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10-ELS-OXF Kurtzman1610423 CH002 7..20
Part II Importance of Yeasts Kurtzman 978-0-444-52149-1 00002 Kurtzman 978-0-444-52149-1 00002 Chapter 2 c0002 Yeasts Pathogenic to Humans Chester R. Cooper, Jr. regularly encounter the organisms described below. In fact, many s0010 1. INTRODUCTION TO THE MEDICALLY medical mycologists spend entire careers without direct clinical expo- IMPORTANT YEASTS sure to many of these fungi. Rather, the purpose of this review is to enlighten the non-medical mycologist as to the diversity of yeast and p0010 Prior to global emergence of the human immunodeficiency virus mold species regularly associated with human and animal disease (HIV), which is the causative agent of acquired immunodeficiency that also, at least in part, present a unicellular mode of growth in vivo. syndrome (AIDS), approximately 200 fungal pathogens were recog- The following descriptions present a concise overview of the key p0025 nized from among the more than 100,000 then-known fungal spe- biological and clinical features of these fungi. Where appropriate, refer- cies (Kwon-Chung and Bennett 1992, Rippon 1988). About 50 of ences to recent reviews of particular disease agents and their patholo- these species were regularly associated with fungal disease (myco- gies are provided. For a global perspective of fungal diseases, including sis). Since then, there has been a concurrent dramatic increase in in-depth clinical discussions of specific pathologies, diagnoses, and both the number of known fungal species and the incidence of treatments, the reader is referred to several outstanding and recently mycoses that they cause. Moreover, the spectrum of pathogenic fungi published texts (Anaissie et al. -
Phylogeny of the Genus Arachnomyces and Its Anamorphs and the Establishment of Arachnomycetales, a New Eurotiomycete Order in the Ascomycota
STUDIES IN MYCOLOGY 47: 131-139, 2002 Phylogeny of the genus Arachnomyces and its anamorphs and the establishment of Arachnomycetales, a new eurotiomycete order in the Ascomycota 1, 2 1* 3 2 C. F. C. Gibas , L. Sigler , R. C. Summerbell and R. S. Currah 1University of Alberta Microfungus Collection and Herbarium, Edmonton, Alberta, Canada; 2Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada; 3Centraalbureau voor Schimmelcultures, Utrecht, The Netherlands Abstract: Arachnomyces is a genus of cleistothecial ascomycetes that has morphological similarities to the Onygenaceae and the Gymnoascaceae but is not accommodated well in either taxon. The phylogeny of the genus and its related anamorphs was studied using nuclear SSU rDNA gene sequences. Partial sequences were determined from ex-type cultures representing A. minimus, A. nodosetosus (anamorph Onychocola canadensis), A. kanei (anamorph O. kanei) and A. gracilis (anamorph Malbranchea sp.) and aligned together with published sequences of onygenalean and other ascomycetes. Phylogenetic analysis based on maximum parsimony showed that Arachnomyces is monophyletic, that it includes the hyphomycete Malbranchea sclerotica, and it forms a distinct lineage within the Eurotiomycetes. Based on molecular and morphological data, we propose the new order Arachnomycetales and a new family Arachnomycetaceae. All known anamorphs in this lineage are arthroconidial and have been placed either in Onychocola (A. nodosetosus, A. kanei) or in Malbranchea (A. gracilis). Onychocola is considered appropriate for disposition of the arthroconidial states of Arachnomyces and thus Malbranchea sclerotica and the unnamed anamorph of A. gracilis are redisposed as Onychocola sclerotica comb. nov. and O. gracilis sp. nov. Keywords: Eurotiomycetes, Arachnomycetales, Arachnomycetaceae, Arachnomyces, Onychocola, Malbranchea sclerotica, SSU rDNA, Ascomycota, phylogeny Introduction described from herbivore dung maintained in damp chambers (Singh & Mukerji, 1978; Mukerji, pers. -
The Ascomycota
Papers and Proceedings of the Royal Society of Tasmania, Volume 139, 2005 49 A PRELIMINARY CENSUS OF THE MACROFUNGI OF MT WELLINGTON, TASMANIA – THE ASCOMYCOTA by Genevieve M. Gates and David A. Ratkowsky (with one appendix) Gates, G. M. & Ratkowsky, D. A. 2005 (16:xii): A preliminary census of the macrofungi of Mt Wellington, Tasmania – the Ascomycota. Papers and Proceedings of the Royal Society of Tasmania 139: 49–52. ISSN 0080-4703. School of Plant Science, University of Tasmania, Private Bag 55, Hobart, Tasmania 7001, Australia (GMG*); School of Agricultural Science, University of Tasmania, Private Bag 54, Hobart, Tasmania 7001, Australia (DAR). *Author for correspondence. This work continues the process of documenting the macrofungi of Mt Wellington. Two earlier publications were concerned with the gilled and non-gilled Basidiomycota, respectively, excluding the sequestrate species. The present work deals with the non-sequestrate Ascomycota, of which 42 species were found on Mt Wellington. Key Words: Macrofungi, Mt Wellington (Tasmania), Ascomycota, cup fungi, disc fungi. INTRODUCTION For the purposes of this survey, all Ascomycota having a conspicuous fruiting body were considered, excluding Two earlier papers in the preliminary documentation of the endophytes. Material collected during forays was described macrofungi of Mt Wellington, Tasmania, were confined macroscopically shortly after collection, and examined to the ‘agarics’ (gilled fungi) and the non-gilled species, microscopically to obtain details such as the size of the -
Keratinases and Microbial Degradation of Keratin
Available online a t www.pelagiaresearchlibrary.com Pelagia Research Library Advances in Applied Science Research, 2015, 6(2):74-82 ISSN: 0976-8610 CODEN (USA): AASRFC Keratinases and microbial degradation of Keratin Itisha Singh 1 and R. K. S. Kushwaha 2 1Department of Microbiology, Saaii College of Medical Sciences and Technology, Chaubepur, Kanpur 2Shri Shakti College, Harbaspur, Ghatampur, Kanpur ______________________________________________________________________________________________ ABSTRACT The present review deals with fungal keratinases including that of dermatophytes. Bacterial keratinases were also included. Temperature and substrate relationship keratinase production has also been discussed. Keratin degradation and industrial involvement of keratinase producing fungi is also reviewed. Key words : Keratinase, keratin, degradation, fungi. ______________________________________________________________________________________________ INTRODUCTION Keratin is an insoluble macromolecule requiring the secretion of extra cellular enzymes for biodegradation to occur. Keratin comprises long polypeptide chains, which are resistant to the activity of non-substrate-specific proteases. Adjacent chains are linked by disulphide bonds thought responsible for the stability and resistance to degradation of keratin (Safranek and Goos, 1982). The degradation of keratinous material is important medically and agriculturally (Shih, 1993; Matsumoto, 1996). Secretion of keratinolytic enzymes is associated with dermatophytic fungi, for which keratin -
Turning on Virulence: Mechanisms That Underpin the Morphologic Transition and Pathogenicity of Blastomyces
Virulence ISSN: 2150-5594 (Print) 2150-5608 (Online) Journal homepage: http://www.tandfonline.com/loi/kvir20 Turning on Virulence: Mechanisms that underpin the Morphologic Transition and Pathogenicity of Blastomyces Joseph A. McBride, Gregory M. Gauthier & Bruce S. Klein To cite this article: Joseph A. McBride, Gregory M. Gauthier & Bruce S. Klein (2018): Turning on Virulence: Mechanisms that underpin the Morphologic Transition and Pathogenicity of Blastomyces, Virulence, DOI: 10.1080/21505594.2018.1449506 To link to this article: https://doi.org/10.1080/21505594.2018.1449506 © 2018 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group© Joseph A. McBride, Gregory M. Gauthier and Bruce S. Klein Accepted author version posted online: 13 Mar 2018. Submit your article to this journal Article views: 15 View related articles View Crossmark data Full Terms & Conditions of access and use can be found at http://www.tandfonline.com/action/journalInformation?journalCode=kvir20 Publisher: Taylor & Francis Journal: Virulence DOI: https://doi.org/10.1080/21505594.2018.1449506 Turning on Virulence: Mechanisms that underpin the Morphologic Transition and Pathogenicity of Blastomyces Joseph A. McBride, MDa,b,d, Gregory M. Gauthier, MDa,d, and Bruce S. Klein, MDa,b,c a Division of Infectious Disease, Department of Medicine, University of Wisconsin School of Medicine and Public Health, 600 Highland Avenue, Madison, WI 53792, USA; b Division of Infectious Disease, Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, 1675 Highland Avenue, Madison, WI 53792, USA; c Department of Medical Microbiology and Immunology, University of Wisconsin School of Medicine and Public Health, 1550 Linden Drive, Madison, WI 53706, USA. -
Morinagadepsin, a Depsipeptide from the Fungus Morinagamyces Vermicularis Gen. Et Comb. Nov
microorganisms Article Morinagadepsin, a Depsipeptide from the Fungus Morinagamyces vermicularis gen. et comb. nov. Karen Harms 1,2 , Frank Surup 1,2,* , Marc Stadler 1,2 , Alberto Miguel Stchigel 3 and Yasmina Marin-Felix 1,* 1 Department Microbial Drugs, Helmholtz Centre for Infection Research, Inhoffenstrasse 7, 38124 Braunschweig, Germany; [email protected] (K.H.); [email protected] (M.S.) 2 Institute of Microbiology, Technische Universität Braunschweig, Spielmannstrasse 7, 38106 Braunschweig, Germany 3 Mycology Unit, Medical School and IISPV, Universitat Rovira i Virgili, C/ Sant Llorenç 21, 43201 Reus, Tarragona, Spain; [email protected] * Correspondence: [email protected] (F.S.); [email protected] (Y.M.-F.) Abstract: The new genus Morinagamyces is introduced herein to accommodate the fungus Apiosordaria vermicularis as inferred from a phylogenetic study based on sequences of the internal transcribed spacer region (ITS), the nuclear rDNA large subunit (LSU), and partial fragments of ribosomal polymerase II subunit 2 (rpb2) and β-tubulin (tub2) genes. Morinagamyces vermicularis was analyzed for the production of secondary metabolites, resulting in the isolation of a new depsipeptide named morinagadepsin (1), and the already known chaetone B (3). While the planar structure of 1 was elucidated by extensive 1D- and 2D-NMR analysis and high-resolution mass spectrometry, the absolute configuration of the building blocks Ala, Val, and Leu was determined as -L by Marfey’s method. The configuration of the 3-hydroxy-2-methyldecanyl unit was assigned as 22R,23R by Citation: Harms, K.; Surup, F.; Stadler, M.; Stchigel, A.M.; J-based configuration analysis and Mosher’s method after partial hydrolysis of the morinagadepsin Marin-Felix, Y. -
The Evolution of Secondary Metabolism Regulation and Pathways in the Aspergillus Genus
THE EVOLUTION OF SECONDARY METABOLISM REGULATION AND PATHWAYS IN THE ASPERGILLUS GENUS By Abigail Lind Dissertation Submitted to the Faculty of the Graduate School of Vanderbilt University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY in Biomedical Informatics August 11, 2017 Nashville, Tennessee Approved: Antonis Rokas, Ph.D. Tony Capra, Ph.D. Patrick Abbot, Ph.D. Louise Rollins-Smith, Ph.D. Qi Liu, Ph.D. ACKNOWLEDGEMENTS Many people helped and encouraged me during my years working towards this dissertation. First, I want to thank my advisor, Antonis Rokas, for his support for the past five years. His consistent optimism encouraged me to overcome obstacles, and his scientific insight helped me place my work in a broader scientific context. My committee members, Patrick Abbot, Tony Capra, Louise Rollins-Smith, and Qi Liu have also provided support and encouragement. I have been lucky to work with great people in the Rokas lab who helped me develop ideas, suggested new approaches to problems, and provided constant support. In particular, I want to thank Jen Wisecaver for her mentorship, brilliant suggestions on how to visualize and present my work, and for always being available to talk about science. I also want to thank Xiaofan Zhou for always providing a new perspective on solving a problem. Much of my research at Vanderbilt was only possible with the help of great collaborators. I have had the privilege of working with many great labs, and I want to thank Ana Calvo, Nancy Keller, Gustavo Goldman, Fernando Rodrigues, and members of all of their labs for making the research in my dissertation possible. -
Ascocarp Development in Anthracobia Melaloma
AN ABSTRACT OF THE THESIS OF HAROLD JULIUS LARSEN, JR. for the MASTER OF ARTS (Name) (Degree) in BOTANY presented on it (Major) (Date) Title: ASCOCA.RP DEVELOPMENT IN ANTHRACOBIA MELALOMA. Abstract approved:Redacted for privacy William C. Denison Cultural and developmental characteristics of a collection of Anthracobia melaloma with a brown hymeniurn and a barred exterior appearance were examined.It grows well in culture on CM and CMMY agar media and has a growth rate of 17 mm in 18 hours.It is heterothallic and produces asexual rnultinucleate arthrospores after incubation at 300C or above for several days in succession.These arthrospores germinate readily after transfer to fresh media. Antheridial hyphae and archicarps are produced by both mating types although the negative mating type isolates producemore abun- dant archicarps.Antheridia are indistinguishable from vegetative hyphae until just prior to plasmogamy when they become swollen. Septal pads arise on the septa separating the cells of the trichogyne and ascogonium subsequent to plasmogamy and persist throughout development. The paraphyses, the ectal and medullary excipulum, and the excipular hairs are all derived from the sheathing hyphae. Ascogenous hyphae and asci are derived from the largest cells of the ascogonium. A haploid chromosome number of four is confirmed for the species. Exposure to fluorescent light was unnecessary for apothecial induction, but did enhance apothecial maturation and the production of hyrnenial carotenoid pigments.Constant exposure to light inhibited -
Preliminary Classification of Leotiomycetes
Mycosphere 10(1): 310–489 (2019) www.mycosphere.org ISSN 2077 7019 Article Doi 10.5943/mycosphere/10/1/7 Preliminary classification of Leotiomycetes Ekanayaka AH1,2, Hyde KD1,2, Gentekaki E2,3, McKenzie EHC4, Zhao Q1,*, Bulgakov TS5, Camporesi E6,7 1Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China 2Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand 3School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand 4Landcare Research Manaaki Whenua, Private Bag 92170, Auckland, New Zealand 5Russian Research Institute of Floriculture and Subtropical Crops, 2/28 Yana Fabritsiusa Street, Sochi 354002, Krasnodar region, Russia 6A.M.B. Gruppo Micologico Forlivese “Antonio Cicognani”, Via Roma 18, Forlì, Italy. 7A.M.B. Circolo Micologico “Giovanni Carini”, C.P. 314 Brescia, Italy. Ekanayaka AH, Hyde KD, Gentekaki E, McKenzie EHC, Zhao Q, Bulgakov TS, Camporesi E 2019 – Preliminary classification of Leotiomycetes. Mycosphere 10(1), 310–489, Doi 10.5943/mycosphere/10/1/7 Abstract Leotiomycetes is regarded as the inoperculate class of discomycetes within the phylum Ascomycota. Taxa are mainly characterized by asci with a simple pore blueing in Melzer’s reagent, although some taxa have lost this character. The monophyly of this class has been verified in several recent molecular studies. However, circumscription of the orders, families and generic level delimitation are still unsettled. This paper provides a modified backbone tree for the class Leotiomycetes based on phylogenetic analysis of combined ITS, LSU, SSU, TEF, and RPB2 loci. In the phylogenetic analysis, Leotiomycetes separates into 19 clades, which can be recognized as orders and order-level clades. -
Severe Chromoblastomycosis-Like Cutaneous Infection Caused by Chrysosporium Keratinophilum
fmicb-08-00083 January 25, 2017 Time: 11:0 # 1 CASE REPORT published: 25 January 2017 doi: 10.3389/fmicb.2017.00083 Severe Chromoblastomycosis-Like Cutaneous Infection Caused by Chrysosporium keratinophilum Juhaer Mijiti1†, Bo Pan2,3†, Sybren de Hoog4, Yoshikazu Horie5, Tetsuhiro Matsuzawa6, Yilixiati Yilifan1, Yong Liu1, Parida Abliz7, Weihua Pan2,3, Danqi Deng8, Yun Guo8, Peiliang Zhang8, Wanqing Liao2,3* and Shuwen Deng2,3,7* 1 Department of Dermatology, People’s Hospital of Xinjiang Uygur Autonomous Region, Urumqi, China, 2 Department of Dermatology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, China, 3 Key Laboratory of Molecular Medical Mycology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, China, 4 CBS-KNAW Fungal Biodiversity Centre, Royal Netherlands Academy of Arts and Sciences, Utrecht, Netherlands, 5 Medical Mycology Research Center, Chiba University, Chiba, Japan, 6 Department of Nutrition Science, University of Nagasaki, Nagasaki, Japan, 7 Department of Dermatology, First Hospital of Xinjiang Medical University, Urumqi, China, 8 Department of Dermatology, The Second Affiliated Hospital of Kunming Medical University, Kunming, China Chrysosporium species are saprophytic filamentous fungi commonly found in the Edited by: soil, dung, and animal fur. Subcutaneous infection caused by this organism is Leonard Peruski, rare in humans. We report a case of subcutaneous fungal infection caused by US Centers for Disease Control and Prevention, USA Chrysosporium keratinophilum in a 38-year-old woman. The patient presented with Reviewed by: severe chromoblastomycosis-like lesions on the left side of the jaw and neck for 6 years. Nasib Singh, She also got tinea corporis on her trunk since she was 10 years old. -
Black Fungal Extremes
Studies in Mycology 61 (2008) Black fungal extremes Edited by G.S. de Hoog and M. Grube CBS Fungal Biodiversity Centre, Utrecht, The Netherlands An institute of the Royal Netherlands Academy of Arts and Sciences Black fungal extremes STUDIE S IN MYCOLOGY 61, 2008 Studies in Mycology The Studies in Mycology is an international journal which publishes systematic monographs of filamentous fungi and yeasts, and in rare occasions the proceedings of special meetings related to all fields of mycology, biotechnology, ecology, molecular biology, pathology and systematics. For instructions for authors see www.cbs.knaw.nl. EXECUTIVE EDITOR Prof. dr Robert A. Samson, CBS Fungal Biodiversity Centre, P.O. Box 85167, 3508 AD Utrecht, The Netherlands. E-mail: [email protected] LAYOUT EDITOR S Manon van den Hoeven-Verweij, CBS Fungal Biodiversity Centre, P.O. Box 85167, 3508 AD Utrecht, The Netherlands. E-mail: [email protected] Kasper Luijsterburg, CBS Fungal Biodiversity Centre, P.O. Box 85167, 3508 AD Utrecht, The Netherlands. E-mail: [email protected] SCIENTIFIC EDITOR S Prof. dr Uwe Braun, Martin-Luther-Universität, Institut für Geobotanik und Botanischer Garten, Herbarium, Neuwerk 21, D-06099 Halle, Germany. E-mail: [email protected] Prof. dr Pedro W. Crous, CBS Fungal Biodiversity Centre, P.O. Box 85167, 3508 AD Utrecht, The Netherlands. E-mail: [email protected] Prof. dr David M. Geiser, Department of Plant Pathology, 121 Buckhout Laboratory, Pennsylvania State University, University Park, PA, U.S.A. 16802. E-mail: [email protected] Dr Lorelei L. Norvell, Pacific Northwest Mycology Service, 6720 NW Skyline Blvd, Portland, OR, U.S.A. -
25 Chrysosporium
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Universidade do Minho: RepositoriUM 25 Chrysosporium Dongyou Liu and R.R.M. Paterson contents 25.1 Introduction ..................................................................................................................................................................... 197 25.1.1 Classification and Morphology ............................................................................................................................ 197 25.1.2 Clinical Features .................................................................................................................................................. 198 25.1.3 Diagnosis ............................................................................................................................................................. 199 25.2 Methods ........................................................................................................................................................................... 199 25.2.1 Sample Preparation .............................................................................................................................................. 199 25.2.2 Detection Procedures ........................................................................................................................................... 199 25.3 Conclusion .......................................................................................................................................................................200