Extension Plant Pathology Update July 2013
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Diversity of Endophytic Fungi from Different Verticillium-Wilt-Resistant
J. Microbiol. Biotechnol. (2014), 24(9), 1149–1161 http://dx.doi.org/10.4014/jmb.1402.02035 Research Article Review jmb Diversity of Endophytic Fungi from Different Verticillium-Wilt-Resistant Gossypium hirsutum and Evaluation of Antifungal Activity Against Verticillium dahliae In Vitro Zhi-Fang Li†, Ling-Fei Wang†, Zi-Li Feng, Li-Hong Zhao, Yong-Qiang Shi, and He-Qin Zhu* State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, Henan 455000, P. R. China Received: February 18, 2014 Revised: May 16, 2014 Cotton plants were sampled and ranked according to their resistance to Verticillium wilt. In Accepted: May 16, 2014 total, 642 endophytic fungi isolates representing 27 genera were recovered from Gossypium hirsutum root, stem, and leaf tissues, but were not uniformly distributed. More endophytic fungi appeared in the leaf (391) compared with the root (140) and stem (111) sections. First published online However, no significant difference in the abundance of isolated endophytes was found among May 19, 2014 resistant cotton varieties. Alternaria exhibited the highest colonization frequency (7.9%), *Corresponding author followed by Acremonium (6.6%) and Penicillium (4.8%). Unlike tolerant varieties, resistant and Phone: +86-372-2562280; susceptible ones had similar endophytic fungal population compositions. In three Fax: +86-372-2562280; Verticillium-wilt-resistant cotton varieties, fungal endophytes from the genus Alternaria were E-mail: [email protected] most frequently isolated, followed by Gibberella and Penicillium. The maximum concentration † These authors contributed of dominant endophytic fungi was observed in leaf tissues (0.1797). The evenness of stem equally to this work. -
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. -
State of New York City's Plants 2018
STATE OF NEW YORK CITY’S PLANTS 2018 Daniel Atha & Brian Boom © 2018 The New York Botanical Garden All rights reserved ISBN 978-0-89327-955-4 Center for Conservation Strategy The New York Botanical Garden 2900 Southern Boulevard Bronx, NY 10458 All photos NYBG staff Citation: Atha, D. and B. Boom. 2018. State of New York City’s Plants 2018. Center for Conservation Strategy. The New York Botanical Garden, Bronx, NY. 132 pp. STATE OF NEW YORK CITY’S PLANTS 2018 4 EXECUTIVE SUMMARY 6 INTRODUCTION 10 DOCUMENTING THE CITY’S PLANTS 10 The Flora of New York City 11 Rare Species 14 Focus on Specific Area 16 Botanical Spectacle: Summer Snow 18 CITIZEN SCIENCE 20 THREATS TO THE CITY’S PLANTS 24 NEW YORK STATE PROHIBITED AND REGULATED INVASIVE SPECIES FOUND IN NEW YORK CITY 26 LOOKING AHEAD 27 CONTRIBUTORS AND ACKNOWLEGMENTS 30 LITERATURE CITED 31 APPENDIX Checklist of the Spontaneous Vascular Plants of New York City 32 Ferns and Fern Allies 35 Gymnosperms 36 Nymphaeales and Magnoliids 37 Monocots 67 Dicots 3 EXECUTIVE SUMMARY This report, State of New York City’s Plants 2018, is the first rankings of rare, threatened, endangered, and extinct species of what is envisioned by the Center for Conservation Strategy known from New York City, and based on this compilation of The New York Botanical Garden as annual updates thirteen percent of the City’s flora is imperiled or extinct in New summarizing the status of the spontaneous plant species of the York City. five boroughs of New York City. This year’s report deals with the City’s vascular plants (ferns and fern allies, gymnosperms, We have begun the process of assessing conservation status and flowering plants), but in the future it is planned to phase in at the local level for all species. -
Reticulate Evolution in the Parasitic Genus Cuscuta (Convolvulaceae): Over and Over Again1
791 Reticulate evolution in the parasitic genus Cuscuta (Convolvulaceae): over and over again1 Sasˇa Stefanovic´ and Mihai Costea Abstract: The frequency and relative importance of hybridization in plants has been an area of intense debate. Although this evolutionary phenomenon has received considerable attention from plant biologists, there are no well-supported cases of reticulate evolution involving parasitic plants, to date. Recent molecular phylogenetic analyses revealed that the subge- nus Grammica, the largest and most diverse group of the stem-parasitic genus Cuscuta (dodder), consists of 15 major clades. We describe here five cases of strongly supported discordance between phylogenies derived from plastid and nu- clear data, and interpret them as results of five independent hybridization events. Three of these cases could represent rela- tively recent reticulations, as each of them involves more closely related species, always confined within the same major clade as their putative parental species, and are currently sympatric or parapatric with them. The two remaining cases in- volve species whose potential progenitors are derived from different major groups of Grammica, and which are allopatric in their present distribution. A series of statistical tests was conducted to assess and further explore the significance of this phylogenetic incongruence. Alternative explanations for discordant gene topologies are explored. Cuscuta liliputana sp. nov., a new Mexican species of hybrid origin is described. Key words: Convolvulaceae, Cuscuta, Cuscuta liliputana sp. nov., molecular phylogeny, parasitic plants, reticulate evolution. Re´sume´ : La fre´quence et l’importance relative de l’hybridation chez les plantes soule`vent d’intenses de´bats. Bien que ce phe´nome`ne e´volutif ait rec¸u beaucoup d’attention de la part des phytobiologistes, a` ce jour, on ne connaıˆt pas de cas bien e´tabli d’e´volution re´ticule´e impliquant des plantes parasites. -
1 a Native and an Invasive Dune Grass Share
A native and an invasive dune grass share similar, patchily distributed, root-associated fungal communities Renee B Johansen1, Peter Johnston2, Piotr Mieczkowski3, George L.W. Perry4, Michael S. Robeson5, 1 6 Bruce R Burns , Rytas Vilgalys 1: School of Biological Sciences, The University of Auckland, Private Bag 92019, Auckland Mail Centre, Auckland 1142, New Zealand 2: Landcare Research, Private Bag 92170, Auckland Mail Centre, Auckland 1142, New Zealand 3: Department of Genetics, University of North Carolina, Chapel Hill, North Carolina, U.S.A. 4: School of Environment, The University of Auckland, Private Bag 92019, Auckland, New Zealand 5: Fish, Wildlife and Conservation Biology, Colorado State University, Fort Collins, CO, USA 6: Department of Biology, Duke University, Durham, NC 27708, USA Corresponding author: Renee Johansen, Ph: +64 21 0262 9143, Fax: +64 9 574 4101 Email: [email protected] For the published version of this article see here: https://www.sciencedirect.com/science/article/abs/pii/S1754504816300848 1 Abstract Fungi are ubiquitous occupiers of plant roots, yet the impact of host identity on fungal community composition is not well understood. Invasive plants may benefit from reduced pathogen impact when competing with native plants, but suffer if mutualists are unavailable. Root samples of the invasive dune grass Ammophila arenaria and the native dune grass Leymus mollis were collected from a Californian foredune. We utilised the Illumina MiSeq platform to sequence the ITS and LSU gene regions, with the SSU region used to target arbuscular mycorrhizal fungi (AMF). The two plant species largely share a fungal community, which is dominated by widespread generalists. -
Cuscuta Coryli Engelm
Cuscuta coryli Engelm. Common Names: Hazel dodder (3). Etymology: With Arabic origins, Kushkut, means dodder plant or parasitic plant; in New Latin, Cuscuta directly translates as dodder. Corylus converts to hazel in Greek. The species epithet, coryli, refers to the tendency to parasitize Corylus (1,2). Botanical synonyms (4): Cuscuta compacta var. crenulata (Engelm.) Choisy Cuscuta crenulata Engelm. Cuscuta inflexa Engelm. Epithymum coryli (Engelm.) Nieuwl. & Lunell Grammica coryli Family: Convolvulaceae, the morning glory family Quick Notable Features: ¬ Reduced stem and leaf structure ¬ Thread-like stem is 0.4-0.6mm in diameter ¬ Tiny flowers, ~1.5-2.5mm, with translucent yellowish-white petals, growing in cymose-paniculate clusters or compact glomerulate bunches ¬ Corolla lobes are inflexed ¬ Most often present in hazel (Corylus) fields Plant Height: The height of Cuscuta coryli is dependent on the host; H.L. Dean measured the length of a single dodder plant at nearly half a mile (14). Subspecies/varieties recognized (4): Cuscuta coryli var. coryli and Cuscuta coryli var. stylosa Engelm. Most Likely Confused with: Any other species of Cuscuta—in Michigan these might be: C. cephalathi, C. epilinum, C. epithymum, C. glomerata, C. indecora, C. pentagona or C. polygonorum. Habitat Preference: In Michigan, C. coryli parasitizes Amphicarpaea, Aster, Bidens, Ceanothus, Corylus, Euthamia, Mentha, Monarda, Solidago, Stachys and Symphoricarpos (6). It has also been noted in sandy areas along pond perimeters and low, dry surfaces (17). Geographic Distribution in Michigan: C. coryli is found in eight counties in Michigan’s Lower Peninsula: Cass, Kalamazoo, Monroe, Wayne, Oakland, St. Clair, Midland and Bay (6). Known Elevational Distribution: The altitudinal limit of C. -
Fungicide Sensitivity of Corynespora Cassiicola and Assessment Of
FUNGICIDE SENSITIVITY OF CORYNESPORA CASSIICOLA AND ASSESSMENT OF MANAGEMENT OF TARGET SPOT OF COTTON IN GEORGIA by: MA. KATRINA SHIELA E. LAUREL (Under the Direction of Robert C. Kemerait, Jr.) ABSTRACT Target spot, caused by Corynespora cassiicola, is a serious foliar disease of cotton in the southeastern United States. Baseline (current) isolates of C. cassiicola were tested for sensitivity to metconazole (DMI), fluxapyroxad (SDHI) and pyraclostrobin (QoI). Further work compared fungicide sensitivity of C. cassiicola isolates from cotton to isolates from other hosts. Field experiments were conducted to establish a relationship between fungicide sensitivity in laboratory experiments and fungicide efficacy in managing target spot on cotton. Based on the sensitivity distribution, all isolates tested were considered sensitive to fungicides. However, these sensitivities varied among isolates offering an early indication that resistance can happen in the future. Additionally, all fungicides reduced disease severity and premature defoliation; however, Priaxor (pyraclostrobin + fluxapyroxad [QoI + SDHI]) proved to be most effective. Results from this study can help optimize fungicide sensitivity monitoring practices in an effort to improve fungicide use patterns for optimum disease management. INDEX WORDS: Corynespora cassiicola, Cotton, DMIs, Fluxapyroxad, Fungicide Resistance, Metconazole, Pyraclostrobin, QoIs, SDHIs, Target spot FUNGICIDE SENSITIVITY OF CORYNESPORA CASSIICOLA AND ASSESSMENT OF MANAGEMENT OF TARGET SPOT OF COTTON IN GEORGIA by: MA. KATRINA SHIELA E. LAUREL B.S., Southern Luzon State University, Lucban, Philippines, 2010 A Thesis Submitted to the Graduate Faculty of The University of Georgia in Partial Fulfillment of the Requirements for the Degree MASTER OF SCIENCE ATHENS, GEORGIA 2018 ©2018 Ma. Katrina Shiela E. Laurel All Rights Reserved FUNGICIDE SENSITIVITY OF CORYNESPORA CASSIICOLA AND ASSESSMENT OF MANAGEMENT OF TARGET SPOT OF COTTON IN GEORGIA by: MA. -
Stemphylium Revisited
available online at www.studiesinmycology.org STUDIES IN MYCOLOGY 87: 77–103 (2017). Stemphylium revisited J.H.C. Woudenberg1, B. Hanse2, G.C.M. van Leeuwen3, J.Z. Groenewald1, and P.W. Crous1,4,5* 1Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands; 2IRS, P.O. Box 32, 4600 AA Bergen op Zoom, The Netherlands; 3National Plant Protection Organization (NPPO-NL), P.O. Box 9102, 6700 HC, Wageningen, The Netherlands; 4Wageningen University, Laboratory of Phytopathology, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands; 5Department of Microbiology and Plant Pathology, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria 0002, South Africa *Correspondence: P.W. Crous, [email protected] Abstract: In 2007 a new Stemphylium leaf spot disease of Beta vulgaris (sugar beet) spread through the Netherlands. Attempts to identify this destructive Stemphylium sp. in sugar beet led to a phylogenetic revision of the genus. The name Stemphylium has been recommended for use over that of its sexual morph, Pleospora, which is polyphyletic. Stemphylium forms a well-defined monophyletic genus in the Pleosporaceae, Pleosporales (Dothideomycetes), but lacks an up-to-date phylogeny. To address this issue, the internal transcribed spacer 1 and 2 and intervening 5.8S nr DNA (ITS) of all available Stemphylium and Pleospora isolates from the CBS culture collection of the Westerdijk Institute (N = 418), and from 23 freshly collected isolates obtained from sugar beet and related hosts, were sequenced to construct an overview phylogeny (N = 350). Based on their phylogenetic informativeness, parts of the protein-coding genes calmodulin and glyceraldehyde-3-phosphate dehydro- genase were also sequenced for a subset of isolates (N = 149). -
Stemphylium Leaf Blight of Garlic (Allium Sativum) in Spain: Taxonomy and in Vitro Fungicide Response
Plant Pathol. J. 32(5) : 388-395 (2016) http://dx.doi.org/10.5423/PPJ.OA.03.2016.0063 The Plant Pathology Journal pISSN 1598-2254 eISSN 2093-9280 ©The Korean Society of Plant Pathology Research Article Open Access Stemphylium Leaf Blight of Garlic (Allium sativum) in Spain: Taxonomy and In Vitro Fungicide Response Laura Gálvez1, Jéssica Gil-Serna2, Marta García2, Concepción Iglesias1, and Daniel Palmero1* 1Department of Agricultural Production, Plant Protection Laboratory, Technical University of Madrid, Madrid 28040, Spain 2Department of Microbiology, Complutense University of Madrid, Madrid 28040, Spain (Received on March 16, 2016; Revised on April 27, 2016; Accepted on April 28, 2016) The most serious aerial disease of garlic is leaf blight effec tive at reducing mycelial growth in S. vesicarium caused by Stemphylium spp. Geographical variation in with EC50 values less than 5 ppm. In general, the effec- the causal agent of this disease is indicated. Stemphy- tiveness of the fungicide was enhanced with increasing lium vesicarium has been reported in Spain, whereas S. dosage. solani is the most prevalent species recorded in China. In this study, Stemphylium isolates were obtained Keywords : mycelial growth, Pleospora herbarum from symptomatic garlic plants sampled from the main Spanish production areas. Sequence data for the ITS1–5.8S–ITS2 region enabled assignation of the iso- Garlic (Allium sativum L.) is a crop cultivated worldwide. lates to the Pleospora herbarum complex and clearly According to the Food and Agriculture Organization of distinguished the isolates from S. solani. Conidial mor- the United Nations (FAO), the world production in 2013 phology of the isolates corresponded to that of S. -
Native Vascular Flora of the City of Alexandria, Virginia
Native Vascular Flora City of Alexandria, Virginia Photo by Gary P. Fleming December 2015 Native Vascular Flora of the City of Alexandria, Virginia December 2015 By Roderick H. Simmons City of Alexandria Department of Recreation, Parks, and Cultural Activities, Natural Resources Division 2900-A Business Center Drive Alexandria, Virginia 22314 [email protected] Suggested citation: Simmons, R.H. 2015. Native vascular flora of the City of Alexandria, Virginia. City of Alexandria Department of Recreation, Parks, and Cultural Activities, Alexandria, Virginia. 104 pp. Table of Contents Abstract ............................................................................................................................................ 2 Introduction ...................................................................................................................................... 2 Climate ..................................................................................................................................... 2 Geology and Soils .................................................................................................................... 3 History of Botanical Studies in Alexandria .............................................................................. 5 Methods ............................................................................................................................................ 7 Results and Discussion .................................................................................................................... -
Journal of the Oklahoma Native Plant Society, Volume 9, December 2009
4 Oklahoma Native Plant Record Volume 9, December 2009 VASCULAR PLANTS OF SOUTHEASTERN OKLAHOMA FROM THE SANS BOIS TO THE KIAMICHI MOUNTAINS Submitted to the Faculty of the Graduate College of the Oklahoma State University in partial fulfillment of the requirements for the Degree of Doctor of Philosophy May 1969 Francis Hobart Means, Jr. Midwest City, Oklahoma Current Email Address: [email protected] The author grew up in the prairie region of Kay County where he learned to appreciate proper management of the soil and the native grass flora. After graduation from college, he moved to Eastern Oklahoma State College where he took a position as Instructor in Botany and Agronomy. In the course of conducting botany field trips and working with local residents on their plant problems, the author became increasingly interested in the flora of that area and of the State of Oklahoma. This led to an extensive study of the northern portion of the Oauchita Highlands with collections currently numbering approximately 4,200. The specimens have been processed according to standard herbarium procedures. The first set has been placed in the Herbarium of Oklahoma State University with the second set going to Eastern Oklahoma State College at Wilburton. Editor’s note: The original species list included habitat characteristics and collection notes. These are omitted here but are available in the dissertation housed at the Edmon-Low Library at OSU or in digital form by request to the editor. [SS] PHYSICAL FEATURES Winding Stair Mountain ranges. A second large valley lies across the southern part of Location and Area Latimer and LeFlore counties between the The area studied is located primarily in Winding Stair and Kiamichi mountain the Ouachita Highlands of eastern ranges. -
Fungal Flora of Korea
Fungal Flora of Korea Volume 1, Number 2 Ascomycota: Dothideomycetes: Pleosporales: Pleosporaceae Alternaria and Allied Genera 2015 National Institute of Biological Resources Ministry of Environment Fungal Flora of Korea Volume 1, Number 2 Ascomycota: Dothideomycetes: Pleosporales: Pleosporaceae Alternaria and Allied Genera Seung Hun Yu Chungnam National University Fungal Flora of Korea Volume 1, Number 2 Ascomycota: Dothideomycetes: Pleosporales: Pleosporaceae Alternaria and Allied Genera Copyright ⓒ 2015 by the National Institute of Biological Resources Published by the National Institute of Biological Resources Environmental Research Complex, Hwangyeong-ro 42, Seo-gu Incheon, 404-708, Republic of Korea www.nibr.go.kr All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior permission of the National Institute of Biological Resources. ISBN : 9788968111259-96470 Government Publications Registration Number 11-1480592-000905-01 Printed by Junghaengsa, Inc. in Korea on acid-free paper Publisher : Kim, Sang-Bae Author : Seung Hun Yu Project Staff : Youn-Bong Ku, Ga Youn Cho, Eun-Young Lee Published on March 1, 2015 The Flora and Fauna of Korea logo was designed to represent six major target groups of the project including vertebrates, invertebrates, insects, algae, fungi, and bacteria. The book cover and the logo were designed by Jee-Yeon Koo. Preface The biological resources represent all the composition of organisms and genetic resources which possess the practical and potential values essential for human lives, and occupies a firm position in producing highly value-added products such as new breeds, new materials and new drugs as a means of boosting the national competitiveness.