Diversity of Endophytic Fungi from Different Verticillium-Wilt-Resistant
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Variable Absorption of Mutational Trends by Prion-Forming Domains During Saccharomycetes Evolution
Variable absorption of mutational trends by prion-forming domains during Saccharomycetes evolution Paul M. Harrison Department of Biology, McGill University, Monteal, Quebec, Canada ABSTRACT Prions are self-propagating alternative states of protein domains. They are linked to both diseases and functional protein roles in eukaryotes. Prion-forming domains in Saccharomyces cerevisiae are typically domains with high intrinsic protein disorder (i.e., that remain unfolded in the cell during at least some part of their functioning), that are converted to self-replicating amyloid forms. S. cerevisiae is a member of the fungal class Saccharomycetes, during the evolution of which a large population of prion-like domains has appeared. It is still unclear what principles might govern the molecular evolution of prion-forming domains, and intrinsically disordered domains generally. Here, it is discovered that in a set of such prion-forming domains some evolve in the fungal class Saccharomycetes in such a way as to absorb general mutation biases across millions of years, whereas others do not, indicating a spectrum of selection pressures on composition and sequence. Thus, if the bias-absorbing prion formers are conserving a prion-forming capability, then this capability is not interfered with by the absorption of bias changes over the duration of evolutionary epochs. Evidence is discovered for selective constraint against the occurrence of lysine residues (which likely disrupt prion formation) in S. cerevisiae prion-forming domains as they evolve across Saccharomycetes. These results provide a case study of the absorption of mutational trends by compositionally biased domains, and suggest methodology for assessing selection pressures on the composition of intrinsically disordered regions. -
Integrated Pest Management: Current and Future Strategies
Integrated Pest Management: Current and Future Strategies Council for Agricultural Science and Technology, Ames, Iowa, USA Printed in the United States of America Cover design by Lynn Ekblad, Different Angles, Ames, Iowa Graphics and layout by Richard Beachler, Instructional Technology Center, Iowa State University, Ames ISBN 1-887383-23-9 ISSN 0194-4088 06 05 04 03 4 3 2 1 Library of Congress Cataloging–in–Publication Data Integrated Pest Management: Current and Future Strategies. p. cm. -- (Task force report, ISSN 0194-4088 ; no. 140) Includes bibliographical references and index. ISBN 1-887383-23-9 (alk. paper) 1. Pests--Integrated control. I. Council for Agricultural Science and Technology. II. Series: Task force report (Council for Agricultural Science and Technology) ; no. 140. SB950.I4573 2003 632'.9--dc21 2003006389 Task Force Report No. 140 June 2003 Council for Agricultural Science and Technology Ames, Iowa, USA Task Force Members Kenneth R. Barker (Chair), Department of Plant Pathology, North Carolina State University, Raleigh Esther Day, American Farmland Trust, DeKalb, Illinois Timothy J. Gibb, Department of Entomology, Purdue University, West Lafayette, Indiana Maud A. Hinchee, ArborGen, Summerville, South Carolina Nancy C. Hinkle, Department of Entomology, University of Georgia, Athens Barry J. Jacobsen, Department of Plant Sciences and Plant Pathology, Montana State University, Bozeman James Knight, Department of Animal and Range Science, Montana State University, Bozeman Kenneth A. Langeland, Department of Agronomy, University of Florida, Institute of Food and Agricultural Sciences, Gainesville Evan Nebeker, Department of Entomology and Plant Pathology, Mississippi State University, Mississippi State David A. Rosenberger, Plant Pathology Department, Cornell University–Hudson Valley Laboratory, High- land, New York Donald P. -
Illuminating Type Collections of Nectriaceous Fungi in Saccardo's
Persoonia 45, 2020: 221–249 ISSN (Online) 1878-9080 www.ingentaconnect.com/content/nhn/pimj RESEARCH ARTICLE https://doi.org/10.3767/persoonia.2020.45.09 Illuminating type collections of nectriaceous fungi in Saccardo’s fungarium N. Forin1, A. Vizzini 2,3,*, S. Nigris1,4, E. Ercole2, S. Voyron2,3, M. Girlanda2,3, B. Baldan1,4,* Key words Abstract Specimens of Nectria spp. and Nectriella rufofusca were obtained from the fungarium of Pier Andrea Saccardo, and investigated via a morphological and molecular approach based on MiSeq technology. ITS1 and ancient DNA ITS2 sequences were successfully obtained from 24 specimens identified as ‘Nectria’ sensu Saccardo (including Ascomycota 20 types) and from the type specimen of Nectriella rufofusca. For Nectria ambigua, N. radians and N. tjibodensis Hypocreales only the ITS1 sequence was recovered. On the basis of morphological and molecular analyses new nomenclatural Illumina combinations for Nectria albofimbriata, N. ambigua, N. ambigua var. pallens, N. granuligera, N. peziza subsp. ribosomal sequences reyesiana, N. radians, N. squamuligera, N. tjibodensis and new synonymies for N. congesta, N. flageoletiana, Sordariomycetes N. phyllostachydis, N. sordescens and N. tjibodensis var. crebrior are proposed. Furthermore, the current classifi- cation is confirmed for Nectria coronata, N. cyanostoma, N. dolichospora, N. illudens, N. leucotricha, N. mantuana, N. raripila and Nectriella rufofusca. This is the first time that these more than 100-yr-old specimens are subjected to molecular analysis, thereby providing important new DNA sequence data authentic for these names. Article info Received: 25 June 2020; Accepted: 21 September 2020; Published: 23 November 2020. INTRODUCTION to orange or brown perithecia which do not change colour in 3 % potassium hydroxide (KOH) or 100 % lactic acid (LA) Nectria, typified with N. -
Developmental Biology of Xyleborus Bispinatus (Coleoptera
Fungal Ecology 35 (2018) 116e126 Contents lists available at ScienceDirect Fungal Ecology journal homepage: www.elsevier.com/locate/funeco Developmental biology of Xyleborus bispinatus (Coleoptera: Curculionidae) reared on an artificial medium and fungal cultivation of symbiotic fungi in the beetle's galleries * L.F. Cruz a, , S.A. Rocio a, b, L.G. Duran a, b, O. Menocal a, C.D.J. Garcia-Avila c, D. Carrillo a a Tropical Research and Education Center, University of Florida, 18905 SW 280th St, Homestead, 33031, FL, USA b Universidad Autonoma Chapingo, Km 38.5 Carretera Mexico - Texcoco, Chapingo, Mex, 56230, Mexico c Servicio Nacional de Sanidad, Inocuidad y Calidad Agroalimentaria, Unidad Integral de Diagnostico, Servicios y Constatacion, Tecamac, 55740, Estado de Mexico, Mexico article info abstract Article history: Survival of ambrosia beetles relies on obligate nutritional relationships with fungal symbionts that are Received 10 January 2018 cultivated in tunnels excavated in the sapwood of their host trees. The dynamics of fungal associates, Received in revised form along with the developmental biology, and gallery construction of the ambrosia beetle Xyleborus bispi- 10 July 2018 natus were elaborated. One generation of this ambrosia beetle was reared in an artificial medium con- Accepted 12 July 2018 taining avocado sawdust. The developmental time from egg to adult ranged from 22 to 24 d. The mean Available online 23 August 2018 total gallery length (14.4 cm and 13 tunnels) positively correlated with the number of adults. The most Corresponding Editor: Peter Biedermann prevalent fungal associates were Raffaelea arxii in the foundress mycangia and new galleries, and Raf- faelea subfusca in the mycangia of the F1 adults and the final stages of the galleries. -
Extension Plant Pathology Update July 2013
Extension Plant Pathology Update July 2013 Volume 1, Number 6 Edited by Jean Williams-Woodward Plant Disease Clinic Report for June 2013 By Ansuya Jogi and Jean Williams-Woodward The following tables consist of the commercial and homeowner samples submitted to the UGA plant disease clinics in Athens and Tifton for June 2013 (Table 1) and for one year ago in July 2012 (Table 2). The wet weather has been great for plant growth, as well as plant diseases. Various root rots, leaf spots and rusts have been diagnosed on almost all crops. The incidence of bacterial diseases will increase through July, as will Sclerotium rolfsii and Rhizoctonia diseases. We also continue to confirm Rose Rosette-associated virus on Knock-Out rose samples. Also, Dr. Little has confirmed Cucurbit Yellow Vine Disease on squash, caused by the bacterium, Serratia marcescens. She has a graduate student working on this disease and wants to know if you are seeing it. See page 7 for her summary of cucurbit diseases, including cucurbit yellow vine disease. Looking ahead with the current weather pattern, we expect to see more leaf and root diseases on all crops. This isn’t a surprise. Warm days, cooler nights, high humidity, wet foliage and saturated soils are the recipe for plant disease development. Again, it is an exciting time to be a plant pathologist. Table 1: Plant disease clinic sample diagnoses made in June 2013 Sample Diagnosis Host Plant Commercial Sample Homeowner Sample Apple Bitter Rot (Glomerella cingulata) Alternaria Leaf Spot Alternaria sp.) Rust (Gymnosporangium sp.) Assorted Fruits Insect Damage, Unidentified Insect Nutrient Imbalance; Abiotic Banana Shrub Insect Damage, Unidentified Insect Environmental Stress; Abiotic Beans Root Problems, Abiotic disorder Bentgrass Anthracnose (Colletotrichum cereale) Colletotrichum sp./spp. -
Molecular Systematics of the Marine Dothideomycetes
available online at www.studiesinmycology.org StudieS in Mycology 64: 155–173. 2009. doi:10.3114/sim.2009.64.09 Molecular systematics of the marine Dothideomycetes S. Suetrong1, 2, C.L. Schoch3, J.W. Spatafora4, J. Kohlmeyer5, B. Volkmann-Kohlmeyer5, J. Sakayaroj2, S. Phongpaichit1, K. Tanaka6, K. Hirayama6 and E.B.G. Jones2* 1Department of Microbiology, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand; 2Bioresources Technology Unit, National Center for Genetic Engineering and Biotechnology (BIOTEC), 113 Thailand Science Park, Paholyothin Road, Khlong 1, Khlong Luang, Pathum Thani, 12120, Thailand; 3National Center for Biothechnology Information, National Library of Medicine, National Institutes of Health, 45 Center Drive, MSC 6510, Bethesda, Maryland 20892-6510, U.S.A.; 4Department of Botany and Plant Pathology, Oregon State University, Corvallis, Oregon, 97331, U.S.A.; 5Institute of Marine Sciences, University of North Carolina at Chapel Hill, Morehead City, North Carolina 28557, U.S.A.; 6Faculty of Agriculture & Life Sciences, Hirosaki University, Bunkyo-cho 3, Hirosaki, Aomori 036-8561, Japan *Correspondence: E.B. Gareth Jones, [email protected] Abstract: Phylogenetic analyses of four nuclear genes, namely the large and small subunits of the nuclear ribosomal RNA, transcription elongation factor 1-alpha and the second largest RNA polymerase II subunit, established that the ecological group of marine bitunicate ascomycetes has representatives in the orders Capnodiales, Hysteriales, Jahnulales, Mytilinidiales, Patellariales and Pleosporales. Most of the fungi sequenced were intertidal mangrove taxa and belong to members of 12 families in the Pleosporales: Aigialaceae, Didymellaceae, Leptosphaeriaceae, Lenthitheciaceae, Lophiostomataceae, Massarinaceae, Montagnulaceae, Morosphaeriaceae, Phaeosphaeriaceae, Pleosporaceae, Testudinaceae and Trematosphaeriaceae. Two new families are described: Aigialaceae and Morosphaeriaceae, and three new genera proposed: Halomassarina, Morosphaeria and Rimora. -
Symbiosis Between Yeasts and Insects
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Epsilon Open Archive Symbiosis between yeasts and insects Francisco Gonzalez Introductory paper at the Faculty of Landscape Architecture, Horticulture and Crop Production Science 2014:3 Swedish University of Agricultural Sciences Alnarp, December 2014 1 Symbiosis between yeasts and insects Francisco Gonzalez Introductory paper at the Faculty of Landscape Architecture, Horticulture and Crop Production Science 2014:3 Swedish University of Agricultural Sciences Alnarp, December 2014 Online Publication: http://pub.epsilon.slu.se/ 2 Summary Mutualistic relationships between insects and microorganisms have been widely described for bacterial symbionts associated with sap feeding insects and fungi associated with bark beetles. Recently, the importance and widespread distribution of mutualistic yeasts in plant-insect interactions has been demonstrated. Several examples with Drosophila melanogaster among other insects have shown the ability of the insect to survive in a diet based on yeast consumption only. Moreover, yeasts have shown the ability of suppressing pathogens that might hamper the development of the insects. From the point of view of the yeasts, the main benefit of the mutualism is the facilitation of processes such as outbreeding and spreading offered by contact with insects. Understanding the functions and key elements in yeast-insect interactions could lead to the development of better pest management strategies, for example by exploiting the attraction of insects to yeasts to lure them into entomopathogenic viruses. In this review, I present an overview of the current knowledge in yeast- insect interactions, highlighting what has been studied to date and what research gaps remain to be addressed. -
Diversity of Fungi in Sediments and Water Sampled from the Hot Springs of Lake Magadi and Little Magadi in Kenya
Vol. 10(10), pp. 330-338, 14 March, 2016 DOI: 10.5897/AJMR2015.7879 Article Number: 128717757661 ISSN 1996-0808 African Journal of Microbiology Research Copyright © 2016 Author(s) retain the copyright of this article http://www.academicjournals.org/AJMR Full Length Research Paper Diversity of fungi in sediments and water sampled from the hot springs of Lake Magadi and Little Magadi in Kenya Anne Kelly Kambura1*, Romano Kachiuru Mwirichia2, Remmy Wekesa Kasili1, Edward Nderitu Karanja3, Huxley Mae Makonde4 and Hamadi Iddi Boga5 1Institute for Biotechnology Research, Jomo Kenyatta University of Agriculture and Technology, P. O. Box 62000 - 00200, Nairobi, Kenya. 2Embu University College, P. O. Box 6 - 60100, Embu, Kenya. 3International Centre of Insect Physiology and Ecology (ICIPE), P. O. Box 30772 - 00100, Nairobi, Kenya. 4Pure and Applied Sciences, Technical University of Mombasa, P. O. Box 90420 - 80100, GPO, Mombasa, Kenya. 5Taita Taveta University College, School of Agriculture, Earth and Environmental Sciences, P. O. Box 635-80300 Voi, Kenya. Received 9 December, 2015; Accepted 26 February, 2016 Lake Magadi and Little Magadi are saline, alkaline lakes lying in the southern part of Kenyan Rift Valley. Their solutes are supplied by a series of alkaline hot springs with temperatures as high as 86°C. Previous culture-dependent and independent studies have revealed diverse prokaryotic groups adapted to these conditions. However, very few studies have examined the diversity of fungi in these soda lakes. In this study, amplicons of Internal Transcribed Spacer (ITS) region on Total Community DNA using Illumina sequencing were used to explore the fungal community composition within the hot springs. -
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. -
The Diversification of Evolutionarily Conserved MAPK Cascades
GBE The Diversification of Evolutionarily Conserved MAPK Cascades Correlates with the Evolution of Fungal Species and Downloaded from https://academic.oup.com/gbe/article/9/2/311/2669847 by National Science and Technology Library -Root user on 06 January 2021 Development of Lifestyles Chuan Xu, Ran Liu, Qiangqiang Zhang, Xiaoxuan Chen, Ying Qian, and Weiguo Fang* Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang, China *Corresponding author: E-mail: [email protected]. Accepted: March 4, 2016 Abstract The fungal kingdom displays an extraordinary diversity of lifestyles, developmental processes, and ecological niches. The MAPK (mitogen-activated protein kinase) cascade consists of interlinked MAPKKK, MAPKK, and MAPK, and collectively such cascades play pivotal roles in cellular regulation in fungi. However, the mechanism by which evolutionarily conserved MAPK cascades regulate diverse output responses in fungi remains unknown. Here we identified the full complement of MAPK cascade components from 231 fungal species encompassing 9 fungal phyla. Using the largest data set to date, we found that MAPK family members could have two ancestors, while MAPKK and MAPKKK family members could have only one ancestor. The current MAPK, MAPKK, and MAPKKK subfamilies resulted from duplications and subsequent subfunctionalization during the emergence of the fungal kingdom. However, the gene structure diversification and gene expansion and loss have resulted in significant diversity in fungal MAPK cascades, correlating with the evolution of fungal species and lifestyles. In particular, a distinct evolutionary trajectory of MAPK cascades was identified in single-celled fungi in the Saccharomycetes. All MAPK, MAPKK, and MAPKKK subfamilies expanded in the Saccharomycetes; genes encoding MAPK cascade components have a similar exon–intron structure in this class that differs from those in other fungi. -
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. -
(Hypocreales) Proposed for Acceptance Or Rejection
IMA FUNGUS · VOLUME 4 · no 1: 41–51 doi:10.5598/imafungus.2013.04.01.05 Genera in Bionectriaceae, Hypocreaceae, and Nectriaceae (Hypocreales) ARTICLE proposed for acceptance or rejection Amy Y. Rossman1, Keith A. Seifert2, Gary J. Samuels3, Andrew M. Minnis4, Hans-Josef Schroers5, Lorenzo Lombard6, Pedro W. Crous6, Kadri Põldmaa7, Paul F. Cannon8, Richard C. Summerbell9, David M. Geiser10, Wen-ying Zhuang11, Yuuri Hirooka12, Cesar Herrera13, Catalina Salgado-Salazar13, and Priscila Chaverri13 1Systematic Mycology & Microbiology Laboratory, USDA-ARS, Beltsville, Maryland 20705, USA; corresponding author e-mail: Amy.Rossman@ ars.usda.gov 2Biodiversity (Mycology), Eastern Cereal and Oilseed Research Centre, Agriculture & Agri-Food Canada, Ottawa, ON K1A 0C6, Canada 3321 Hedgehog Mt. Rd., Deering, NH 03244, USA 4Center for Forest Mycology Research, Northern Research Station, USDA-U.S. Forest Service, One Gifford Pincheot Dr., Madison, WI 53726, USA 5Agricultural Institute of Slovenia, Hacquetova 17, 1000 Ljubljana, Slovenia 6CBS-KNAW Fungal Biodiversity Centre, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands 7Institute of Ecology and Earth Sciences and Natural History Museum, University of Tartu, Vanemuise 46, 51014 Tartu, Estonia 8Jodrell Laboratory, Royal Botanic Gardens, Kew, Surrey TW9 3AB, UK 9Sporometrics, Inc., 219 Dufferin Street, Suite 20C, Toronto, Ontario, Canada M6K 1Y9 10Department of Plant Pathology and Environmental Microbiology, 121 Buckhout Laboratory, The Pennsylvania State University, University Park, PA 16802 USA 11State