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Fungal Endophytes from the Aerial Tissues of Important Tropical Forage Grasses Brachiaria Spp
University of Kentucky UKnowledge International Grassland Congress Proceedings XXIII International Grassland Congress Fungal Endophytes from the Aerial Tissues of Important Tropical Forage Grasses Brachiaria spp. in Kenya Sita R. Ghimire International Livestock Research Institute, Kenya Joyce Njuguna International Livestock Research Institute, Kenya Leah Kago International Livestock Research Institute, Kenya Monday Ahonsi International Livestock Research Institute, Kenya Donald Njarui Kenya Agricultural & Livestock Research Organization, Kenya Follow this and additional works at: https://uknowledge.uky.edu/igc Part of the Plant Sciences Commons, and the Soil Science Commons This document is available at https://uknowledge.uky.edu/igc/23/2-2-1/6 The XXIII International Grassland Congress (Sustainable use of Grassland Resources for Forage Production, Biodiversity and Environmental Protection) took place in New Delhi, India from November 20 through November 24, 2015. Proceedings Editors: M. M. Roy, D. R. Malaviya, V. K. Yadav, Tejveer Singh, R. P. Sah, D. Vijay, and A. Radhakrishna Published by Range Management Society of India This Event is brought to you for free and open access by the Plant and Soil Sciences at UKnowledge. It has been accepted for inclusion in International Grassland Congress Proceedings by an authorized administrator of UKnowledge. For more information, please contact [email protected]. Paper ID: 435 Theme: 2. Grassland production and utilization Sub-theme: 2.2. Integration of plant protection to optimise production -
Final 130607
Jury: Prof. dr. ir. Walter Steurbaut (chairman) Prof. dr. ir. Erick Vandamme (promotor) Prof. dr. ir. Wim Soetaert (promotor) Prof. dr. ir. Nico Boon Prof. dr. ir. Monica Höfte Prof. dr. Els Van Damme Dr. Roel Bovenberg Dr. Thierry Dauvrin Promotors: Prof. dr. ir. Erick VANDAMME Prof. dr. ir. Wim SOETAERT Laboratory of Industrial Microbiology and Biocatalysis Department of Biochemical and Microbial Technology Ghent University Dean: Prof. dr. ir. Herman VAN LANGENHOVE Rector: Prof. dr. Paul VAN CAUWENBERGE S. De Maeseneire was supported by a fellowship of the Flemish Institute for the Promotion of Scientific and Technological Research in the Industry (IWT-Vlaanderen). The research was conducted at the Laboratory of Industrial Microbiology and Biocatalysis, Department of Biochemical and Microbial Technology, Ghent University. ir. Sofie De Maeseneire MYROTHECIUM GRAMINEUM AS A NOVEL FUNGAL EXPRESSION HOST Thesis submitted in fulfilment of the requirements for the degree of Doctor (PhD) in Applied Biological Sciences Cell and Gene Biotechnology Titel van het doctoraatsproefschrift in het Nederlands: Myrothecium gramineum als een nieuwe fungale expressie-gastheer Cover illustration: ‘ Myrothecium gramineum’ by Sofie De Maeseneire (June 2007) To refer to this thesis: De Maeseneire, S. L. (2007) Myrothecium gramineum as a novel fungal expression host. PhD-thesis, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium, 308 p. ISBN-number: 978-90-5989-176-0 The author and the promotors give the authorisation to consult and to copy parts of this work for personal use only. Every other use is subject to copy right laws. Permission to reproduce any material contained in this work should be obtained from the author. -
Genome Diversity and Evolution in the Budding Yeasts (Saccharomycotina)
| YEASTBOOK GENOME ORGANIZATION AND INTEGRITY Genome Diversity and Evolution in the Budding Yeasts (Saccharomycotina) Bernard A. Dujon*,†,1 and Edward J. Louis‡,§ *Department Genomes and Genetics, Institut Pasteur, Centre National de la Recherche Scientifique UMR3525, 75724-CEDEX15 Paris, France, †University Pierre and Marie Curie UFR927, 75005 Paris, France, ‡Centre for Genetic Architecture of Complex Traits, and xDepartment of Genetics, University of Leicester, LE1 7RH, United Kingdom ORCID ID: 0000-0003-1157-3608 (E.J.L.) ABSTRACT Considerable progress in our understanding of yeast genomes and their evolution has been made over the last decade with the sequencing, analysis, and comparisons of numerous species, strains, or isolates of diverse origins. The role played by yeasts in natural environments as well as in artificial manufactures, combined with the importance of some species as model experimental systems sustained this effort. At the same time, their enormous evolutionary diversity (there are yeast species in every subphylum of Dikarya) sparked curiosity but necessitated further efforts to obtain appropriate reference genomes. Today, yeast genomes have been very informative about basic mechanisms of evolution, speciation, hybridization, domestication, as well as about the molecular machineries underlying them. They are also irreplaceable to investigate in detail the complex relationship between genotypes and phenotypes with both theoretical and practical implications. This review examines these questions at two distinct levels offered by the broad evolutionary range of yeasts: inside the best-studied Saccharomyces species complex, and across the entire and diversified subphylum of Saccharomycotina. While obviously revealing evolutionary histories at different scales, data converge to a remarkably coherent picture in which one can estimate the relative importance of intrinsic genome dynamics, including gene birth and loss, vs. -
How Many Fungi Make Sclerotia?
fungal ecology xxx (2014) 1e10 available at www.sciencedirect.com ScienceDirect journal homepage: www.elsevier.com/locate/funeco Short Communication How many fungi make sclerotia? Matthew E. SMITHa,*, Terry W. HENKELb, Jeffrey A. ROLLINSa aUniversity of Florida, Department of Plant Pathology, Gainesville, FL 32611-0680, USA bHumboldt State University of Florida, Department of Biological Sciences, Arcata, CA 95521, USA article info abstract Article history: Most fungi produce some type of durable microscopic structure such as a spore that is Received 25 April 2014 important for dispersal and/or survival under adverse conditions, but many species also Revision received 23 July 2014 produce dense aggregations of tissue called sclerotia. These structures help fungi to survive Accepted 28 July 2014 challenging conditions such as freezing, desiccation, microbial attack, or the absence of a Available online - host. During studies of hypogeous fungi we encountered morphologically distinct sclerotia Corresponding editor: in nature that were not linked with a known fungus. These observations suggested that Dr. Jean Lodge many unrelated fungi with diverse trophic modes may form sclerotia, but that these structures have been overlooked. To identify the phylogenetic affiliations and trophic Keywords: modes of sclerotium-forming fungi, we conducted a literature review and sequenced DNA Chemical defense from fresh sclerotium collections. We found that sclerotium-forming fungi are ecologically Ectomycorrhizal diverse and phylogenetically dispersed among 85 genera in 20 orders of Dikarya, suggesting Plant pathogens that the ability to form sclerotia probably evolved 14 different times in fungi. Saprotrophic ª 2014 Elsevier Ltd and The British Mycological Society. All rights reserved. Sclerotium Fungi are among the most diverse lineages of eukaryotes with features such as a hyphal thallus, non-flagellated cells, and an estimated 5.1 million species (Blackwell, 2011). -
Identification and Phylogeny of Ascomycetous Yeasts from Analysis
Antonie van Leeuwenhoek 73: 331–371, 1998. 331 © 1998 Kluwer Academic Publishers. Printed in the Netherlands. Identification and phylogeny of ascomycetous yeasts from analysis of nuclear large subunit (26S) ribosomal DNA partial sequences Cletus P. Kurtzman∗ & Christie J. Robnett Microbial Properties Research, National Center for Agricultural Utilization Research, Agricultural Research Ser- vice, U.S. Department of Agriculture, Peoria, Illinois 61604, USA (∗ author for correspondence) E-mail: [email protected] Received 19 June 1998; accepted 19 June 1998 Key words: Ascomycetous yeasts, phylogeny, ribosomal DNA, systematics Abstract Approximately 500 species of ascomycetous yeasts, including members of Candida and other anamorphic genera, were analyzed for extent of divergence in the variable D1/D2 domain of large subunit (26S) ribosomal DNA. Divergence in this domain is generally sufficient to resolve individual species, resulting in the prediction that 55 currently recognized taxa are synonyms of earlier described species. Phylogenetic relationships among the ascomycetous yeasts were analyzed from D1/D2 sequence divergence. For comparison, the phylogeny of selected members of the Saccharomyces clade was determined from 18S rDNA sequences. Species relationships were highly concordant between the D1/D2 and 18S trees when branches were statistically well supported. Introduction lesser ranges of nDNA relatedness than those found among heterothallic species. Disadvantages of nDNA reassociation studies in- Procedures commonly used for yeast identification clude the need for pairwise comparisons of all isolates rely on the appearance of cellular morphology and dis- under study and that resolution is limited to the ge- tinctive reactions on a standardized set of fermentation netic distance of sister species, i.e., closely related and assimilation tests. -
Phylogenetic Circumscription of Saccharomyces, Kluyveromyces
FEMS Yeast Research 4 (2003) 233^245 www.fems-microbiology.org Phylogenetic circumscription of Saccharomyces, Kluyveromyces and other members of the Saccharomycetaceae, and the proposal of the new genera Lachancea, Nakaseomyces, Naumovia, Vanderwaltozyma and Zygotorulaspora Cletus P. Kurtzman à Microbial Genomics and Bioprocessing Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, U.S. Department of Agriculture, 1815 N. University Street, Peoria, IL 61604, USA Received 22 April 2003; received in revised form 23 June 2003; accepted 25 June 2003 First published online Abstract Genera currently assigned to the Saccharomycetaceae have been defined from phenotype, but this classification does not fully correspond with species groupings determined from phylogenetic analysis of gene sequences. The multigene sequence analysis of Kurtzman and Robnett [FEMS Yeast Res. 3 (2003) 417^432] resolved the family Saccharomycetaceae into 11 well-supported clades. In the present study, the taxonomy of the Saccharomyctaceae is evaluated from the perspective of the multigene sequence analysis, which has resulted in reassignment of some species among currently accepted genera, and the proposal of the following five new genera: Lachancea, Nakaseomyces, Naumovia, Vanderwaltozyma and Zygotorulaspora. ß 2003 Federation of European Microbiological Societies. Published by Elsevier B.V. All rights reserved. Keywords: Saccharomyces; Kluyveromyces; New ascosporic yeast genera; Molecular systematics; Multigene phylogeny 1. Introduction support the maintenance of three distinct genera. Yarrow [8^10] revived the concept of three genera and separated The name Saccharomyces was proposed for bread and Torulaspora and Zygosaccharomyces from Saccharomyces, beer yeasts by Meyen in 1838 [1], but it was Reess in 1870 although species assignments were often di⁄cult. -
Oxylipin Distribution in Eremothecium
1 Oxylipin distribution in Eremothecium by Ntsoaki Joyce Leeuw Submitted in accordance with the requirements for the degree Magister Scientiae in the Department of Microbial, Biochemical and Food Biotechnology Faculty of Natural and Agricultural Sciences University of the Free State Bloemfontein South Africa Supervisor: Prof J.L.F. Kock Co- supervisors: Dr C.H. Pohl Prof P.W.J. Van Wyk November 2006 2 This dissertation is dedicated to the following people: My mother (Nkotseng Leeuw) My brother (Kabelo Leeuw) My cousins (Bafokeng, Lebohang, Mami, Thabang and Rorisang) Mr. Eugean Malebo 3 ACKNOWLEDGEMENTS I wish to thank and acknowledge the following: ) God, to You be the glory for the things You have done in my life. ) My family (especially my mom) – for always being there for me when I’m in need. ) Prof. J.L.F Kock for his patience, constructive criticisms and guidance during the course of this study. ) Dr. C.H. Pohl for her encouragement and assistance in the writing up of this dissertation. ) Mr. P.J. Botes for assistance with the GC-MS. ) Prof. P.W.J. Van Wyk and Miss B. Janecke for assistance with the CLSM and SEM. ) My fellow colleagues (especially Chantel and Desmond) for their assistance, support and encouragement. ) Mr. Eugean Malebo for always being there when I needed you. 4 CONTENTS Page Title page I Acknowledgements II Contents III CHAPTER 1 Introduction 1.1 Motivation 2 1.2 Definition and classification of yeasts 3 1.3 Classification of Eremothecium and related genera 5 1.4 Pathogenicity 12 1.5 Oxylipins 13 1.5.1 Definition -
University of California Riverside
UNIVERSITY OF CALIFORNIA RIVERSIDE Natamycin, a New Postharvest Biofungicide: Toxicity to Major Decay Fungi, Efficacy, and Optimized Usage Strategies A Dissertation submitted in partial satisfaction of the requirements for the degree of Doctor of Philosophy in Plant Pathology by Daniel Sungen Chen September 2020 Dissertation Committee: Dr. James E. Adaskaveg, Chairperson Dr. Michael E. Stanghellini Dr. Alexander I. Putman Copyright by Daniel Sungen Chen 2020 The Dissertation of Daniel Sungen Chen is approved: Committee Chairperson University of California, Riverside AKNOWLEDGEMENTS Foremost, I thank my mentor Dr. James E. Adaskaveg for accepting me into his research program and teaching me the intricacies of the field of postharvest plant pathology and preparing me for a bright career ahead. His knowledge of the field is unmatched. A special thanks goes out to Dr. Helga Förster, whose expertise and attention to detail has helped me out tremendously in my research and writings. I thank my dissertation committee members, Dr. Michael Stanghellini and Dr. Alexander Putman, for their time spent reviewing my dissertation and their guidance during the pursuit of my doctoral degree. Special thanks also go out to my lab members Dr. Rodger Belisle, Dr. Wei Hao, Dr. Kevin Nguyen, and Nathan Riley for their companionship and much appreciated help with my projects. I would also like to thank my former laboratory members, Dr. Stacey Swanson and Dr. Morgan Thai for their guidance and help during the early years of my graduate program. Thanks go out to Dr. Lingling Hou, Dr. Yong Luo, and Doug Cary for their assistance with performing experimental packingline studies at the Kearney Agricultural Research and Extension Center. -
The Phylogeny of Plant and Animal Pathogens in the Ascomycota
Physiological and Molecular Plant Pathology (2001) 59, 165±187 doi:10.1006/pmpp.2001.0355, available online at http://www.idealibrary.com on MINI-REVIEW The phylogeny of plant and animal pathogens in the Ascomycota MARY L. BERBEE* Department of Botany, University of British Columbia, 6270 University Blvd, Vancouver, BC V6T 1Z4, Canada (Accepted for publication August 2001) What makes a fungus pathogenic? In this review, phylogenetic inference is used to speculate on the evolution of plant and animal pathogens in the fungal Phylum Ascomycota. A phylogeny is presented using 297 18S ribosomal DNA sequences from GenBank and it is shown that most known plant pathogens are concentrated in four classes in the Ascomycota. Animal pathogens are also concentrated, but in two ascomycete classes that contain few, if any, plant pathogens. Rather than appearing as a constant character of a class, the ability to cause disease in plants and animals was gained and lost repeatedly. The genes that code for some traits involved in pathogenicity or virulence have been cloned and characterized, and so the evolutionary relationships of a few of the genes for enzymes and toxins known to play roles in diseases were explored. In general, these genes are too narrowly distributed and too recent in origin to explain the broad patterns of origin of pathogens. Co-evolution could potentially be part of an explanation for phylogenetic patterns of pathogenesis. Robust phylogenies not only of the fungi, but also of host plants and animals are becoming available, allowing for critical analysis of the nature of co-evolutionary warfare. Host animals, particularly human hosts have had little obvious eect on fungal evolution and most cases of fungal disease in humans appear to represent an evolutionary dead end for the fungus. -
Molecular Taxonomy of Galactomyces Spp. and Dipodascus Capitatus
International Journal Of Medical Science And Clinical Inventions Volume 2 issue 12 2015 page no. 1485-1489 e-ISSN: 2348-991X p-ISSN: 2454-9576 Available Online At: http://valleyinternational.net/index.php/our-jou/ijmsci Molecular Taxonomy Of Galactomyces Spp. And Dipodascus Capitatus Associate With Dairy Based On Rdna Sequence Analysis In Iraq Zaidan Khlaif Imran* and Aya Kareem Jabbar Biology Department, All Women College of Science, Babylon University, Hilla, Iraq *Corresponded author: Zaidan Khlaif Imran E.mail:[email protected] ;[email protected] Abstract: Galactomyces spp is a telomorph of Geotrichum candidum (anamorph name). is used as a culture for cheese making and in some traditional fermented milks, few studies have assessed the genetic diversity of Galactomyces spp that exist in traditional cheese making facilities. The aim of this study isolation and molecular taxonomically treated of Galactomyces spp and other Candida spp. correlated with dairy products. The results showed that most dairy samples companioned with two species of Galactomyces: G.candidum and G.geotrichum , D. capitatus and four species of Candida spp.: Candida krusei , C. kefyr, C. utilis and C.glabrata .A total of 23 fungal isolates were diagnosed based on universal primers ITS1 / ITS4 to amplify the Internal transcribed region spacer. Four doubtful G.candidum isolates showed unique sizes of products PCR ranged between 380-400 bp. other Candida PCR product ranged 420-780bp. Sequence analysis identified a doubtful G.candidum into G. candidum and G.geotrichum with 97% similarities and with D. capitatus showed 93% similarities, few intraspecific variation were observed at 312-380bp in the amplicons from the primer pair ITS1-ITS4 commonly are from 380 to 400 bp for G. -
<I>Ustilago-Sporisorium-Macalpinomyces</I>
Persoonia 29, 2012: 55–62 www.ingentaconnect.com/content/nhn/pimj REVIEW ARTICLE http://dx.doi.org/10.3767/003158512X660283 A review of the Ustilago-Sporisorium-Macalpinomyces complex A.R. McTaggart1,2,3,5, R.G. Shivas1,2, A.D.W. Geering1,2,5, K. Vánky4, T. Scharaschkin1,3 Key words Abstract The fungal genera Ustilago, Sporisorium and Macalpinomyces represent an unresolved complex. Taxa within the complex often possess characters that occur in more than one genus, creating uncertainty for species smut fungi placement. Previous studies have indicated that the genera cannot be separated based on morphology alone. systematics Here we chronologically review the history of the Ustilago-Sporisorium-Macalpinomyces complex, argue for its Ustilaginaceae resolution and suggest methods to accomplish a stable taxonomy. A combined molecular and morphological ap- proach is required to identify synapomorphic characters that underpin a new classification. Ustilago, Sporisorium and Macalpinomyces require explicit re-description and new genera, based on monophyletic groups, are needed to accommodate taxa that no longer fit the emended descriptions. A resolved classification will end the taxonomic confusion that surrounds generic placement of these smut fungi. Article info Received: 18 May 2012; Accepted: 3 October 2012; Published: 27 November 2012. INTRODUCTION TAXONOMIC HISTORY Three genera of smut fungi (Ustilaginomycotina), Ustilago, Ustilago Spo ri sorium and Macalpinomyces, contain about 540 described Ustilago, derived from the Latin ustilare (to burn), was named species (Vánky 2011b). These three genera belong to the by Persoon (1801) for the blackened appearance of the inflores- family Ustilaginaceae, which mostly infect grasses (Begerow cence in infected plants, as seen in the type species U. -
AR TICLE Asexual and Sexual Morphs of Moesziomyces Revisited
IMA FUNGUS · 8(1): 117–129 (2017) doi:10.5598/imafungus.2017.08.01.09 ARTICLE Asexual and sexual morphs of Moesziomyces revisited Julia Kruse1, 2, Gunther Doehlemann3, Eric Kemen4, and Marco Thines1, 2, 5 1Goethe University, Department of Biological Sciences, Institute of Ecology, Evolution and Diversity, Max-von-Laue-Str. 13, D-60486 Frankfurt am Main, Germany; corresponding author e-mail: [email protected] 2Biodiversität und Klima Forschungszentrum, Senckenberg Gesellschaft für Naturforschung, Senckenberganlage 25, D-60325 Frankfurt am Main, Germany 3Botanical Institute and Center of Excellence on Plant Sciences (CEPLAS), University of Cologne, BioCenter, Zülpicher Str. 47a, D-50674, Köln, Germany 4Max Planck Institute for Plant Breeding Research, Carl-von-Linne-Weg 10, 50829 Köln, Germany 5Integrative Fungal Research Cluster (IPF), Georg-Voigt-Str. 14-16, D-60325 Frankfurt am Main, Germany Abstract: Yeasts of the now unused asexually typified genus Pseudozyma belong to the smut fungi (Ustilaginales) Key words: and are mostly believed to be apathogenic asexual yeasts derived from smut fungi that have lost pathogenicity on ecology plants. However, phylogenetic studies have shown that most Pseudozyma species are phylogenetically close to evolution smut fungi parasitic to plants, suggesting that some of the species might represent adventitious isolations of the phylogeny yeast morph of otherwise plant pathogenic smut fungi. However, there are some species, such as Moesziomyces plant pathogens aphidis (syn. Pseudozyma aphidis) that are isolated throughout the world and sometimes are also found in clinical pleomorphic fungi samples and do not have a known plant pathogenic sexual morph. In this study, it is revealed by phylogenetic Ustilaginomycotina investigations that isolates of the biocontrol agent Moesziomyces aphidis are interspersed with M.