 10.1007/s00253-024-13025-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2024]
Abstract
Aureobasidium is omnipresent and can be isolated from air, water bodies, soil, wood, and other plant materials, as well as inorganic materials such as rocks and marble. A total of 32 species of this fungal genus have been identified at the level of DNA, of which Aureobasidium pullulans is best known. Aureobasidium is of interest for a sustainable economy because it can be used to produce a wide variety of compounds, including enzymes, polysaccharides, and biosurfactants. Moreover, it can be used to promote plant growth and protect wood and crops. To this end, Aureobasidium cells adhere to wood or plants by producing extracellular polysaccharides, thereby forming a biofilm. This biofilm provides a sustainable alternative to petrol-based coatings and toxic chemicals. This and the fact that Aureobasidium biofilms have the potential of self-repair make them a potential engineered living material avant la lettre. KEY POINTS: •Aureobasidium produces products of interest to the industry •Aureobasidium can stimulate plant growth and protect crops •Biofinish of A. pullulans is a sustainable alternative to petrol-based coatings •Aureobasidium biofilms have the potential to function as engineered living materials.
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Affiliation(s)
- Stephanie Rensink
- Department of Biology, Microbiology, Utrecht University, Padualaan 8, 3584 CH, Utrecht, the Netherlands.
- Department of Business, Building and Technology, Sustainable Building Technology, Saxion University of Applied Sciences, M.H. Tromplaan 28, 7513 AB, Enschede, the Netherlands.
| | - Elke J van Nieuwenhuijzen
- Faculty of Technology, Amsterdam University of Applied Sciences, Rhijnspoorplein 2, 1091 GC, Amsterdam, The Netherlands
| | - Michael F Sailer
- Department of Business, Building and Technology, Sustainable Building Technology, Saxion University of Applied Sciences, M.H. Tromplaan 28, 7513 AB, Enschede, the Netherlands
| | - Christian Struck
- Department of Business, Building and Technology, Sustainable Building Technology, Saxion University of Applied Sciences, M.H. Tromplaan 28, 7513 AB, Enschede, the Netherlands
| | - Han A B Wösten
- Department of Biology, Microbiology, Utrecht University, Padualaan 8, 3584 CH, Utrecht, the Netherlands
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8
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Zhou R, Ma L, Qin X, Zhu H, Chen G, Liang Z, Zeng W. Efficient Production of Melanin by Aureobasidium Melanogenum Using a Simplified Medium and pH-Controlled Fermentation Strategy with the Cell Morphology Analysis. Appl Biochem Biotechnol 2024; 196:1122-1141. [PMID: 37335457 DOI: 10.1007/s12010-023-04594-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/26/2023] [Indexed: 06/21/2023]
Abstract
Natural melanin is a biopolymer with wide application prospects in medicine, food, cosmetics, environmental protection, agriculture, and so on. Microbial fermentation is an important and effective way to produce melanin. In this study, Aureobasidium melanogenum, known as black yeast with cellular pleomorphism, was used for the production of melanin. Based on the characteristic of A. melanogenum secreting melanin under oligotrophic stress, a simple medium containing only glucose, MgSO4·7H2O, and KCl was constructed for the production of melanin. The melanin titer of 6.64 ± 0.22 g/L was obtained after 20 days of fermentation without pH control. The cell morphological changes of A. melanogenum during the production of melanin were recorded, and the results showed that chlamydospore might be the most favorable cell morphology for melanin synthesis. Then, different fermentation strategies with cell morphology analysis were developed to further improve the production of melanin in a 5-L fermenter. Results showed that the maximum titer of melanin reached 18.50 g/L by using the fermentation strategy integrating pH control, ammonium salt addition, and H2O2 stimulation, which increased by 178.6% than that of the strategy without pH control. Furthermore, the melanin obtained from the fermentation broth was characterized as eumelanin containing an indole structure. This study provided a potentially feasible fermentation strategy for the industrial production of melanin.
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Affiliation(s)
- Ran Zhou
- Key Laboratory of Biochemistry and Molecular Biology (Guilin Medical University), Education Department of Guangxi Zhuang Autonomous Region, Guilin Medical University, 1 Zhiyuan Road, Guilin, 541199, Guangxi, China
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Microorganism and Enzyme Research Center of Engineering Technology, College of Life Science and Technology , Guangxi University, 100 Daxue Road, Nanning, 530004, Guangxi, China
| | - Lan Ma
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Microorganism and Enzyme Research Center of Engineering Technology, College of Life Science and Technology , Guangxi University, 100 Daxue Road, Nanning, 530004, Guangxi, China
| | - Xuwen Qin
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Microorganism and Enzyme Research Center of Engineering Technology, College of Life Science and Technology , Guangxi University, 100 Daxue Road, Nanning, 530004, Guangxi, China
| | - Hui Zhu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Microorganism and Enzyme Research Center of Engineering Technology, College of Life Science and Technology , Guangxi University, 100 Daxue Road, Nanning, 530004, Guangxi, China
| | - Guiguang Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Microorganism and Enzyme Research Center of Engineering Technology, College of Life Science and Technology , Guangxi University, 100 Daxue Road, Nanning, 530004, Guangxi, China
| | - Zhiqun Liang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Microorganism and Enzyme Research Center of Engineering Technology, College of Life Science and Technology , Guangxi University, 100 Daxue Road, Nanning, 530004, Guangxi, China
| | - Wei Zeng
- Key Laboratory of Biochemistry and Molecular Biology (Guilin Medical University), Education Department of Guangxi Zhuang Autonomous Region, Guilin Medical University, 1 Zhiyuan Road, Guilin, 541199, Guangxi, China.
- School of Intelligent Medicine and Biotechnology, Guilin Medical University, 1 Zhiyuan Road, Guilin, 541199, Guangxi, China.
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Microorganism and Enzyme Research Center of Engineering Technology, College of Life Science and Technology , Guangxi University, 100 Daxue Road, Nanning, 530004, Guangxi, China.
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Park J, Mannaa M, Han G, Jung H, Jeon HS, Kim JC, Park AR, Seo YS. Transcriptomic Insights into Abies koreana Drought Tolerance Conferred by Aureobasidium pullulans AK10. THE PLANT PATHOLOGY JOURNAL 2024; 40:30-39. [PMID: 38326956 PMCID: PMC10850533 DOI: 10.5423/ppj.ft.11.2023.0161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 11/30/2023] [Accepted: 12/03/2023] [Indexed: 02/09/2024]
Abstract
The conservation of the endangered Korean fir, Abies koreana, is of critical ecological importance. In our previous study, a yeast-like fungus identified as Aureobasidium pullulans AK10, was isolated and shown to enhance drought tolerance in A. koreana seedlings. In this study, the effectiveness of Au. pullulans AK10 treatment in enhancing drought tolerance in A. koreana was confirmed. Furthermore, using transcriptome analysis, we compared A. koreana seedlings treated with Au. pullulans AK10 to untreated controls under drought conditions to elucidate the molecular responses involved in increased drought tolerance. Our findings revealed a predominance of downregulated genes in the treated seedlings, suggesting a strategic reallocation of resources to enhance stress defense. Further exploration of enriched Kyoto Encyclopedia of Genes and Genomes pathways and protein-protein interaction networks revealed significant alterations in functional systems known to fortify drought tolerance, including the terpenoid backbone biosynthesis, calcium signaling pathway, pyruvate metabolism, brassinosteroid biosynthesis, and, crucially, flavonoid biosynthesis, renowned for enhancing plant drought resistance. These findings deepen our comprehension of how AK10 biostimulation enhances the resilience of A. koreana to drought stress, marking a substantial advancement in the effort to conserve this endangered tree species through environmentally sustainable treatment.
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Affiliation(s)
- Jungwook Park
- Department of Integrated Biological Science, Pusan National University, Busan 46241, Korea
- Biotechnology Research Division, National Institute of Fisheries Science, Busan 46083, Korea
| | - Mohamed Mannaa
- Department of Integrated Biological Science, Pusan National University, Busan 46241, Korea
- Department of Plant Pathology, Cairo University, Faculty of Agriculture, Giza 12613, Egypt
| | - Gil Han
- Department of Integrated Biological Science, Pusan National University, Busan 46241, Korea
| | - Hyejung Jung
- Department of Integrated Biological Science, Pusan National University, Busan 46241, Korea
- Biotechnology Research Division, National Institute of Fisheries Science, Busan 46083, Korea
| | - Hyo Seong Jeon
- Department of Agricultural Chemistry, Institute of Environmentally Friendly Agriculture, College of Agriculture and Life Science, Chonnam National University, Gwangju 61186, Korea
| | - Jin-Cheol Kim
- Department of Agricultural Chemistry, Institute of Environmentally Friendly Agriculture, College of Agriculture and Life Science, Chonnam National University, Gwangju 61186, Korea
| | - Ae Ran Park
- Department of Agricultural Chemistry, Institute of Environmentally Friendly Agriculture, College of Agriculture and Life Science, Chonnam National University, Gwangju 61186, Korea
| | - Young-Su Seo
- Department of Integrated Biological Science, Pusan National University, Busan 46241, Korea
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10
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De Castro O, Avino M, Carraturo F, Di Iorio E, Giovannelli D, Innangi M, Menale B, Mormile N, Troisi J, Guida M. Profiling microbial communities in an extremely acidic environment influenced by a cold natural carbon dioxide spring: A study of the Mefite in Ansanto Valley, Southern Italy. ENVIRONMENTAL MICROBIOLOGY REPORTS 2024; 16:e13241. [PMID: 38407001 PMCID: PMC10895555 DOI: 10.1111/1758-2229.13241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 01/30/2024] [Indexed: 02/27/2024]
Abstract
The Ansanto Valley's Mefite, one of the Earth's largest non-volcanic CO2 gas emissions, is distinguished by its cold natural carbon dioxide springs. These emissions originate from the intricate tectonics and geodynamics of the southern Apennines in Italy. Known for over two millennia for its lethal concentration of CO2 and other harmful gases, the Mefite has a reputation for being toxic and dangerous. Despite its historical significance and unique geological features, there is a lack of information on the microbial diversity associated with the Mefite's gas emissions. This study presents an integrated exploration of the microbial diversity in the mud soil, using high-throughput sequencing of 16S rRNA (Prokaryotes) and ITS2 (Fungi), alongside a geochemical site characterisation. Our findings reveal that the Mefite's unique environment imposes a significant bottleneck on microbial diversity, favouring a select few microbial groups such as Actinobacteria and Firmicutes for Prokaryotes, and Basidiomycota for Fungi.
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Affiliation(s)
- Olga De Castro
- Department of BiologyUniversity of Naples Federico IINaplesItaly
- Botanical GardenNaplesItaly
| | - Mariano Avino
- Department of Biochemistry and Functional GenomicsSherbrooke UniversitySherbrookeQuebecCanada
| | | | | | - Donato Giovannelli
- Department of BiologyUniversity of Naples Federico IINaplesItaly
- National Research CouncilInstitute of Marine Biological Resources and Biotechnologies—CNR‐IRBIMAnconaItaly
- Department of Marine and Coastal ScienceRutgers UniversityNew BrunswickNew JerseyUSA
- Marine Chemistry & Geochemistry DepartmentWoods Hole Oceanographic InstitutionWoods HoleMassachusettsUSA
- Earth‐Life Science InstituteTokyo Institute of TechnologyTokyoJapan
| | - Michele Innangi
- EnvixLab, Department of Biosciences and TerritoryUniversity of Molise Contrada Fonte LapponePesche (IS)Italy
| | - Bruno Menale
- Department of BiologyUniversity of Naples Federico IINaplesItaly
- Botanical GardenNaplesItaly
| | - Nicolina Mormile
- Department of BiologyUniversity of Naples Federico IINaplesItaly
| | - Jacopo Troisi
- European Biomedical Research Institute of Salerno (EBRIS)SalernoItaly
- Theoreo srlMontecorvino Pugliano (SA)Italy
| | - Marco Guida
- Department of BiologyUniversity of Naples Federico IINaplesItaly
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11
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Grandhay C, Prétot E, Klaba V, Celle H, Normand AC, Bertrand X, Grenouillet F. Yeast Biodiversity of Karst Waters: Interest of Four Culture Media and an Improved MALDI-TOF MS Database. MICROBIAL ECOLOGY 2024; 87:26. [PMID: 38175217 PMCID: PMC10766713 DOI: 10.1007/s00248-023-02336-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 12/22/2023] [Indexed: 01/05/2024]
Abstract
Karst aquifers are a significant source of drinking water and highly vulnerable to pollution and microbial contamination. Microbiological regulations for the quality of drinking water mostly focus on bacterial levels and lack guidance concerning fungal contamination. Moreover, there is no standardised microbial analysis methodology for identifying fungi in water. Our main objective was to establish the most effective culture and identification methodology to examine yeast diversity in karst waters. We assessed the comparative efficacy of four culture media (CHROMagar Candida, dichloran glycerol 18% [DG18], dichloran rose Bengal chloramphenicol [DRBC], and SYMPHONY agar) for yeast isolation from karst water samples. Furthermore, we investigated the comprehensiveness of databases used in MALDI-TOF mass spectrometry (MALDI-TOF MS) for identifying environmental yeast species. In total, we analysed 162 water samples, allowing the identification of 2479 yeast isolates. We demonstrate that a combination of four culture media, each with distinct specifications, more efficiently covers a wide range of yeast species in karst water than a combination of only two or three. Supplementation of a MALDI-TOF MS database is also critical for analysing environmental microbial samples and improved the identification of yeast biodiversity. This study is an initial step towards standardising the analysis of fungal biodiversity in karst waters, enabling a better understanding of the significance of this environmental reservoir in relation to public health.
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Affiliation(s)
- Clément Grandhay
- Université de Franche-Comté, CHU Besançon, CNRS, Chrono-environnement, F-25000, Besançon, France
| | - Emma Prétot
- Université de Franche-Comté, CHU Besançon, CNRS, Chrono-environnement, F-25000, Besançon, France
| | - Victor Klaba
- Université de Franche-Comté, CNRS, Chrono-environnement, F-25000, Besançon, France
| | - Hélène Celle
- Université de Franche-Comté, CNRS, Chrono-environnement, F-25000, Besançon, France
| | - Anne-Cécile Normand
- AP-HP, Groupe Hospitalier La Pitié-Salpêtrière, Service de Parasitologie Mycologie, 75013, Paris, France
| | - Xavier Bertrand
- Université de Franche-Comté, CHU Besançon, CNRS, Chrono-environnement, F-25000, Besançon, France
- Université de Franche-Comté, CNRS, Chrono-environnement, F-25000, Besançon, France
| | - Frédéric Grenouillet
- Université de Franche-Comté, CHU Besançon, CNRS, Chrono-environnement, F-25000, Besançon, France.
- Université de Franche-Comté, CNRS, Chrono-environnement, F-25000, Besançon, France.
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12
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Mannaa M, Han G, Jung H, Park J, Kim JC, Park AR, Seo YS. Aureobasidium pullulans Treatment Mitigates Drought Stress in Abies koreana via Rhizosphere Microbiome Modulation. PLANTS (BASEL, SWITZERLAND) 2023; 12:3653. [PMID: 37896116 PMCID: PMC10610362 DOI: 10.3390/plants12203653] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 10/20/2023] [Accepted: 10/22/2023] [Indexed: 10/29/2023]
Abstract
The Korean fir tree Abies koreana, an endangered species in Korea, faces threats primarily from climate change-induced stress and drought. This study proposed a sustainable method to enhance A. koreana drought tolerance using a black yeast-like fungus identified as Aureobasidium pullulans (AK10). The 16S/ITS metabarcoding analysis assessed the impact of drought and AK10 treatment on the seedlings' rhizosphere microbiome. Results revealed a profound drought influence on the microbiome, particularly affecting fungal mycobiota. Drought-stressed seedlings exhibited elevated Agaricaceae levels, opportunistic fungi generally associated with decomposition. AK10 treatment significantly mitigated this proliferation and increased the relative abundance of beneficial fungi like Cystofilobasidium and Mortierella, known biocontrol agents and phosphate solubilizers. A notable reduction in the phytopathogenic Fusarium levels was observed with AK10, alongside an increase in beneficial bacteria, including Azospirillum and Nitrospirillum. Furthermore, the conducted correlation analysis shed light on microbial interrelationships within the rhizosphere, elucidating potential co-associations and antagonisms. Taken together, the isolated A. pullulans AK10 identified in this study serves as a potential biostimulant, enhancing the drought tolerance in A. koreana through beneficial alterations in the rhizosphere microbiome. This approach presents a promising strategy for the conservation of this endangered species.
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Affiliation(s)
- Mohamed Mannaa
- Department of Integrated Biological Science, Pusan National University, Busan 46241, Republic of Korea; (M.M.); (G.H.); (H.J.)
- Department of Plant Pathology, Faculty of Agriculture, Cairo University, Giza 12613, Egypt
| | - Gil Han
- Department of Integrated Biological Science, Pusan National University, Busan 46241, Republic of Korea; (M.M.); (G.H.); (H.J.)
| | - Hyejung Jung
- Department of Integrated Biological Science, Pusan National University, Busan 46241, Republic of Korea; (M.M.); (G.H.); (H.J.)
| | - Jungwook Park
- Biotechnology Research Division, National Institute of Fisheries Science, Busan 46083, Republic of Korea;
| | - Jin-Cheol Kim
- Division of Applied Bioscience and Biotechnology, Chonnam National University, Gwangju 61186, Republic of Korea; (J.-C.K.); (A.R.P.)
| | - Ae Ran Park
- Division of Applied Bioscience and Biotechnology, Chonnam National University, Gwangju 61186, Republic of Korea; (J.-C.K.); (A.R.P.)
| | - Young-Su Seo
- Department of Integrated Biological Science, Pusan National University, Busan 46241, Republic of Korea; (M.M.); (G.H.); (H.J.)
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13
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Abstract
Hypersaline waters and glacial ice are inhospitable environments that have low water activity and high concentrations of osmolytes. They are inhabited by diverse microbial communities, of which extremotolerant and extremophilic fungi are essential components. Some fungi are specialized in only one of these two environments and can thrive in conditions that are lethal to most other life-forms. Others are generalists, highly adaptable species that occur in both environments and tolerate a wide range of extremes. Both groups efficiently balance cellular osmotic pressure and ion concentration, stabilize cell membranes, remodel cell walls, and neutralize intracellular oxidative stress. Some species use unusual reproductive strategies. Further investigation of these adaptations with new methods and carefully designed experiments under ecologically relevant conditions will help predict the role of fungi in hypersaline and glacial environments affected by climate change, decipher their stress resistance mechanisms and exploit their biotechnological potential.
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Affiliation(s)
- Cene Gostinčar
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia; ,
| | - Nina Gunde-Cimerman
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia; ,
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14
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Poohphajai F, Myronycheva O, Karlsson O, Belt T, Rautkari L, Sandak J, Gubenšek A, Zalar P, Gunde-Cimerman N, Sandak A. Fungal colonisation on wood surfaces weathered at diverse climatic conditions. Heliyon 2023; 9:e17355. [PMID: 37441395 PMCID: PMC10333622 DOI: 10.1016/j.heliyon.2023.e17355] [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: 05/29/2023] [Revised: 06/13/2023] [Accepted: 06/14/2023] [Indexed: 07/15/2023] Open
Abstract
Natural weathering test at two different European climatic zones were conducted to investigate simultaneously both, the fungal colonisation and weathering process of Scots pine wood (Pinus sylvestris L.). The hypothesis was that the wood performing differently in various climate conditions might affect fungal infestation. The colour changes, wettability, and glossiness were measured as indicators of weathering progress of wood together with an assessment of fungal diversity. Different intensities in weathering, occupancy, and colonisation of fungi on wooden surface were detected. A higher number of fungal species was found on wood exposed to the warm temperate climates compared to subarctic or boreal climates. The dominant fungal species in both locations were from the genera Cladosporium and Aureobasidium.
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Affiliation(s)
- Faksawat Poohphajai
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, 00076, Aalto, Finland
- InnoRenew CoE, Livade 6a, 6310, Izola, Slovenia
| | - Olena Myronycheva
- Luleå University of Technology, Wood Science and Engineering, Forskargatan 1, 931 87, Skellefteå, Sweden
| | - Olov Karlsson
- Luleå University of Technology, Wood Science and Engineering, Forskargatan 1, 931 87, Skellefteå, Sweden
| | - Tiina Belt
- Production Systems, Natural Resources Institute Finland (Luke), Tietotie 2, 02150, Espoo, Finland
| | - Lauri Rautkari
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, 00076, Aalto, Finland
| | - Jakub Sandak
- InnoRenew CoE, Livade 6a, 6310, Izola, Slovenia
- Andrej Marušič Institute, University of Primorska, Titov trg 4, 6000, Koper, Slovenia
| | | | - Polona Zalar
- University of Ljubljana, Biotechnical Faculty, Department of Biology, Večna pot 111, SI-1000, Ljubljana, Slovenia
| | - Nina Gunde-Cimerman
- University of Ljubljana, Biotechnical Faculty, Department of Biology, Večna pot 111, SI-1000, Ljubljana, Slovenia
| | - Anna Sandak
- InnoRenew CoE, Livade 6a, 6310, Izola, Slovenia
- Andrej Marušič Institute, University of Primorska, Titov trg 4, 6000, Koper, Slovenia
- Faculty of Mathematics, Natural Sciences and Information Technologies, University of Primorska, Glagoljaška 8, 6000, Koper, Slovenia
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15
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Parra M, Libkind D, Hittinger CT, Álvarez L, Bellora N. Assembly and comparative genome analysis of a Patagonian Aureobasidium pullulans isolate reveals unexpected intraspecific variation. Yeast 2023. [PMID: 37114349 DOI: 10.1002/yea.3853] [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: 11/09/2022] [Revised: 03/27/2023] [Accepted: 04/14/2023] [Indexed: 04/29/2023] Open
Abstract
Aureobasidium pullulans is a yeast-like fungus with remarkable phenotypic plasticity widely studied for its importance for the pharmaceutical and food industries. So far, genomic studies with strains from all over the world suggest they constitute a genetically unstructured population, with no association by habitat. However, the mechanisms by which this genome supports so many phenotypic permutations are still poorly understood. Recent works have shown the importance of sequencing yeast genomes from extreme environments to increase the repertoire of phenotypic diversity of unconventional yeasts. In this study, we present the genomic draft of A. pullulans strain from a Patagonian yeast diversity hotspot, re-evaluate its taxonomic classification based on taxogenomic approaches, and annotate its genome with high-depth transcriptomic data. Our analysis suggests this isolate could be considered a novel variant at an early stage of the speciation process. The discovery of divergent strains in a genomically homogeneous group, such as A. pullulans, can be valuable in understanding the evolution of the species. The identification and characterization of new variants will not only allow finding unique traits of biotechnological importance, but also optimize the choice of strains whose phenotypes will be characterized, providing new elements to explore questions about plasticity and adaptation.
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Affiliation(s)
- Micaela Parra
- Laboratorio de Genómica Computacional, Instituto de Tecnologías Nucleares para la Salud (INTECNUS), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Carlos de Bariloche, Argentina
| | - Diego Libkind
- Centro de Referencia en Levaduras y Tecnología Cervecera (CRELTEC), Instituto Andino Patagónico de Tecnologías Biológicas y Geoambientales (IPATEC), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional del Comahue, San Carlos de Bariloche, Argentina
| | - Chris Todd Hittinger
- Laboratory of Genetics, Center for Genomic Science Innovation, DOE Great Lakes Bioenergy Research Center, Wisconsin Energy Institute, J. F. Crow Institute for the Study of Evolution, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Lucía Álvarez
- Centro de Referencia en Levaduras y Tecnología Cervecera (CRELTEC), Instituto Andino Patagónico de Tecnologías Biológicas y Geoambientales (IPATEC), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional del Comahue, San Carlos de Bariloche, Argentina
| | - Nicolás Bellora
- Laboratorio de Genómica Computacional, Instituto de Tecnologías Nucleares para la Salud (INTECNUS), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Carlos de Bariloche, Argentina
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16
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Wu F, Feng Z, Wang M, Wang Q. Proposal of Four New Aureobasidium Species for Exopolysaccharide Production. J Fungi (Basel) 2023; 9:jof9040447. [PMID: 37108901 PMCID: PMC10145156 DOI: 10.3390/jof9040447] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/02/2023] [Accepted: 04/03/2023] [Indexed: 04/08/2023] Open
Abstract
In this study, 99 strains of Aureobasidium species were isolated from various samples collected from different locations in China, among which 14 isolates showed different morphological characteristics to other strains identified as known Aureobasidium species. Based on morphological characteristics, those 14 strains were classified into four groups, represented by stains of KCL139, MDSC−10, XZY411−4, and MQL9−100, respectively. Molecular analysis of the internal transcriptional spacer (ITS) and part of the large ribosome subunit (D1/D2 domains) indicated that those four groups represent four new species in the Aureobasidium. Therefore, the names Aureobasidium insectorum sp. nov., A. planticola sp. nov., A. motuoense sp. nov., and A. intercalariosporum sp. nov. are proposed for KCL139, MDSC−10, XZY411−4, and MQL9−100, respectively. We also found that there were differences in the yield of exopolysaccharides (EPS) among and within species, indicating strain-related exopolysaccharide-producing diversity.
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Affiliation(s)
- Feng Wu
- School of Life Sciences, Institute of Life Sciences and Green Development, Hebei University, Baoding 071002, China
| | - Zixuan Feng
- School of Life Sciences, Institute of Life Sciences and Green Development, Hebei University, Baoding 071002, China
| | - Manman Wang
- School of Life Sciences, Institute of Life Sciences and Green Development, Hebei University, Baoding 071002, China
| | - Qiming Wang
- School of Life Sciences, Institute of Life Sciences and Green Development, Hebei University, Baoding 071002, China
- Engineering Laboratory of Microbial Breeding and Preservation of Hebei Province, Hebei University, Baoding 071002, China
- Key Laboratory of Microbial Diversity Research and Application of Hebei Province, Hebei University, Baoding 071002, China
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17
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Yeh YH, Kirschner R. The diversity of cultivable endophytic fungi of the sand coast plant Ipomoeapes-caprae in Taiwan. Biodivers Data J 2023; 11:e98878. [PMID: 38327354 PMCID: PMC10848570 DOI: 10.3897/bdj.11.e98878] [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: 12/15/2022] [Accepted: 02/03/2023] [Indexed: 02/19/2023] Open
Abstract
Background Ipomoeapes-caprae is a plant of sand coasts and it can tolerate stresses, such as high salinity, strong wind and sand movements and lack of nutrients. It plays an important role in coast protection and preventing erosion. Fungal endophytes show high biodiversity and have a strong influence on the survival of plants under different stress factors. Although this plant is important for sand coast ecosystems, little is known about the associated fungi. In this study, we isolated and identified endophytic fungi of Ipomoeapes-caprae, a dominant plant along the shore of Taiwan. The dataset contains 896 records, which correspond to 177 species. The geographical scope of the dataset covers the northern subtropical area of the main island of Taiwan, with its sand coasts in New Taipei, Taoyuan, Hsinchu and Taichung and two botanical gardens in Taipei and Taichung. The detailed original data of fungal diversity are rarely publicly shared under strictly formalised and, thus, reusable standards. As an example for such an approach, the complete occurrence dataset was made available in the Darwin Core Archive format via the Global Biodiversity Information Facility (GBIF) under Version 1.13, Taiwan Biodiversity Information Facility (TaiBIF) https://doi.org/10.15468/9h9rcg. In this first data paper on endophytic fungi, the scientific name and associated DNA sequence in the dataset were directly linked to other free online resource (Index Fungorum, GenBank), which shows the potential of GBIF for linking together different online data repositories. New information We describe a dataset, in which the diversity of endophytic fungi of the sand coast plant Ipomoeapes-caprae in Taiwan was investigated.
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Affiliation(s)
- Yu-Hung Yeh
- National Taiwan University, Taipei, TaiwanNational Taiwan UniversityTaipeiTaiwan
| | - Roland Kirschner
- National Taiwan University, Taipei, TaiwanNational Taiwan UniversityTaipeiTaiwan
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18
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Epiphytic and Endophytic Fungi Colonizing Seeds of Two Poaceae Weed Species and Fusarium spp. Seed Degradation Potential In Vitro. Microorganisms 2023; 11:microorganisms11010184. [PMID: 36677476 PMCID: PMC9863844 DOI: 10.3390/microorganisms11010184] [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: 11/28/2022] [Revised: 01/09/2023] [Accepted: 01/09/2023] [Indexed: 01/15/2023] Open
Abstract
Fungi colonizing the surface and endosphere of two widespread Poaceae weed species, Avena fatua and Echinochloa crus-galli, were isolated to compare the taxonomic composition between the plant species, location, and year of the seed collection. The seed-degrading potential of Fusarium isolated from the seeds was tested by inoculating seeds of E. crus-galli with spore suspension. Molecular identification of epiphytic and endophytic fungal genera was performed by sequencing the ITS region of rDNA. Endophytes comprised of significantly lower fungal richness compared to epiphytes. A significant taxonomic overlap was observed between the endosphere and seed surface. The most abundant genera were Alternaria, Fusarium, Cladosporium, and Sarocladium. Analysis of similarities and hierarchical clustering showed that microbial communities were more dissimilar between the two plant species than between the years. Fusarium isolates with a high potential to infect and degrade E. crus-galli seeds in laboratory conditions belong to F. sporotrichioides and F. culmorum.
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19
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Bosetti D, Spoerl D, Riat A, De Vito C, Masouridi-Levrat S, Chalandon Y, Neofytos D. Atypical pulmonary phaeohyphomycosis due to Aureobasidium spp. - case report and brief literature review. Swiss Med Wkly 2022; 152:40011. [PMID: 36509420 DOI: 10.57187/smw.2022.40011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
We report on a case of probable invasive Auerobasidium spp. pulmonary infection in a patient with myelodysplastic syndrome. The patient was successfully treated with liposomal amphotericin B monotherapy, with transition to orally administered isavuconazole. This case shows an atypical initial radiological presentation with diffuse ground-glass opacities, as previously demonstrated in cases of Aureobasidium spp. hypersensitivity pneumonitis. Moreover this case further highlights the difficulties associated with the diagnosis and complexity in the management of Aureobasidium spp. infections.
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Affiliation(s)
- Davide Bosetti
- Division of Infectious Diseases, University Hospital of Geneva, Switzerland
| | - David Spoerl
- Division of Immunology and Allergy, Department of Medicine, University Hospital and Faculty of Medicine, Geneva, Switzerland. Division of Laboratory Medicine, Department of Diagnostic, Geneva University Hospitals, Geneva, Switzerland
| | - Arnaud Riat
- Diagnostic Department, Laboratory of Bacteriology, University Hospital of Geneva, Switzerland
| | - Claudio De Vito
- Division of Clinical Pathology, University Hospital of Geneva, Switzerland
| | - Stavroula Masouridi-Levrat
- Division of Haematology, Bone Marrow Transplant Unit, University Hospital of Geneva and faculty of Medicine, University of Geneva, Switzerland
| | - Yves Chalandon
- Division of Haematology, Bone Marrow Transplant Unit, University Hospital of Geneva and faculty of Medicine, University of Geneva, Switzerland
| | - Dionysios Neofytos
- Division of Infectious Diseases, University Hospital of Geneva, Switzerland
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20
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Production of liamocins by Aureobasidium spp. with potential applications. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2022.108687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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21
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Černoša A, Gostinčar C, Lavrin T, Kostanjšek R, Lenassi M, Gunde-Cimerman N. Isolation and characterization of extracellular vesicles from biotechnologically important fungus Aureobasidium pullulans. Fungal Biol Biotechnol 2022; 9:16. [PMID: 36320088 PMCID: PMC9628041 DOI: 10.1186/s40694-022-00146-7] [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: 07/22/2022] [Accepted: 10/07/2022] [Indexed: 11/05/2022] Open
Abstract
Extracellular vesicles (EVs) are increasingly recognized as an important mechanism for cell-cell interactions. Their role in fungi is still poorly understood and they have been isolated from only a handful of species. Here, we isolated and characterized EVs from Aureobasidium pullulans, a biotechnologically important black yeast-like fungus that is increasingly used for biocontrol of phytopathogenic fungi and bacteria. After optimization of the isolation protocol, characterization of EVs from A. pullulans by transmission electron microscopy (TEM) revealed a typical cup-shaped morphology and different subpopulations of EVs. These results were confirmed by nanoparticle tracking analysis (NTA), which revealed that A. pullulans produced 6.1 × 108 nanoparticles per milliliter of culture medium. Proteomic analysis of EVs detected 642 proteins. A small fraction of them had signal peptides for secretion and transmembrane domains. Proteins characteristic of different synthesis pathways were found, suggesting that EVs are synthesized by multiple pathways in A. pullulans. Enrichment analysis using Gene Ontology showed that most of the proteins found in the EVs were associated with primary metabolism. When sequencing the small RNA fraction of A. pullulans EVs, we found two hypothetical novel mil-RNAs. Finally, we tested the biocontrol potential of EVs from A. pullulans. The EVs did not inhibit the germination of spores of three important phytopathogenic fungi-Botrytis cinerea, Colletotrichum acutatum, and Penicillium expansum. However, exposure of grown cultures of C. acutatum and P. expansum to A. pullulans EVs resulted in visible changes in morphology of colonies. These preliminary results suggest that EVs may be part of the antagonistic activity of A. pullulans, which is so far only partially understood. Thus, the first isolation and characterization of EVs from A. pullulans provides a starting point for further studies of EVs in the biotechnologically important traits of the biocontrol black fungus A. pullulans in particular and in the biological role of fungal EVs in general.
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Affiliation(s)
- Anja Černoša
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia
| | - Cene Gostinčar
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia
| | - Teja Lavrin
- Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Rok Kostanjšek
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia
| | - Metka Lenassi
- Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Nina Gunde-Cimerman
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia
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22
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Campana R, Fanelli F, Sisti M. Role of melanin in the black yeast fungi Aureobasidium pullulans and Zalaria obscura in promoting tolerance to environmental stresses and to antimicrobial compounds. Fungal Biol 2022; 126:817-825. [PMID: 36517149 DOI: 10.1016/j.funbio.2022.11.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 10/04/2022] [Accepted: 11/08/2022] [Indexed: 11/15/2022]
Abstract
The role of melanin in Aureobasidium pullulans ATCC 15233 and Zalaria obscura LS31012019, under simulated osmotic, oxidative, and high temperature stress conditions, on the susceptibility to essential oils (EOs) or antifungals and on the resistance to UV-C radiation was investigated. 93.6% of melanized A. pullulans and 92% of Z. obscura survived to 40 °C for 1 h compared to 77% and 76% of the non-melanized ones, while both yeasts tolerated a high concentration of NaCl (up to 30%) and H2O2 (up to 400 mM) regardless of melanin production. Higher EOs antifungal efficacy was observed in non-melanized cells (growth inhibition zone >30 mm) compared to the melanized ones (25 mm). Similarly, the lowest Minimum Inhibitory Concentrations (MIC) and Minimum Fungicidal Concentration (MFC) values were evidenced for Fluconazole, Clotrimazole, Bifonazole and Amphotericin in the non-melanized fungi. Increasing UV-C intensity (up to 2004.5 J/m2) caused total death in the non-melanized strains compared to about 30% growth reduction in the melanized ones. The results of this investigation, the first focused on the biological role of melanin in "black-fungi", are novel and encourage a better understanding of the biochemical features of melanin in the environmental adaptive ability of the new species Z. obscura.
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Affiliation(s)
- Raffaella Campana
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy.
| | - Fabiana Fanelli
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Maurizio Sisti
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
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23
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Hladnik M, Unković N, Janakiev T, Grbić ML, Arbeiter AB, Stanković S, Janaćković P, Gavrilović M, Rančić D, Bandelj D, Dimkić I. An Insight into an Olive Scab on the "Istrska Belica" Variety: Host-Pathogen Interactions and Phyllosphere Mycobiome. MICROBIAL ECOLOGY 2022:10.1007/s00248-022-02131-4. [PMID: 36307735 DOI: 10.1007/s00248-022-02131-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 10/23/2022] [Indexed: 06/16/2023]
Abstract
The olive tree is one of the most important agricultural plants, affected by several pests and diseases that cause a severe decline in health status leading to crop losses. Olive leaf spot disease caused by the fungus Venturia oleaginea can result in complete tree defoliation and consequently lower yield. The aim of the study was to obtain new knowledge related to plant-pathogen interaction, reveal mechanisms of plant defense against the pathogen, and characterize fungal phyllosphere communities on infected and symptomless leaves that could contribute to the development of new plant breeding strategies and identification of novel biocontrol agents. The highly susceptible olive variety "Istrska Belica"' was selected for a detailed evaluation. Microscopy analyses led to the observation of raphides in the mesophyll and parenchyma cells of infected leaves and gave new insight into the complex V. oleaginea pathogenesis. Culturable and total phyllosphere mycobiota, obtained via metabarcoding approach, highlighted Didymella, Aureobasidium, Cladosporium, and Alternaria species as overlapping between infected and symptomless leaves. Only Venturia and Erythrobasidium in infected and Cladosporium in symptomless samples with higher abundance showed statistically significant differences. Based on the ecological role of identified taxa, it can be suggested that Cladosporium species might have potential antagonistic effects on V. oleaginea.
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Affiliation(s)
- Matjaž Hladnik
- Faculty of Mathematics, Natural Sciences and Information Technologies (FAMNIT), University of Primorska, Glagoljaška 8, Sl-6000, Koper, Slovenia
| | - Nikola Unković
- Faculty of Biology, University of Belgrade, Studentski Trg 16, 11158, Belgrade, Serbia
| | - Tamara Janakiev
- Faculty of Biology, University of Belgrade, Studentski Trg 16, 11158, Belgrade, Serbia
| | | | - Alenka Baruca Arbeiter
- Faculty of Mathematics, Natural Sciences and Information Technologies (FAMNIT), University of Primorska, Glagoljaška 8, Sl-6000, Koper, Slovenia
| | - Slaviša Stanković
- Faculty of Biology, University of Belgrade, Studentski Trg 16, 11158, Belgrade, Serbia
| | - Peđa Janaćković
- Faculty of Biology, University of Belgrade, Studentski Trg 16, 11158, Belgrade, Serbia
| | - Milan Gavrilović
- Faculty of Biology, University of Belgrade, Studentski Trg 16, 11158, Belgrade, Serbia
| | - Dragana Rančić
- Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080, Belgrade, Zemun, Serbia
| | - Dunja Bandelj
- Faculty of Mathematics, Natural Sciences and Information Technologies (FAMNIT), University of Primorska, Glagoljaška 8, Sl-6000, Koper, Slovenia
| | - Ivica Dimkić
- Faculty of Biology, University of Belgrade, Studentski Trg 16, 11158, Belgrade, Serbia.
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Cai S, Snyder AB. Genomic characterization of polyextremotolerant black yeasts isolated from food and food production environments. FRONTIERS IN FUNGAL BIOLOGY 2022; 3:928622. [PMID: 37746166 PMCID: PMC10512282 DOI: 10.3389/ffunb.2022.928622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 07/04/2022] [Indexed: 09/26/2023]
Abstract
Black yeasts have been isolated from acidic, low water activity, and thermally processed foods as well as from surfaces in food manufacturing plants. The genomic basis for their relative tolerance to food-relevant environmental stresses has not been well defined. In this study, we performed whole genome sequencing (WGS) on seven black yeast strains including Aureobasidium (n=5) and Exophiala (n=2) which were isolated from food or food production environments. These strains were previously characterized for their tolerance to heat, hyperosmotic pressure, high pressure processing, hypochlorite sanitizers, and ultraviolet light. Based on the WGS data, three of the strains previously identified as A. pullulans were reassigned as A. melanogenum. Both haploid and diploid A. melanogenum strains were identified in this collection. Single-locus phylogenies based on beta tubulin, RNA polymerase II, or translation elongation factor protein sequences were compared to the phylogeny produced through SNP analysis, revealing that duplication of the fungal genome in diploid strains complicates the use of single-locus phylogenetics. There was not a strong association between phylogeny and either environmental source or stress tolerance phenotype, nor were trends in the copy numbers of stress-related genes associated with extremotolerance within this collection. While there were obvious differences between the genera, the heterogenous distribution of stress tolerance phenotypes and genotypes suggests that food-relevant black yeasts may be ubiquitous rather than specialists associated with particular ecological niches. However, further evaluation of additional strains and the potential impact of gene sequence modification is necessary to confirm these findings.
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Affiliation(s)
| | - Abigail B. Snyder
- Department of Food Science, Cornell University, Ithaca, NY, United States
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From Glaciers to Refrigerators: the Population Genomics and Biocontrol Potential of the Black Yeast Aureobasidium subglaciale. Microbiol Spectr 2022; 10:e0145522. [PMID: 35880866 PMCID: PMC9430960 DOI: 10.1128/spectrum.01455-22] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Apples are affected by numerous fungi known as storage rots, which cause significant losses before and after harvest. Concerns about increasing antimicrobial resistance, bans on various fungicides, and changing consumer preferences are motivating the search for safer means to prevent fruit rot. The use of antagonistic microbes has been shown to be an efficient and environmentally friendly alternative to conventional phytopharmaceuticals. Here, we investigate the potential of Aureobasidium subglaciale for postharvest rot control. We tested the antagonistic activity of 9 strains of A. subglaciale and 7 closely related strains against relevant phytopathogenic fungi under conditions simulating low-temperature storage: Botrytis cinerea, Penicillium expansum, and Colletotrichum acutatum. We also investigated a selection of phenotypic traits of all strains and sequenced their whole genomes. The tested strains significantly reduced postharvest rot of apples at low temperatures caused by B. cinerea, C. acutatum (over 60%), and P. expansum (about 40%). Several phenotypic traits were observed that may contribute to this biocontrol capacity: growth at low temperatures, tolerance to high temperatures and elevated solute concentrations, and strong production of several extracellular enzymes and siderophores. Population genomics revealed that 7 of the 15 strains originally identified as A. subglaciale most likely belong to other, possibly undescribed species of the same genus. In addition, the population structure and linkage disequilibrium of the species suggest that A. subglaciale is strictly clonal and therefore particularly well suited for use in biocontrol. Overall, these data suggest substantial biological control potential for A. subglaciale, which represents another promising biological agent for disease control in fresh fruit. IMPORTANCE After harvest, fruits are often stored at low temperatures to prolong their life. However, despite the low temperatures, much of the fruit is lost to rot caused by a variety of fungi, resulting in major economic losses and food safety risks. An increasingly important environmentally friendly alternative to conventional methods of mitigating the effects of plant diseases is the use of microorganisms that act similarly to probiotics—occupying the available space, producing antimicrobial compounds, and consuming the nutrients needed by the rot-causing species. To find a new microorganism for biological control that is particularly suitable for cold storage of fruit, we tested different isolates of the cold-loving yeast Aureobasidium subglaciale and studied their phenotypic characteristics and genomes. We demonstrated that A. subglaciale can significantly reduce rotting of apples caused by three rot-causing molds at low temperatures and thus has great potential for preventing fruit rot during cold storage.
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Becktell MC, Tucker S, Ozsoy AZ, Connor M. Identification of fungi found on desiccated human remains in an arid outdoor environment. J Forensic Sci 2022; 67:2048-2054. [PMID: 35593446 DOI: 10.1111/1556-4029.15066] [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: 01/20/2022] [Revised: 04/08/2022] [Accepted: 05/10/2022] [Indexed: 11/29/2022]
Abstract
Three fungi not previously reported on desiccated human remains were identified on cadavers at the Forensic Investigation Research Station (FIRS) in Whitewater, Colorado. The location of the FIRS provides the unique opportunity to observe the stages of decomposition in a high desert environment. The two cadavers used in the study were in the late stages of decomposition (PMI of approximately 1520 and 1820 days) to the point of desiccation and had developed an extensive black crust on the skin that remained. Skin samples of the two cadavers were taken and plated onto potato dextrose agar to determine whether fungi were present on the desiccated tissues. Three different fungi consistently dominated cultures grown from numerous samples taken from each cadaver. Based on morphological observations, nuclear rDNA sequence data, and phylogenetic analyses, two fungi were identified to species (Aureobasidium melanogenum and Didymella glomerata) and one fungus was identified to the genus level (Alternaria). These results will contribute to the understanding of the role that fungi might play in late-stage decomposition and the extended postmortem period.
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Affiliation(s)
- Margot C Becktell
- Department of Biological Sciences Colorado Mesa University, Grand Junction, Colorado, USA
| | - Selina Tucker
- University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - A Zeynep Ozsoy
- Department of Biological Sciences Colorado Mesa University, Grand Junction, Colorado, USA
| | - Melissa Connor
- Department of Social and Behavioral Sciences, Forensic Investigation Research Station, Colorado Mesa University, Grand Junction, Colorado, USA
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Jiménez-Gómez I, Valdés-Muñoz G, Moreno-Ulloa A, Pérez-Llano Y, Moreno-Perlín T, Silva-Jiménez H, Barreto-Curiel F, Sánchez-Carbente MDR, Folch-Mallol JL, Gunde-Cimerman N, Lago-Lestón A, Batista-García RA. Surviving in the Brine: A Multi-Omics Approach for Understanding the Physiology of the Halophile Fungus Aspergillus sydowii at Saturated NaCl Concentration. Front Microbiol 2022; 13:840408. [PMID: 35586858 PMCID: PMC9108488 DOI: 10.3389/fmicb.2022.840408] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 04/07/2022] [Indexed: 11/30/2022] Open
Abstract
Although various studies have investigated osmoadaptations of halophilic fungi to saline conditions, only few analyzed the fungal mechanisms occurring at saturated NaCl concentrations. Halophilic Aspergillus sydowii is a model organism for the study of molecular adaptations of filamentous fungi to hyperosmolarity. For the first time a multi-omics approach (i.e., transcriptomics and metabolomics) was used to compare A. sydowii at saturated concentration (5.13 M NaCl) to optimal salinity (1 M NaCl). Analysis revealed 1,842 genes differentially expressed of which 704 were overexpressed. Most differentially expressed genes were involved in metabolism and signal transduction. A gene ontology multi-scale network showed that ATP binding constituted the main network node with direct interactions to phosphorelay signal transduction, polysaccharide metabolism, and transferase activity. Free amino acids significantly decreased and amino acid metabolism was reprogrammed at 5.13 M NaCl. mRNA transcriptional analysis revealed upregulation of genes involved in methionine and cysteine biosynthesis at extreme water deprivation by NaCl. No modifications of membrane fatty acid composition occurred. Upregulated genes were involved in high-osmolarity glycerol signal transduction pathways, biosynthesis of β-1,3-glucans, and cross-membrane ion transporters. Downregulated genes were related to the synthesis of chitin, mannose, cell wall proteins, starvation, pheromone synthesis, and cell cycle. Non-coding RNAs represented the 20% of the total transcripts with 7% classified as long non-coding RNAs (lncRNAs). The 42% and 69% of the total lncRNAs and RNAs encoding transcription factors, respectively, were differentially expressed. A network analysis showed that differentially expressed lncRNAs and RNAs coding transcriptional factors were mainly related to the regulation of metabolic processes, protein phosphorylation, protein kinase activity, and plasma membrane composition. Metabolomic analyses revealed more complex and unknown metabolites at saturated NaCl concentration than at optimal salinity. This study is the first attempt to unravel the molecular ecology of an ascomycetous fungus at extreme water deprivation by NaCl (5.13 M). This work also represents a pioneer study to investigate the importance of lncRNAs and transcriptional factors in the transcriptomic response to high NaCl stress in halophilic fungi.
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Affiliation(s)
- Irina Jiménez-Gómez
- Centro de Investigación en Dinámica Celular, Instituto de Investigación en Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos, Cuernavaca, Mexico
| | - Gisell Valdés-Muñoz
- Centro de Investigación en Dinámica Celular, Instituto de Investigación en Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos, Cuernavaca, Mexico
| | - Aldo Moreno-Ulloa
- Departamento de Innovación Biomédica, Centro de Investigación Científica y de Educación Superior de Ensenada, Ensenada, Mexico
| | - Yordanis Pérez-Llano
- Centro de Investigación en Dinámica Celular, Instituto de Investigación en Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos, Cuernavaca, Mexico
- Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Cuernavaca, Mexico
| | - Tonatiuh Moreno-Perlín
- Centro de Investigación en Dinámica Celular, Instituto de Investigación en Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos, Cuernavaca, Mexico
| | - Hortencia Silva-Jiménez
- Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Ensenada, Mexico
| | | | | | - Jorge Luis Folch-Mallol
- Centro de Investigación en Biotecnología, Universidad Autónoma del Estado de Morelos, Cuernavaca, Mexico
| | - Nina Gunde-Cimerman
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Asunción Lago-Lestón
- Departamento de Innovación Biomédica, Centro de Investigación Científica y de Educación Superior de Ensenada, Ensenada, Mexico
| | - Ramón Alberto Batista-García
- Centro de Investigación en Dinámica Celular, Instituto de Investigación en Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos, Cuernavaca, Mexico
- *Correspondence: Ramón Alberto Batista-García, ;
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Yamamoto S, Ikeda M, Ohama Y, Sunouchi T, Hoshino Y, Ito H, Yamashita M, Kanno Y, Okamoto K, Yamagoe S, Miyazaki Y, Okugawa S, Fujishiro J, Moriya K. Aureobasidium melanigenum catheter-related bloodstream infection: a case report. BMC Infect Dis 2022; 22:335. [PMID: 35382751 PMCID: PMC8981616 DOI: 10.1186/s12879-022-07310-9] [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: 03/23/2021] [Accepted: 03/24/2022] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Aureobasidium melanigenum is a ubiquitous dematiaceous fungus that rarely causes invasive human infections. Here, we present a case of Aureobasidium melanigenum bloodstream infection in a 20-year-old man with long-term catheter use. CASE PRESENTATION A 20-year-old man receiving home care with severe disabilities due to cerebral palsy and short bowel syndrome, resulting in long-term central venous catheter use, was referred to our hospital with a fever. After the detection of yeast-like cells in blood cultures on day 3, antifungal therapy was initiated. Two identification tests performed at a clinical microbiological laboratory showed different identification results: Aureobasidium pullulans from matrix-assisted laser desorption/ionization time-of-flight mass spectrometry, and Cryptococcus albidus from a VITEK2 system. Therefore, we changed the antifungal drug to liposomal amphotericin B. The fungus was identified as A. melanigenum by DNA sequence-based analysis. The patient recovered with antifungal therapy and long-term catheter removal. CONCLUSION It is difficult to correctly identify A. melanigenum by routine microbiological testing. Clinicians must pay attention to the process of identification of yeast-like cells and retain A. melanigenum in cases of refractory fungal infection.
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Affiliation(s)
- Shinya Yamamoto
- Department of Infectious Disease, The University of Tokyo Hospital, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Mahoko Ikeda
- Department of Infectious Disease, The University of Tokyo Hospital, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan. .,Department of Infection Control and Prevention, The University of Tokyo Hospital, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.
| | - Yuki Ohama
- Department of Infection Control and Prevention, The University of Tokyo Hospital, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Tomohiro Sunouchi
- Department of Pediatric Surgery, The University of Tokyo Hospital, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Yasutaka Hoshino
- Department of Chemotherapy and Mycoses, National Institute of Infectious Diseases, Toyama 1-23-1, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Hiroshi Ito
- Department of Infectious Disease, The University of Tokyo Hospital, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Marie Yamashita
- Department of Infectious Disease, The University of Tokyo Hospital, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Yoshiaki Kanno
- Department of Infectious Disease, The University of Tokyo Hospital, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Koh Okamoto
- Department of Infectious Disease, The University of Tokyo Hospital, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Satoshi Yamagoe
- Department of Chemotherapy and Mycoses, National Institute of Infectious Diseases, Toyama 1-23-1, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Yoshitsugu Miyazaki
- Department of Chemotherapy and Mycoses, National Institute of Infectious Diseases, Toyama 1-23-1, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Shu Okugawa
- Department of Infectious Disease, The University of Tokyo Hospital, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Jun Fujishiro
- Department of Pediatric Surgery, The University of Tokyo Hospital, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Kyoji Moriya
- Department of Infectious Disease, The University of Tokyo Hospital, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.,Department of Infection Control and Prevention, The University of Tokyo Hospital, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
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Cai S, Snyder AB. Thermoresistance in Black Yeasts Is Associated with Halosensitivity and High Pressure Processing Tolerance but Not with UV Tolerance or Sanitizer Tolerance. J Food Prot 2022; 85:203-212. [PMID: 34614188 DOI: 10.4315/jfp-21-314] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Accepted: 10/01/2021] [Indexed: 11/11/2022]
Abstract
ABSTRACT Black yeasts can survive extreme conditions in food production because of their polyextremotolerant character. However, significant strain-to-strain variation in black yeast thermoresistance has been observed. In this study, we assessed the variability in tolerance to nonthermal interventions among a collection of food-related black yeast strains. Variation in tolerance to UV light treatment, high pressure processing (HPP), sanitizers, and osmotic pressure was observed within each species. The two strains previously shown to possess high thermotolerance, Exophiala phaeomuriformis FSL-E2-0572 and Exophiala dermatitidis YB-734, were also the most HPP tolerant but were the least halotolerant. Meanwhile, Aureobasidium pullulans FSL-E2-0290 was the most UV and sanitizer tolerant but had been shown to have relatively low thermoresistance. Fisher's exact tests showed that thermoresistance in black yeasts was associated with HPP tolerance and inversely with halotolerance, but no association was found with UV tolerance or sanitizer tolerance. Collectively, the relative stress tolerance among strains varied across interventions. Given this variation, different food products are susceptible to black yeast spoilage. In addition, different strains should be selected in challenge studies specific to the intervention. HIGHLIGHTS
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Affiliation(s)
- Shiyu Cai
- Department of Food Science, Cornell University, Ithaca, New York 14853, USA
| | - Abigail B Snyder
- Department of Food Science, Cornell University, Ithaca, New York 14853, USA
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Xie Y, Fang L, Mao X, Wu J, Wang L, Wang H. First Report of Aureobasidium pullulans var. pullulans Causing Spot Blight of Pear (Pyrus pyrifolia) in Zhejiang Province of China. PLANT DISEASE 2022; 106:2259. [PMID: 35100838 DOI: 10.1094/pdis-10-21-2367-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Asian pear (Pyrus pyrifolia Nakai cv. cuiguan), is widely grown in Zhejiang province of China. In April 2019, symptoms consisting of small black, round leaf spots and blight flower petals were observed on over 30 % of 'Cuiguan' pear trees in an orchard (ca. 0.8 ha) near Cixi city, Zhejiang province, China. Initially, leaf spots were observed on leaf petioles, which, with time, enlarged and coalesced into necrotic streaks (1-2 cm) along the length of the petioles. Irregularly, reddish brown spots developed on flower petals, which hastened their senescence. Additional symptoms included round, black spots on leaves (2-3 mm in diameter) and necrosis of shoot tips. Symptomatic tissues from petals, petioles and leaves were plated onto potato dextrose agar (PDA). After five days of incubation at 26 °C, slimy fungal colonies (48×48 mm) with pinkish to orange-colored mycelia and with regular annulations were isolated from all tissues. After 10 days, cultured were shiny and dark brown in the center. The color of conidia ranged from hyaline to dark brown. Hyaline conidia were blastic, unicellular, ellipsoidal, smooth, with lengths that ranged from 11.03 to 27.14 (avg. 18.38) μm, and widths that ranged from 3.45 to 8.86 (avg. 6.04) μm (n = 50). Dark brown conidia were 1 to 2 celled, 10.89 to 26.03 (avg. 17.41) μm in length and 4.26 to 12.15 (avg. 6.94) μm in width (n = 50), and a slight septal constriction. Conidiogenous cells were clavate, hyaline, eseptate and top smoothly with 3-11 spores. Indistinct scars remained when the conidia dislodge from the conidiogenous cells. Single spore isolation was used to obtain pure cultures. Mycelia and conidia were scraped from cultures and DNA was extracted using Ezup Column Fungi Genomic DNA Purification Kit (Sangon Biotech). Amplified PCR products from the internal transcribed spacer (ITS) region ITS1F/ITS4 (White et al. 1990), the partial 28S rDNA (LSU) NL1/NL4 (Boekhout et al. 1995), the β-tubulin (TUB) gene Bt2a/Bt2b (Glass & Donaldson 1995) and the partial elongase gene (ELO) ELO2-F/ELO2-R (Zalar et al. 2008) were sequenced (Tsingke Biotechnology Co., Hangzhou, Zhejiang). A blast search (GenBank Accession No. MT107050, OK485685, OK631951, OK631950) showed 99% Aureobasidium pullulans reference isolate CBS584.75 and EXF-150, which was consistent with the morphological data (Cene et al. 2014). Three-yr-old seedlings from 'Cuiguan' pears were spray with conidial suspension (106 conidia/ml) on the both sides of leaves without wounding. In a greenhouse (26 °C, natural light), six inoculated plants and three noninoculated plants (sprayed with sterile distilled water) enclosed in plastic bags to maintain humidity for 72 h. At 5 days after inoculation, shoot tips blackened and began to wilt. At 15 days after inoculation, symptoms similar to those on the original sample developed on inoculated petioles and leaves, whereas the control plants remained healthy. No symptoms were observed on leaves that were mature at the time of inoculation. Aureobasidium pullulans var. pullulans was reisolated from all inoculated plant. Overall, this disease shortened the life of pear flowers and reduced fruit set. To our knowledge, A. pullulans var. pullulans has not previously been reported as a pathogen of P. pyrifolia.
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Affiliation(s)
- Yunye Xie
- Zhejiang Academy of Agricultural Sciences, 74561, Institute of Plant Protection and Microbiology, No. 198, Shiqiao Road, Hangzhou, China, 310021;
| | - Li Fang
- Zhejiang Academy of Agricultural Sciences, 74561, Institute of Plant Protection and Microbiology, Hangzhou, Zhejiang, China;
| | - Xueqin Mao
- Zhejiang Academy of Agricultural Sciences, 74561, Institute of Plant Protection and Microbiology, Hangzhou, Zhejiang, China;
| | - Ju Wu
- Zhejiang Academy of Agricultural Sciences, 74561, Institute of Plant Protection and Microbiology, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang Province, P.R. China, Hangzhou, Zhejiang, China, 310021;
| | - Lianping Wang
- Zhejiang Academy of Agricultural Sciences, 74561, Institute of Plant Protection and Microbiology, Hangzhou, Zhejiang, China;
| | - Hanrong Wang
- Zhejiang Academy of Agricultural Sciences, 74561, Institute of Plant Protection and Microbiology, Hangzhou, Zhejiang, China;
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Crous PW, Osieck ER, Jurjević Ž, Boers J, van Iperen AL, Starink-Willemse M, Dima B, Balashov S, Bulgakov TS, Johnston PR, Morozova OV, Pinruan U, Sommai S, Alvarado P, Decock CA, Lebel T, McMullan-Fisher S, Moreno G, Shivas RG, Zhao L, Abdollahzadeh J, Abrinbana M, Ageev DV, Akhmetova G, Alexandrova AV, Altés A, Amaral AGG, Angelini C, Antonín V, Arenas F, Asselman P, Badali F, Baghela A, Bañares A, Barreto RW, Baseia IG, Bellanger JM, Berraf-Tebbal A, Biketova AY, Bukharova NV, Burgess TI, Cabero J, Câmara MPS, Cano-Lira JF, Ceryngier P, Chávez R, Cowan DA, de Lima AF, Oliveira RL, Denman S, Dang QN, Dovana F, Duarte IG, Eichmeier A, Erhard A, Esteve-Raventós F, Fellin A, Ferisin G, Ferreira RJ, Ferrer A, Finy P, Gaya E, Geering ADW, Gil-Durán C, Glässnerová K, Glushakova AM, Gramaje D, Guard FE, Guarnizo AL, Haelewaters D, Halling RE, Hill R, Hirooka Y, Hubka V, Iliushin VA, Ivanova DD, Ivanushkina NE, Jangsantear P, Justo A, Kachalkin AV, Kato S, Khamsuntorn P, Kirtsideli IY, Knapp DG, Kochkina GA, Koukol O, Kovács GM, Kruse J, Kumar TKA, Kušan I, Læssøe T, Larsson E, Lebeuf R, Levicán G, Loizides M, Marinho P, Luangsa-Ard JJ, Lukina EG, Magaña-Dueñas V, Maggs-Kölling G, Malysheva EF, Malysheva VF, Martín B, Martín MP, Matočec N, McTaggart AR, Mehrabi-Koushki M, Mešić A, Miller AN, Mironova P, Moreau PA, Morte A, Müller K, Nagy LG, Nanu S, Navarro-Ródenas A, Nel WJ, Nguyen TH, Nóbrega TF, Noordeloos ME, Olariaga I, Overton BE, Ozerskaya SM, Palani P, Pancorbo F, Papp V, Pawłowska J, Pham TQ, Phosri C, Popov ES, Portugal A, Pošta A, Reschke K, Reul M, Ricci GM, Rodríguez A, Romanowski J, Ruchikachorn N, Saar I, Safi A, Sakolrak B, Salzmann F, Sandoval-Denis M, Sangwichein E, Sanhueza L, Sato T, Sastoque A, Senn-Irlet B, Shibata A, Siepe K, Somrithipol S, Spetik M, Sridhar P, Stchigel AM, Stuskova K, Suwannasai N, Tan YP, Thangavel R, Tiago I, Tiwari S, Tkalčec Z, Tomashevskaya MA, Tonegawa C, Tran HX, Tran NT, Trovão J, Trubitsyn VE, Van Wyk J, Vieira WAS, Vila J, Visagie CM, Vizzini A, Volobuev SV, Vu DT, Wangsawat N, Yaguchi T, Ercole E, Ferreira BW, de Souza AP, Vieira BS, Groenewald JZ. Fungal Planet description sheets: 1284-1382. PERSOONIA 2021; 47:178-374. [PMID: 37693795 PMCID: PMC10486635 DOI: 10.3767/persoonia.2021.47.06] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 11/04/2021] [Indexed: 11/25/2022]
Abstract
Novel species of fungi described in this study include those from various countries as follows: Antartica, Cladosporium austrolitorale from coastal sea sand. Australia, Austroboletus yourkae on soil, Crepidotus innuopurpureus on dead wood, Curvularia stenotaphri from roots and leaves of Stenotaphrum secundatum and Thecaphora stajsicii from capsules of Oxalis radicosa. Belgium, Paraxerochrysium coryli (incl. Paraxerochrysium gen. nov.) from Corylus avellana. Brazil, Calvatia nordestina on soil, Didymella tabebuiicola from leaf spots on Tabebuia aurea, Fusarium subflagellisporum from hypertrophied floral and vegetative branches of Mangifera indica and Microdochium maculosum from living leaves of Digitaria insularis. Canada, Cuphophyllus bondii from a grassland. Croatia, Mollisia inferiseptata from a rotten Laurus nobilis trunk. Cyprus, Amanita exilis on calcareous soil. Czech Republic, Cytospora hippophaicola from wood of symptomatic Vaccinium corymbosum. Denmark, Lasiosphaeria deviata on pieces of wood and herbaceous debris. Dominican Republic, Calocybella goethei among grass on a lawn. France (Corsica), Inocybe corsica on wet ground. France (French Guiana), Trechispora patawaensis on decayed branch of unknown angiosperm tree and Trechispora subregularis on decayed log of unknown angiosperm tree. Germany, Paramicrothecium sambuci (incl. Paramicrothecium gen. nov.) on dead stems of Sambucus nigra. India, Aureobasidium microtermitis from the gut of a Microtermes sp. termite, Laccaria diospyricola on soil and Phylloporia tamilnadensis on branches of Catunaregam spinosa. Iran, Pythium serotinoosporum from soil under Prunus dulcis. Italy, Pluteus brunneovenosus on twigs of broadleaved trees on the ground. Japan, Heterophoma rehmanniae on leaves of Rehmannia glutinosa f. hueichingensis. Kazakhstan, Murispora kazachstanica from healthy roots of Triticum aestivum. Namibia, Caespitomonium euphorbiae (incl. Caespitomonium gen. nov.) from stems of an Euphorbia sp. Netherlands, Alfaria junci, Myrmecridium junci, Myrmecridium juncicola, Myrmecridium juncigenum, Ophioceras junci, Paradinemasporium junci (incl. Paradinemasporium gen. nov.), Phialoseptomonium junci, Sporidesmiella juncicola, Xenopyricularia junci and Zaanenomyces quadripartis (incl. Zaanenomyces gen. nov.), from dead culms of Juncus effusus, Cylindromonium everniae and Rhodoveronaea everniae from Evernia prunastri, Cyphellophora sambuci and Myrmecridium sambuci from Sambucus nigra, Kiflimonium junci, Sarocladium junci, Zaanenomyces moderatricis-academiae and Zaanenomyces versatilis from dead culms of Juncus inflexus, Microcera physciae from Physcia tenella, Myrmecridium dactylidis from dead culms of Dactylis glomerata, Neochalara spiraeae and Sporidesmium spiraeae from leaves of Spiraea japonica, Neofabraea salicina from Salix sp., Paradissoconium narthecii (incl. Paradissoconium gen. nov.) from dead leaves of Narthecium ossifragum, Polyscytalum vaccinii from Vaccinium myrtillus, Pseudosoloacrosporiella cryptomeriae (incl. Pseudosoloacrosporiella gen. nov.) from leaves of Cryptomeria japonica, Ramularia pararhabdospora from Plantago lanceolata, Sporidesmiella pini from needles of Pinus sylvestris and Xenoacrodontium juglandis (incl. Xenoacrodontium gen. nov. and Xenoacrodontiaceae fam. nov.) from Juglans regia. New Zealand, Cryptometrion metrosideri from twigs of Metrosideros sp., Coccomyces pycnophyllocladi from dead leaves of Phyllocladus alpinus, Hypoderma aliforme from fallen leaves Fuscopora solandri and Hypoderma subiculatum from dead leaves Phormium tenax. Norway, Neodevriesia kalakoutskii from permafrost and Variabilispora viridis from driftwood of Picea abies. Portugal, Entomortierella hereditatis from a biofilm covering a deteriorated limestone wall. Russia, Colpoma junipericola from needles of Juniperus sabina, Entoloma cinnamomeum on soil in grasslands, Entoloma verae on soil in grasslands, Hyphodermella pallidostraminea on a dry dead branch of Actinidia sp., Lepiota sayanensis on litter in a mixed forest, Papiliotrema horticola from Malus communis, Paramacroventuria ribis (incl. Paramacroventuria gen. nov.) from leaves of Ribes aureum and Paramyrothecium lathyri from leaves of Lathyrus tuberosus. South Africa, Harzia combreti from leaf litter of Combretum collinum ssp. sulvense, Penicillium xyleborini from Xyleborinus saxesenii, Phaeoisaria dalbergiae from bark of Dalbergia armata, Protocreopsis euphorbiae from leaf litter of Euphorbia ingens and Roigiella syzygii from twigs of Syzygium chordatum. Spain, Genea zamorana on sandy soil, Gymnopus nigrescens on Scleropodium touretii, Hesperomyces parexochomi on Parexochomus quadriplagiatus, Paraphoma variabilis from dung, Phaeococcomyces kinklidomatophilus from a blackened metal railing of an industrial warehouse and Tuber suaveolens in soil under Quercus faginea. Svalbard and Jan Mayen, Inocybe nivea associated with Salix polaris. Thailand, Biscogniauxia whalleyi on corticated wood. UK, Parasitella quercicola from Quercus robur. USA, Aspergillus arizonicus from indoor air in a hospital, Caeliomyces tampanus (incl. Caeliomyces gen. nov.) from office dust, Cippumomyces mortalis (incl. Cippumomyces gen. nov.) from a tombstone, Cylindrium desperesense from air in a store, Tetracoccosporium pseudoaerium from air sample in house, Toxicocladosporium glendoranum from air in a brick room, Toxicocladosporium losalamitosense from air in a classroom, Valsonectria portsmouthensis from air in men's locker room and Varicosporellopsis americana from sludge in a water reservoir. Vietnam, Entoloma kovalenkoi on rotten wood, Fusarium chuoi inside seed of Musa itinerans, Micropsalliota albofelina on soil in tropical evergreen mixed forests and Phytophthora docyniae from soil and roots of Docynia indica. Morphological and culture characteristics are supported by DNA barcodes. Citation: Crous PW, Osieck ER, Jurjević Ž, et al. 2021. Fungal Planet description sheets: 1284-1382. Persoonia 47: 178-374. https://doi.org/10.3767/persoonia.2021.47.06.
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Affiliation(s)
- P W Crous
- Westerdijk Fungal Biodiversity Institute, P.O. Box 85167, 3508 AD Utrecht, The Netherlands
- Department of Biochemistry, Genetics and Microbiology, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria, South Africa
| | - E R Osieck
- Jkvr. C.M. van Asch van Wijcklaan 19, 3972 ST Driebergen-Rijsenburg, Netherlands
| | - Ž Jurjević
- EMSL Analytical, Inc., 200 Route 130 North, Cinnaminson, NJ 08077 USA
| | - J Boers
- Conventstraat 13A, 6701 GA Wageningen, Netherlands
| | - A L van Iperen
- Westerdijk Fungal Biodiversity Institute, P.O. Box 85167, 3508 AD Utrecht, The Netherlands
| | - M Starink-Willemse
- Westerdijk Fungal Biodiversity Institute, P.O. Box 85167, 3508 AD Utrecht, The Netherlands
| | - B Dima
- Department of Plant Anatomy, Institute of Biology, Eötvös Loránd University, Pázmány Péter sétány 1/C, H-1117, Budapest, Hungary
| | - S Balashov
- EMSL Analytical, Inc., 200 Route 130 North, Cinnaminson, NJ 08077 USA
| | - T S Bulgakov
- Department of Plant Protection, Federal Research Centre the Subtropical Scientific Centre of the Russian Academy of Sciences, Yana Fabritsiusa street 2/28, 354002 Sochi, Krasnodar region, Russia
| | - P R Johnston
- Manaaki Whenua - Landcare Research, P. Bag 92170, Auckland 1142, New Zealand
| | - O V Morozova
- Komarov Botanical Institute of the Russian Academy of Sciences, 197376, 2 Prof. Popov Str., Saint Petersburg, Russia
| | - U Pinruan
- Plant Microbe Interaction Research Team (APMT), BIOTEC, National Science and Technology Development Agency, Pathum Thani, Thailand, 113 Thailand Science Park, Phahonyothin Rd., Khlong Nueng, Khlong Luang, Pathum Thani Thailand
| | - S Sommai
- Plant Microbe Interaction Research Team (APMT), BIOTEC, National Science and Technology Development Agency, Pathum Thani, Thailand, 113 Thailand Science Park, Phahonyothin Rd., Khlong Nueng, Khlong Luang, Pathum Thani Thailand
| | - P Alvarado
- ALVALAB, C/ Dr. Fernando Bongera, Severo Ochoa bldg. S1.04, 33006 Oviedo, Spain
| | - C A Decock
- Mycothèque de l'Université catholique de Louvain (MUCL, BCCMTM), Earth and Life Institute - ELIM - Mycology, Université catholique de Louvain, Croix du Sud 2 bte L7.05.06, B-1348 Louvain-la-Neuve, Belgium
| | - T Lebel
- State Herbarium of South Australia, Adelaide, South Australia 5000 Australia
| | | | - G Moreno
- Universidad de Alcalá, Facultad de Ciencias, Departamento de Ciencias de la Vida (Botánica), 28805 Alcalá de Henares, Madrid, Spain
| | - R G Shivas
- Centre for Crop Health, University of Southern Queensland, Toowoomba 4350, Queensland, Australia
| | - L Zhao
- Westerdijk Fungal Biodiversity Institute, P.O. Box 85167, 3508 AD Utrecht, The Netherlands
| | - J Abdollahzadeh
- Department of Plant Protection, Agriculture Faculty, University of Kurdistan, P.O. Box 416, Sanandaj, Iran
| | - M Abrinbana
- Department of Plant Protection, Faculty of Agriculture, Urmia University, P.O. Box 165, Urmia, Iran
| | - D V Ageev
- LLC 'Signatec', 630090, Inzhenernaya Str. 22, Novosibirsk, Russia
| | - G Akhmetova
- Department of Plant Anatomy, Institute of Biology, Eötvös Loránd University, Pázmány Péter sétány 1/C, H-1117, Budapest, Hungary
| | - A V Alexandrova
- Lomonosov Moscow State University (MSU), 119234, 1, 12 Leninskie Gory Str., Moscow, Russia
| | - A Altés
- Universidad de Alcalá, Facultad de Ciencias, Departamento de Ciencias de la Vida (Botánica), 28805 Alcalá de Henares, Madrid, Spain
| | - A G G Amaral
- Departamento de Agronomia, Universidade Federal Rural de Pernambuco, Recife, Pernambuco, Brazil
| | - C Angelini
- Herbario Jardín Botánico Nacional Dr. Rafael Ma. Moscoso, Santo Domingo, Dominican Republic and Via Cappuccini, 78/8 - 33170 Pordenone, Italy
- Department of Botany, Moravian Museum, Zelný trh 6, 659 37 Brno, Czech Republic
| | - V Antonín
- Department of Botany, Moravian Museum, Zelný trh 6, 659 37 Brno, Czech Republic
| | - F Arenas
- Departamento de Biología Vegetal (Botánica), Facultad de Biología, Universidad de Murcia, 30100 Murcia, Spain
| | - P Asselman
- Research Group Mycology, Department of Biology, Ghent University, K.L. Ledeganckstraat 35, 9000 Gent, Belgium
| | - F Badali
- Department of Plant Protection, Faculty of Agriculture, Urmia University, P.O. Box 165, Urmia, Iran
| | - A Baghela
- National Fungal Culture Collection of India (NFCCI)
- Biodiversity and Palaeobiology Group, MACS-Agharkar Research Institute, G.G. Agarkar Road, Pune 411004, Maharashtra, India
| | - A Bañares
- Departamento de Botánica, Ecología y Fisiología Vegetal, Universidad de La Laguna. Apdo. 456, E-38200 La Laguna, Tenerife, Islas Canarias, Spain
| | - R W Barreto
- Departamento de Fitopatologia, Universidade Federal de Viçosa, Viçosa, 36570-900, MG, Brazil
| | - I G Baseia
- Departamento Botânica e Zoologia, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Campus Universitário, 59072-970 Natal, RN, Brazil
| | - J-M Bellanger
- CEFE, CNRS, Université de Montpellier, Université Paul-Valéry Montpellier 3, EPHE, IRD, INSERM, 1919 route de Mende, F-34293 Montpellier Cedex 5, France
| | - A Berraf-Tebbal
- Mendeleum - Institute of Genetics, Faculty of Horticulture, Mendel University in Brno, Valticka 334, Lednice, 69144, Czech Republic
| | - A Yu Biketova
- Institute of Biochemistry, Biological Research Centre of the Eötvös Lóránd Research Network, Temesvári blvd. 62, H-6726 Szeged, Hungary
- Jodrell Laboratory, Royal Botanic Gardens, Kew, Richmond, Surrey TW9 3DS, UK
| | - N V Bukharova
- Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far Eastern Branch of the Russian Academy of Sciences, Pr-t 100-let Vladivostoka 159, 690022 Vladivostok, Russia
| | - T I Burgess
- Phytophthora Science and Management, Harry Butler Institute, Murdoch University, 90 South Street, Murdoch, WA 6150, Australia
| | - J Cabero
- C/ El Sol 6, 49800 Toro, Zamora, Spain
| | - M P S Câmara
- Departamento de Agronomia, Universidade Federal Rural de Pernambuco, Recife, Pernambuco, Brazil
| | - J F Cano-Lira
- Mycology Unit, Medical School, Universitat Rovira i Virgili (URV), Sant Llorenç 21, 43201 Reus, Tarragona, Spain
| | - P Ceryngier
- Institute of Biological Sciences, Cardinal Stefan Wyszyński University, Wóycickiego 1/3, 01-938 Warsaw, Poland
| | - R Chávez
- Facultad de Química y Biología, Universidad de Santiago de Chile (USACH), Alameda 3363, Estación Central, 9170022, Santiago, Chile
| | - D A Cowan
- Centre for Microbial Ecology and Genomics, Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Private Bag X20, Hatfield 0028, Pretoria, South Africa
| | - A F de Lima
- Departamento de Agronomia, Universidade Federal Rural de Pernambuco, Recife, Pernambuco, Brazil
| | - R L Oliveira
- Programa de Pós-Graduação em Sistemática e Evolução, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Av. Senador Salgado Filho, 3000, 59072-970 Natal, RN, Brazil
| | - S Denman
- Forest Research, Alice Holt Lodge, Farnham, Surrey, UK
| | - Q N Dang
- Forest Protection Research Centre, Vietnamese Academy of Forest Sciences, 46 Duc Thang Ward, Bac Tu Liem District, Hanoi City, Vietnam
| | - F Dovana
- Via Quargnento, 17, 15029, Solero (AL), Italy
| | - I G Duarte
- Departamento de Agronomia, Universidade Federal Rural de Pernambuco, Recife, Pernambuco, Brazil
| | - A Eichmeier
- Mendeleum - Institute of Genetics, Faculty of Horticulture, Mendel University in Brno, Valticka 334, Lednice, 69144, Czech Republic
| | - A Erhard
- EMSL Analytical, Inc., 200 Route 130 North, Cinnaminson, NJ 08077 USA
| | - F Esteve-Raventós
- Universidad de Alcalá, Facultad de Ciencias, Departamento de Ciencias de la Vida (Botánica), 28805 Alcalá de Henares, Madrid, Spain
| | - A Fellin
- Via G. Canestrini 10/B, I-38028, Novella (TN), Italy
| | - G Ferisin
- Associazione Micologica Bassa Friulana, 33052 Cervignano del Friuli, Italy
| | - R J Ferreira
- Programa de Pós-Graduação em Biologia de Fungos, Departamento de Micologia, Universidade Federal de Pernambuco, 50670-420 Recife, PE, Brazil
| | - A Ferrer
- Facultad de Estudios Interdisciplinarios, Núcleo de Química y Bioquímica, Universidad Mayor, Santiago, Chile
| | - P Finy
- Zsombolyai u. 56, 8000 Székesfehérvár, Hungary
| | - E Gaya
- Comparative Fungal Biology, Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3DS, UK
| | - A D W Geering
- Centre for Horticultural Science, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Dutton Park 4102, Queensland, Australia
| | - C Gil-Durán
- Facultad de Química y Biología, Universidad de Santiago de Chile (USACH), Alameda 3363, Estación Central, 9170022, Santiago, Chile
| | - K Glässnerová
- Department of Botany, Faculty of Science, Charles University, Benátská 2, 128 01 Prague 2, Czech Republic
| | - A M Glushakova
- Lomonosov Moscow State University (MSU), 119234, 1, 12 Leninskie Gory Str., Moscow, Russia
- Mechnikov Research Institute for Vaccines and Sera, 105064, Moscow, Maly Kazenny by-street, 5A, Russia
| | - D Gramaje
- Instituto de Ciencias de la Vid y del Vino (ICVV), Consejo Superior de Investigaciones Científicas (CSIC) - Universidad de La Rioja - Gobierno de La Rioja, Ctra. LO-20, Salida 13, 26007, Logroño, Spain
| | | | - A L Guarnizo
- Departamento de Biología Vegetal (Botánica), Facultad de Biología, Universidad de Murcia, 30100 Murcia, Spain
| | - D Haelewaters
- Research Group Mycology, Department of Biology, Ghent University, K.L. Ledeganckstraat 35, 9000 Gent, Belgium
- Faculty of Science, University of South Bohemia, Branišovská 31, 370 05 České Budějovice, Czech Republic
| | - R E Halling
- Inst. Systematic Botany, New York Botanical Garden, 2900 Southern Blvd, Bronx, NY, USA 10458-5126
| | - R Hill
- Comparative Fungal Biology, Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3DS, UK
| | - Y Hirooka
- Department of Clinical Plant Science, Hosei University, 3-7-2 Kajino-cho, Koganei, Tokyo, Japan
| | - V Hubka
- Department of Botany, Faculty of Science, Charles University, Benátská 2, 128 01 Prague 2, Czech Republic
- Medical Mycology Research Center, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8673, Japan
| | - V A Iliushin
- Komarov Botanical Institute of the Russian Academy of Sciences, 197376, 2 Prof. Popov Str., Saint Petersburg, Russia
| | - D D Ivanova
- The Herzen State Pedagogical University of Russia, 191186, 48 Moyka Embankment, Saint Petersburg, Russia
| | - N E Ivanushkina
- All-Russian Collection of Microorganisms, G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Pushchino Center for Biological Research of the Russian Academy of Sciences, 142290, Pushchino, pr. Nauki, 5, Russia
| | - P Jangsantear
- Forest and Plant Conservation Research Office, Department of National Parks, Wildlife and Plant Conservation, Chatuchak District, Bangkok, Thailand
| | - A Justo
- Westerdijk Fungal Biodiversity Institute, P.O. Box 85167, 3508 AD Utrecht, The Netherlands
| | - A V Kachalkin
- Lomonosov Moscow State University (MSU), 119234, 1, 12 Leninskie Gory Str., Moscow, Russia
- All-Russian Collection of Microorganisms, G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Pushchino Center for Biological Research of the Russian Academy of Sciences, 142290, Pushchino, pr. Nauki, 5, Russia
| | - S Kato
- Department of Clinical Plant Science, Hosei University, 3-7-2 Kajino-cho, Koganei, Tokyo, Japan
| | - P Khamsuntorn
- Microbe Interaction and Ecology Laboratory (BMIE), National Center for Genetic Engineering and Biotechnology (BIOTEC), 113 Thailand Science Park, Phahonyothin Rd., Khlong Nueng, Khlong Luang, Pathum Thani Thailand
| | - I Y Kirtsideli
- Komarov Botanical Institute of the Russian Academy of Sciences, 197376, 2 Prof. Popov Str., Saint Petersburg, Russia
| | - D G Knapp
- Department of Plant Anatomy, Institute of Biology, Eötvös Loránd University, Pázmány Péter sétány 1/C, H-1117, Budapest, Hungary
| | - G A Kochkina
- All-Russian Collection of Microorganisms, G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Pushchino Center for Biological Research of the Russian Academy of Sciences, 142290, Pushchino, pr. Nauki, 5, Russia
| | - O Koukol
- Department of Botany, Charles University, Faculty of Science, Benátská 2, 128 01 Prague 2, Czech Republic
| | - G M Kovács
- Department of Plant Anatomy, Institute of Biology, Eötvös Loránd University, Pázmány Péter sétány 1/C, H-1117, Budapest, Hungary
| | - J Kruse
- Pfalzmuseum für Naturkunde - POLLICHIA-Museum, Hermann-Schäfer-Str. 17, 67098 Bad Dürkheim, Germany
| | - T K A Kumar
- Department of Botany, The Zamorin's Guruvayurappan College, Kozhikode, Kerala, India
| | - I Kušan
- Laboratory for Biological Diversity, Ruđer Bošković Institute, Bijenička cesta 54, HR-10000 Zagreb, Croatia
| | - T Læssøe
- Globe Inst./Department of Biology, University of Copenhagen, Universitetsparken 15, 2100 Copenhagen Ø, Denmark, Denmark
| | - E Larsson
- Biological and Environmental Sciences, University of Gothenburg, and Gothenburg Global Biodiversity Centre, Box 461, SE40530 Göteborg, Sweden
| | - R Lebeuf
- 775, rang du Rapide Nord, Saint-Casimir, Quebec, G0A 3L0, Canada
| | - G Levicán
- Facultad de Química y Biología, Universidad de Santiago de Chile (USACH), Alameda 3363, Estación Central, 9170022, Santiago, Chile
| | | | - P Marinho
- Departamento de Biologia Celular e Genética, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - J J Luangsa-Ard
- Plant Microbe Interaction Research Team (APMT), BIOTEC, National Science and Technology Development Agency, Pathum Thani, Thailand, 113 Thailand Science Park, Phahonyothin Rd., Khlong Nueng, Khlong Luang, Pathum Thani Thailand
| | - E G Lukina
- Saint Petersburg State University, 199034, 7-9 Universitetskaya emb., St. Petersburg, Russia
| | - V Magaña-Dueñas
- Mycology Unit, Medical School, Universitat Rovira i Virgili (URV), Sant Llorenç 21, 43201 Reus, Tarragona, Spain
| | | | - E F Malysheva
- Komarov Botanical Institute of the Russian Academy of Sciences, 197376, 2 Prof. Popov Str., Saint Petersburg, Russia
| | - V F Malysheva
- Komarov Botanical Institute of the Russian Academy of Sciences, 197376, 2 Prof. Popov Str., Saint Petersburg, Russia
| | - B Martín
- Servicio Territorial de Agricultura, Ganadería y Desarrollo Rural de Zamora, C/ Prado Tuerto 17, 49019 Zamora, Spain
| | - M P Martín
- Real Jardín Botánico RJB-CSIC, Plaza de Murillo 2, 28014 Madrid, Spain
| | - N Matočec
- Laboratory for Biological Diversity, Ruđer Bošković Institute, Bijenička cesta 54, HR-10000 Zagreb, Croatia
| | - A R McTaggart
- Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane 4001, Australia
| | - M Mehrabi-Koushki
- Department of Plant Protection, Faculty of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz, Khuzestan Province, Iran
- Biotechnology and Bioscience Research Center, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - A Mešić
- Laboratory for Biological Diversity, Ruđer Bošković Institute, Bijenička cesta 54, HR-10000 Zagreb, Croatia
| | - A N Miller
- University of Illinois Urbana-Champaign, Illinois Natural History Survey, 1816 South Oak Street, Champaign, Illinois, 61820, USA
| | - P Mironova
- Research Group Mycology, Department of Biology, Ghent University, K.L. Ledeganckstraat 35, 9000 Gent, Belgium
| | - P-A Moreau
- Université de Lille, Faculté de pharmacie de Lille, EA 4483, F-59000 Lille, France
| | - A Morte
- Departamento de Biología Vegetal (Botánica), Facultad de Biología, Universidad de Murcia, 30100 Murcia, Spain
| | - K Müller
- Falkstraße 103, D-47058 Duisburg, Germany
| | - L G Nagy
- Institute of Biochemistry, Biological Research Centre of the Eötvös Lóránd Research Network, Temesvári blvd. 62, H-6726 Szeged, Hungary
| | - S Nanu
- Department of Botany, The Zamorin's Guruvayurappan College, Kozhikode, Kerala, India
| | - A Navarro-Ródenas
- Departamento de Biología Vegetal (Botánica), Facultad de Biología, Universidad de Murcia, 30100 Murcia, Spain
| | - W J Nel
- Department of Biochemistry, Genetics and Microbiology, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria, South Africa
| | - T H Nguyen
- Forest Protection Research Centre, Vietnamese Academy of Forest Sciences, 46 Duc Thang Ward, Bac Tu Liem District, Hanoi City, Vietnam
| | - T F Nóbrega
- Departamento de Fitopatologia, Universidade Federal de Viçosa, Viçosa, 36570-900, MG, Brazil
| | - M E Noordeloos
- Naturalis Biodiversity Center, section Botany, P.O. Box 9517, 2300 RA Leiden, The Netherlands
| | - I Olariaga
- Rey Juan Carlos University, Dep. Biology and Geology, Physics and Inorganic Chemistry, C/ Tulipán s/n, 28933 Móstoles, Madrid, Spain
| | - B E Overton
- 205 East Campus Science Center, Lock Haven University, Department of Biology, Lock Haven, PA 17745, USA
| | - S M Ozerskaya
- All-Russian Collection of Microorganisms, G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Pushchino Center for Biological Research of the Russian Academy of Sciences, 142290, Pushchino, pr. Nauki, 5, Russia
| | - P Palani
- Centre for Advanced Studies in Botany, University of Madras, Guindy Campus, Chennai 600 025, India
| | - F Pancorbo
- Sociedad Micológica de Madrid, Real Jardín Botánico, C/ Claudio Moyano 1, 28014 Madrid, Spain
| | - V Papp
- Department of Botany, Hungarian University of Agriculture and Life Sciences, Ménesi út 44. H-1118 Budapest, Hungary
| | - J Pawłowska
- Institute of Evolutionary Biology, Faculty of Biology, Biological and Chemical Research Centre, University of Warsaw, ul. Zwirki i Wigury 101, 02-089 Warsaw, Poland
| | - T Q Pham
- Forest Protection Research Centre, Vietnamese Academy of Forest Sciences, 46 Duc Thang Ward, Bac Tu Liem District, Hanoi City, Vietnam
| | - C Phosri
- Biology programme, Faculty of Science, Nakhon Phanom University, Nakhon Phanom, 48000, Thailand
| | - E S Popov
- Komarov Botanical Institute of the Russian Academy of Sciences, 197376, 2 Prof. Popov Str., Saint Petersburg, Russia
| | - A Portugal
- Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, 3004-531 Coimbra, Portugal
- Fitolab - Laboratory for Phytopathology, Instituto Pedro Nunes, 3030-199 Coimbra, Portugal
| | - A Pošta
- Laboratory for Biological Diversity, Ruđer Bošković Institute, Bijenička cesta 54, HR-10000 Zagreb, Croatia
| | - K Reschke
- Mycology Research Group, Faculty of Biological Sciences, Goethe University Frankfurt am Main, Max-von-Laue Straße 13, 60439 Frankfurt am Main, Germany
| | - M Reul
- Ostenstraße 19, D-95615 Marktredwitz, Germany
| | - G M Ricci
- 205 East Campus Science Center, Lock Haven University, Department of Biology, Lock Haven, PA 17745, USA
| | - A Rodríguez
- Departamento de Biología Vegetal (Botánica), Facultad de Biología, Universidad de Murcia, 30100 Murcia, Spain
| | - J Romanowski
- Institute of Biological Sciences, Cardinal Stefan Wyszyński University, Wóycickiego 1/3, 01-938 Warsaw, Poland
| | - N Ruchikachorn
- The Institute for the Promotion of Teaching Science and Technology, Bangkok, 10110, Thailand
| | - I Saar
- Institute of Ecology and Earth Sciences, University of Tartu, Ravila Street 14A, 50411 Tartu, Estonia
| | - A Safi
- Department of Plant Protection, Faculty of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz, Khuzestan Province, Iran
| | - B Sakolrak
- Forest and Plant Conservation Research Office, Department of National Parks, Wildlife and Plant Conservation, Chatuchak District, Bangkok, Thailand
| | - F Salzmann
- Kloosterweg 5, 6301WK, Valkenburg a/d Geul, The Netherlands
| | - M Sandoval-Denis
- Westerdijk Fungal Biodiversity Institute, P.O. Box 85167, 3508 AD Utrecht, The Netherlands
| | - E Sangwichein
- Department of Biology, Faculty of Science, Ramkhamhaeng University, Bangkok, 10240, Thailand
| | - L Sanhueza
- Facultad de Estudios Interdisciplinarios, Núcleo de Química y Bioquímica, Universidad Mayor, Santiago, Chile
| | - T Sato
- Department of Agro-Food Science, Niigata Agro-Food University, 2416 Hiranedai, Tainai, Niigata Prefecture, Japan
| | - A Sastoque
- Mycology Unit, Medical School, Universitat Rovira i Virgili (URV), Sant Llorenç 21, 43201 Reus, Tarragona, Spain
| | - B Senn-Irlet
- Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland
| | - A Shibata
- Department of Clinical Plant Science, Hosei University, 3-7-2 Kajino-cho, Koganei, Tokyo, Japan
| | - K Siepe
- Geeste 133, D-46342 Velen, Germany
| | - S Somrithipol
- Plant Microbe Interaction Research Team (APMT), BIOTEC, National Science and Technology Development Agency, Pathum Thani, Thailand, 113 Thailand Science Park, Phahonyothin Rd., Khlong Nueng, Khlong Luang, Pathum Thani Thailand
| | - M Spetik
- Mendeleum - Institute of Genetics, Faculty of Horticulture, Mendel University in Brno, Valticka 334, Lednice, 69144, Czech Republic
| | - P Sridhar
- Centre for Advanced Studies in Botany, University of Madras, Guindy Campus, Chennai 600 025, India
| | - A M Stchigel
- Mycology Unit, Medical School, Universitat Rovira i Virgili (URV), Sant Llorenç 21, 43201 Reus, Tarragona, Spain
| | - K Stuskova
- Mendeleum - Institute of Genetics, Faculty of Horticulture, Mendel University in Brno, Valticka 334, Lednice, 69144, Czech Republic
| | - N Suwannasai
- Department of Microbiology, Faculty of Science, Srinakharinwirot University, Bangkok, 10110 Thailand
| | - Y P Tan
- Plant Pathology Herbarium, Department of Agriculture and Fisheries, Dutton Park 4102, Queensland, Australia
| | - R Thangavel
- Plant Health and Environment Laboratory, Ministry for Primary Industries, P.O. Box 2095, Auckland 1140, New Zealand
| | - I Tiago
- Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, 3004-531 Coimbra, Portugal
| | - S Tiwari
- National Fungal Culture Collection of India (NFCCI)
- Biodiversity and Palaeobiology Group, MACS-Agharkar Research Institute, G.G. Agarkar Road, Pune 411004, Maharashtra, India
| | - Z Tkalčec
- Laboratory for Biological Diversity, Ruđer Bošković Institute, Bijenička cesta 54, HR-10000 Zagreb, Croatia
| | - M A Tomashevskaya
- All-Russian Collection of Microorganisms, G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Pushchino Center for Biological Research of the Russian Academy of Sciences, 142290, Pushchino, pr. Nauki, 5, Russia
| | - C Tonegawa
- Department of Clinical Plant Science, Hosei University, 3-7-2 Kajino-cho, Koganei, Tokyo, Japan
| | - H X Tran
- Forest Protection Research Centre, Vietnamese Academy of Forest Sciences, 46 Duc Thang Ward, Bac Tu Liem District, Hanoi City, Vietnam
| | - N T Tran
- Centre for Horticultural Science, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Dutton Park 4102, Queensland, Australia
| | - J Trovão
- Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, 3004-531 Coimbra, Portugal
| | - V E Trubitsyn
- All-Russian Collection of Microorganisms, G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Pushchino Center for Biological Research of the Russian Academy of Sciences, 142290, Pushchino, pr. Nauki, 5, Russia
| | - J Van Wyk
- Department of Plant Soil and Microbial Sciences, 1066 Bogue Street, Michigan State University, East Lansing, MI, 48824 USA
| | - W A S Vieira
- Departamento de Agronomia, Universidade Federal Rural de Pernambuco, Recife, Pernambuco, Brazil
| | - J Vila
- Passatge del Torn, 4, 17800 Olot, Spain
| | - C M Visagie
- Department of Biochemistry, Genetics and Microbiology, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria, South Africa
| | - A Vizzini
- Department of Life Sciences and Systems Biology, University of Torino, Viale P.A. Mattioli 25, I-10125 Torino, Italy
| | - S V Volobuev
- Komarov Botanical Institute of the Russian Academy of Sciences, 197376, 2 Prof. Popov Str., Saint Petersburg, Russia
| | - D T Vu
- Research Planning and International Cooperation Department, Plant Resources Center, An Khanh, Hoai Duc, Hanoi 152900, Vietnam
| | - N Wangsawat
- Department of Biology, Faculty of Science, Srinakharinwirot University, Bangkok, 10110 Thailand
| | - T Yaguchi
- Medical Mycology Research Center, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8673, Japan
| | - E Ercole
- Via Murazzano 11, I-10141, Torino (TO), Italy
| | - B W Ferreira
- Departamento de Fitopatologia, Universidade Federal de Viçosa, Viçosa, 36570-900, MG, Brazil
| | - A P de Souza
- Laboratório de Microbiologia e Fitopatologia, Universidade Federal de Uberlândia, Monte Carmelo, 38500-000, MG, Brazil
| | - B S Vieira
- Laboratório de Microbiologia e Fitopatologia, Universidade Federal de Uberlândia, Monte Carmelo, 38500-000, MG, Brazil
| | - J Z Groenewald
- Westerdijk Fungal Biodiversity Institute, P.O. Box 85167, 3508 AD Utrecht, The Netherlands
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Advances in pullulan production from agro-based wastes by Aureobasidium pullulans and its applications. INNOV FOOD SCI EMERG 2021. [DOI: 10.1016/j.ifset.2021.102846] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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A novel species of Aureobasidium (Dothioraceae) recovered from Acer pseudosieboldianum in Korea. JOURNAL OF ASIA-PACIFIC BIODIVERSITY 2021. [DOI: 10.1016/j.japb.2021.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Cai S, Rico-Munoz E, Snyder AB. Intermediate Thermoresistance in Black Yeast Asexual Cells Variably Increases with Culture Age, Promoting Survival and Spoilage in Thermally Processed Shelf-Stable Foods. J Food Prot 2021; 84:1582-1591. [PMID: 33878188 DOI: 10.4315/jfp-21-103] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 04/20/2021] [Indexed: 11/11/2022]
Abstract
ABSTRACT Black yeasts are a functional group that has caused spoilage in cold-filled and hot-filled beverages, as well as other water activity-controlled food products. We established quantitative thermoresistance parameters for the inactivation of 12 Aureobasidium and Exophiala isolates through isothermal experiments and a challenge study. Culture age (2 versus 28 days) variably affected the thermoresisitance among the black yeast strains. Variation in thermoresistance exists within each genus, but the two most resistant strains were the Exophiala isolates. The two most heat-resistant isolates were Exophiala phaeomuriformis FSL-E2-0572, with a D60-value of 7.69 ± 0.63 min in 28-day culture and Exophiala dermatitidis YB-734, with a D60-value of 16.32 ± 2.13 min in 28-day culture. Although these thermoresistance levels were, in some cases, greater than those for conidia and vegetative cells from other common food spoilage fungi, they were much more sensitive than the ascospores of heat-resistant molds most associated with spoilage of hot-filled products. However, given that black yeasts have caused spoilage in hot-filled products, we hypothesized that this intermediate degree of thermoresistance may support survival following introduction during active cooling before package seals have formed. A challenge study was performed in an acidic (apple cider) and water activity-controlled (maple syrup) product to evaluate survival. When apple cider was hot filled at 82°C, black yeast counts were reduced by 4.1 log CFU/mL 24 h after the heat treatment, but the survivors increased up to 6.7 log CFU/mL after 2 weeks. In comparison, the counts were below the detection limit after both 24 h and 14 days of shelf life in both products when filled at the boiling points. This suggests that ensuring water microbial quality in cooling tunnels and nozzle sanitation may be essential in mitigating the introduction of these fungi. HIGHLIGHTS
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Affiliation(s)
- Shiyu Cai
- Department of Food Science, Cornell University, Ithaca, New York 14853
| | - Emilia Rico-Munoz
- BCN Research Laboratories, Inc., 2491 Stock Creek Boulevard, Rockford, Tennessee 37853, USA
| | - Abigail B Snyder
- Department of Food Science, Cornell University, Ithaca, New York 14853
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Černoša A, Sun X, Gostinčar C, Fang C, Gunde-Cimerman N, Song Z. Virulence Traits and Population Genomics of the Black Yeast Aureobasidium melanogenum. J Fungi (Basel) 2021; 7:jof7080665. [PMID: 34436204 PMCID: PMC8401163 DOI: 10.3390/jof7080665] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 08/13/2021] [Accepted: 08/14/2021] [Indexed: 12/22/2022] Open
Abstract
The black yeast-like fungus Aureobasidium melanogenum is an opportunistic human pathogen frequently found indoors. Its traits, potentially linked to pathogenesis, have never been systematically studied. Here, we examine 49 A. melanogenum strains for growth at 37 °C, siderophore production, hemolytic activity, and assimilation of hydrocarbons and human neurotransmitters and report within-species variability. All but one strain grew at 37 °C. All strains produced siderophores and showed some hemolytic activity. The largest differences between strains were observed in the assimilation of hydrocarbons and human neurotransmitters. We show for the first time that fungi from the order Dothideales can assimilate aromatic hydrocarbons. To explain the background, we sequenced the genomes of all 49 strains and identified genes putatively involved in siderophore production and hemolysis. Genomic analysis revealed a fairly structured population of A.melanogenum, raising the possibility that some phylogenetic lineages have higher virulence potential than others. Population genomics indicated that the species is strictly clonal, although more than half of the genomes were diploid. The existence of relatively heterozygous diploids in an otherwise clonal species is described for only the second time in fungi. The genomic and phenotypic data from this study should help to resolve the non-trivial taxonomy of the genus Aureobasidium and reduce the medical hazards of exploiting the biotechnological potential of other, non-pathogenic species of this genus.
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Affiliation(s)
- Anja Černoša
- Department of Biology, Biotechnical Faculty, University of Ljubljana, 1000 Ljubljana, Slovenia; (A.Č.); (N.G.-C.)
| | - Xiaohuan Sun
- BGI-Shenzhen, Beishan Industrial Zone, Shenzhen 518083, China; (X.S.); (C.F.); (Z.S.)
| | - Cene Gostinčar
- Department of Biology, Biotechnical Faculty, University of Ljubljana, 1000 Ljubljana, Slovenia; (A.Č.); (N.G.-C.)
- Lars Bolund Institute of Regenerative Medicine, BGI-Qingdao, Qingdao 266555, China
- Correspondence: or ; Tel.: +386-1-320-3392
| | - Chao Fang
- BGI-Shenzhen, Beishan Industrial Zone, Shenzhen 518083, China; (X.S.); (C.F.); (Z.S.)
| | - Nina Gunde-Cimerman
- Department of Biology, Biotechnical Faculty, University of Ljubljana, 1000 Ljubljana, Slovenia; (A.Č.); (N.G.-C.)
| | - Zewei Song
- BGI-Shenzhen, Beishan Industrial Zone, Shenzhen 518083, China; (X.S.); (C.F.); (Z.S.)
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El Baidouri F, Zalar P, James TY, Gladfelter AS, Amend A. Evolution and Physiology of Amphibious Yeasts. Annu Rev Microbiol 2021; 75:337-357. [PMID: 34351793 DOI: 10.1146/annurev-micro-051421-121352] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Since the emergence of the first fungi some 700 million years ago, unicellular yeast-like forms have emerged multiple times in independent lineages via convergent evolution. While tens to hundreds of millions of years separate the independent evolution of these unicellular organisms, they share remarkable phenotypic and metabolic similarities, and all have streamlined genomes. Yeasts occur in every aquatic environment yet examined. Many species are aquatic; perhaps most are amphibious. How these species have evolved to thrive in aquatic habitats is fundamental to understanding functions and evolutionary mechanisms in this unique group of fungi. Here we review the state of knowledge of the physiological and ecological diversity of amphibious yeasts and their key evolutionary adaptations enabling survival in aquatic habitats. We emphasize some genera previously thought to be exclusively terrestrial. Finally, we discuss the ability of many yeasts to survive in extreme habitats and how this might lend insight into ecological plasticity, including amphibious lifestyles. Expected final online publication date for the Annual Review of Microbiology, Volume 75 is October 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
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Affiliation(s)
- Fouad El Baidouri
- School of Life Sciences, University of Hawai'i at Mānoa, Honolulu, Hawaii 96822, USA; , .,Harvard T.H. Chan School of Public Health, Boston, Massachusetts 02115, USA
| | - Polona Zalar
- Department of Biology, Biotechnical Faculty, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Timothy Y James
- Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - Amy S Gladfelter
- Department of Biology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA.,Marine Biological Laboratory, Woods Hole, Massachusetts 02543, USA
| | - Anthony Amend
- School of Life Sciences, University of Hawai'i at Mānoa, Honolulu, Hawaii 96822, USA; ,
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Crous PW, Osieck ER, Jurjević Ž, Boers J, van Iperen AL, Starink-Willemse M, Dima B, Balashov S, Bulgakov TS, Johnston PR, Morozova OV, Pinruan U, Sommai S, Alvarado P, Decock CA, Lebel T, McMullan-Fisher S, Moreno G, Shivas RG, Zhao L, Abdollahzadeh J, Abrinbana M, Ageev DV, Akhmetova G, Alexandrova AV, Altés A, Amaral AGG, Angelini C, Antonín V, Arenas F, Asselman P, Badali F, Baghela A, Bañares A, Barreto RW, Baseia IG, Bellanger JM, Berraf-Tebbal A, Biketova AY, Bukharova NV, Burgess TI, Cabero J, Câmara MPS, Cano-Lira JF, Ceryngier P, Chávez R, Cowan DA, de Lima AF, Oliveira RL, Denman S, Dang QN, Dovana F, Duarte IG, Eichmeier A, Erhard A, Esteve-Raventós F, Fellin A, Ferisin G, Ferreira RJ, Ferrer A, Finy P, Gaya E, Geering ADW, Gil-Durán C, Glässnerová K, Glushakova AM, Gramaje D, Guard FE, Guarnizo AL, Haelewaters D, Halling RE, Hill R, Hirooka Y, Hubka V, Iliushin VA, Ivanova DD, Ivanushkina NE, Jangsantear P, Justo A, Kachalkin AV, Kato S, Khamsuntorn P, Kirtsideli IY, Knapp DG, Kochkina GA, Koukol O, Kovács GM, Kruse J, Kumar TKA, Kušan I, Læssøe T, Larsson E, Lebeuf R, Levicán G, Loizides M, Marinho P, Luangsa-Ard JJ, Lukina EG, Magaña-Dueñas V, Maggs-Kölling G, Malysheva EF, Malysheva VF, Martín B, Martín MP, Matočec N, McTaggart AR, Mehrabi-Koushki M, Mešić A, Miller AN, Mironova P, Moreau PA, Morte A, Müller K, Nagy LG, Nanu S, Navarro-Ródenas A, Nel WJ, Nguyen TH, Nóbrega TF, Noordeloos ME, Olariaga I, Overton BE, Ozerskaya SM, Palani P, Pancorbo F, Papp V, Pawłowska J, Pham TQ, Phosri C, Popov ES, Portugal A, Pošta A, Reschke K, Reul M, Ricci GM, Rodríguez A, Romanowski J, Ruchikachorn N, Saar I, Safi A, Sakolrak B, Salzmann F, Sandoval-Denis M, Sangwichein E, Sanhueza L, Sato T, Sastoque A, Senn-Irlet B, Shibata A, Siepe K, Somrithipol S, Spetik M, Sridhar P, Stchigel AM, Stuskova K, Suwannasai N, Tan YP, Thangavel R, Tiago I, Tiwari S, Tkalčec Z, Tomashevskaya MA, Tonegawa C, Tran HX, Tran NT, Trovão J, Trubitsyn VE, Van Wyk J, Vieira WAS, Vila J, Visagie CM, Vizzini A, Volobuev SV, Vu DT, Wangsawat N, Yaguchi T, Ercole E, Ferreira BW, de Souza AP, Vieira BS, Groenewald JZ. Fungal Planet description sheets: 1284-1382. PERSOONIA 2021; 47:178-374. [PMID: 38352974 PMCID: PMC10784667 DOI: 10.3767/persoonia.2023.47.06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 11/04/2021] [Indexed: 02/16/2024]
Abstract
Novel species of fungi described in this study include those from various countries as follows: Antartica, Cladosporium austrolitorale from coastal sea sand. Australia, Austroboletus yourkae on soil, Crepidotus innuopurpureus on dead wood, Curvularia stenotaphri from roots and leaves of Stenotaphrum secundatum and Thecaphora stajsicii from capsules of Oxalis radicosa. Belgium, Paraxerochrysium coryli (incl. Paraxerochrysium gen. nov.) from Corylus avellana. Brazil, Calvatia nordestina on soil, Didymella tabebuiicola from leaf spots on Tabebuia aurea, Fusarium subflagellisporum from hypertrophied floral and vegetative branches of Mangifera indica and Microdochium maculosum from living leaves of Digitaria insularis. Canada, Cuphophyllus bondii from a grassland. Croatia, Mollisia inferiseptata from a rotten Laurus nobilis trunk. Cyprus, Amanita exilis on calcareous soil. Czech Republic, Cytospora hippophaicola from wood of symptomatic Vaccinium corymbosum. Denmark, Lasiosphaeria deviata on pieces of wood and herbaceous debris. Dominican Republic, Calocybella goethei among grass on a lawn. France (Corsica), Inocybe corsica on wet ground. France (French Guiana), Trechispora patawaensis on decayed branch of unknown angiosperm tree and Trechispora subregularis on decayed log of unknown angiosperm tree. Germany, Paramicrothecium sambuci (incl. Paramicrothecium gen. nov.) on dead stems of Sambucus nigra. India, Aureobasidium microtermitis from the gut of a Microtermes sp. termite, Laccaria diospyricola on soil and Phylloporia tamilnadensis on branches of Catunaregam spinosa. Iran, Pythium serotinoosporum from soil under Prunus dulcis. Italy, Pluteus brunneovenosus on twigs of broadleaved trees on the ground. Japan, Heterophoma rehmanniae on leaves of Rehmannia glutinosa f. hueichingensis. Kazakhstan, Murispora kazachstanica from healthy roots of Triticum aestivum. Namibia, Caespitomonium euphorbiae (incl. Caespitomonium gen. nov.) from stems of an Euphorbia sp. Netherlands, Alfaria junci, Myrmecridium junci, Myrmecridium juncicola, Myrmecridium juncigenum, Ophioceras junci, Paradinemasporium junci (incl. Paradinemasporium gen. nov.), Phialoseptomonium junci, Sporidesmiella juncicola, Xenopyricularia junci and Zaanenomyces quadripartis (incl. Zaanenomyces gen. nov.), from dead culms of Juncus effusus, Cylindromonium everniae and Rhodoveronaea everniae from Evernia prunastri, Cyphellophora sambuci and Myrmecridium sambuci from Sambucus nigra, Kiflimonium junci, Sarocladium junci, Zaanenomyces moderatricis-academiae and Zaanenomyces versatilis from dead culms of Juncus inflexus, Microcera physciae from Physcia tenella, Myrmecridium dactylidis from dead culms of Dactylis glomerata, Neochalara spiraeae and Sporidesmium spiraeae from leaves of Spiraea japonica, Neofabraea salicina from Salix sp., Paradissoconium narthecii (incl. Paradissoconium gen. nov.) from dead leaves of Narthecium ossifragum, Polyscytalum vaccinii from Vaccinium myrtillus, Pseudosoloacrosporiella cryptomeriae (incl. Pseudosoloacrosporiella gen. nov.) from leaves of Cryptomeria japonica, Ramularia pararhabdospora from Plantago lanceolata, Sporidesmiella pini from needles of Pinus sylvestris and Xenoacrodontium juglandis (incl. Xenoacrodontium gen. nov. and Xenoacrodontiaceae fam. nov.) from Juglans regia. New Zealand, Cryptometrion metrosideri from twigs of Metrosideros sp., Coccomyces pycnophyllocladi from dead leaves of Phyllocladus alpinus, Hypoderma aliforme from fallen leaves Fuscopora solandri and Hypoderma subiculatum from dead leaves Phormium tenax. Norway, Neodevriesia kalakoutskii from permafrost and Variabilispora viridis from driftwood of Picea abies. Portugal, Entomortierella hereditatis from a biofilm covering a deteriorated limestone wall. Russia, Colpoma junipericola from needles of Juniperus sabina, Entoloma cinnamomeum on soil in grasslands, Entoloma verae on soil in grasslands, Hyphodermella pallidostraminea on a dry dead branch of Actinidia sp., Lepiota sayanensis on litter in a mixed forest, Papiliotrema horticola from Malus communis, Paramacroventuria ribis (incl. Paramacroventuria gen. nov.) from leaves of Ribes aureum and Paramyrothecium lathyri from leaves of Lathyrus tuberosus. South Africa, Harzia combreti from leaf litter of Combretum collinum ssp. sulvense, Penicillium xyleborini from Xyleborinus saxesenii, Phaeoisaria dalbergiae from bark of Dalbergia armata, Protocreopsis euphorbiae from leaf litter of Euphorbia ingens and Roigiella syzygii from twigs of Syzygium chordatum. Spain, Genea zamorana on sandy soil, Gymnopus nigrescens on Scleropodium touretii, Hesperomyces parexochomi on Parexochomus quadriplagiatus, Paraphoma variabilis from dung, Phaeococcomyces kinklidomatophilus from a blackened metal railing of an industrial warehouse and Tuber suaveolens in soil under Quercus faginea. Svalbard and Jan Mayen, Inocybe nivea associated with Salix polaris. Thailand, Biscogniauxia whalleyi on corticated wood. UK, Parasitella quercicola from Quercus robur. USA, Aspergillus arizonicus from indoor air in a hospital, Caeliomyces tampanus (incl. Caeliomyces gen. nov.) from office dust, Cippumomyces mortalis (incl. Cippumomyces gen. nov.) from a tombstone, Cylindrium desperesense from air in a store, Tetracoccosporium pseudoaerium from air sample in house, Toxicocladosporium glendoranum from air in a brick room, Toxicocladosporium losalamitosense from air in a classroom, Valsonectria portsmouthensis from air in men's locker room and Varicosporellopsis americana from sludge in a water reservoir. Vietnam, Entoloma kovalenkoi on rotten wood, Fusarium chuoi inside seed of Musa itinerans, Micropsalliota albofelina on soil in tropical evergreen mixed forests and Phytophthora docyniae from soil and roots of Docynia indica. Morphological and culture characteristics are supported by DNA barcodes. Citation: Crous PW, Osieck ER, Jurjević Ž, et al. 2021. Fungal Planet description sheets: 1284-1382. Persoonia 47: 178-374. https://doi.org/10.3767/persoonia.2021.47.06.
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Affiliation(s)
- P W Crous
- Westerdijk Fungal Biodiversity Institute, P.O. Box 85167, 3508 AD Utrecht, The Netherlands
- Department of Biochemistry, Genetics and Microbiology, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria, South Africa
| | - E R Osieck
- Jkvr. C.M. van Asch van Wijcklaan 19, 3972 ST Driebergen-Rijsenburg, Netherlands
| | - Ž Jurjević
- EMSL Analytical, Inc., 200 Route 130 North, Cinnaminson, NJ 08077 USA
| | - J Boers
- Conventstraat 13A, 6701 GA Wageningen, Netherlands
| | - A L van Iperen
- Westerdijk Fungal Biodiversity Institute, P.O. Box 85167, 3508 AD Utrecht, The Netherlands
| | - M Starink-Willemse
- Westerdijk Fungal Biodiversity Institute, P.O. Box 85167, 3508 AD Utrecht, The Netherlands
| | - B Dima
- Department of Plant Anatomy, Institute of Biology, Eötvös Loránd University, Pázmány Péter sétány 1/C, H-1117, Budapest, Hungary
| | - S Balashov
- EMSL Analytical, Inc., 200 Route 130 North, Cinnaminson, NJ 08077 USA
| | - T S Bulgakov
- Department of Plant Protection, Federal Research Centre the Subtropical Scientific Centre of the Russian Academy of Sciences, Yana Fabritsiusa street 2/28, 354002 Sochi, Krasnodar region, Russia
| | - P R Johnston
- Manaaki Whenua - Landcare Research, P. Bag 92170, Auckland 1142, New Zealand
| | - O V Morozova
- Komarov Botanical Institute of the Russian Academy of Sciences, 197376, 2 Prof. Popov Str., Saint Petersburg, Russia
| | - U Pinruan
- Plant Microbe Interaction Research Team (APMT), BIOTEC, National Science and Technology Development Agency, Pathum Thani, Thailand, 113 Thailand Science Park, Phahonyothin Rd., Khlong Nueng, Khlong Luang, Pathum Thani Thailand
| | - S Sommai
- Plant Microbe Interaction Research Team (APMT), BIOTEC, National Science and Technology Development Agency, Pathum Thani, Thailand, 113 Thailand Science Park, Phahonyothin Rd., Khlong Nueng, Khlong Luang, Pathum Thani Thailand
| | - P Alvarado
- ALVALAB, C/ Dr. Fernando Bongera, Severo Ochoa bldg. S1.04, 33006 Oviedo, Spain
| | - C A Decock
- Mycothèque de l'Université catholique de Louvain (MUCL, BCCMTM), Earth and Life Institute - ELIM - Mycology, Université catholique de Louvain, Croix du Sud 2 bte L7.05.06, B-1348 Louvain-la-Neuve, Belgium
| | - T Lebel
- State Herbarium of South Australia, Adelaide, South Australia 5000 Australia
| | | | - G Moreno
- Universidad de Alcalá, Facultad de Ciencias, Departamento de Ciencias de la Vida (Botánica), 28805 Alcalá de Henares, Madrid, Spain
| | - R G Shivas
- Centre for Crop Health, University of Southern Queensland, Toowoomba 4350, Queensland, Australia
| | - L Zhao
- Westerdijk Fungal Biodiversity Institute, P.O. Box 85167, 3508 AD Utrecht, The Netherlands
| | - J Abdollahzadeh
- Department of Plant Protection, Agriculture Faculty, University of Kurdistan, P.O. Box 416, Sanandaj, Iran
| | - M Abrinbana
- Department of Plant Protection, Faculty of Agriculture, Urmia University, P.O. Box 165, Urmia, Iran
| | - D V Ageev
- LLC 'Signatec', 630090, Inzhenernaya Str. 22, Novosibirsk, Russia
| | - G Akhmetova
- Department of Plant Anatomy, Institute of Biology, Eötvös Loránd University, Pázmány Péter sétány 1/C, H-1117, Budapest, Hungary
| | - A V Alexandrova
- Lomonosov Moscow State University (MSU), 119234, 1, 12 Leninskie Gory Str., Moscow, Russia
| | - A Altés
- Universidad de Alcalá, Facultad de Ciencias, Departamento de Ciencias de la Vida (Botánica), 28805 Alcalá de Henares, Madrid, Spain
| | - A G G Amaral
- Departamento de Agronomia, Universidade Federal Rural de Pernambuco, Recife, Pernambuco, Brazil
| | - C Angelini
- Herbario Jardín Botánico Nacional Dr. Rafael Ma. Moscoso, Santo Domingo, Dominican Republic and Via Cappuccini, 78/8 - 33170 Pordenone, Italy
- Department of Botany, Moravian Museum, Zelný trh 6, 659 37 Brno, Czech Republic
| | - V Antonín
- Department of Botany, Moravian Museum, Zelný trh 6, 659 37 Brno, Czech Republic
| | - F Arenas
- Departamento de Biología Vegetal (Botánica), Facultad de Biología, Universidad de Murcia, 30100 Murcia, Spain
| | - P Asselman
- Research Group Mycology, Department of Biology, Ghent University, K.L. Ledeganckstraat 35, 9000 Gent, Belgium
| | - F Badali
- Department of Plant Protection, Faculty of Agriculture, Urmia University, P.O. Box 165, Urmia, Iran
| | - A Baghela
- National Fungal Culture Collection of India (NFCCI)
- Biodiversity and Palaeobiology Group, MACS-Agharkar Research Institute, G.G. Agarkar Road, Pune 411004, Maharashtra, India
| | - A Bañares
- Departamento de Botánica, Ecología y Fisiología Vegetal, Universidad de La Laguna. Apdo. 456, E-38200 La Laguna, Tenerife, Islas Canarias, Spain
| | - R W Barreto
- Departamento de Fitopatologia, Universidade Federal de Viçosa, Viçosa, 36570-900, MG, Brazil
| | - I G Baseia
- Departamento Botânica e Zoologia, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Campus Universitário, 59072-970 Natal, RN, Brazil
| | - J-M Bellanger
- CEFE, CNRS, Université de Montpellier, Université Paul-Valéry Montpellier 3, EPHE, IRD, INSERM, 1919 route de Mende, F-34293 Montpellier Cedex 5, France
| | - A Berraf-Tebbal
- Mendeleum - Institute of Genetics, Faculty of Horticulture, Mendel University in Brno, Valticka 334, Lednice, 69144, Czech Republic
| | - A Yu Biketova
- Institute of Biochemistry, Biological Research Centre of the Eötvös Lóránd Research Network, Temesvári blvd. 62, H-6726 Szeged, Hungary
- Jodrell Laboratory, Royal Botanic Gardens, Kew, Richmond, Surrey TW9 3DS, UK
| | - N V Bukharova
- Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far Eastern Branch of the Russian Academy of Sciences, Pr-t 100-let Vladivostoka 159, 690022 Vladivostok, Russia
| | - T I Burgess
- Phytophthora Science and Management, Harry Butler Institute, Murdoch University, 90 South Street, Murdoch, WA 6150, Australia
| | - J Cabero
- C/ El Sol 6, 49800 Toro, Zamora, Spain
| | - M P S Câmara
- Departamento de Agronomia, Universidade Federal Rural de Pernambuco, Recife, Pernambuco, Brazil
| | - J F Cano-Lira
- Mycology Unit, Medical School, Universitat Rovira i Virgili (URV), Sant Llorenç 21, 43201 Reus, Tarragona, Spain
| | - P Ceryngier
- Institute of Biological Sciences, Cardinal Stefan Wyszyński University, Wóycickiego 1/3, 01-938 Warsaw, Poland
| | - R Chávez
- Facultad de Química y Biología, Universidad de Santiago de Chile (USACH), Alameda 3363, Estación Central, 9170022, Santiago, Chile
| | - D A Cowan
- Centre for Microbial Ecology and Genomics, Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Private Bag X20, Hatfield 0028, Pretoria, South Africa
| | - A F de Lima
- Departamento de Agronomia, Universidade Federal Rural de Pernambuco, Recife, Pernambuco, Brazil
| | - R L Oliveira
- Programa de Pós-Graduação em Sistemática e Evolução, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Av. Senador Salgado Filho, 3000, 59072-970 Natal, RN, Brazil
| | - S Denman
- Forest Research, Alice Holt Lodge, Farnham, Surrey, UK
| | - Q N Dang
- Forest Protection Research Centre, Vietnamese Academy of Forest Sciences, 46 Duc Thang Ward, Bac Tu Liem District, Hanoi City, Vietnam
| | - F Dovana
- Via Quargnento, 17, 15029, Solero (AL), Italy
| | - I G Duarte
- Departamento de Agronomia, Universidade Federal Rural de Pernambuco, Recife, Pernambuco, Brazil
| | - A Eichmeier
- Mendeleum - Institute of Genetics, Faculty of Horticulture, Mendel University in Brno, Valticka 334, Lednice, 69144, Czech Republic
| | - A Erhard
- EMSL Analytical, Inc., 200 Route 130 North, Cinnaminson, NJ 08077 USA
| | - F Esteve-Raventós
- Universidad de Alcalá, Facultad de Ciencias, Departamento de Ciencias de la Vida (Botánica), 28805 Alcalá de Henares, Madrid, Spain
| | - A Fellin
- Via G. Canestrini 10/B, I-38028, Novella (TN), Italy
| | - G Ferisin
- Associazione Micologica Bassa Friulana, 33052 Cervignano del Friuli, Italy
| | - R J Ferreira
- Programa de Pós-Graduação em Biologia de Fungos, Departamento de Micologia, Universidade Federal de Pernambuco, 50670-420 Recife, PE, Brazil
| | - A Ferrer
- Facultad de Estudios Interdisciplinarios, Núcleo de Química y Bioquímica, Universidad Mayor, Santiago, Chile
| | - P Finy
- Zsombolyai u. 56, 8000 Székesfehérvár, Hungary
| | - E Gaya
- Comparative Fungal Biology, Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3DS, UK
| | - A D W Geering
- Centre for Horticultural Science, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Dutton Park 4102, Queensland, Australia
| | - C Gil-Durán
- Facultad de Química y Biología, Universidad de Santiago de Chile (USACH), Alameda 3363, Estación Central, 9170022, Santiago, Chile
| | - K Glässnerová
- Department of Botany, Faculty of Science, Charles University, Benátská 2, 128 01 Prague 2, Czech Republic
| | - A M Glushakova
- Lomonosov Moscow State University (MSU), 119234, 1, 12 Leninskie Gory Str., Moscow, Russia
- Mechnikov Research Institute for Vaccines and Sera, 105064, Moscow, Maly Kazenny by-street, 5A, Russia
| | - D Gramaje
- Instituto de Ciencias de la Vid y del Vino (ICVV), Consejo Superior de Investigaciones Científicas (CSIC) - Universidad de La Rioja - Gobierno de La Rioja, Ctra. LO-20, Salida 13, 26007, Logroño, Spain
| | | | - A L Guarnizo
- Departamento de Biología Vegetal (Botánica), Facultad de Biología, Universidad de Murcia, 30100 Murcia, Spain
| | - D Haelewaters
- Research Group Mycology, Department of Biology, Ghent University, K.L. Ledeganckstraat 35, 9000 Gent, Belgium
- Faculty of Science, University of South Bohemia, Branišovská 31, 370 05 České Budějovice, Czech Republic
| | - R E Halling
- Inst. Systematic Botany, New York Botanical Garden, 2900 Southern Blvd, Bronx, NY, USA 10458-5126
| | - R Hill
- Comparative Fungal Biology, Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3DS, UK
| | - Y Hirooka
- Department of Clinical Plant Science, Hosei University, 3-7-2 Kajino-cho, Koganei, Tokyo, Japan
| | - V Hubka
- Department of Botany, Faculty of Science, Charles University, Benátská 2, 128 01 Prague 2, Czech Republic
- Medical Mycology Research Center, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8673, Japan
| | - V A Iliushin
- Komarov Botanical Institute of the Russian Academy of Sciences, 197376, 2 Prof. Popov Str., Saint Petersburg, Russia
| | - D D Ivanova
- The Herzen State Pedagogical University of Russia, 191186, 48 Moyka Embankment, Saint Petersburg, Russia
| | - N E Ivanushkina
- All-Russian Collection of Microorganisms, G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Pushchino Center for Biological Research of the Russian Academy of Sciences, 142290, Pushchino, pr. Nauki, 5, Russia
| | - P Jangsantear
- Forest and Plant Conservation Research Office, Department of National Parks, Wildlife and Plant Conservation, Chatuchak District, Bangkok, Thailand
| | - A Justo
- Westerdijk Fungal Biodiversity Institute, P.O. Box 85167, 3508 AD Utrecht, The Netherlands
| | - A V Kachalkin
- Lomonosov Moscow State University (MSU), 119234, 1, 12 Leninskie Gory Str., Moscow, Russia
- All-Russian Collection of Microorganisms, G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Pushchino Center for Biological Research of the Russian Academy of Sciences, 142290, Pushchino, pr. Nauki, 5, Russia
| | - S Kato
- Department of Clinical Plant Science, Hosei University, 3-7-2 Kajino-cho, Koganei, Tokyo, Japan
| | - P Khamsuntorn
- Microbe Interaction and Ecology Laboratory (BMIE), National Center for Genetic Engineering and Biotechnology (BIOTEC), 113 Thailand Science Park, Phahonyothin Rd., Khlong Nueng, Khlong Luang, Pathum Thani Thailand
| | - I Y Kirtsideli
- Komarov Botanical Institute of the Russian Academy of Sciences, 197376, 2 Prof. Popov Str., Saint Petersburg, Russia
| | - D G Knapp
- Department of Plant Anatomy, Institute of Biology, Eötvös Loránd University, Pázmány Péter sétány 1/C, H-1117, Budapest, Hungary
| | - G A Kochkina
- All-Russian Collection of Microorganisms, G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Pushchino Center for Biological Research of the Russian Academy of Sciences, 142290, Pushchino, pr. Nauki, 5, Russia
| | - O Koukol
- Department of Botany, Charles University, Faculty of Science, Benátská 2, 128 01 Prague 2, Czech Republic
| | - G M Kovács
- Department of Plant Anatomy, Institute of Biology, Eötvös Loránd University, Pázmány Péter sétány 1/C, H-1117, Budapest, Hungary
| | - J Kruse
- Pfalzmuseum für Naturkunde - POLLICHIA-Museum, Hermann-Schäfer-Str. 17, 67098 Bad Dürkheim, Germany
| | - T K A Kumar
- Department of Botany, The Zamorin's Guruvayurappan College, Kozhikode, Kerala, India
| | - I Kušan
- Laboratory for Biological Diversity, Ruđer Bošković Institute, Bijenička cesta 54, HR-10000 Zagreb, Croatia
| | - T Læssøe
- Globe Inst./Department of Biology, University of Copenhagen, Universitetsparken 15, 2100 Copenhagen Ø, Denmark, Denmark
| | - E Larsson
- Biological and Environmental Sciences, University of Gothenburg, and Gothenburg Global Biodiversity Centre, Box 461, SE40530 Göteborg, Sweden
| | - R Lebeuf
- 775, rang du Rapide Nord, Saint-Casimir, Quebec, G0A 3L0, Canada
| | - G Levicán
- Facultad de Química y Biología, Universidad de Santiago de Chile (USACH), Alameda 3363, Estación Central, 9170022, Santiago, Chile
| | | | - P Marinho
- Departamento de Biologia Celular e Genética, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - J J Luangsa-Ard
- Plant Microbe Interaction Research Team (APMT), BIOTEC, National Science and Technology Development Agency, Pathum Thani, Thailand, 113 Thailand Science Park, Phahonyothin Rd., Khlong Nueng, Khlong Luang, Pathum Thani Thailand
| | - E G Lukina
- Saint Petersburg State University, 199034, 7-9 Universitetskaya emb., St. Petersburg, Russia
| | - V Magaña-Dueñas
- Mycology Unit, Medical School, Universitat Rovira i Virgili (URV), Sant Llorenç 21, 43201 Reus, Tarragona, Spain
| | | | - E F Malysheva
- Komarov Botanical Institute of the Russian Academy of Sciences, 197376, 2 Prof. Popov Str., Saint Petersburg, Russia
| | - V F Malysheva
- Komarov Botanical Institute of the Russian Academy of Sciences, 197376, 2 Prof. Popov Str., Saint Petersburg, Russia
| | - B Martín
- Servicio Territorial de Agricultura, Ganadería y Desarrollo Rural de Zamora, C/ Prado Tuerto 17, 49019 Zamora, Spain
| | - M P Martín
- Real Jardín Botánico RJB-CSIC, Plaza de Murillo 2, 28014 Madrid, Spain
| | - N Matočec
- Laboratory for Biological Diversity, Ruđer Bošković Institute, Bijenička cesta 54, HR-10000 Zagreb, Croatia
| | - A R McTaggart
- Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane 4001, Australia
| | - M Mehrabi-Koushki
- Department of Plant Protection, Faculty of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz, Khuzestan Province, Iran
- Biotechnology and Bioscience Research Center, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - A Mešić
- Laboratory for Biological Diversity, Ruđer Bošković Institute, Bijenička cesta 54, HR-10000 Zagreb, Croatia
| | - A N Miller
- University of Illinois Urbana-Champaign, Illinois Natural History Survey, 1816 South Oak Street, Champaign, Illinois, 61820, USA
| | - P Mironova
- Research Group Mycology, Department of Biology, Ghent University, K.L. Ledeganckstraat 35, 9000 Gent, Belgium
| | - P-A Moreau
- Université de Lille, Faculté de pharmacie de Lille, EA 4483, F-59000 Lille, France
| | - A Morte
- Departamento de Biología Vegetal (Botánica), Facultad de Biología, Universidad de Murcia, 30100 Murcia, Spain
| | - K Müller
- Falkstraße 103, D-47058 Duisburg, Germany
| | - L G Nagy
- Institute of Biochemistry, Biological Research Centre of the Eötvös Lóránd Research Network, Temesvári blvd. 62, H-6726 Szeged, Hungary
| | - S Nanu
- Department of Botany, The Zamorin's Guruvayurappan College, Kozhikode, Kerala, India
| | - A Navarro-Ródenas
- Departamento de Biología Vegetal (Botánica), Facultad de Biología, Universidad de Murcia, 30100 Murcia, Spain
| | - W J Nel
- Department of Biochemistry, Genetics and Microbiology, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria, South Africa
| | - T H Nguyen
- Forest Protection Research Centre, Vietnamese Academy of Forest Sciences, 46 Duc Thang Ward, Bac Tu Liem District, Hanoi City, Vietnam
| | - T F Nóbrega
- Departamento de Fitopatologia, Universidade Federal de Viçosa, Viçosa, 36570-900, MG, Brazil
| | - M E Noordeloos
- Naturalis Biodiversity Center, section Botany, P.O. Box 9517, 2300 RA Leiden, The Netherlands
| | - I Olariaga
- Rey Juan Carlos University, Dep. Biology and Geology, Physics and Inorganic Chemistry, C/ Tulipán s/n, 28933 Móstoles, Madrid, Spain
| | - B E Overton
- 205 East Campus Science Center, Lock Haven University, Department of Biology, Lock Haven, PA 17745, USA
| | - S M Ozerskaya
- All-Russian Collection of Microorganisms, G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Pushchino Center for Biological Research of the Russian Academy of Sciences, 142290, Pushchino, pr. Nauki, 5, Russia
| | - P Palani
- Centre for Advanced Studies in Botany, University of Madras, Guindy Campus, Chennai 600 025, India
| | - F Pancorbo
- Sociedad Micológica de Madrid, Real Jardín Botánico, C/ Claudio Moyano 1, 28014 Madrid, Spain
| | - V Papp
- Department of Botany, Hungarian University of Agriculture and Life Sciences, Ménesi út 44. H-1118 Budapest, Hungary
| | - J Pawłowska
- Institute of Evolutionary Biology, Faculty of Biology, Biological and Chemical Research Centre, University of Warsaw, ul. Zwirki i Wigury 101, 02-089 Warsaw, Poland
| | - T Q Pham
- Forest Protection Research Centre, Vietnamese Academy of Forest Sciences, 46 Duc Thang Ward, Bac Tu Liem District, Hanoi City, Vietnam
| | - C Phosri
- Biology programme, Faculty of Science, Nakhon Phanom University, Nakhon Phanom, 48000, Thailand
| | - E S Popov
- Komarov Botanical Institute of the Russian Academy of Sciences, 197376, 2 Prof. Popov Str., Saint Petersburg, Russia
| | - A Portugal
- Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, 3004-531 Coimbra, Portugal
- Fitolab - Laboratory for Phytopathology, Instituto Pedro Nunes, 3030-199 Coimbra, Portugal
| | - A Pošta
- Laboratory for Biological Diversity, Ruđer Bošković Institute, Bijenička cesta 54, HR-10000 Zagreb, Croatia
| | - K Reschke
- Mycology Research Group, Faculty of Biological Sciences, Goethe University Frankfurt am Main, Max-von-Laue Straße 13, 60439 Frankfurt am Main, Germany
| | - M Reul
- Ostenstraße 19, D-95615 Marktredwitz, Germany
| | - G M Ricci
- 205 East Campus Science Center, Lock Haven University, Department of Biology, Lock Haven, PA 17745, USA
| | - A Rodríguez
- Departamento de Biología Vegetal (Botánica), Facultad de Biología, Universidad de Murcia, 30100 Murcia, Spain
| | - J Romanowski
- Institute of Biological Sciences, Cardinal Stefan Wyszyński University, Wóycickiego 1/3, 01-938 Warsaw, Poland
| | - N Ruchikachorn
- The Institute for the Promotion of Teaching Science and Technology, Bangkok, 10110, Thailand
| | - I Saar
- Institute of Ecology and Earth Sciences, University of Tartu, Ravila Street 14A, 50411 Tartu, Estonia
| | - A Safi
- Department of Plant Protection, Faculty of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz, Khuzestan Province, Iran
| | - B Sakolrak
- Forest and Plant Conservation Research Office, Department of National Parks, Wildlife and Plant Conservation, Chatuchak District, Bangkok, Thailand
| | - F Salzmann
- Kloosterweg 5, 6301WK, Valkenburg a/d Geul, The Netherlands
| | - M Sandoval-Denis
- Westerdijk Fungal Biodiversity Institute, P.O. Box 85167, 3508 AD Utrecht, The Netherlands
| | - E Sangwichein
- Department of Biology, Faculty of Science, Ramkhamhaeng University, Bangkok, 10240, Thailand
| | - L Sanhueza
- Facultad de Estudios Interdisciplinarios, Núcleo de Química y Bioquímica, Universidad Mayor, Santiago, Chile
| | - T Sato
- Department of Agro-Food Science, Niigata Agro-Food University, 2416 Hiranedai, Tainai, Niigata Prefecture, Japan
| | - A Sastoque
- Mycology Unit, Medical School, Universitat Rovira i Virgili (URV), Sant Llorenç 21, 43201 Reus, Tarragona, Spain
| | - B Senn-Irlet
- Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland
| | - A Shibata
- Department of Clinical Plant Science, Hosei University, 3-7-2 Kajino-cho, Koganei, Tokyo, Japan
| | - K Siepe
- Geeste 133, D-46342 Velen, Germany
| | - S Somrithipol
- Plant Microbe Interaction Research Team (APMT), BIOTEC, National Science and Technology Development Agency, Pathum Thani, Thailand, 113 Thailand Science Park, Phahonyothin Rd., Khlong Nueng, Khlong Luang, Pathum Thani Thailand
| | - M Spetik
- Mendeleum - Institute of Genetics, Faculty of Horticulture, Mendel University in Brno, Valticka 334, Lednice, 69144, Czech Republic
| | - P Sridhar
- Centre for Advanced Studies in Botany, University of Madras, Guindy Campus, Chennai 600 025, India
| | - A M Stchigel
- Mycology Unit, Medical School, Universitat Rovira i Virgili (URV), Sant Llorenç 21, 43201 Reus, Tarragona, Spain
| | - K Stuskova
- Mendeleum - Institute of Genetics, Faculty of Horticulture, Mendel University in Brno, Valticka 334, Lednice, 69144, Czech Republic
| | - N Suwannasai
- Department of Microbiology, Faculty of Science, Srinakharinwirot University, Bangkok, 10110 Thailand
| | - Y P Tan
- Plant Pathology Herbarium, Department of Agriculture and Fisheries, Dutton Park 4102, Queensland, Australia
| | - R Thangavel
- Plant Health and Environment Laboratory, Ministry for Primary Industries, P.O. Box 2095, Auckland 1140, New Zealand
| | - I Tiago
- Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, 3004-531 Coimbra, Portugal
| | - S Tiwari
- National Fungal Culture Collection of India (NFCCI)
- Biodiversity and Palaeobiology Group, MACS-Agharkar Research Institute, G.G. Agarkar Road, Pune 411004, Maharashtra, India
| | - Z Tkalčec
- Laboratory for Biological Diversity, Ruđer Bošković Institute, Bijenička cesta 54, HR-10000 Zagreb, Croatia
| | - M A Tomashevskaya
- All-Russian Collection of Microorganisms, G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Pushchino Center for Biological Research of the Russian Academy of Sciences, 142290, Pushchino, pr. Nauki, 5, Russia
| | - C Tonegawa
- Department of Clinical Plant Science, Hosei University, 3-7-2 Kajino-cho, Koganei, Tokyo, Japan
| | - H X Tran
- Forest Protection Research Centre, Vietnamese Academy of Forest Sciences, 46 Duc Thang Ward, Bac Tu Liem District, Hanoi City, Vietnam
| | - N T Tran
- Centre for Horticultural Science, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Dutton Park 4102, Queensland, Australia
| | - J Trovão
- Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, 3004-531 Coimbra, Portugal
| | - V E Trubitsyn
- All-Russian Collection of Microorganisms, G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Pushchino Center for Biological Research of the Russian Academy of Sciences, 142290, Pushchino, pr. Nauki, 5, Russia
| | - J Van Wyk
- Department of Plant Soil and Microbial Sciences, 1066 Bogue Street, Michigan State University, East Lansing, MI, 48824 USA
| | - W A S Vieira
- Departamento de Agronomia, Universidade Federal Rural de Pernambuco, Recife, Pernambuco, Brazil
| | - J Vila
- Passatge del Torn, 4, 17800 Olot, Spain
| | - C M Visagie
- Department of Biochemistry, Genetics and Microbiology, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria, South Africa
| | - A Vizzini
- Department of Life Sciences and Systems Biology, University of Torino, Viale P.A. Mattioli 25, I-10125 Torino, Italy
| | - S V Volobuev
- Komarov Botanical Institute of the Russian Academy of Sciences, 197376, 2 Prof. Popov Str., Saint Petersburg, Russia
| | - D T Vu
- Research Planning and International Cooperation Department, Plant Resources Center, An Khanh, Hoai Duc, Hanoi 152900, Vietnam
| | - N Wangsawat
- Department of Biology, Faculty of Science, Srinakharinwirot University, Bangkok, 10110 Thailand
| | - T Yaguchi
- Medical Mycology Research Center, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8673, Japan
| | - E Ercole
- Via Murazzano 11, I-10141, Torino (TO), Italy
| | - B W Ferreira
- Departamento de Fitopatologia, Universidade Federal de Viçosa, Viçosa, 36570-900, MG, Brazil
| | - A P de Souza
- Laboratório de Microbiologia e Fitopatologia, Universidade Federal de Uberlândia, Monte Carmelo, 38500-000, MG, Brazil
| | - B S Vieira
- Laboratório de Microbiologia e Fitopatologia, Universidade Federal de Uberlândia, Monte Carmelo, 38500-000, MG, Brazil
| | - J Z Groenewald
- Westerdijk Fungal Biodiversity Institute, P.O. Box 85167, 3508 AD Utrecht, The Netherlands
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Haelewaters D, Peterson RA, Nevalainen H, Aime MC. Inopinatum lactosum gen. & comb. nov., the first yeast-like fungus in Leotiomycetes. Int J Syst Evol Microbiol 2021; 71. [PMID: 34214028 DOI: 10.1099/ijsem.0.004862] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Sporobolomyces lactosus is a pink yeast-like fungus that is not congeneric with other members of Sporobolomyces (Basidiomycota, Microbotryomycetes, Sporidiobolales). During our ongoing studies of pink yeasts we determined that S. lactosus was most closely related to Pseudeurotium zonatum (Ascomycota, Leotiomycetes, Thelebolales). A molecular phylogenetic analysis using sequences of the ITS region and the small and large subunit (SSU, LSU) rRNA genes, indicated that four isolates of S. lactosus, including three ex-type isolates, were placed in Thelebolales with maximum support. A new genus is proposed to accommodate S. lactosus, Inopinatum. This is the first pink yeast reported in Leotiomycetes.
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Affiliation(s)
- Danny Haelewaters
- Department of Botany and Plant Pathology, Purdue University, West Lafayette, Indiana 47907, USA
| | - Robyn A Peterson
- Department of Molecular Sciences, Macquarie University, Sydney, NSW 2109, Australia
| | - Helena Nevalainen
- Department of Molecular Sciences, Macquarie University, Sydney, NSW 2109, Australia
| | - M Catherine Aime
- Department of Botany and Plant Pathology, Purdue University, West Lafayette, Indiana 47907, USA
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Ding X, Lin S, Zhao R, Ye JR. First Report of Brown Spot Needle Blight on Pinus thunbergii Parl. Caused by Aureobasidium pullulans in China. PLANT DISEASE 2021; 105:4166. [PMID: 34129352 DOI: 10.1094/pdis-11-20-2435-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Pinus thunbergii Parl., known as black pine, is widely distributed all over China. This pine variety can prevent soil desertification and promote soil conservation and is excellent for constructing fast-growing forests and shelter belts. The timber of this species can be used for infrastructure construction and furniture production. In August 2020, needle blight symptoms were found on several trees of black pine in Sichuan Province, China. Further surveys showed that these symptoms are common while the disease incidence is less than 30% which indicated the severity of the disease is mild. The tips of old needles first turn grayish green and developed into brown bands ranging from 1 to 2 mm. To determine the pathogen, 20 needle samples with typical symptoms were disinfected with 75% alcohol, and sections of the tissue were cut from joints of diseased and healthy tissues (visually healthy) with a sterilized scalpel, surface sterilized for 45 seconds in 75% alcohol, soaked for 90 seconds in 1.5% NaCIO, rinsed in sterilized water and dried. Small cut tissues were placed on potato dextrose agar (PDA) at 25℃ for 10 days. Pure cultures were obtained by monosporic isolation. The colonies initially appeared white to cream, yeast-like, and later turned to pink and remained at least 10 days. Conidia were hyaline, smooth-walled, single-celled, and ellipsoidal with variable shape and size, 7.5 to 16 × 3.5 to 7 µm (Zalar et al. 2008). DNA was extracted from the mycelium of the isolate by the cetyltriethylammonium bromide (CTAB) method and amplified through polymerase chain reaction (PCR) with the internal transcribed spacer (ITS) region of rDNA and partial β-tubulin genes of a representative isolate (SC05) were amplified using the ITS1/ITS4 and Bt2a/Bt2b primer pairs, respectively(Wu et al. 2017). The sequences submitted to GenBank (Accession Nos. MW228368 for ITS and MW256762 for β-tubulin) showed high similarity with BLAST sequences of Aureobasidium pullulans (ITS, KR704881 [100%]; β-tubulin, MT671934 [99.49%]). For the pathogenicity test, a conidial suspension was prepared with a concentration of 2.0 × 107 conidia/ml. The suspension was sprayed onto 3 annual seedlings' needles, and the control was sprayed with sterile water. Inoculated and non-inoculated plants were kept in humid chambers in a glasshouse. After 10 days, typical symptoms appeared on inoculated needles, whereas control needles remained symptomless. The fungus, A. pullulans, was reisolated from those lesions, confirming Koch's postulates. No symptoms were observed on control plants. Aureobasidium pullulans, a ubiquitous saprophytic fungus on many fruits and very rarely reported to cause disease on pine needles. Only reported invasion of Ozone-injured needles in P. strobus (Costonis and Sinclair 1972) and needles damaged by acid rain in P. sylvestris (Ranta 1990). To our knowledge, this is the first report of brown spot needle blight on P. thunbergii caused by A. pullulans in China. The disease represents a threat to pine manufactures and more research on the pathogenesis and management is needed. .
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Affiliation(s)
- Xiaolei Ding
- Nanjing Forestry University, 74584, Nanjing, China;
| | - Sixi Lin
- College of Forestry, Nanjing Forestry University, Nanjing, China;
| | - Ruiwen Zhao
- College of Forestry, Nanjing Forestry University, Nanjing, China;
| | - Jian-Ren Ye
- Nanjing Forestry University, 74584, College of Forestry, 159 Longpan Road, Nanjing, China, 210037;
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Theisinger SM, de Smidt O, Lues JFR. Categorisation of culturable bioaerosols in a fruit juice manufacturing facility. PLoS One 2021; 16:e0242969. [PMID: 33882058 PMCID: PMC8059861 DOI: 10.1371/journal.pone.0242969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 11/12/2020] [Indexed: 11/18/2022] Open
Abstract
Bioaerosols are defined as aerosols that comprise particles of biological origin or activity that may affect living organisms through infectivity, allergenicity, toxicity, or through pharmacological or other processes. Interest in bioaerosol exposure has increased over the last few decades. Exposure to bioaerosols may cause three major problems in the food industry, namely: (i) contamination of food (spoilage); (ii) allergic reactions in individual consumers; or (iii) infection by means of pathogenic microorganisms present in the aerosol. The aim of this study was to characterise the culturable fraction of bioaerosols in the production environment of a fruit juice manufacturing facility and categorise isolates as harmful, innocuous or potentially beneficial to the industry, personnel and environment. Active sampling was used to collect representative samples of five areas in the facility during peak and off-peak seasons. Areas included the entrance, preparation and mixing area, between production lines, bottle dispersion and filling stations. Microbes were isolated and identified using 16S, 26S or ITS amplicon sequencing. High microbial counts and species diversity were detected in the facility. 239 bacteria, 41 yeasts and 43 moulds were isolated from the air in the production environment. Isolates were categorised into three main groups, namely 27 innocuous, 26 useful and 39 harmful bioaerosols. Harmful bioaerosols belonging to the genera Staphylococcus, Pseudomonas, Penicillium and Candida were present. Although innocuous and useful bioaerosols do not negatively influence human health their presence act as an indicator that an ideal environment exists for possible harmful bioaerosols to emerge.
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Affiliation(s)
- Shirleen M. Theisinger
- Centre for Applied Food Sustainability and Biotechnology (CAFSaB), Faculty of Health and Environmental Sciences, Central University of Technology, Free State, Bloemfontein, South Africa
| | - Olga de Smidt
- Centre for Applied Food Sustainability and Biotechnology (CAFSaB), Faculty of Health and Environmental Sciences, Central University of Technology, Free State, Bloemfontein, South Africa
| | - Jan F. R. Lues
- Centre for Applied Food Sustainability and Biotechnology (CAFSaB), Faculty of Health and Environmental Sciences, Central University of Technology, Free State, Bloemfontein, South Africa
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Kemler M, Wingfield M, Cowan D, Slippers B. Foliar fungi of the enigmatic desert plant Welwitschia mirabilis show little adaptation to their unique host plant. S AFR J SCI 2021. [DOI: 10.17159/sajs.2021/7666] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Foliar fungi, especially endophytic fungi, constitute an important part of the microbiome of plants. Yet little is known about the composition of these communities. In this study, we isolated fungi from leaf tissues of the desert plant Welwitschia mirabilis to determine the culturable diversity of the foliar fungal community. The isolated fungal taxa, which grouped into 17 distinct lineages, were identified by sequencing elongation factor 1 alpha, beta tubulin 1, beta tubulin 2 and the internal transcribed spacer region. The culturable community was mainly composed of cosmopolitan fungal genera despite the unique taxonomic position of the plant and its geographic isolation. To test for endemism in two of the common fungal genera, Alternaria and Aureobasidium, we built haplotype networks using a global data set. Even this broad data set showed little evidence for specialisation within this unique host or its geographical location. The data suggest that the culturable members of communities of leaf-associated fungi in habitats with little plant coverage, such as the Namib Desert, are mainly established by long-distance aerially distributed fungal inocula and few of these taxa co-evolve with the host within the habitat.
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Affiliation(s)
- Martin Kemler
- Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Pretoria, South Africa
- Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria, South Africa
- AG Geobotanik, Ruhr University Bochum, Bochum, Germany
| | - Michael Wingfield
- Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Pretoria, South Africa
- Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria, South Africa
| | - Don Cowan
- Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Pretoria, South Africa
- Centre for Microbial Ecology and Genomics, University of Pretoria, Pretoria, South Africa
| | - Bernard Slippers
- Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Pretoria, South Africa
- Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria, South Africa
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Genome Sequence of the Black Yeast-Like Strain Aureobasidium pullulans var. aubasidani CBS 100524. Microbiol Resour Announc 2021; 10:10/12/e01293-20. [PMID: 33766907 PMCID: PMC7996466 DOI: 10.1128/mra.01293-20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
In this work, we present the whole-genome sequence and the complete mitochondrial sequence of the black yeast-like strain Aureobasidium pullulans var. aubasidani CBS 100524, which produces the exopolysaccharide aubasidan and was previously isolated from Betula sp. slime flux from the Leningrad Region of Russia.
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Diversity and N 2O Production Potential of Fungi in an Oceanic Oxygen Minimum Zone. J Fungi (Basel) 2021; 7:jof7030218. [PMID: 33802893 PMCID: PMC8002691 DOI: 10.3390/jof7030218] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/12/2021] [Accepted: 03/15/2021] [Indexed: 12/20/2022] Open
Abstract
Fungi in terrestrial environments are known to play a key role in carbon and nitrogen biogeochemistry and exhibit high diversity. In contrast, the diversity and function of fungi in the ocean has remained underexplored and largely neglected. In the eastern tropical North Pacific oxygen minimum zone, we examined the fungal diversity by sequencing the internal transcribed spacer region 2 (ITS2) and mining a metagenome dataset collected from the same region. Additionally, we coupled 15N-tracer experiments with a selective inhibition method to determine the potential contribution of marine fungi to nitrous oxide (N2O) production. Fungal communities evaluated by ITS2 sequencing were dominated by the phyla Basidiomycota and Ascomycota at most depths. However, the metagenome dataset showed that about one third of the fungal community belong to early-diverging phyla. Fungal N2O production rates peaked at the oxic–anoxic interface of the water column, and when integrated from the oxycline to the top of the anoxic depths, fungi accounted for 18–22% of total N2O production. Our findings highlight the limitation of ITS-based methods typically used to investigate terrestrial fungal diversity and indicate that fungi may play an active role in marine nitrogen cycling.
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Fresno DH, Munné-Bosch S. Differential Tissue-Specific Jasmonic Acid, Salicylic Acid, and Abscisic Acid Dynamics in Sweet Cherry Development and Their Implications in Fruit-Microbe Interactions. FRONTIERS IN PLANT SCIENCE 2021; 12:640601. [PMID: 33603766 PMCID: PMC7884454 DOI: 10.3389/fpls.2021.640601] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 01/12/2021] [Indexed: 05/31/2023]
Abstract
Sweet cherry is an important non-climacteric fruit with a high commercial interest, but exploitation of sweet cherry trees (Prunus avium L.) in orchards is usually subject to important economic losses due to fruit decay by pathogenic fungi and other microorganisms. Sweet cherries development and ripening are characterized by profound physiological changes in the fruit, among which the phytohormone abscisic acid (ABA) plays a pivotal role. In addition, sweet cherries are usually affected by fruit decay pathogens, and the role of other stress-related hormones such as jasmonic acid (JA) and salicylic acid (SA) may also be of paramount importance, not only from a developmental point of view, but also from a fruit-microbe interaction perspective. Here, a tissue-specific hormone quantification by LC-MS/MS, including the contents of JA, SA, and ABA, in the fruit exocarp and mesocarp of sweet cherries during fruit development from trees growing in a commercial orchard was carried out. Additionally, this study was complemented with the characterization of the culturable epiphytic and endophytic microbial communities of sweet cherries at various stages of fruit development and during cracking lesion formation. Our results revealed a completely differential behavior of phytohormones between both tissues (the exocarp and mesocarp), with a more dynamic exocarp in front of a more stable mesocarp, and with marked variations during fruit development. Microbial epiphytic community was mainly composed by yeasts, although rot-causing fungi like Alternaria spp. were always also present throughout fruit development. Endophytic colonization was poor, but it increased throughout fruit development. Furthermore, when the exocarp was naturally disrupted in sweet cherries suffering from cracking, the colonization by Alternaria spp. markedly increased. Altogether, results suggest that the fruit exocarp and mesocarp are very dynamic tissues in which endogenous phytohormones not only modulate fruit development and ripening but also fruit-microbe interactions.
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Affiliation(s)
- David H. Fresno
- Department of Evolutionary Biology, Ecology and Environmental Sciences, University of Barcelona, Barcelona, Spain
- Institute of Nutrition and Food Safety (INSA), University of Barcelona, Barcelona, Spain
| | - Sergi Munné-Bosch
- Department of Evolutionary Biology, Ecology and Environmental Sciences, University of Barcelona, Barcelona, Spain
- Institute of Nutrition and Food Safety (INSA), University of Barcelona, Barcelona, Spain
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46
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Jakovljević VD. An overview of antioxidant capacity, total phenolics, and amino acids of
Aureobasidium pullulans
GM6. J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.15227] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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47
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Jiang N, Fan X, Tian C. Identification and Characterization of Leaf-Inhabiting Fungi from Castanea Plantations in China. J Fungi (Basel) 2021; 7:jof7010064. [PMID: 33477575 PMCID: PMC7831338 DOI: 10.3390/jof7010064] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 01/12/2021] [Accepted: 01/15/2021] [Indexed: 01/15/2023] Open
Abstract
Two Castanea plant species, C. henryi and C. mollissima, are cultivated in China to produce chestnut crops. Leaf spot diseases commonly occur in Castanea plantations, however, little is known about the fungal species associated with chestnut leaf spots. In this study, leaf samples of C. henryi and C. mollissima were collected from Beijing, Guizhou, Hunan, Sichuan and Yunnan Provinces, and leaf-inhabiting fungi were identified based on morphology and phylogeny. As a result, twenty-six fungal species were confirmed, including one new family, one new genus, and five new species. The new taxa are Pyrisporaceae fam. nov., Pyrispora gen. nov., Aureobasidium castaneae sp. nov., Discosia castaneae sp. nov., Monochaetia castaneae sp. nov., Neopestalotiopsis sichuanensis sp. nov. and Pyrispora castaneae sp. nov.
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48
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Katsoula A, Vasileiadis S, Sapountzi M, Karpouzas DG. The response of soil and phyllosphere microbial communities to repeated application of the fungicide iprodione: accelerated biodegradation or toxicity? FEMS Microbiol Ecol 2020; 96:5813261. [PMID: 32221586 DOI: 10.1093/femsec/fiaa056] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 03/23/2020] [Indexed: 12/30/2022] Open
Abstract
Pesticides interact with microorganisms in various ways with the outcome being negative or positive for the soil microbiota. Pesticides' effects on soil microorganisms have been studied extensively in soil but not in other pesticides-exposed microbial habitats like the phyllosphere. We tested the hypothesis that soil and phyllosphere support distinct microbial communities, but exhibit a similar response (accelerated biodegradation or toxicity) to repeated exposure to the fungicide iprodione. Pepper plants received four repeated foliage or soil applications of iprodione, which accelerated its degradation in soil (DT50_1st = 1.23 and DT50_4th = 0.48 days) and on plant leaves (DT50_1st > 365 and DT50_4th = 5.95 days). The composition of the epiphytic and soil bacterial and fungal communities, determined by amplicon sequencing, was significantly altered by iprodione. The archaeal epiphytic and soil communities responded differently; the former showed no response to iprodione. Three iprodione-degrading Paenarthrobacter strains were isolated from soil and phyllosphere. They hydrolyzed iprodione to 3,5-dichloraniline via the formation of 3,5-dichlorophenyl-carboxiamide and 3,5-dichlorophenylurea-acetate, a pathway shared by other soil-derived arthrobacters implying a phylogenetic specialization in iprodione biotransformation. Our results suggest that iprodione-repeated application could affect soil and epiphytic microbial communities with implications for the homeostasis of the plant-soil system and agricultural production.
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Affiliation(s)
- A Katsoula
- Laboratory of Plant and Environmental Biotechnology, Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis 41500, Larissa, Greece
| | - S Vasileiadis
- Laboratory of Plant and Environmental Biotechnology, Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis 41500, Larissa, Greece
| | - M Sapountzi
- Laboratory of Plant and Environmental Biotechnology, Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis 41500, Larissa, Greece
| | - Dimitrios G Karpouzas
- Laboratory of Plant and Environmental Biotechnology, Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis 41500, Larissa, Greece
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Al-Araimi SH, Elshafie A, Al-Bahry SN, Al-Wahaibi YM, Al-Bemani AS. Biopolymer production by Aureobasidium mangrovei SARA-138H and its potential for oil recovery enhancement. Appl Microbiol Biotechnol 2020; 105:105-117. [PMID: 33215258 DOI: 10.1007/s00253-020-11015-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 11/02/2020] [Accepted: 11/09/2020] [Indexed: 11/28/2022]
Abstract
The world economy depends heavily on crude oil. With a conventional oil recovery process, only one-third of crude oil is extracted. Various technologies have been developed to maximize the recovery of oil resources from natural reservoirs. Polymer technology has been used in many oil fields around the world. The biopolymer pullulan, produced by some Aureobasidium species, has been used in many industrial applications, but no research has been conducted regarding its use in the microbial enhancement of oil recovery (MEOR). Here, we investigate the potential of pullulan produced by newly isolated species Aureobasidium mangrovei SARA-138H for enhancement of oil recovery. Our results indicate that under optimized conditions, that is, sucrose as the carbon source in the medium, a pH of 9, incubation at 25 °C, and 250 rpm agitation, the fungus was able to produce 10 g/L of pullulan. The maximum viscosity achieved under these conditions was 318 cP after 15 days of incubation. Pullulan solution (10 g/L) showed the ability to recover 36.7% of heavy crude oil after 34.2% of secondary oil recovery. However, diluted pullulan in brine at the ratio (1:1) resulted in the recovery of 20.23% of oil from the residual oil in the core after 22.6% of secondary oil recovery. A 20-day injectivity test revealed that pullulan passed smoothly through the core, causing no blockage. It was concluded that pullulan from A. mangrovei SARA-138H was able to increase oil recovery to a degree comparable to that achieved with many polymers used in oil fields around the world. KEY POINTS: • First report of biopolymer "pullulan" from A. mangrovie. • Optimum conditions for pullulan production were obtained. • Pullulan recovered 36.7% of heavy oil from residual oil in place, with good injectivity.
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Affiliation(s)
- Sara H Al-Araimi
- Department of Biology, College of Science, Sultan Qaboos University, Muscat, Oman.
| | - Abdulkadir Elshafie
- Department of Biology, College of Science, Sultan Qaboos University, Muscat, Oman
| | - Saif N Al-Bahry
- Department of Biology, College of Science, Sultan Qaboos University, Muscat, Oman
| | - Yahya M Al-Wahaibi
- Department of Petroleum and Chemical Engineering, College of Engineering, Sultan Qaboos University, Muscat, Oman
| | - Ali S Al-Bemani
- Department of Petroleum and Chemical Engineering, College of Engineering, Sultan Qaboos University, Muscat, Oman
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Di Francesco A, Zajc J, Gunde-Cimerman N, Aprea E, Gasperi F, Placì N, Caruso F, Baraldi E. Bioactivity of volatile organic compounds by Aureobasidium species against gray mold of tomato and table grape. World J Microbiol Biotechnol 2020; 36:171. [PMID: 33067644 PMCID: PMC7567711 DOI: 10.1007/s11274-020-02947-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 10/08/2020] [Indexed: 11/24/2022]
Abstract
Aureobasidium strains isolated from diverse unconventional environments belonging to the species A. pullulans, A. melanogenum, and A. subglaciale were evaluated for Volatile Organic Compounds (VOCs) production as a part of their modes of action against Botrytis cinerea of tomato and table grape. By in vitro assay, VOCs generated by the antagonists belonging to the species A. subglaciale showed the highest inhibition percentage of the pathogen mycelial growth (65.4%). In vivo tests were conducted with tomatoes and grapes artificially inoculated with B. cinerea conidial suspension, and exposed to VOCs emitted by the most efficient antagonists of each species (AP1, AM10, AS14) showing that VOCs of AP1 (A. pullulans) reduced the incidence by 67%, partially confirmed by the in vitro results. Conversely, on table grape, VOCs produced by all the strains did not control the fungal incidence but were only reducing the infection severity (< 44.4% by A. pullulans; < 30.5% by A. melanogenum, and A. subglaciale). Solid-phase microextraction (SPME) and subsequent gas chromatography coupled to mass spectrometry identified ethanol, 3-methyl-1-butanol, 2-methyl-1-propanol as the most produced VOCs. However, there were differences in the amounts of produced VOCs as well as in their repertoire. The EC50 values of VOCs for reduction of mycelial growth of B. cinerea uncovered 3-methyl-1-butanol as the most effective compound. The study demonstrated that the production and the efficacy of VOCs by Aureobasidium could be directly related to the specific species and pathosystem and uncovers new possibilities for searching more efficient VOCs producing strains in unconventional habitats other than plants.
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Affiliation(s)
- A Di Francesco
- CRIOF-Department of Agricultural Sciences, University of Bologna, Via Gandolfi, 19, 40057, Cadriano, Bologna, Italy.
- Department of Agricultural and Food Sciences, University of Bologna, Viale Fanin, 42, 40127, Bologna, Italy.
| | - J Zajc
- Plant Protection Department, Agricultural Institute of Slovenia, Hacquetova ulica 17, 1000, Ljubljana, Slovenia
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000, Ljubljana, Slovenia
| | - N Gunde-Cimerman
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000, Ljubljana, Slovenia
| | - E Aprea
- Center Agriculture Food Environment, University of Trento/Fondazione Edmund Mach, 38010, San Michele all'Adige, TN, Italy
- Research and Innovation Centre, Fondazione Edmund Mach, via Mach 1, 38010, San Michele all' Adige, Trento, Italy
| | - F Gasperi
- Center Agriculture Food Environment, University of Trento/Fondazione Edmund Mach, 38010, San Michele all'Adige, TN, Italy
- Research and Innovation Centre, Fondazione Edmund Mach, via Mach 1, 38010, San Michele all' Adige, Trento, Italy
| | - N Placì
- Department of Agricultural and Food Sciences, University of Bologna, Viale Fanin, 42, 40127, Bologna, Italy
| | - F Caruso
- Department of Agricultural and Food Sciences, University of Bologna, Viale Fanin, 42, 40127, Bologna, Italy
| | - E Baraldi
- CRIOF-Department of Agricultural Sciences, University of Bologna, Via Gandolfi, 19, 40057, Cadriano, Bologna, Italy
- Department of Agricultural and Food Sciences, University of Bologna, Viale Fanin, 42, 40127, Bologna, Italy
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