Identification and Nomenclature of the Genus Penicillium
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Ergot Alkaloids Mycotoxins in Cereals and Cereal-Derived Food Products: Characteristics, Toxicity, Prevalence, and Control Strategies
agronomy Review Ergot Alkaloids Mycotoxins in Cereals and Cereal-Derived Food Products: Characteristics, Toxicity, Prevalence, and Control Strategies Sofia Agriopoulou Department of Food Science and Technology, University of the Peloponnese, Antikalamos, 24100 Kalamata, Greece; [email protected]; Tel.: +30-27210-45271 Abstract: Ergot alkaloids (EAs) are a group of mycotoxins that are mainly produced from the plant pathogen Claviceps. Claviceps purpurea is one of the most important species, being a major producer of EAs that infect more than 400 species of monocotyledonous plants. Rye, barley, wheat, millet, oats, and triticale are the main crops affected by EAs, with rye having the highest rates of fungal infection. The 12 major EAs are ergometrine (Em), ergotamine (Et), ergocristine (Ecr), ergokryptine (Ekr), ergosine (Es), and ergocornine (Eco) and their epimers ergotaminine (Etn), egometrinine (Emn), egocristinine (Ecrn), ergokryptinine (Ekrn), ergocroninine (Econ), and ergosinine (Esn). Given that many food products are based on cereals (such as bread, pasta, cookies, baby food, and confectionery), the surveillance of these toxic substances is imperative. Although acute mycotoxicosis by EAs is rare, EAs remain a source of concern for human and animal health as food contamination by EAs has recently increased. Environmental conditions, such as low temperatures and humid weather before and during flowering, influence contamination agricultural products by EAs, contributing to the Citation: Agriopoulou, S. Ergot Alkaloids Mycotoxins in Cereals and appearance of outbreak after the consumption of contaminated products. The present work aims to Cereal-Derived Food Products: present the recent advances in the occurrence of EAs in some food products with emphasis mainly Characteristics, Toxicity, Prevalence, on grains and grain-based products, as well as their toxicity and control strategies. -
Isolation of Fungal Cellulase Gene Transcript from Penicillium Spinulosum
Isolation of fungal cellulase gene transcript from Penicillium spinulosum A Master’s Thesis Presented to the faculty of The College of Science and Mathematics Colorado State University – Pueblo In Partial Fulfillment of the requirements for the degree of Master of Science in Biochemistry By Srivatsan Parthasarathy Colorado State University – Pueblo May, 2018 ACKNOWLEDGEMENTS I would like to thank my research mentor Dr. Sandra Bonetti for guiding me through my research thesis and helping me in difficult times during my Master’s degree. I would like to thank Dr. Dan Caprioglio for helping me plan my experiments and providing the lab space and equipment. I would like to thank the department of Biology and Chemistry for supporting me through assistantships and scholarships. I would like to thank my wife Vaishnavi Nagarajan for the emotional support that helped me complete my degree at Colorado State University – Pueblo. III TABLE OF CONTENTS 1) ACKNOWLEDGEMENTS …………………………………………………….III 2) TABLE OF CONTENTS …………………………………………………….....IV 3) ABSTRACT……………………………………………………………………..V 4) LIST OF FIGURES……………………………………………………………..VI 5) LIST OF TABLES………………………………………………………………VII 6) INTRODUCTION………………………………………………………………1 7) MATERIALS AND METHODS………………………………………………..24 8) RESULTS………………………………………………………………………..50 9) DISCUSSION…………………………………………………………………….77 10) REFERENCES…………………………………………………………………...99 11) THESIS PRESENTATION SLIDES……………………………………………...113 IV ABSTRACT Cellulose and cellulosic materials constitute over 85% of polysaccharides in landfills. Cellulose is also the most abundant organic polymer on earth. Cellulose digestion yields simple sugars that can be used to produce biofuels. Cellulose breaks down to form compounds like hemicelluloses and lignins that are useful in energy production. Industrial cellulolysis is a process that involves multiple acidic and thermal treatments that are harsh and intensive. -
The Evolution of Secondary Metabolism Regulation and Pathways in the Aspergillus Genus
THE EVOLUTION OF SECONDARY METABOLISM REGULATION AND PATHWAYS IN THE ASPERGILLUS GENUS By Abigail Lind Dissertation Submitted to the Faculty of the Graduate School of Vanderbilt University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY in Biomedical Informatics August 11, 2017 Nashville, Tennessee Approved: Antonis Rokas, Ph.D. Tony Capra, Ph.D. Patrick Abbot, Ph.D. Louise Rollins-Smith, Ph.D. Qi Liu, Ph.D. ACKNOWLEDGEMENTS Many people helped and encouraged me during my years working towards this dissertation. First, I want to thank my advisor, Antonis Rokas, for his support for the past five years. His consistent optimism encouraged me to overcome obstacles, and his scientific insight helped me place my work in a broader scientific context. My committee members, Patrick Abbot, Tony Capra, Louise Rollins-Smith, and Qi Liu have also provided support and encouragement. I have been lucky to work with great people in the Rokas lab who helped me develop ideas, suggested new approaches to problems, and provided constant support. In particular, I want to thank Jen Wisecaver for her mentorship, brilliant suggestions on how to visualize and present my work, and for always being available to talk about science. I also want to thank Xiaofan Zhou for always providing a new perspective on solving a problem. Much of my research at Vanderbilt was only possible with the help of great collaborators. I have had the privilege of working with many great labs, and I want to thank Ana Calvo, Nancy Keller, Gustavo Goldman, Fernando Rodrigues, and members of all of their labs for making the research in my dissertation possible. -
<I>Aspergillus Flavus</I> and <I>Aspergillus Parasiticus</I
1395 Journal of Food Protection, Vol. 58, No. 12, Pages 1395-1404 Copyrighl©, International Association of Milk, Food and Environmental Sanitarians Aspergillus flavus and Aspergillus parasiticus: Aflatoxigenic Fungi of Concern in Foods and Feedst: A Review HASSAN GOURAMA* and LLOYD B. BULLERMAN* Department of Food Science and Technology, University of Nebraska, Lincoln, Nebraska 68583-0919 USA Downloaded from http://meridian.allenpress.com/jfp/article-pdf/58/12/1395/1665895/0362-028x-58_12_1395.pdf by guest on 02 October 2021 (MS# 91-230: Received 22 December 19911Accepted 15 May 1995) ABSTRACT isolates are still used as specific names, e.g., Aspergillus capitatus, Aspergillus niger, etc. (98). Aspergillus are com- Aspergillusflavus and the closely related subspeciesparasiticus have long been recognized as major contaminants of organic and mon saprobic molds, which grow in a wide range of natural nonorganic items. A. flavus, a common soil fungus, can infest a wide substrates and climatic conditions. Austwick (8) reported that range of agricultural products. Some A. flavus varieties produce one conidial head may produce up to 50,000 spores. Aspergil- aflatoxins, which are carcinogenic toxins that induce liver cancer in lus spp. are of particular importance to humans. Although laboratory animals. A.flavus var.flavus, A.flavus subsp. parasiticus, many Aspergillus species are considered pathogens or spoil- and A. nomius share the ability to produce aflatoxins. Identification age organisms, many others are beneficial. Some species are of the A. flavus species group is mainly based on the color and used to prepare fermented foods (57). Aspergillus spp. can macroscopic and microscopic characteristics of the fungus. -
Microbiology Immunology Cent
years This booklet was created by Ashley T. Haase, MD, Regents Professor and Head of the Department of Microbiology and Immunology, with invaluable input from current and former faculty, students, and staff. Acknowledgements to Colleen O’Neill, Department Administrator, for editorial and research assistance; the ASM Center for the History of Microbiology and Erik Moore, University Archivist, for historical documents and photos; and Ryan Kueser and the Medical School Office of Communications & Marketing, for design and production assistance. UMN Microbiology & Immunology 2019 Centennial Introduction CELEBRATING A CENTURY OF MICROBIOLOGY & IMMUNOLOGY This brief history captures the last half century from the last history and features foundational ideas and individuals who played prominent roles through their scientific contributions and leadership in microbiology and immunology at the University of Minnesota since the founding of the University in 1851. 1. UMN Microbiology & Immunology 2019 Centennial Microbiology at Minnesota MICROBIOLOGY AT MINNESOTA Microbiology at Minnesota has been From the beginning, faculty have studied distinguished from the beginning by the bacteria, viruses, and fungi relevant to breadth of the microorganisms studied important infectious diseases, from and by the disciplines and sub-disciplines early studies of diphtheria and rabies, represented in the research and teaching of through poliomyelitis, streptococcal and the faculty. The Microbiology Department staphylococcal infection to the present itself, as an integral part of the Medical day, HIV/AIDS and co-morbidities, TB and School since the department’s inception cryptococcal infections, and influenza. in 1918-1919, has been distinguished Beyond medical microbiology, veterinary too by its breadth, serving historically microbiology, microbial physiology, as the organizational center for all industrial microbiology, environmental microbiological teaching and research microbiology and ecology, microbial for the whole University. -
Penicillium on Stored Garlic (Blue Mold)
Penicillium on stored garlic (Blue mold) Cause Penicillium hirsutum Dierckx (syn. P.corymbiferum Westling) Occurrence P. hirsutum seems to be the most common and widespread species occurring in storage. This disease occurs at harvest and in storage. Symptoms In storage, initial symptoms are seen as water soaked areas on the outer surfaces of scales. This leads to development of the green-blue, powdery mold on the surface of the lesions. When the bulbs are cut, these lesions are seen as tan or grey colored areas. There may be total deterioration with a secondary watery rot. Penicillium sp. causing a blue-green rot of a garlic head Photo by Melodie Putnam Penicillium sp. on garlic clove Photo by Melodie Putnam Disease Cycle Penicillium survives in infected bulbs and cloves from one season to the next. Spores from infected heads are spread when they are cracked prior to planting. If slightly infected cloves are planted, they may rot before plants come up, or the seedlings may not survive. The fungus does not persist in the soil. Close-up of Penicillium sp. on garlic headad Air-borne spores often invade plants through Photo by Melodie Putnam wounds, bruises or uncured neck tissue. In storage, infection on contact is through surface wounds or through the basal plate; the fungus grows through the fleshy tissue and sporulation occurs on the surface of the lesions. Entire cloves may eventually be filled with spores. Susan B. Jepson, OSU Plant Clinic, 1089 Cordley Hall, Oregon State University, Corvallis, OR 97331-2903 10/23/2008 Management ● Cure bulbs rapidly at harvest ● Avoid wounds or injury to bulbs at harvest, and separate those with insect damage ● Plant cloves soon after cracking heads ● Eliminate infected seed prior to planting ● Store at low temperatures (40 F prevents growth and sporulation), with low humidity and good ventilation References Bertolini, P. -
Diversity and Saline Resistance of Endophytic Fungi Associated with Pinus Thunbergii in Coastal Shelterbelts of Korea Young Ju Min1, Myung Soo Park1, Jonathan J
J. Microbiol. Biotechnol. (2014), 24(3), 324–333 http://dx.doi.org/10.4014/jmb.1310.10041 Research Article jmb Diversity and Saline Resistance of Endophytic Fungi Associated with Pinus thunbergii in Coastal Shelterbelts of Korea Young Ju Min1, Myung Soo Park1, Jonathan J. Fong1, Ying Quan1, Sungcheol Jung2, and Young Woon Lim1* 1School of Biological Sciences, Seoul National University, Seoul 151-747, Republic of Korea 2Warm-Temperate and Subtropical Forest Research Center, KFRI, Seogwipo 697-050, Republic of Korea Received: October 14, 2013 Revised: November 29, 2013 The Black Pine, Pinus thunbergii, is widely distributed along the eastern coast of Korea and its Accepted: December 4, 2013 importance as a shelterbelt was highlighted after tsunamis in Indonesia and Japan. The root endophytic diversity of P. thunbergii was investigated in three coastal regions; Goseong, Uljin, and Busan. Fungi were isolated from the root tips, and growth rates of pure cultures were First published online measured and compared between PDA with and without 3% NaCl to determine their saline December 9, 2013 resistance. A total of 259 isolates were divided into 136 morphotypes, of which internal *Corresponding author transcribed spacer region sequences identified 58 species. Representatives of each major fungi Phone: +82-2-880-6708; phylum were present: 44 Ascomycota, 8 Zygomycota, and 6 Basidiomycota. Eighteen species Fax: +82-2-871-5191; exhibited saline resistance, many of which were Penicillium and Trichoderma species. Shoreline E-mail: [email protected] habitats harbored higher saline-tolerant endophytic diversity compared with inland sites. This investigation indicates that endophytes of P. thunbergii living closer to the coast may have pISSN 1017-7825, eISSN 1738-8872 higher resistance to salinity and potentially have specific relationships with P. -
What Threatens the Safety of Almonds?
OCTOBER 2020 ALL ABOUT ALMONDS FOOD SAFETY WHAT THREATENS FOOD SAFETY IN ALMONDS1 Chemical contamination CONTENTS Chemical contaminants include pesticide residues, allergens and mycotoxins. Aflatoxins are a specific form of mycotoxin. Pesticide residues are minimised by the correct use of registered (or permitted) Page 1: Aflatoxins - chemicals contaminants of concern chemicals. Worldwide, nut aflatoxins are of concern. Aflatoxins are natural but toxic by-products of fungi. They are odourless and Page 2: Risk reduction and prevention colourless, and cannot be visually detected in a food product. They may enter the almond food chain in the orchard, in stockpiles or in Page 4: Biological contaminant - Salmonella storage, and persist in finished, raw product. Page 5: Orchard guidelines for aflatoxin and Biological contamination Salmonella management Biological contaminants include parasites and pathogens that are usually fungal, viral, or bacterial in nature. The most important biological food safety contaminants of almonds are bacterial - Introduction Salmonella spp. and Escherichia coli (E. coli). Both are indicative of food Although almonds are not a readily perishable commodity, they are, exposure to faecal material. These organisms have serious human like other fresh foods, subject to contamination of food safety concern. health consequences, and therefore all food production and handling Almond contaminants are categorised as being chemical, biological, or management must ensure such exposure is minimised. physical in nature. Physical contamination The ‘cost’ of contaminated nuts is multi-faceted. Not only is there a Foreign matter of concern in almonds is that which is solid, and capable potential human cost in terms of health (and occasionally, life), but also of causing human injury or illness, e.g. -
T'he NEW YEAR -The Annual Meeting
t T'HE NEW YEAR -The Annual Meeting The 19th Annual Meeting of the Society cras held in Ithaca, New York on the campus of Cornell University SBptember 8-10, 1952, in conjunction with meetings of other inember societies of the American Institute of Biological Sciences, The arrangements were excellent. Dr, Charles Chupp, our representative on the AIES committee and Chairman of our Committee on Local Arrangements, along with Dr. P1.F. Barrus, Dr. D, S, Welch, and Dr, Richard Korf who served with him on the Local Committee, are to be especially complimented on the fine arrangeinents that were made for the Society, The majority of our members were housed in IJillard Straight Hall since many had arrived early to attend the Annual Foray, The program carried the titles of 77 papers resulting from original research and three special features; the Presidential Address by Dr, J. C, Gilman on "The Pure Culture in Taxonomyu, The Third Annual Lecture of .the Mycological Society of America by Dr. Benjamin M, Duggar who spoke on llCharacteristic of Certain Selected Species of Actinomycetesll and a symposium on "Physiology of Fungit1 which was sponsored jointly by the Bociety and the ~licrobiolo~icalSection of the Botanical Society of Aaerica. Most of our pcper-reading sessions were joint sessions also with the ~ficrobiological Sction, The concensus seemed to be that this could be looked upon as one of our outstanding annual meetings, A11 sessions were well attended, At the business meeting on Monday September 8th, the Society approved a number of recomflendations of the Council as presented in the Council Report. -
Fungal Allergy and Pathogenicity 20130415 112934.Pdf
Fungal Allergy and Pathogenicity Chemical Immunology Vol. 81 Series Editors Luciano Adorini, Milan Ken-ichi Arai, Tokyo Claudia Berek, Berlin Anne-Marie Schmitt-Verhulst, Marseille Basel · Freiburg · Paris · London · New York · New Delhi · Bangkok · Singapore · Tokyo · Sydney Fungal Allergy and Pathogenicity Volume Editors Michael Breitenbach, Salzburg Reto Crameri, Davos Samuel B. Lehrer, New Orleans, La. 48 figures, 11 in color and 22 tables, 2002 Basel · Freiburg · Paris · London · New York · New Delhi · Bangkok · Singapore · Tokyo · Sydney Chemical Immunology Formerly published as ‘Progress in Allergy’ (Founded 1939) Edited by Paul Kallos 1939–1988, Byron H. Waksman 1962–2002 Michael Breitenbach Professor, Department of Genetics and General Biology, University of Salzburg, Salzburg Reto Crameri Professor, Swiss Institute of Allergy and Asthma Research (SIAF), Davos Samuel B. Lehrer Professor, Clinical Immunology and Allergy, Tulane University School of Medicine, New Orleans, LA Bibliographic Indices. This publication is listed in bibliographic services, including Current Contents® and Index Medicus. Drug Dosage. The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any change in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug. All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means electronic or mechanical, including photocopying, recording, microcopy- ing, or by any information storage and retrieval system, without permission in writing from the publisher. -
(<I>Arachis Hypogaea</I> L.) and Groundnut Cake in Eastern
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln U.S. Department of Agriculture: Agricultural Publications from USDA-ARS / UNL Faculty Research Service, Lincoln, Nebraska 2016 Aspergillus and aflatoxin in groundnut (Arachis hypogaea L.) and groundnut cake in Eastern Ethiopia Abdi Mohammed Haramaya University, [email protected] Alemayehu Chala Hawassa University Mashilla Dejene Haramaya University Chemeda Fininsa Haramaya University David A. Hoisington University of Georgia, [email protected] See next page for additional authors Follow this and additional works at: https://digitalcommons.unl.edu/usdaarsfacpub Part of the Agriculture Commons, and the Agronomy and Crop Sciences Commons Mohammed, Abdi; Chala, Alemayehu; Dejene, Mashilla; Fininsa, Chemeda; Hoisington, David A.; Sobolev, Victor S.; and Arias, R. S., "Aspergillus and aflatoxin in groundnut (Arachis hypogaea L.) and groundnut cake in Eastern Ethiopia" (2016). Publications from USDA-ARS / UNL Faculty. 1809. https://digitalcommons.unl.edu/usdaarsfacpub/1809 This Article is brought to you for free and open access by the U.S. Department of Agriculture: Agricultural Research Service, Lincoln, Nebraska at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Publications from USDA-ARS / UNL Faculty by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. Authors Abdi Mohammed, Alemayehu Chala, Mashilla Dejene, Chemeda Fininsa, David A. Hoisington, Victor S. Sobolev, and R. S. Arias This article is available at DigitalCommons@University of Nebraska - Lincoln: https://digitalcommons.unl.edu/ usdaarsfacpub/1809 FOOD ADDITIVES & CONTAMINANTS: PART B, 2016 VOL. 9, NO. 4, 290–298 http://dx.doi.org/10.1080/19393210.2016.1216468 Aspergillus and aflatoxin in groundnut (Arachis hypogaea L.) and groundnut cake in Eastern Ethiopia Abdi Mohammeda, Alemayehu Chalab, Mashilla Dejenea, Chemeda Fininsaa, David A. -
Identification and Nomenclature of the Genus Penicillium
available online at www.studiesinmycology.org STUDIES IN MYCOLOGY 78: 343–371. Identification and nomenclature of the genus Penicillium C.M. Visagie1, J. Houbraken1*, J.C. Frisvad2*, S.-B. Hong3, C.H.W. Klaassen4, G. Perrone5, K.A. Seifert6, J. Varga7, T. Yaguchi8, and R.A. Samson1 1CBS-KNAW Fungal Biodiversity Centre, Uppsalalaan 8, NL-3584 CT Utrecht, The Netherlands; 2Department of Systems Biology, Building 221, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark; 3Korean Agricultural Culture Collection, National Academy of Agricultural Science, RDA, Suwon, Korea; 4Medical Microbiology & Infectious Diseases, C70 Canisius Wilhelmina Hospital, 532 SZ Nijmegen, The Netherlands; 5Institute of Sciences of Food Production, National Research Council, Via Amendola 122/O, 70126 Bari, Italy; 6Biodiversity (Mycology), Agriculture and Agri-Food Canada, Ottawa, ON K1A0C6, Canada; 7Department of Microbiology, Faculty of Science and Informatics, University of Szeged, H-6726 Szeged, Közep fasor 52, Hungary; 8Medical Mycology Research Center, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8673, Japan *Correspondence: J. Houbraken, [email protected]; J.C. Frisvad, [email protected] Abstract: Penicillium is a diverse genus occurring worldwide and its species play important roles as decomposers of organic materials and cause destructive rots in the food industry where they produce a wide range of mycotoxins. Other species are considered enzyme factories or are common indoor air allergens. Although DNA sequences are essential for robust identification of Penicillium species, there is currently no comprehensive, verified reference database for the genus. To coincide with the move to one fungus one name in the International Code of Nomenclature for algae, fungi and plants, the generic concept of Penicillium was re-defined to accommodate species from other genera, such as Chromocleista, Eladia, Eupenicillium, Torulomyces and Thysanophora, which together comprise a large monophyletic clade.