A Adaptation, 141 Aeciospores, 180 Agrobacterium-Mediated
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
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. -
Functional Characterization of Polyketide-Derived
FUNCTIONAL CHARACTERIZATION OF POLYKETIDE-DERIVED SECONDARY METABOLITES SOLANAPYRONES PRODUCED BY THE CHICKPEA BLIGHT PATHOGEN, ASCOCHYTA RABIEI: GENETICS AND CHEMICAL ECOLOGY By WONYONG KIM A dissertation submitted in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY WASHINGTON STATE UNIVERSITY Department of Plant Pathology AUGUST 2015 To the Faculty of Washington State University: The members of the Committee appointed to examine the dissertation of WONYONG KIM find it satisfactory and recommend that it be accepted ___________________________________ Weidong Chen, Ph.D., Chair ___________________________________ Tobin L. Peever, Ph.D. ___________________________________ George J. Vandemark, Ph.D. ___________________________________ Lee A. Hadwiger, Ph.D. ___________________________________ Ming Xian, Ph.D. ii ACKNOWLEDGEMENTS I take this opportunity to thank my major advisor, Dr. Weidong Chen. I have learned a tremendous amount from him in framing hypothesis and critical thinking in science. He gave me every possible opportunity to attend conferences to present my research and interact with scientific communities. I would also like to thank my committee members Drs. Tobin L. Peever, George J. Va ndemark, Lee A. Hadwiger and Ming Xian for their open-door policy when questions arose and for giving me ideas and suggestions that helped develop this dissertation research. I am very fortunate to have such a nice group of committee members who are experts each in their own fields such as Systematics, Genetics, Molecular Biology and Chemistry. Without their expertise and helps the research presented in this dissertation could not have been carried out. I thank to Drs. Jeong-Jin Park and Chung-Min Park for long term collaboration during my doctoral study and being as good friends. -
A Worldwide List of Endophytic Fungi with Notes on Ecology and Diversity
Mycosphere 10(1): 798–1079 (2019) www.mycosphere.org ISSN 2077 7019 Article Doi 10.5943/mycosphere/10/1/19 A worldwide list of endophytic fungi with notes on ecology and diversity Rashmi M, Kushveer JS and Sarma VV* Fungal Biotechnology Lab, Department of Biotechnology, School of Life Sciences, Pondicherry University, Kalapet, Pondicherry 605014, Puducherry, India Rashmi M, Kushveer JS, Sarma VV 2019 – A worldwide list of endophytic fungi with notes on ecology and diversity. Mycosphere 10(1), 798–1079, Doi 10.5943/mycosphere/10/1/19 Abstract Endophytic fungi are symptomless internal inhabits of plant tissues. They are implicated in the production of antibiotic and other compounds of therapeutic importance. Ecologically they provide several benefits to plants, including protection from plant pathogens. There have been numerous studies on the biodiversity and ecology of endophytic fungi. Some taxa dominate and occur frequently when compared to others due to adaptations or capabilities to produce different primary and secondary metabolites. It is therefore of interest to examine different fungal species and major taxonomic groups to which these fungi belong for bioactive compound production. In the present paper a list of endophytes based on the available literature is reported. More than 800 genera have been reported worldwide. Dominant genera are Alternaria, Aspergillus, Colletotrichum, Fusarium, Penicillium, and Phoma. Most endophyte studies have been on angiosperms followed by gymnosperms. Among the different substrates, leaf endophytes have been studied and analyzed in more detail when compared to other parts. Most investigations are from Asian countries such as China, India, European countries such as Germany, Spain and the UK in addition to major contributions from Brazil and the USA. -
Objective Plant Pathology
See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/305442822 Objective plant pathology Book · July 2013 CITATIONS READS 0 34,711 3 authors: Surendra Nath M. Gurivi Reddy Tamil Nadu Agricultural University Acharya N G Ranga Agricultural University 5 PUBLICATIONS 2 CITATIONS 15 PUBLICATIONS 11 CITATIONS SEE PROFILE SEE PROFILE Prabhukarthikeyan S. R ICAR - National Rice Research Institute, Cuttack 48 PUBLICATIONS 108 CITATIONS SEE PROFILE Some of the authors of this publication are also working on these related projects: Management of rice diseases View project Identification and characterization of phytoplasma View project All content following this page was uploaded by Surendra Nath on 20 July 2016. The user has requested enhancement of the downloaded file. Objective Plant Pathology (A competitive examination guide)- As per Indian examination pattern M. Gurivi Reddy, M.Sc. (Plant Pathology), TNAU, Coimbatore S.R. Prabhukarthikeyan, M.Sc (Plant Pathology), TNAU, Coimbatore R. Surendranath, M. Sc (Horticulture), TNAU, Coimbatore INDIA A.E. Publications No. 10. Sundaram Street-1, P.N.Pudur, Coimbatore-641003 2013 First Edition: 2013 © Reserved with authors, 2013 ISBN: 978-81972-22-9 Price: Rs. 120/- PREFACE The so called book Objective Plant Pathology is compiled by collecting and digesting the pertinent information published in various books and review papers to assist graduate and postgraduate students for various competitive examinations like JRF, NET, ARS conducted by ICAR. It is mainly helpful for students for getting an in-depth knowledge in plant pathology. The book combines the basic concepts and terminology in Mycology, Bacteriology, Virology and other applied aspects. -
Characterising Plant Pathogen Communities and Their Environmental Drivers at a National Scale
Lincoln University Digital Thesis Copyright Statement The digital copy of this thesis is protected by the Copyright Act 1994 (New Zealand). This thesis may be consulted by you, provided you comply with the provisions of the Act and the following conditions of use: you will use the copy only for the purposes of research or private study you will recognise the author's right to be identified as the author of the thesis and due acknowledgement will be made to the author where appropriate you will obtain the author's permission before publishing any material from the thesis. Characterising plant pathogen communities and their environmental drivers at a national scale A thesis submitted in partial fulfilment of the requirements for the Degree of Doctor of Philosophy at Lincoln University by Andreas Makiola Lincoln University, New Zealand 2019 General abstract Plant pathogens play a critical role for global food security, conservation of natural ecosystems and future resilience and sustainability of ecosystem services in general. Thus, it is crucial to understand the large-scale processes that shape plant pathogen communities. The recent drop in DNA sequencing costs offers, for the first time, the opportunity to study multiple plant pathogens simultaneously in their naturally occurring environment effectively at large scale. In this thesis, my aims were (1) to employ next-generation sequencing (NGS) based metabarcoding for the detection and identification of plant pathogens at the ecosystem scale in New Zealand, (2) to characterise plant pathogen communities, and (3) to determine the environmental drivers of these communities. First, I investigated the suitability of NGS for the detection, identification and quantification of plant pathogens using rust fungi as a model system. -
Cochliobolus Heterostrophus
May 20Pathogen of the month – May 2020 a b c 50 mm d Fig. (a) Germinating conidium with appressoria (red arrows); (b) formation of an extracellular matrix around the appressorium and early formation of subcuticular hyphae; (c) subcuticular hyphal growth from a stomate (red arrowheads) and; (d) hyphal growth within the leaf ,(1934) ,(1934) mesophyll layer. Maize leaf lesions infected with C. heterostrophus were hand cut and cleared overnight in glacial acetic acid: ethanol solution. They were rinsed in water and then treated with Calcofluor White stain in (a) or Lactophenol Blue solution in (b) ,(c) and (d). Images were acquired with an Olympus BX50 and a Nikon Eclipse Ti microscopes on the Bioimaging platform, La Trobe University. Common Name: Maydis leaf blight, southern leaf blotch Disease: Southern corn leaf blight (SCLB) or leaf spot; leaf blotch Classification: K: Fungi P: Ascomycota C: Dothideomycetes O: Pleosporales F: Pleosporaceae Cochliobolus heterostrophus (anamorph, Bipolaris maydis) is a necrotophic, hetrothallic fungus which infects the leaves of Drechsler maize. The species is subdivided into three races: race O, race T and race C. Race T is the most virulent to maize plants ) carrying the Texas cytoplasmic male sterile trait due to presence of approx. 1.2 Mb of DNA encoding genes for T-toxin production. Other members of the genus include the necrotrophic corn pathogen Cochliobolus carbonum, the oat pathogen, Cochliobolus victoriae, the rice pathogen, Cochliobolus miyabeanus, the sorghum pathogen, Bipolaris sorghicola, the sugarcane pathogen, Bipolaris sacchari, and the hemibiotrophic generalized cereal and grass pathogen, Cochliobolus sativus. All species mentioned above produce host selective toxins. -
Characterization of a Cell Death Suppressing Effector Broadly Conserved Across the Fungal Kingdom Ehren Lee Whigham Iowa State University
Iowa State University Capstones, Theses and Graduate Theses and Dissertations Dissertations 2013 Characterization of a cell death suppressing effector broadly conserved across the fungal kingdom Ehren Lee Whigham Iowa State University Follow this and additional works at: https://lib.dr.iastate.edu/etd Part of the Agricultural Science Commons, Agriculture Commons, and the Plant Pathology Commons Recommended Citation Whigham, Ehren Lee, "Characterization of a cell death suppressing effector broadly conserved across the fungal kingdom" (2013). Graduate Theses and Dissertations. 13431. https://lib.dr.iastate.edu/etd/13431 This Thesis is brought to you for free and open access by the Iowa State University Capstones, Theses and Dissertations at Iowa State University Digital Repository. It has been accepted for inclusion in Graduate Theses and Dissertations by an authorized administrator of Iowa State University Digital Repository. For more information, please contact [email protected]. Characterization of a cell death suppressing effector broadly conserved across the fungal kingdom by Ehren L. Whigham A thesis submitted to the graduate faculty in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Major: Plant Pathology Program of Study Committee: Roger P. Wise, Major Professor Adam Bogdanove Erik Vollbrecht Iowa State University Ames, Iowa 2013 Copyright © Ehren L. Whigham, 2013, All rights reserved. ii TABLE OF CONTENTS GLOSSARY/ABBREVIATIONS .................................................................... iii -
An Outline of Plant Pathology
AN OUTLINE OF PLANT PATHOLOGY Y. Chandra sekhar A. Prasad Babu R. Nagaraju AN OUTLINE OF PLANT PATHOLOGY Y. CHANDRA SEKHAR, M.Sc (Ag) Research Associate (Plant Pathology) Horticultural Research Station, Anantharajupeta Dr. Y.S.R. Horticultural University Andhra Pradesh Dr. ADARI PRASAD BABU R&D Head, Chief Ageonomist Lao Agro Green Organic Co. Ltd, Laos Dr.R. NAGARAJU Senior Scientist (Hort) & Head Horticultural Research Station, Anantharajupeta Dr. Y.S.R. Horticultural University Andhra Pradesh Published by: Mr.Gajendra Parmar for Parmar Publishers and Distributors 854, KG Ashram, Bhuinphod, Govindpur Road, Dhanbad-828109, Jharkhand Email: [email protected], [email protected] Ph: 9700860832, 9308398856 I First Edition – May, 2017 © Copyright with the Authors All rights reserved. No part of this publication may be reproduced, photocopied or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise without the prior written permission of the publisher/authors. Note: Due care has been taken while editing and printing the book. In the event of any mistake crept in, or printing error happens, Publisher or Authors will not be held responsibility. In case of any binding error, misprints, or for missing pages etc., Publisher’s entire liability is replacement of the same edition of the book within one month of purchase of the book. Printed and bound in India ISBN: 978-93-84113-99-5 Published by: Mr.Gajendra Parmar for Parmar Publishers and Distributors 854, KG Ashram, Bhuinphod, Govindpur Road, Dhanbad-828109, Jharkhand Email: [email protected], [email protected] Ph: 9700860832, 9308398856 II PREFACE Plant Pathology, one of the prominent branches of Agricultural as wll as Horticultural has expanded by during the last three decades and assumed new dimension the subject. -
Abstracts from the 19Th FGC
Fungal Genetics Reports Volume 44 Article 28 Abstracts from the 19th FGC Fungal Genetics Conference Follow this and additional works at: https://newprairiepress.org/fgr This work is licensed under a Creative Commons Attribution-Share Alike 4.0 License. Recommended Citation Fungal Genetics Conference. (1997) "Abstracts from the 19th FGC," Fungal Genetics Reports: Vol. 44, Article 28. https://doi.org/10.4148/1941-4765.1296 This Supplementary Material is brought to you for free and open access by New Prairie Press. It has been accepted for inclusion in Fungal Genetics Reports by an authorized administrator of New Prairie Press. For more information, please contact [email protected]. Abstracts from the 19th FGC Abstract Plenary and poster session abstracts from the 19th Fungal Genetics Conference This supplementary material is available in Fungal Genetics Reports: https://newprairiepress.org/fgr/vol44/iss1/28 : Abstracts from the 19th FGC Plenary Session Abstracts at the 19th Fungal Genetics Conference at Asilomar • Gene Regulation and Metabolism • Cell Biology and Pathogenesis • Evolution and Population Genetics • Sexual/Asexual Reproduction Plenary Session: Gene Regulation and Metabolism (Chair: Claudio Scazzocchio) pH regulation in Aspergillus nidulans . Miguel Angel Penalva, Centro de Investigaciones Biologicas CSIC, Madrid, Spain The zinc-finger transcription factor PacC mediates pH regulation in Aspergillus nidulans and other ascomycetes. The 678-residue PacC primary translation product is inactive in structural gene regulation. Under ambient alkaline pH conditions, a signal provided by the six pal -gene pathway causes an unknown modification in the protein which makes it accessible to a proteolytic processing step. This limited proteolysis eliminates the ~60% residues of PacC at the carboxyl side. -
Comparative Genome Structure, Secondary Metabolite, and Effector Coding Capacity Across Cochliobolus Pathogens
Comparative Genome Structure, Secondary Metabolite, and Effector Coding Capacity across Cochliobolus Pathogens Bradford J. Condon1., Yueqiang Leng2., Dongliang Wu1., Kathryn E. Bushley3, Robin A. Ohm4, Robert Otillar4, Joel Martin4, Wendy Schackwitz4, Jane Grimwood5, NurAinIzzati MohdZainudin1,6, Chunsheng Xue1,7, Rui Wang2, Viola A. Manning3, Braham Dhillon8, Zheng Jin Tu9, Brian J. Steffenson10, Asaf Salamov4, Hui Sun4, Steve Lowry4, Kurt LaButti4, James Han4, Alex Copeland4, Erika Lindquist4, Kerrie Barry4, Jeremy Schmutz4,5, Scott E. Baker11, Lynda M. Ciuffetti3, Igor V. Grigoriev4, Shaobin Zhong2"*, B. Gillian Turgeon1"* 1 Department of Plant Pathology and Plant-Microbe Biology, Cornell University, Ithaca, New York, United States of America, 2 Department of Plant Pathology, North Dakota State University, Fargo, North Dakota, United States of America, 3 Department of Botany and Plant Pathology, Oregon State University, Corvallis, Oregon, United States of America, 4 United States Department of Energy (DOE) Joint Genome Institute (JGI), Walnut Creek, California, United States of America, 5 HudsonAlpha Institute for Biotechnology, Huntsville, Alabama, United States of America, 6 Department of Biology, Faculty of Science, Universiti Putra Malaysia, Serdang, Selangor, Malaysia, 7 College of Plant Protection, Shenyang Agricultural University, Shenyang, China, 8 Department of Forest Sciences, University of British Columbia, Vancouver, Canada, 9 Supercomputing Institute for Advanced Computational Research, University of Minnesota, Minneapolis, -
Tesisdoctoral
Facultad de Ciencias Naturales y Museo Universidad Nacional de La Plata Tesis Doctoral “Mancha Gris de la Hoja del Tomate: Identificación, Biología y Genómica del Agente Etiológico” Doctorando: Lic. Mario Emilio Ernesto Franco Director: Ph. D. Pedro Alberto Balatti Director: Dr. Mario Carlos Nazareno Saparrat 2019 El presente trabajo de tesis, para optar por el título de Doctor en Ciencias Naturales de la Facultad de Ciencias Naturales y Museo de la Universidad Nacional de La Plata, fue realizado en el Centro de Investigaciones de Fitopatología, dependiente de la Facultad de Ciencias Agrarias y Forestales de la Universidad Nacional de La Plata y de la Comisión de Investigaciones Científicas de la Provincia de Buenos Aires, bajo la dirección del Ph. D. Pedro Alberto Balatti y del Dr. Mario Carlos Nazareno Saparrat. Agradecimientos A la Facultad de Ciencias Naturales y Museo de la Universidad Nacional de La Plata, a la Facultad de Ciencias Exactas de la Universidad Nacional de La Plata y al Instituto San Patricio, por la formación. A mis directores, por haberme guiado en el desarrollo de este trabajo; por los conocimientos transmitidos y la confianza depositada. A mis compañeros del Centro de Investigaciones de Fitopatología y de la Cátedra de Microbiología de la Facultad de Ciencias Agrarias y Forestales, por la inmensa y desinteresada colaboración. A mis amigos, porque siempre están. Especialmente, a mi familia, por su amor y respaldo. ÍNDICE Resumen ............................................................................................................................. -
Cochliobolus - Curvularia Complex
Fungal Diversity (2012) 56:131–144 DOI 10.1007/s13225-012-0189-2 A phylogenetic and taxonomic re-evaluation of the Bipolaris - Cochliobolus - Curvularia Complex Dimuthu S. Manamgoda & Lei Cai & Eric H. C. McKenzie & Pedro W. Crous & Hugo Madrid & Ekachai Chukeatirote & Roger G. Shivas & Yu Pei Tan & Kevin D. Hyde Received: 16 June 2012 /Accepted: 11 July 2012 /Published online: 25 August 2012 # Mushroom Research Foundation 2012 Abstract Three genera, Cochliobolus, Bipolaris and Cur- complex based on a set of ex-type cultures and collections vularia form a complex that contains many plant pathogens, from northern Thailand. Combined gene analysis of rDNA mostly on grasses (Poaceae) with a worldwide distribution. ITS (internal transcribed spacer), GPDH (glyceraldehyde 3- The taxonomy of this complex is confusing as frequent phosphate dehydrogenase), LSU (large subunit) and EF1-α nomenclatural changes and refinements have occurred. (translation elongation factor 1-α) shows that this generic There is no clear morphological boundary between the complex divides into two groups. Bipolaris and Cochliobo- asexual genera Bipolaris and Curvularia, and some species lus species clustered in Group 1 along with their type show intermediate morphology. We investigated this species, whereas Curvularia species (including species named as Bipolaris, Cochliobolus and Curvularia) clustered in Group 2, with its generic type. The nomenclatural conflict in : : * D. S. Manamgoda E. Chukeatirote K. D. Hyde ( ) this complex is resolved giving priority to the more commonly Institute of Excellence in Fungal Research, Mae Fah Luang University, used established generic names Bipolaris and Curvularia. Chiang Rai 57100, Thailand Modern descriptions of the genera Bipolaris and Curvularia e-mail: [email protected] are provided and species resolved in this study are transferred D.