DOCSLIB.ORG

WO 2014/029697 Al 27 February 2014 (27.02.2014) P O P C T

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
WO 2014/029697 Al 27 February 2014 (27.02.2014) P O P C T (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (10) International Publication Number (43) International Publication Date WO 2014/029697 Al 27 February 2014 (27.02.2014) P O P C T (51) International Patent Classification: (74) Common Representative: BASF SE; 67056 Ludwig A01N 25/00 (2006.01) A01N 43/56 (2006.01) shafen (DE). A0 43/40 (2006.01) A0 43/78 (2006.01) (81) Designated States (unless otherwise indicated, for every A01N 47/24 (2006.01) A0 45/02 (2006.01) kind of national protection available): AE, AG, AL, AM, A01N 43/88 (2006.01) A01P 3/00 (2006.01) AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, A0 37/50 (2006.01) BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, (21) International Application Number: DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, PCT/EP20 13/067 148 HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, (22) International Filing Date: MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, 16 August 2013 (16.08.2013) OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, (25) Filing Language: English SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, (26) Publication Language: English ZW. (30) Priority Data: (84) Designated States (unless otherwise indicated, for every 1218 13 12.5 22 August 2012 (22.08.2012) EP kind of regional protection available): ARIPO (BW, GH, (71) Applicant: BASF SE [DE/DE]; 67056 Ludwigshafen GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, (DE). UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, (72) Inventors: DIACOV, Rogerio Andrade; Rua Borba Gato, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, CEP-04747-030 Sao Paulo (BR). FRATESCHI, Alexan¬ MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, dre; Alameda Pico da Neblina, 350, CEP-06544-440 TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, Santana de Parnaiba/SP (BR). OLIVEIRA, Fabio KM, ML, MR, NE, SN, TD, TG). Eduardo Bueno; Rua Guararapes, CEP-0456 1-004 Sao Paulo (BR). ISMAEL, Marcelo; Avenida das Nacoes Uni- Published: das, n° 14. 171, CEP-04538-132 Rochavera (BR). ZAM- — with international search report (Art. 21(3)) BON, Sergio; Travessa Joao Jose Abdalla, 447, CEP- 13.417-43 1 Piracicaba - SP (BR). o o (54) Title: FUNGICIDAL TERNARY MIXTURES COMPRISING FLUAZINAM (57) Abstract: The present invention relates to fungicidal ternary mixtures comprising at least one inhibitor of complex II and at least one inhibitor of complex III at Q site as defined herein and fluazinam, to composition comprising said mixtures and to the use and to methods for combating phytopathogenic fungi. The present invention also relates to seeds treated with at least one such mix - ture. Furthermore the invention relates to processes for preparing mixtures and compositions of such mixtures. FUNGICIDAL TERNARY MIXTURES COMPRISING FLUAZINAM Description The present invention relates to fungicidal ternary mixtures comprising at least one inhibitor of complex II and at least one inhibitor of complex III at Q0 site as defined herein and fluazinam, to composition comprising said mixtures and to the use and to methods for combating phytopathogenic fungi. The present invention also relates to seeds treated with at least one such mixture. Furthermore the invention relates to processes for preparing mixtures and compositions of such mixtures. Binary mixtures of the inhibitor of complex II boscalid with one of the inhibitors of complex III at Q o site pyraclostrobin, azoxystrobin, fluoxastrobin or trifloxystrobin or with fluazinam have been mentioned in WO 98/08385 and WO 99/31981 , respectively. Further, WO 2007/017416 mentions inter alia binary fungicidal mixtures of the inhibitor of complex II fluxapyroxad with one of the inhibitors of complex III at Q0 site pyraclostrobin, azoxystrobin, fluoxastrobin or trifloxystrobin or with fluazinam. Practical agricultural experience has shown that the repeated and exclusive application of an individual active compound or a binary mixture in the control of harmful fungi leads in many cases to a rapid selection of those fungus strains which have developed natural or adapted resistance against the active compound in question. Effective control of these fungi with the active compound and/or binary mixture in question is then no longer possible. To reduce the risk of the selection of resistant fungus strains, mixtures of more than two different active compounds are employed for controlling harmful fungi. By combining at least three active compounds having different mechanisms of action, it is possible to ensure successful control over a relatively long period of time. It is an object of the present invention to provide, with a view to effective resistance management and effective control of phytopathogenic harmful fungi, at application rates which are as low as possible, compositions which, at a reduced total amount of active compounds applied, have improved activity against the harmful fungi (synergistic mixtures) and a broadened activty spectrum, in particular for certain indications. We have accordingly found that this object is achieved by the mixtures and compositions, defined herein, comprising at least one compound I as defined herein, at least one compound II as defined herein and fluazinam. Moreover, we have found that simultaneous, that is joint or separate, application of a compound I, a compound II and fluazinam or successive application of a compound I, a compound II and fluazinam allows better control of harmful fungi than is possible with the binary mixtures or the individual compounds alone (synergistic mixtures). The invention also relates to a method for controlling phytopathogenic harmful fungi using mixtures of at least one inhibitor of complex II as defined herein and pyraclostrobin and fluazinam and to the use of a compound I and a compound II and fluazinam for preparing such mixtures, and to compositions comprising these mixtures and seed comprising these mixtures or coated with this this mixture. Thus, the present invention relates to mixtures comprising, as active components 1) at least one compound I selected from: fluxapyroxad, boscalid, benzovindiflupyr, bixafen, fluopyram, furametpyr, isopyrazam, penflufen, penthiopyrad, sedaxane, thifluzamide, N-(4'-trifluoromethylthiobiphenyl-2-yl)- 3-difluoromethyl-1 -methyl-1 H-pyrazole-4-carboxamide, N-(2-(1 ,3,3-trimethyl-butyl)- phenyl)-1 ,3-dimethyl-5-fluoro-1 H-pyrazole-4-carboxamide, 3-(difluoromethyl)-1 -methyl- N-(1 , 1 ,3-trimethylindan-4-yl)pyrazole-4-carboxamide, 3-(trifluoromethyl)-1-methyl-N- ( 1 , 1 ,3-trimethylindan-4-yl)pyrazole-4-carboxamide, 1,3-dimethyl-N-(1 , 1 ,3-trimethylindan- 4-yl)pyrazole-4-carboxamide, 3-(trifluoromethyl)-1 ,5-dimethyl-N-(1 , 1 ,3-trimethylindan- 4-yl)pyrazole-4-carboxamide, 3-(difluoromethyl)-1 ,5-dimethyl-N-(1 , 1 ,3-trimethylindan- 4-yl)pyrazole-4-carboxamide and 1,3,5-trimethyl-N-(1 , 1 ,3-trimethylindan-4-yl)pyrazole-4- carboxamide; and 2) at least one compound II selected from: pyraclostrobin, azoxystrobin, fluoxastrobin and trifloxystrobin; and 3) fluazinam. According to one embodiment, these ternary mixtures comprise the component 1), component 2) and component 3) in a synergistically effective amount. In the ternary mixtures according to the invention, i.e. compositions comprising one compound I (component 1) and one compound II (component 2) and fluazinam (component 3), the weight ratio of compound I (component 1) and compound II (component 2) depends from the properties of the active substances used, usually it is in the range of from 1:50 to 50:1 , regularly in the range of from 1:20 to 20:1 , preferably in the range of from 1:10 to 10:1 , more preferably in the range of from 1:4 to 4:1 and in particular in the range of from 1:2 to 2:1 , and the weight ratio of compound I (component 1) and fluazinam (component 3) usually it is in the range of from 1:50 to 50:1 , regularly in the range of from 1:20 to 20:1 , preferably in the range of from 1:10 to 10:1 , more preferably in the range of from 1:4 to 4:1 and in particular in the range of from 1:2 to 2:1 . According to a further embodiment, the weight ratio of component 1) and component 2) is in the range of from 20:1 to 1:20 and the weight ratio of component 1) and component 3) is in the range of from 1: 1 to 1:50. In the ternary mixtures according to the invention, i.e. compositions comprising one compound I selected from boscalid, fluxapyroxad and benzovindiflupyr (as component 1) and one compound II selected from pyraclostrobin and azoxystrobin (component 2) and fluazinam (component 3), the weight ratio of compound I (component 1) and compound II (component 2) depends from the properties of the active substances used, usually it is in the range of from 0.5:1 to 1:5, regularly in the range of from 1: 1 to 1:3, preferably in the range of from 1: 1 .5 to 1:3, and in particular in the range of 1:2, and the weight ratio of compound I (component 1) and fluazinam (component 3) usually it is in the range of from 1: 1 to 1:50, regularly in the range of from 1:5 to 1:25, preferably in the range of from 1:5 to 1:15 and in particular in the range of 1:10.
Load more

Recommended publications
  • Diversity of Entomopathogens Fungi: Which Groups Conquered
    bioRxiv preprint doi: https://doi.org/10.1101/003756; this version posted April 4, 2014. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. Diversity of entomopathogens Fungi: Which groups conquered the insect body? João P. M. Araújoa & David P. Hughesb aDepartment of Biology, Penn State University, University Park, Pennsylvania, United States of America. bDepartment of Entomology and Department of Biology, Penn State University, University Park, Pennsylvania, United States of America. [email protected]; [email protected]; Abstract The entomopathogenic Fungi comprise a wide range of ecologically diverse species. This group of parasites can be found distributed among all fungal phyla and as well as among the ecologically similar but phylogenetically distinct Oomycetes or water molds, that belong to a different kingdom (Stramenopila). As a group, the entomopathogenic fungi and water molds parasitize a wide range of insect hosts from aquatic larvae in streams to adult insects of high canopy tropical forests. Their hosts are spread among 18 orders of insects, in all developmental stages such as: eggs, larvae, pupae, nymphs and adults exhibiting completely different ecologies. Such assortment of niches has resulted in these parasites evolving a considerable morphological diversity, resulting in enormous biodiversity, much of which remains unknown. Here we gather together a huge amount of records of these entomopathogens to comparing and describe both their morphologies and ecological traits. These findings highlight a wide range of adaptations that evolved following the evolutionary transition to infecting the most diverse and widespread animals on Earth, the insects.
    [Show full text]
  • Fungi: Identification
    CHAPTER V- 1 Fungi: Identification RICHARD A. HUMBER USDA-ARS Plant Protection Research Unit, US Plant, Soil & Nutrition Laboratory, Tower Road, Ithaca, New York 14853-2901, USA a detailed guide to the diagnostic characters of many 1 INTRODUCTION important fungal entomopathogens. This chapter also discusses the preparation of Most scientists who find and try to identify ento- mounts for microscopic examination. Similar points mopathogenic fungi have little mycological back- are covered in other chapters, but good slide mounts ground. This chapter presents the basic skills and and simple issues of microscopy are indispensable information needed to allow non-mycologists to skills for facilitating the observation of key taxo- identify the major genera and, in some instances, nomic characters. Many publications discuss the most common species of fungal entomopathogens to principles of microscopy, but a manual by Smith the genetic or, in many instances, to the specific level (1994) is easy to understand and notable for its many with a degree of confidence. micrographs showing the practical effects of the Although many major species of fungal ento- proper and improper use of a light microscope. mopathogens have basic diagnostic characters mak- The recording of images presents a wholly new set ing them quickly identifiable, it must be remembered of options and challenges in increasingly computer- that species such as Beauveria bassiana (Bals.) ized laboratories. Until this century, the only visual Vuill., Metarhizium anisopliae (Sorok.) Metsch, and means to record microscopic observations was with Verticillium lecanii (Zimm.) Vi6gas are widely drawings; such artwork, whether rendered freehand agreed to be species complexes whose resolutions or with the aid of a camera lucida, still remains an will depend on correlating molecular, morphologi- important means of illustrating many characters.
    [Show full text]
  • A Higher-Level Phylogenetic Classification of the Fungi
    mycological research 111 (2007) 509–547 available at www.sciencedirect.com journal homepage: www.elsevier.com/locate/mycres A higher-level phylogenetic classification of the Fungi David S. HIBBETTa,*, Manfred BINDERa, Joseph F. BISCHOFFb, Meredith BLACKWELLc, Paul F. CANNONd, Ove E. ERIKSSONe, Sabine HUHNDORFf, Timothy JAMESg, Paul M. KIRKd, Robert LU¨ CKINGf, H. THORSTEN LUMBSCHf, Franc¸ois LUTZONIg, P. Brandon MATHENYa, David J. MCLAUGHLINh, Martha J. POWELLi, Scott REDHEAD j, Conrad L. SCHOCHk, Joseph W. SPATAFORAk, Joost A. STALPERSl, Rytas VILGALYSg, M. Catherine AIMEm, Andre´ APTROOTn, Robert BAUERo, Dominik BEGEROWp, Gerald L. BENNYq, Lisa A. CASTLEBURYm, Pedro W. CROUSl, Yu-Cheng DAIr, Walter GAMSl, David M. GEISERs, Gareth W. GRIFFITHt,Ce´cile GUEIDANg, David L. HAWKSWORTHu, Geir HESTMARKv, Kentaro HOSAKAw, Richard A. HUMBERx, Kevin D. HYDEy, Joseph E. IRONSIDEt, Urmas KO˜ LJALGz, Cletus P. KURTZMANaa, Karl-Henrik LARSSONab, Robert LICHTWARDTac, Joyce LONGCOREad, Jolanta MIA˛ DLIKOWSKAg, Andrew MILLERae, Jean-Marc MONCALVOaf, Sharon MOZLEY-STANDRIDGEag, Franz OBERWINKLERo, Erast PARMASTOah, Vale´rie REEBg, Jack D. ROGERSai, Claude ROUXaj, Leif RYVARDENak, Jose´ Paulo SAMPAIOal, Arthur SCHU¨ ßLERam, Junta SUGIYAMAan, R. Greg THORNao, Leif TIBELLap, Wendy A. UNTEREINERaq, Christopher WALKERar, Zheng WANGa, Alex WEIRas, Michael WEISSo, Merlin M. WHITEat, Katarina WINKAe, Yi-Jian YAOau, Ning ZHANGav aBiology Department, Clark University, Worcester, MA 01610, USA bNational Library of Medicine, National Center for Biotechnology Information,
    [Show full text]
  • Chytridiomycetes, Chytridiomycota)
    VOLUME 5 JUNE 2020 Fungal Systematics and Evolution PAGES 17–38 doi.org/10.3114/fuse.2020.05.02 Taxonomic revision of the genus Zygorhizidium: Zygorhizidiales and Zygophlyctidales ord. nov. (Chytridiomycetes, Chytridiomycota) K. Seto1,2,3*, S. Van den Wyngaert4, Y. Degawa1, M. Kagami2,3 1Sugadaira Research Station, Mountain Science Center, University of Tsukuba, 1278-294, Sugadaira-Kogen, Ueda, Nagano 386-2204, Japan 2Department of Environmental Science, Faculty of Science, Toho University, 2-2-1, Miyama, Funabashi, Chiba 274-8510, Japan 3Graduate School of Environment and Information Sciences, Yokohama National University, 79-7, Tokiwadai, Hodogaya, Yokohama, Kanagawa 240- 8502, Japan 4Department of Experimental Limnology, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Alte Fischerhuette 2, D-16775 Stechlin, Germany *Corresponding author: [email protected] Key words: Abstract: During the last decade, the classification system of chytrids has dramatically changed based on zoospore Chytridiomycota ultrastructure and molecular phylogeny. In contrast to well-studied saprotrophic chytrids, most parasitic chytrids parasite have thus far been only morphologically described by light microscopy, hence they hold great potential for filling taxonomy some of the existing gaps in the current classification of chytrids. The genus Zygorhizidium is characterized by an zoospore ultrastructure operculate zoosporangium and a resting spore formed as a result of sexual reproduction in which a male thallus Zygophlyctis and female thallus fuse via a conjugation tube. All described species of Zygorhizidium are parasites of algae and Zygorhizidium their taxonomic positions remain to be resolved. Here, we examined morphology, zoospore ultrastructure, host specificity, and molecular phylogeny of seven cultures of Zygorhizidium spp. Based on thallus morphology and host specificity, one culture was identified as Z.
    [Show full text]
  • Insect Pathogens As Biological Control Agents: Back to the Future ⇑ L.A
    Journal of Invertebrate Pathology 132 (2015) 1–41 Contents lists available at ScienceDirect Journal of Invertebrate Pathology journal homepage: www.elsevier.com/locate/jip Insect pathogens as biological control agents: Back to the future ⇑ L.A. Lacey a, , D. Grzywacz b, D.I. Shapiro-Ilan c, R. Frutos d, M. Brownbridge e, M.S. Goettel f a IP Consulting International, Yakima, WA, USA b Agriculture Health and Environment Department, Natural Resources Institute, University of Greenwich, Chatham Maritime, Kent ME4 4TB, UK c U.S. Department of Agriculture, Agricultural Research Service, 21 Dunbar Rd., Byron, GA 31008, USA d University of Montpellier 2, UMR 5236 Centre d’Etudes des agents Pathogènes et Biotechnologies pour la Santé (CPBS), UM1-UM2-CNRS, 1919 Route de Mendes, Montpellier, France e Vineland Research and Innovation Centre, 4890 Victoria Avenue North, Box 4000, Vineland Station, Ontario L0R 2E0, Canada f Agriculture and Agri-Food Canada, Lethbridge Research Centre, Lethbridge, Alberta, Canada1 article info abstract Article history: The development and use of entomopathogens as classical, conservation and augmentative biological Received 24 March 2015 control agents have included a number of successes and some setbacks in the past 15 years. In this forum Accepted 17 July 2015 paper we present current information on development, use and future directions of insect-specific Available online 27 July 2015 viruses, bacteria, fungi and nematodes as components of integrated pest management strategies for con- trol of arthropod pests of crops, forests, urban habitats, and insects of medical and veterinary importance. Keywords: Insect pathogenic viruses are a fruitful source of microbial control agents (MCAs), particularly for the con- Microbial control trol of lepidopteran pests.
    [Show full text]
  • Mushroom Presentation
    Who are all these fungi ... Who are all these fungi ... ... and what are they doing in our forests? What are fungi? . eukaryotic (have nuclei) . heterotrophic and absorbent . amoeboid, to unicellular (yeast) to (usually) filamentous . generally don’t move around much . cell walls contain chitin . most reproduce by various types of spores Fungi are Diverse! fungal phyla fungal phyla . Zygomycota . Chytridiomycota . Glomeromycota . Ascomycota . Basidiomycota fungal phyla . Zygomycetes . Chytridiomycetes . Glomeromycetes . Ascomycetes . Basidiomycetes fungal phyla . Zygomycetes . Chytridiomycetes . Glomeromycetes . Ascomycetes . Basidiomycetes Pilobolus Rhizopus Entomophthorales fungal phyla . Zygomycetes . Chytridiomycetes . Glomeromycetes . Ascomycetes . Basidiomycetes chytridiomycosis caused by Batrachochytrium dendrobatidis fungal phyla . Zygomycetes . Chytridiomycetes . Glomeromycetes . Ascomycetes . Basidiomycetes vesicular – arbuscular mycorrhizae fungal phyla . Zygomycetes . Chytridiomycetes . Glomeromycetes . Ascomycetes . Basidiomycetes Ascomycetes (‘sac fungi’) Penicillium yeasts (basidiomycetes and ascomycetes) fungal phyla . Zygomycetes . Chytridiomycetes . Glomeromycetes . Ascomycetes . Basidiomycetes Basidiomycetes (‘club fungi’) smuts rusts + Hymenomycetes (the rest) jelly fungi + Homobasidiomycetes (the rest) Homobasidiomycetes Gasteromycetes how do you increase surface area to hold more basidia? how do you increase surface area to hold more basidia? culinary classification of mushrooms As many, or more than 1.5 million species
    [Show full text]
  • Entomopathogenic Fungal Identification
    Entomopathogenic Fungal Identification updated November 2005 RICHARD A. HUMBER USDA-ARS Plant Protection Research Unit US Plant, Soil & Nutrition Laboratory Tower Road Ithaca, NY 14853-2901 Phone: 607-255-1276 / Fax: 607-255-1132 Email: Richard [email protected] or [email protected] http://arsef.fpsnl.cornell.edu Originally prepared for a workshop jointly sponsored by the American Phytopathological Society and Entomological Society of America Las Vegas, Nevada – 7 November 1998 - 2 - CONTENTS Foreword ......................................................................................................... 4 Important Techniques for Working with Entomopathogenic Fungi Compound micrscopes and Köhler illumination ................................... 5 Slide mounts ........................................................................................ 5 Key to Major Genera of Fungal Entomopathogens ........................................... 7 Brief Glossary of Mycological Terms ................................................................. 12 Fungal Genera Zygomycota: Entomophthorales Batkoa (Entomophthoraceae) ............................................................... 13 Conidiobolus (Ancylistaceae) .............................................................. 14 Entomophaga (Entomophthoraceae) .................................................. 15 Entomophthora (Entomophthoraceae) ............................................... 16 Neozygites (Neozygitaceae) ................................................................. 17 Pandora
    [Show full text]
  • Lincoln University Digital Thesis
    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. Endophytic fungi associated with cabbage in New Zealand and their potential for biological control A thesis submitted in partial fulfilment of the requirements for the Degree of Doctor of Philosophy at Lincoln University by Michal Kuch´ar Bio-Protection Research Centre Lincoln University, New Zealand 2019 Abstract Agricultural crops such as cabbage (Brassica oleracea var. capitata) are vulnerable to a plethora of pests and diseases. Endophytic fungi are increasingly used in biological control against these pests and diseases as agricultural producers attempt to reduce their environmental footprint. In this study, putative endophytic fungi were isolated from cabbage grown in three regions in New Zealand in order to identify isolates with potential to assist crop production. Isolation method was optimised in an exploratory study, and subsequently large scale sampling took place, where a culture-independent method was also used to detect fungi associated with cabbage. Spatial patterns in fungal communities in various plant tissues and geographical regions were investigated based on data obtained by culture-dependent and culture-independent methods.
    [Show full text]
  • Simmonsa,*, Timothy Y
    mycological research 113 (2009) 450–460 journal homepage: www.elsevier.com/locate/mycres Lobulomycetales, a new order in the Chytridiomycota D. Rabern SIMMONSa,*, Timothy Y. JAMESb, Allen F. MEYERc, Joyce E. LONGCOREa aSchool of Biology and Ecology, University of Maine, Orono, ME 04469, USA bDepartment of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI 48109, USA cDepartment of Ecology and Evolutionary Biology, University of Colorado, Boulder, CO 80309, USA article info abstract Article history: The Chytridiales, one of the four orders in the Chytridiomycetes (Chytridiomycota), is polyphy- Received 13 February 2008 letic, but contains several well-supported clades. One of these clades is referred to as the Received in revised form Chytriomyces angularis clade, and the phylogenetic placement of this group within the Chy- 23 October 2008 tridiomycetes is uncertain. The morphology and zoospore ultrastructure of C. angularis have Accepted 13 November 2008 been studied using LM and were shown to differ from those of the type species of Chytrio- Published online 25 December 2008 myces, which is in the Chytridiaceae and is phylogenetically distinct from the C. angularis Corresponding Editor: clade. In this study, chytrids with morphologies or rDNA sequences similar to C. angularis, Gordon W. Beakes including two isolates of the morphologically similar C. poculatus, were isolated and their phylogenetic relationships determined using molecular sequence data. Results of Bayesian Keywords: and MP analyses of nuSSU and partial nuLSU rDNA sequences grouped the new isolates Chytridium polysiphoniae and the type isolate of C. angularis in a monophyletic clade within the Chytridiomycota Clydaea but distinct from the Chytridiaceae.
    [Show full text]
  • Comparative Genomics of Chytrid Fungi Reveal Insights Into the Obligate
    www.nature.com/scientificreports OPEN Comparative genomics of chytrid fungi reveal insights into the obligate biotrophic and Received: 4 February 2019 Accepted: 31 May 2019 pathogenic lifestyle of Synchytrium Published: xx xx xxxx endobioticum Bart T. L. H. van de Vossenberg1,2, Sven Warris 1, Hai D. T. Nguyen3, Marga P. E. van Gent-Pelzer1, David L. Joly 4, Henri C. van de Geest1, Peter J. M. Bonants1, Donna S. Smith5, C. André Lévesque 3 & Theo A. J. van der Lee1 Synchytrium endobioticum is an obligate biotrophic soilborne Chytridiomycota (chytrid) species that causes potato wart disease, and represents the most basal lineage among the fungal plant pathogens. We have chosen a functional genomics approach exploiting knowledge acquired from other fungal taxa and compared this to several saprobic and pathogenic chytrid species. Observations linked to obligate biotrophy, genome plasticity and pathogenicity are reported. Essential purine pathway genes were found uniquely absent in S. endobioticum, suggesting that it relies on scavenging guanine from its host for survival. The small gene-dense and intron-rich chytrid genomes were not protected for genome duplications by repeat-induced point mutation. Both pathogenic chytrids Batrachochytrium dendrobatidis and S. endobioticum contained the largest amounts of repeats, and we identifed S. endobioticum specifc candidate efectors that are associated with repeat-rich regions. These candidate efectors share a highly conserved motif, and show isolate specifc duplications. A reduced set of cell wall degrading enzymes, and LysM protein expansions were found in S. endobioticum, which may prevent triggering plant defense responses. Our study underlines the high diversity in chytrids compared to the well-studied Ascomycota and Basidiomycota, refects characteristic biological diferences between the phyla, and shows commonalities in genomic features among pathogenic fungi.
    [Show full text]
  • XI International Fungal Biology Conference
    XI International Fungal Biology Conference Karlsruhe, Germany 29th September – 3rd October 2013 KARLSRUHE INSTITUTE OF TECHNOLOGY KIT – University of the State of Baden-Wuerttemberg and National Research Center of the Helmholtz Association www.kit.edu SCIENTIFIC PROGRAM MONDAY, 30.09.2013 SUNDAY, 29.09.2013 08:30 – 10:30 Poster session talks: Pathogenic fungi 16:00 – 16:15 Welcome Addresses PLENARY SESSION: PLANT FUNGAL 16:15 – 17:00 OPENING LECTURE Raymond J. St. Leger, INTERACTIONS College Park, MD, USA Chairs: Regine Kahmann “How to use a fungus to combat Marburg, Germany malaria” Nick Talbot Exeter, UK PLENARY SESSION: HOST-PATHOGEN 11:00 – 11:30 Martijn Rep INTERACTIONS Amsterdam, The Netherlands Chairs: A. Brakhage “Speculations on the evolution Jena, Germany of host-specific pathogenicity in the Fusarium oxysporum species 17:30 – 18:00 Clarissa Nobile complex” San Francisco, USA “A sticky situation: unraveling how 11:30 – 12:00 Richard O’Connell Candida albicans forms biofilms“ Cologne, Germany “Insights into Colletotrichum 18:00 – 18:30 Robin May hemibiotrophy from genome and Birmingham, UK transcriptome sequencing” „Hijacking of the immune system by a fatal fungal pathogen“ 12:00 – 12:30 Ane Sesma Madrid, Spain 18:30 – 19:00 Markus Künzler “Post-transcriptional regulation of Zürich, Switzerland Magnaporthe oryzae pathogenicity „Fungi as hosts of ‚pathogens‘: genes” Defense mechanisms of multicel- lular fungi against fungivorous nematodes“ PLENARY SESSION: CELL BIOLOGY AND TROPIC GROWTH 19:00 Welcome Reception Chairs: Mertixell
    [Show full text]
  • Toward a Fully Resolved Fungal Tree of Life
    Annual Review of Microbiology Toward a Fully Resolved Fungal Tree of Life Timothy Y. James,1 Jason E. Stajich,2 Chris Todd Hittinger,3 and Antonis Rokas4 1Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, Michigan 48109, USA; email: [email protected] 2Department of Microbiology and Plant Pathology, Institute for Integrative Genome Biology, University of California, Riverside, California 92521, USA; email: [email protected] 3Laboratory of Genetics, DOE Great Lakes Bioenergy Research Center, Wisconsin Energy Institute, Center for Genomic Science and Innovation, J.F. Crow Institute for the Study of Evolution, University of Wisconsin–Madison, Madison, Wisconsin 53726, USA; email: [email protected] 4Department of Biological Sciences, Vanderbilt University, Nashville, Tennessee 37235, USA; email: [email protected] Annu. Rev. Microbiol. 2020. 74:291–313 Keywords First published as a Review in Advance on deep phylogeny, phylogenomic inference, uncultured majority, July 13, 2020 classification, systematics The Annual Review of Microbiology is online at micro.annualreviews.org Abstract https://doi.org/10.1146/annurev-micro-022020- Access provided by Vanderbilt University on 06/28/21. For personal use only. In this review, we discuss the current status and future challenges for fully 051835 Annu. Rev. Microbiol. 2020.74:291-313. Downloaded from www.annualreviews.org elucidating the fungal tree of life. In the last 15 years, advances in genomic Copyright © 2020 by Annual Reviews. technologies have revolutionized fungal systematics, ushering the field into All rights reserved the phylogenomic era. This has made the unthinkable possible, namely ac- cess to the entire genetic record of all known extant taxa.
    [Show full text]