First Record of Pythium Oligandrum from Libya Soli
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Old Woman Creek National Estuarine Research Reserve Management Plan 2011-2016
Old Woman Creek National Estuarine Research Reserve Management Plan 2011-2016 April 1981 Revised, May 1982 2nd revision, April 1983 3rd revision, December 1999 4th revision, May 2011 Prepared for U.S. Department of Commerce Ohio Department of Natural Resources National Oceanic and Atmospheric Administration Division of Wildlife Office of Ocean and Coastal Resource Management 2045 Morse Road, Bldg. G Estuarine Reserves Division Columbus, Ohio 1305 East West Highway 43229-6693 Silver Spring, MD 20910 This management plan has been developed in accordance with NOAA regulations, including all provisions for public involvement. It is consistent with the congressional intent of Section 315 of the Coastal Zone Management Act of 1972, as amended, and the provisions of the Ohio Coastal Management Program. OWC NERR Management Plan, 2011 - 2016 Acknowledgements This management plan was prepared by the staff and Advisory Council of the Old Woman Creek National Estuarine Research Reserve (OWC NERR), in collaboration with the Ohio Department of Natural Resources-Division of Wildlife. Participants in the planning process included: Manager, Frank Lopez; Research Coordinator, Dr. David Klarer; Coastal Training Program Coordinator, Heather Elmer; Education Coordinator, Ann Keefe; Education Specialist Phoebe Van Zoest; and Office Assistant, Gloria Pasterak. Other Reserve staff including Dick Boyer and Marje Bernhardt contributed their expertise to numerous planning meetings. The Reserve is grateful for the input and recommendations provided by members of the Old Woman Creek NERR Advisory Council. The Reserve is appreciative of the review, guidance, and council of Division of Wildlife Executive Administrator Dave Scott and the mapping expertise of Keith Lott and the late Steve Barry. -
Pythium Ultimum Species Complex
Resolving thePythium ultimum species complex by Quinn Eggertson A thesis submitted to the Faculty of Graduate and Postdoctoral Affairs partial fulfillment of the requirements for the degree of Master of Science in Biology Carleton University Ottawa, Ontario ©2012 Quinn Eggertson Library and Archives Bibliotheque et Canada Archives Canada Published Heritage Direction du 1+1 Branch Patrimoine de I'edition 395 Wellington Street 395, rue Wellington Ottawa ON K1A0N4 Ottawa ON K1A 0N4 Canada Canada Your file Votre reference ISBN: 978-0-494-93569-9 Our file Notre reference ISBN: 978-0-494-93569-9 NOTICE: AVIS: The author has granted a non L'auteur a accorde une licence non exclusive exclusive license allowing Library and permettant a la Bibliotheque et Archives Archives Canada to reproduce, Canada de reproduire, publier, archiver, publish, archive, preserve, conserve, sauvegarder, conserver, transmettre au public communicate to the public by par telecommunication ou par I'lnternet, preter, telecommunication or on the Internet, distribuer et vendre des theses partout dans le loan, distrbute and sell theses monde, a des fins commerciales ou autres, sur worldwide, for commercial or non support microforme, papier, electronique et/ou commercial purposes, in microform, autres formats. paper, electronic and/or any other formats. The author retains copyright L'auteur conserve la propriete du droit d'auteur ownership and moral rights in this et des droits moraux qui protege cette these. Ni thesis. Neither the thesis nor la these ni des extraits substantiels de celle-ci substantial extracts from it may be ne doivent etre imprimes ou autrement printed or otherwise reproduced reproduits sans son autorisation. -
Enhancement of Development and Induction of Resistance in Tomato
Enhancement of development and induction of resistance in tomato plants by the antagonist, Pythium oligandrum Gaétan Le Floch, Patrice Rey, Franck Déniel, Nicole Benhamou, Karine Picard, Yves Tirilly To cite this version: Gaétan Le Floch, Patrice Rey, Franck Déniel, Nicole Benhamou, Karine Picard, et al.. Enhancement of development and induction of resistance in tomato plants by the antagonist, Pythium oligandrum. Agronomie, EDP Sciences, 2003, 23 (5-6), pp.455-460. 10.1051/agro:2003018. hal-00886197 HAL Id: hal-00886197 https://hal.archives-ouvertes.fr/hal-00886197 Submitted on 1 Jan 2003 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Agronomie 23 (2003) 455–460 455 © INRA, EDP Sciences, 2003 DOI: 10.1051/agro:2003018 Original article Enhancement of development and induction of resistance in tomato plants by the antagonist, Pythium oligandrum Gaétan LE FLOCHa, Patrice REYa*, Franck DÉNIELa, Nicole BENHAMOUb, Karine PICARDa, Yves TIRILLYa a Laboratoire de Microbiologie, Université de Bretagne Occidentale-Brest, Technopôle Brest-Iroise, 29280 Plouzané, France b Département Recherche en Sciences de la Vie et de la Santé, Pav. Ch.E. Marchand, Université Laval, Sainte-Foy, Québec, GIK7P4, Canada (Received 3 July 2002; accepted 18 December 2002) Abstract – To exert an optimal biological control, P. -
The Genus Pythium in Mainland China
菌物学报 [email protected] 8 April 2013, 32(增刊): 20-44 Http://journals.im.ac.cn Mycosystema ISSN1672-6472 CN11-5180/Q © 2013 IMCAS, all rights reserved. The genus Pythium in mainland China HO Hon-Hing* Department of Biology, State University of New York, New Paltz, New York 12561, USA Abstract: A historical review of studies on the genus Pythium in mainland China was conducted, covering the occurrence, distribution, taxonomy, pathogenicity, plant disease control and its utilization. To date, 64 species of Pythium have been reported and 13 were described as new to the world: P. acrogynum, P. amasculinum, P. b ai sen se , P. boreale, P. breve, P. connatum, P. falciforme, P. guiyangense, P. guangxiense, P. hypoandrum, P. kummingense, P. nanningense and P. sinensis. The dominant species is P. aphanidermatum causing serious damping off and rotting of roots, stems, leaves and fruits of a wide variety of plants throughout the country. Most of the Pythium species are pathogenic with 44 species parasitic on plants, one on the red alga, Porphyra: P. porphyrae, two on mosquito larvae: P. carolinianum and P. guiyangense and two mycoparasitic: P. nunn and P. oligandrum. In comparison, 48 and 28 species have been reported, respectively, from Taiwan and Hainan Island with one new species described in Taiwan: P. sukuiense. The prospect of future study on the genus Pythium in mainland China was discussed. Key words: Pythiaceae, taxonomy, Oomycetes, Chromista, Straminopila 中国大陆的腐霉属菌物 何汉兴* 美国纽约州立大学 纽约 新帕尔茨 12561 摘 要:综述了中国大陆腐霉属的研究进展,内容包括腐霉属菌物的发生、分布、分类鉴定、致病性、所致植物病 害防治及腐霉的利用等方面。至今,中国已报道的腐霉属菌物有 64 个种,其中有 13 个种作为世界新种进行了描述, 这 13 个新种分别为:顶生腐霉 Pythium acrogynum,孤雌腐霉 P. -
The Taxonomy and Biology of Phytophthora and Pythium
Journal of Bacteriology & Mycology: Open Access Review Article Open Access The taxonomy and biology of Phytophthora and Pythium Abstract Volume 6 Issue 1 - 2018 The genera Phytophthora and Pythium include many economically important species Hon H Ho which have been placed in Kingdom Chromista or Kingdom Straminipila, distinct from Department of Biology, State University of New York, USA Kingdom Fungi. Their taxonomic problems, basic biology and economic importance have been reviewed. Morphologically, both genera are very similar in having coenocytic, hyaline Correspondence: Hon H Ho, Professor of Biology, State and freely branching mycelia, oogonia with usually single oospores but the definitive University of New York, New Paltz, NY 12561, USA, differentiation between them lies in the mode of zoospore differentiation and discharge. Email [email protected] In Phytophthora, the zoospores are differentiated within the sporangium proper and when mature, released in an evanescent vesicle at the sporangial apex, whereas in Pythium, the Received: January 23, 2018 | Published: February 12, 2018 protoplast of a sporangium is transferred usually through an exit tube to a thin vesicle outside the sporangium where zoospores are differentiated and released upon the rupture of the vesicle. Many species of Phytophthora are destructive pathogens of especially dicotyledonous woody trees, shrubs and herbaceous plants whereas Pythium species attacked primarily monocotyledonous herbaceous plants, whereas some cause diseases in fishes, red algae and mammals including humans. However, several mycoparasitic and entomopathogenic species of Pythium have been utilized respectively, to successfully control other plant pathogenic fungi and harmful insects including mosquitoes while the others utilized to produce valuable chemicals for pharmacy and food industry. -
Beneficial Effects of the Oomycete Pythium Oligandrum on Grapevines - Jonathan Gerbore - University of Pau Et Des Pays De L’Adour
Short Communication Journal of Applied Microbiology and Biochemistry 2020 Vol.4 No.4 Applied Microbiology 2016- Microorganisms to protect plants: Beneficial effects of the oomycete Pythium oligandrum on grapevines - Jonathan Gerbore - University of Pau et des Pays de l’Adour Jonathan Gerbore University of Pau et des Pays de l’Adour, France Abstract Development of alternative methods to chemical pesticides to In soilless cultures, the recycling of drainage water within a control plant diseases increased considerably in recent years. system is that the consequence of latest laws concerning water Among those, the useful and beneficial microorganisms for saving and limitation of pollution. Such closed systems plant growth stimulation and plant protection is promising, minimize costs by conserving water and reducing fertilizer especially under recent advances in trancriptomics and genome input; however, they'll favor the dissemination of pathogens. sequencing that provides new insights in the potential of When pathogens manage to enter recirculation systems, they're microorganisms and new product development opportunities. rapidly disseminated and will cause disease epidemics, Our report of development of a biocontrol product base on the particularly during times of stress, e.g., stress because of high oomycete, Pythium oligandrum, to protect grape. Oligandrum temperatures and/or to low levels of dissolved oxygen within ine against Escape, a serious grapevine trunk disease that the nutrient solution. Thus, numerous facultative pathogens causes substantial losses in vineyards worldwide. There are No commonly found in conventional cultures may become efficient chemical products are registered against this disease. economically significant (53). Several of them, e.g., Pythium In order to control Esca, P. -
Two Species of Phytopythium (Pythiaceae, Pythiales) New to China
Journal of Microbiology & Experimentation Research Article Open Access Two species of Phytopythium (Pythiaceae, Pythiales) new to China Abstract Volume 7 Issue 5 - 2019 Two oomycetes, Phytopythium mercuriale and Pp. sindhum were found in southern China, Jia-Jia Chen,1,2 Hui Feng,1 Xiaobo Zheng1 and they are newly recorded in China. These two species were both isolated from roots of 1Department of Plant Pathology, Nanjing Agricultural University, soybean. Pp. mercuriale is characterized by subglobose sporangia with conspicuous apical China papillae, and occasionally forming oogonia. And Pp. sindhum is identified from other 2College of Landscape Architecture, Jiangsu Vocational College Phytopythium species by its globose to sub-globose sporangia with conspicuous apical of Agriculture and Forestry, China papillae, large and smooth oogonia, monoclinous or diclinous antheridia, and plerotic or nearly plerotic and thick-walled oospores. Illustrations and descriptions of the two new Correspondence: Xiaobo Zheng, Department of Plant records are provided based on the materials from China. Pathology, Nanjing Agricultural University, Nanjing 210095, China, Tel 18362090654, Email Keywords: Cox1, ITS, Oomycota, Phytopythium mercuriale, Phytopythium sindhum Received: August 09, 2019 | Published: September 16, 2019 Abbreviations: BI, bayesian inference; BPP, bayesian posterior in China. The isolation procedure followed the method described by probabilities; BT, bootstrap; CMA, corn meal agar; CI, consistency Benard & Punja.11 Pieces of tissue 5–10mm were cut from the roots, index; Cox1, cytochrome c oxidase subunit 1; GTR, general time washed in tap water and superficially dried on a paper towel, and plated reversible; HI, homoplasy index; ITS, the internal transcribed spacer; on CMA containing rifampicin (50mg/L), phenamacril (5mg/L), MP, maximum parsimony; MPT, maximum parsimonious tree; NJAU, ampicillin (50mg/L), and pentachloronitrobenzene (50mg/L) and the College of Plant Protection, Nanjing Agricultural University; incubated at 25°C for 2–3d. -
Abbreviations
Abbreviations AfDD Acriflavine direct detection AODC Acridine orange direct count ARA Arachidonic acid BPE Bleach plant effluent Bya Billion years ago CFU Colony forming unit DGGE Denaturing gradient gel electrophoresis DHA Docosahexaenoic acid DOC Dissolved organic carbon DOM Dissolved organic matter DSE Dark septate endophyte EN Ectoplasmic net EPA Eicosapentaenoic acid FITC Fluorescein isothiocyanate GPP Gross primary production ITS Internal transcribed spacer LDE Lignin-degrading enzyme LSU Large subunit MAA Mycosporine-like amino acid MBSF Metres below surface Mpa Megapascal MPN Most probable number MSW Molasses spent wash MUFA Monounsaturated fatty acid Mya Million years ago NPP Net primary production OMZ Oxygen minimum zone OUT Operational taxonomic unit PAH Polyaromatic hydrocarbon PCR Polymerase chain reaction © Springer International Publishing AG 2017 345 S. Raghukumar, Fungi in Coastal and Oceanic Marine Ecosystems, DOI 10.1007/978-3-319-54304-8 346 Abbreviations POC Particulate organic carbon POM Particulate organic matter PP Primary production Ppt Parts per thousand PUFA Polyunsaturated fatty acid QPX Quahog parasite unknown SAR Stramenopile Alveolate Rhizaria SFA Saturated fatty acid SSU Small subunit TEPS Transparent Extracellular Polysaccharides References Abdel-Waheb MA, El-Sharouny HM (2002) Ecology of subtropical mangrove fungi with empha- sis on Kandelia candel mycota. In: Kevin D (ed) Fungi in marine environments. Fungal Diversity Press, Hong Kong, pp 247–265 Abe F, Miura T, Nagahama T (2001) Isolation of highly copper-tolerant yeast, Cryptococcus sp., from the Japan Trench and the induction of superoxide dismutase activity by Cu2+. Biotechnol Lett 23:2027–2034 Abe F, Minegishi H, Miura T, Nagahama T, Usami R, Horikoshi K (2006) Characterization of cold- and high-pressure-active polygalacturonases from a deep-sea yeast, Cryptococcus liquefaciens strain N6. -
Biological Control Methods for Damping-Off of Tomato Seedlings Caused by Pythium Myriotylum
University of Tennessee, Knoxville TRACE: Tennessee Research and Creative Exchange Masters Theses Graduate School 5-2006 Biological Control Methods for Damping-off of Tomato Seedlings Caused by Pythium myriotylum Miranda Marshall Clark University of Tennessee - Knoxville Follow this and additional works at: https://trace.tennessee.edu/utk_gradthes Part of the Entomology Commons Recommended Citation Clark, Miranda Marshall, "Biological Control Methods for Damping-off of Tomato Seedlings Caused by Pythium myriotylum. " Master's Thesis, University of Tennessee, 2006. https://trace.tennessee.edu/utk_gradthes/1527 This Thesis is brought to you for free and open access by the Graduate School at TRACE: Tennessee Research and Creative Exchange. It has been accepted for inclusion in Masters Theses by an authorized administrator of TRACE: Tennessee Research and Creative Exchange. For more information, please contact [email protected]. To the Graduate Council: I am submitting herewith a thesis written by Miranda Marshall Clark entitled "Biological Control Methods for Damping-off of Tomato Seedlings Caused by Pythium myriotylum." I have examined the final electronic copy of this thesis for form and content and recommend that it be accepted in partial fulfillment of the equirr ements for the degree of Master of Science, with a major in Entomology and Plant Pathology. Kimberly D. Gwinn, Major Professor We have read this thesis and recommend its acceptance: Bonnie H. Ownley, Ernest C. Bernard, Craig H. Canaday Accepted for the Council: Carolyn R. Hodges -
QUANTITATIVE and QUALITATIVE COMPOSITION of RHIZOSPHERE MICROORGANISMS of PEA (Pisum Sativum
R-04 QUANTITATIVE AND QUALITATIVE COMPOSITION OF RHIZOSPHERE MICROORGANISMS OF PEA (Pisum sativum. L) AFTER APPLYING BIOPREPARATIONS Alina Pastucha, Elżbieta Patkowska, Danuta Pięta Department of Plant Pathology, University of Agriculture in Lublin, ul. Kr. Leszczyńskiego 7, 20-069 Lublin, Poland e-mail: [email protected] 1. Introduction Progress which has taken place in the last decade in the sphere of research on the use of biopreparations, antagonistic microorganisms, composts and plant extracts in controlling soil pathogens is especially significant. Compounds of plant and animal origin which are secondary metabolites play an increasing role both in the prophylaxis and direct control of plant pathogens. These compounds include phenols, polyphenols, flavonoids and tannins, occurring in a free or bound form. They occur for example in such biopreparations as Bio- chikol 020 PC, Biosept 33 SL, whereas Polyversum contains oospores of antagonistic fungu Pythium oligandrum Polyversum [1, 2]. Biopreparations Polyversum, Biochikol 020 PC, Biosept 33 SL, used as dressing for papili- onaceous plants, or as foliar application inhibited the development of pathogens [3 - 6]. In literature there is no information concerning the effect of biopreparations on the com- position of microorganism communities in the soil environment. Hence, the purpose of the present studies was to determine the effect of Polyversum, Biochikol 020 PC and Biosept 33 SL on the quantitative and qualitative composition of bacteria and fungi in the Rhizo- sphere soil of pea. 2. Material and methods Field studies were conducted in the area of the Experimental Station at Czesławice near Nałęczów in the years 2005-2006. The object of the studies was the rhizosphere soil of pea cv. -
Single Cell Transcriptomics, Mega-Phylogeny and the Genetic Basis Of
bioRxiv preprint doi: https://doi.org/10.1101/064030; this version posted July 15, 2016. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY 4.0 International license. 1 Single cell transcriptomics, mega-phylogeny and the genetic basis of 2 morphological innovations in Rhizaria 3 4 Anders K. Krabberød1, Russell J. S. Orr1, Jon Bråte1, Tom Kristensen1, Kjell R. Bjørklund2 & Kamran 5 ShalChian-Tabrizi1* 6 7 1Department of BiosCienCes, Centre for Integrative MiCrobial Evolution and Centre for EpigenetiCs, 8 Development and Evolution, University of Oslo, Norway 9 2Natural History Museum, Department of ResearCh and ColleCtions University of Oslo, Norway 10 11 *Corresponding author: 12 Kamran ShalChian-Tabrizi 13 [email protected] 14 Mobile: + 47 41045328 15 16 17 Keywords: Cytoskeleton, phylogeny, protists, Radiolaria, Rhizaria, SAR, single-cell, transCriptomiCs 1 bioRxiv preprint doi: https://doi.org/10.1101/064030; this version posted July 15, 2016. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY 4.0 International license. 18 Abstract 19 The innovation of the eukaryote Cytoskeleton enabled phagoCytosis, intracellular transport and 20 Cytokinesis, and is responsible for diverse eukaryotiC morphologies. Still, the relationship between 21 phenotypiC innovations in the Cytoskeleton and their underlying genotype is poorly understood. 22 To explore the genetiC meChanism of morphologiCal evolution of the eukaryotiC Cytoskeleton we 23 provide the first single Cell transCriptomes from unCultivable, free-living uniCellular eukaryotes: the 24 radiolarian speCies Lithomelissa setosa and Sticholonche zanclea. -
Exploitation of the Mycoparasitic Fungus Pythium Oligandrum in Plant Protection
Plant Protection Science – 2002 Vol. 38, No. 1: 29–35 REVIEW Exploitation of the Mycoparasitic Fungus Pythium oligandrum in Plant Protection JANA BROOVÁ Research Institute of Crop Production Division of Plant Medicine, Prague-Ruzynì, Czech Republic Abstract BROOVÁ J. (2002): Exploitation of the mycoparasitic fungus Pythium oligandrum in plant protection. Plant Protect. Sci., 38: 2935. Pythium oligandrum Drechs. belongs to the order Oomycetes. It is parasitic on many fungi from the same or other orders. The antagonism of P. oligandrum is a multifaceted process dependent on the target species involved. P. oligandrum is nonpathogenic on 12 species of crops from six families. It does not attack their tissue but occurs on the root surface, predominantly in the regions of hypocotyl – taproot, together with plant pathogenic fungi. It utilises the root exudates and fungus hyphae on the root surface, including those of the plant pathogens, for its own support. A growth stimulation of plants was observed. P. oligandrum can be utilised for biological control on a wide spectrum of crop plants. Different methods of application have been developed. The effect of a mycoparasite preparation is more preventive. Keywords: biological control; soil fungi; antagonism; rhizosphere; growth stimulation; Botrytis cinerea The importance of plant protection in modern agricul- fungi from the same or other orders (Table 1). It can pene- ture increases as crop yields and concerns about produc- trate their hyphae and live on the contents. tion quality rise. Plant protection should be sufficiently Some genera, species and isolates of fungi are more effective, affordable and considerate of the environment. susceptible to attack by P.