A Report on Mushrooms Poisonings in 2018 at the Apulian Regional Poison Center
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Physiological and Cultural Properties of the Luminous Fungus Omphalotus Af
Journal of Siberian Federal University. Biology 2 (2009 2) 157-171 ~ ~ ~ УДК 579 Physiological and Cultural Properties of the Luminous Fungus Omphalotus af. Illudent Dao Thi Van* BIO-LUMI Company Ltd., 2/6 Do Nang Te, Binh Tri Dong ward Binh Tan dist, Ho Chi Minh, Vietnam 1 Received 1.06.2009, received in revised form 8.06.2009, accepted 15.06.2009 The luminous fungus that we have described as a presumably new species, Omphalotus af. illudent, grows in rain forests in the south of Vietnam on the dead tree wood, mostly on the rubber tree (Hevea). It emits exceptionally bright light in all phases of its life cycle, from germinate spores and mycelium to fruiting bodies. This study describes the life cycle of Omphalotus af. illudent (Neonatapanus) and determination of the optimal parameters of the temperature, humidity, pH, concentration of mineral elements, and composition of the nutrient media. Measurements have been performed to determine the destructive enzymatic activity of the mycelium towards some of the wood components. Optimal mycelial growth and luminescence have been found to occur under different conditions. The study of the parameters of Omphalotus af.illudent provided a basis for successful large-scale cultivation of this fungus and, hence, preparation of sufficient quantities of material for studies of the biochemical and genetic mechanisms underlying fungal bioluminescence and examination of the biochemical components of the fungus that are potentially valuable for pharmacology (illudin etc.). The brightness and steadiness of Omphalotus af. illudent luminescence make this fungus a good candidate for continuous bioluminescent analytical systems. Keywords: fungi bioluminescence, Omphalotus af. -
A Forgotten Kingdom Ecologically Industrious and Alluringly Diverse, Australia’S Puffballs, Earthstars, Jellies, Agarics and Their Mycelial Kin Merit Your Attention
THE OTHER 99% – NEGLECTED NATURE The delicate umbrellas of this Mycena species last only fleetingly, while its fungal mycelium persists, mostly obscured within the log it is rotting. Photo: Alison Pouliot A Forgotten Kingdom Ecologically industrious and alluringly diverse, Australia’s puffballs, earthstars, jellies, agarics and their mycelial kin merit your attention. Ecologist Alison Pouliot ponders our bonds with the mighty fungus kingdom. s the sun rises, I venture off-track Fungi have been dubbed the ‘forgotten into a dripping forest in the Otway kingdom’ – their ubiquity and diversity ARanges. Mountain ash tower contrast with the sparseness of knowledge overhead, their lower trunks carpeted about them, they are neglected in in mosses, lichens and liverworts. The conservation despite their ecological leeches are also up early and greet me significance, and their aesthetic and with enthusiasm. natural history fascination are largely A white scallop-shaped form at the unsung in popular culture. The term base of a manna gum catches my eye. ‘flora and fauna’ is usually unthinkingly Omphalotus nidiformis, the ghost fungus. A assumed to cover the spectrum of visible valuable marker. If it’s dark when I return, life. I am part of a growing movement of the eerie pale green glow of this luminous fungal enthusiasts dedicated to lifting fungal cairn will be a welcome beacon. the profile of the ‘third f’ in science, Descending deeper into the forest, a conservation and society. It is an damp funk hits my nostrils, signalling engrossing quest, not only because of the fungi. As my eyes adjust and the morning alluring organisms themselves but also for lightens, I make out diverse fungal forms the curiosities of their social and cultural in cryptic microcosms. -
Meeting Key Synthetic Challenges in Amanitin Synthesis with a New Cytotoxic Analog: 50-Hydroxy- Cite This: Chem
Chemical Science View Article Online EDGE ARTICLE View Journal | View Issue Meeting key synthetic challenges in amanitin synthesis with a new cytotoxic analog: 50-hydroxy- Cite this: Chem. Sci., 2020, 11, 11927 0 † All publication charges for this article 6 -deoxy-amanitin have been paid for by the Royal Society of Chemistry Alla Pryyma, Kaveh Matinkhoo, Antonio A. W. L. Wong and David M. Perrin * Appreciating the need to access synthetic analogs of amanitin, here we report the synthesis of 50-hydroxy- Received 29th July 2020 60-deoxy-amanitin, a novel, rationally-designed bioactive analog and constitutional isomer of a-amanitin, Accepted 2nd October 2020 that is anticipated to be used as a payload for antibody drug conjugates. In completing this synthesis, we DOI: 10.1039/d0sc04150e meet the challenge of diastereoselective sulfoxidation by presenting two high-yielding and rsc.li/chemical-science diastereoselective sulfoxidation approaches to afford the more toxic (R)-sulfoxide. drug-tolerant cell subpopulations.7 Examples include ADCs for Creative Commons Attribution-NonCommercial 3.0 Unported Licence. Introduction targeting human epidermal growth factor receptor 2 and pros- 8 9 a-Amanitin, the deadliest of the amatoxins produced by the tate specic membrane antigen. With but a few exceptions, death-cap mushroom Amanita phalloides, is a potent, orally nearly all bioconjugates to a cytotoxic amanitin have emerged 1 a available inhibitor of RNA polymerase II (pol II) (Ki 10 nM), from naturally-sourced -amanitin. To date, conjugation that has been validated as a payload for targeted cancer handles used for a-amanitin-based bioconjugates include the d- 2a therapy.2 First described in 1907 3 and isolated in 1941,4 a- hydroxyl of (2S,3R,4R)-4,5-dihydroxyisoleucine (DHIle), the 10 0 amanitin is a compact bicyclic octapeptide that has been asparagine side chain, and the 6 -hydroxyl of the tryptathio- 11 indispensable for probing RNA pol II-catalysed transcription in nine staple. -
Revised Taxonomy and Phylogeny of an Avian-Dispersed Neotropical Rhizomorph-Forming Fungus
Mycological Progress https://doi.org/10.1007/s11557-018-1411-8 ORIGINAL ARTICLE Tying up loose threads: revised taxonomy and phylogeny of an avian-dispersed Neotropical rhizomorph-forming fungus Rachel A. Koch1 & D. Jean Lodge2,3 & Susanne Sourell4 & Karen Nakasone5 & Austin G. McCoy1,6 & M. Catherine Aime1 Received: 4 March 2018 /Revised: 21 May 2018 /Accepted: 24 May 2018 # This is a U.S. Government work and not under copyright protection in the US; foreign copyright protection may apply 2018 Abstract Rhizomorpha corynecarpos Kunze was originally described from wet forests in Suriname. This unusual fungus forms white, sterile rhizomorphs bearing abundant club-shaped branches. Its evolutionary origins are unknown because reproductive struc- tures have never been found. Recent collections and observations of R. corynecarpos were made from Belize, Brazil, Ecuador, Guyana, and Peru. Phylogenetic analyses of three nuclear rDNA regions (internal transcribed spacer, large ribosomal subunit, and small ribosomal subunit) were conducted to resolve the phylogenetic relationship of R. corynecarpos. Results show that this fungus is sister to Brunneocorticium bisporum—a widely distributed, tropical crust fungus. These two taxa along with Neocampanella blastanos form a clade within the primarily mushroom-forming Marasmiaceae. Based on phylogenetic evidence and micromorphological similarities, we propose the new combination, Brunneocorticium corynecarpon, to accommodate this species. Brunneocorticium corynecarpon is a pathogen, infecting the crowns of trees and shrubs in the Neotropics; the long, dangling rhizomorphs with lateral prongs probably colonize neighboring trees. Longer-distance dispersal can be accomplished by birds as it is used as construction material in nests of various avian species. Keywords Agaricales . Fungal systematics . -
Metabolites from Nematophagous Fungi and Nematicidal Natural Products from Fungi As Alternatives for Biological Control
Appl Microbiol Biotechnol (2016) 100:3813–3824 DOI 10.1007/s00253-015-7234-5 MINI-REVIEW Metabolites from nematophagous fungi and nematicidal natural products from fungi as alternatives for biological control. Part II: metabolites from nematophagous basidiomycetes and non-nematophagous fungi Thomas Degenkolb1 & Andreas Vilcinskas1,2 Received: 4 October 2015 /Revised: 29 November 2015 /Accepted: 2 December 2015 /Published online: 4 January 2016 # The Author(s) 2016. This article is published with open access at Springerlink.com Abstract In this second section of a two-part mini-re- Introduction view article, we introduce 101 further nematicidal and non-nematicidal secondary metabolites biosynthesized Metabolites from nematophagous basidiomycetes by nematophagous basidiomycetes or non- nematophagous ascomycetes and basidiomycetes. Sev- General remarks eral of these compounds have promising nematicidal activity and deserve further and more detailed analy- The chemical ecology of nematophagous fungi is still far from sis. Thermolides A and B, omphalotins, ophiobolins, understood. Little has been done to screen for metabolites in bursaphelocides A and B, illinitone A, pseudohalonectrins A nematophagous fungi, or nematicidal metabolites in other fun- and B, dichomitin B, and caryopsomycins A–Careex- gi, since the pioneering studies by Stadler and colleagues pub- cellent candidates or lead compounds for the develop- lished in the 1990s (Stadler et al. 1993a, b, 1994a, b, c, d). In ment of biocontrol strategies for phytopathogenic the first part of this review, we discussed 83 primary and nematodes. Paraherquamides, clonostachydiol, and secondary metabolites from nematophagous ascomycetes nafuredins offer promising leads for the development (Degenkolb and Vilcinskas, in press). In this second install- of formulations against the intestinal nematodes of ment, we consider nematicidal metabolites from ruminants. -
Bioluminescence in Mushroom and Its Application Potentials
Nigerian Journal of Science and Environment, Vol. 14 (1) (2016) BIOLUMINESCENCE IN MUSHROOM AND ITS APPLICATION POTENTIALS Ilondu, E. M.* and Okiti, A. A. Department of Botany, Faculty of Science, Delta State University, Abraka, Nigeria. *Corresponding author. E-mail: [email protected]. Tel: 2348036758249. ABSTRACT Bioluminescence is a biological process through which light is produced and emitted by a living organism resulting from a chemical reaction within the body of the organism. The mechanism behind this phenomenon is an oxygen-dependent reaction involving substrates generally termed luciferin, which is catalyzed by one or more of an assortment of unrelated enzyme called luciferases. The history of bioluminescence in fungi can be traced far back to 382 B.C. when it was first noted by Aristotle in his early writings. It is the nature of bioluminescent mushrooms to emit a greenish light at certain stages in their life cycle and this light has a maximum wavelength range of 520-530 nm. Luminescence in mushroom has been hypothesized to attract invertebrates that aids in spore dispersal and testing for pollutants (ions of mercury) in water supply. The metabolites from luminescent mushrooms are effectively bioactive in anti-moulds, anti-bacteria, anti-virus, especially in inhibiting the growth of cancer cell and very useful in areas of biology, biotechnology and medicine as luminescent markers for developing new luminescent microanalysis methods. Luminescent mushroom is a novel area of research in the world which is beneficial to mankind especially with regards to environmental pollution monitoring and biomedical applications. Bioluminescence in fungi is a beautiful phenomenon to observe which should be of interest to Scientists of all endeavors. -
A New Poroid Species of Resupinatus from Puerto Rico, with a Reassessment of the Cyphelloid Genus Stigmatolemma
Mycologia, 97(5), 2005, pp. 000–000. # 2005 by The Mycological Society of America, Lawrence, KS 66044-8897 A new poroid species of Resupinatus from Puerto Rico, with a reassessment of the cyphelloid genus Stigmatolemma R. Greg Thorn1 their place in the cyphellaceous genus Stigmatolemma…’’ Department of Biology, University of Western Ontario, (Donk 1966) London, Ontario, N6A 5B7 Canada Jean-Marc Moncalvo INTRODUCTION Centre for Biodiversity and Conservation Biology, Royal Ontario Museum and Department of Botany, University Resupinatus S.F. Gray is a small genus of euagarics of Toronto, Toronto, Ontario, M5S 2C6 Canada (Hibbett and Thorn 2001) with 49 specific and Scott A. Redhead varietal epithets as of Apr 2005, excluding autonyms Systematic Mycology and Botany Section, Eastern Cereal and invalid names (www.indexfungorum.org). Fruit- and Oilseed Research, Agriculture and Agri-Food ing bodies of Resupinatus are small—a few mm to Canada, Ottawa, Ontario, K1A 0C6 Canada 2 cm in breadth—and generally pendent or resupi- D. Jean Lodge nate on the undersides of rotting logs and other Center for Forest Mycology Research, USDA Forest woody materials or herbaceous debris. Historically, Service-FPL, P.O. Box 1377, Luquillo, Puerto Rico, members of Resupinatus were treated within the USA 00773-1377 broad concept of Pleurotus (Fr.) P. Kumm. (e.g. Pila´t 1935, Coker, 1944). In modern times, the genus has Marı´a P. Martı´n been characterized by a gelatinous zone in the pileus, Real Jardı´n Bota´nico, CSIC, Plaza de Murillo 2, 28014 Madrid, Spain hyaline inamyloid spores and the absence of metuloid cystidia. The genus Hohenbuehelia Schulzer shares the gelatinized layer and inamyloid spores, but has Abstract: A fungus with gelatinous poroid fruiting metuloid cystidia (Singer 1986, Thorn and Barron bodies was found in Puerto Rico and determined by 1986). -
Toxic Fungi of Western North America
Toxic Fungi of Western North America by Thomas J. Duffy, MD Published by MykoWeb (www.mykoweb.com) March, 2008 (Web) August, 2008 (PDF) 2 Toxic Fungi of Western North America Copyright © 2008 by Thomas J. Duffy & Michael G. Wood Toxic Fungi of Western North America 3 Contents Introductory Material ........................................................................................... 7 Dedication ............................................................................................................... 7 Preface .................................................................................................................... 7 Acknowledgements ................................................................................................. 7 An Introduction to Mushrooms & Mushroom Poisoning .............................. 9 Introduction and collection of specimens .............................................................. 9 General overview of mushroom poisonings ......................................................... 10 Ecology and general anatomy of fungi ................................................................ 11 Description and habitat of Amanita phalloides and Amanita ocreata .............. 14 History of Amanita ocreata and Amanita phalloides in the West ..................... 18 The classical history of Amanita phalloides and related species ....................... 20 Mushroom poisoning case registry ...................................................................... 21 “Look-Alike” mushrooms ..................................................................................... -
A Review of the Occurrence of Alpha-Emitting Radionuclides in Wild Mushrooms
International Journal of Environmental Research and Public Health Review A Review of the Occurrence of Alpha-Emitting Radionuclides in Wild Mushrooms 1, 2,3, Dagmara Strumi ´nska-Parulska * and Jerzy Falandysz y 1 Toxicology and Radiation Protection Laboratory, Faculty of Chemistry, University of Gda´nsk, 80-308 Gda´nsk,Poland 2 Environmental Chemistry & Ecotoxicology Laboratory, Faculty of Chemistry, University of Gda´nsk, 80-308 Gda´nsk,Poland; [email protected] 3 Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, Zaragocilla Campus, University of Cartagena, Cartagena 130015, Colombia * Correspondence: [email protected]; Tel.: +48-58-5235254 Jerzy Falandysz is visiting professor at affiliation 3. y Received: 22 September 2020; Accepted: 3 November 2020; Published: 6 November 2020 Abstract: Alpha-emitting radioisotopes are the most toxic among all radionuclides. In particular, medium to long-lived isotopes of the heavier metals are of the greatest concern to human health and radiological safety. This review focuses on the most common alpha-emitting radionuclides of natural and anthropogenic origin in wild mushrooms from around the world. Mushrooms bio-accumulate a range of mineral ionic constituents and radioactive elements to different extents, and are therefore considered as suitable bio-indicators of environmental pollution. The available literature indicates that the natural radionuclide 210Po is accumulated at the highest levels (up to 22 kBq/kg dry weight (dw) in wild mushrooms from Finland), while among synthetic nuclides, the highest levels of up to 53.8 Bq/kg dw of 239+240Pu were reported in Ukrainian mushrooms. The capacity to retain the activity of individual nuclides varies between mushrooms, which is of particular interest for edible species that are consumed either locally or, in some cases, also traded on an international scale. -
ISSN 1308-5301 Print 7/3 (2014) 117-118
www.biodicon.com Biological Diversity and Conservation ISSN 1308-8084 Online; ISSN 1308-5301 Print 7/3 (2014) 117-118 Research note/Araştırma notu The first record of Omphalotus olearius poisoning in Turkey Hayrünisa BAŞ SERMENLİ *1, Mustafa IŞILOĞLU 1 1 Department of Biology, Faculty of Science, Muğla Sıtkı Koçman University, Kötekli, Muğla, Turkey. Abstract In this study, three cases of poisoning by wild mushrooms collected and consumed from Bodrum district (Muğla) are reported. The specimens have been identified as Omphalotus olearius (DC.) Singer by using macroscopic and microscopic characters. A description of the taxon and poisoning cases are presented. Key words: mushroom poisoning, Omphalotus olearius, Turkey ---------- ---------- Türkiye’de ilk Omphalotus olearius (Deli Mantar) zehirlenmesi Özet Bu çalışmada doğadan toplayarak tükettikleri mantar nedeniyle zehirlenen üç vaka rapor edilmiştir. Tüketilen mantar türü makroskobik ve mikroskobik incelemelerin ardından Omphalotus olearius (DC.) Singer olarak teşhis edilmiştir. Türün deskripsiyonu ve zehirlenme vakaları verilmektedir. Anahtar kelimeler: mantar zehirlenmesi, Omphalotus olearius, Türkiye 1. Introduction A large variety of macrofungi grow naturally during spring and autumn in Turkey. Turkish people use unreliable identification methods learned from their grandparents. Poisonings and deaths usually have been recorded by confusion of edible and poisonous specimens (Kaygusuz et al., 2013). This is the first record of poisoning by this fungus in Turkey. 2. Case study Two male and one female friends between the ages 26 and 39 were admitted to the Bodrum state hospital with complaints of nausea, vomiting, abdominal cramping and weakness approximately 1.5 hours after eating wild mushrooms collected from olive orchard in November 2011. The mushrooms were thought to be Lactarius deliciosus. -
MUSHROOMS of the OTTAWA NATIONAL FOREST Compiled By
MUSHROOMS OF THE OTTAWA NATIONAL FOREST Compiled by Dana L. Richter, School of Forest Resources and Environmental Science, Michigan Technological University, Houghton, MI for Ottawa National Forest, Ironwood, MI March, 2011 Introduction There are many thousands of fungi in the Ottawa National Forest filling every possible niche imaginable. A remarkable feature of the fungi is that they are ubiquitous! The mushroom is the large spore-producing structure made by certain fungi. Only a relatively small number of all the fungi in the Ottawa forest ecosystem make mushrooms. Some are distinctive and easily identifiable, while others are cryptic and require microscopic and chemical analyses to accurately name. This is a list of some of the most common and obvious mushrooms that can be found in the Ottawa National Forest, including a few that are uncommon or relatively rare. The mushrooms considered here are within the phyla Ascomycetes – the morel and cup fungi, and Basidiomycetes – the toadstool and shelf-like fungi. There are perhaps 2000 to 3000 mushrooms in the Ottawa, and this is simply a guess, since many species have yet to be discovered or named. This number is based on lists of fungi compiled in areas such as the Huron Mountains of northern Michigan (Richter 2008) and in the state of Wisconsin (Parker 2006). The list contains 227 species from several authoritative sources and from the author’s experience teaching, studying and collecting mushrooms in the northern Great Lakes States for the past thirty years. Although comments on edibility of certain species are given, the author neither endorses nor encourages the eating of wild mushrooms except with extreme caution and with the awareness that some mushrooms may cause life-threatening illness or even death. -
Biosynthesis of Cyclic Peptide Natural Products in Mushrooms
BIOSYNTHESIS OF CYCLIC PEPTIDE NATURAL PRODUCTS IN MUSHROOMS By Robert Michael Sgambelluri A DISSERTATION Submitted to Michigan State University in partial fulfillment of the requirements for the degree of Biochemistry & Molecular Biology – Doctor of Philosophy 2017 ABSTRACT BIOSYNTHESIS OF CYCLIC PEPTIDE NATURAL PRODUCTS IN MUSHROOMS By Robert Michael Sgambelluri Cyclic peptide compounds possess properties that make them attractive candidates in the development of new drugs and therapeutics. Mushrooms in the genera Amanita and Galerina produce cyclic peptides using a biosynthetic pathway that is combinatorial by nature, and involves an unidentified, core set of tailoring enzymes that synthesize cyclic peptides from precursor peptides encoded in the genome. The products of this pathway are collectively referred to as cycloamanides, and include amatoxins, phallotoxins, peptides with immunosuppressant activities, and many other uncharacterized compounds. This work aims to describe cycloamanide biosynthesis and its capacity for cyclic peptide production, and to harness the pathway as a means to design and synthesize bioactive peptides and novel compounds. The genomes of Amanita bisporigera and A. phalloides were sequenced and genes encoding cycloamanides were identified. Based on the number of genes identified and their sequences, the two species are shown to have a combined capacity to synthesize at least 51 unique cycloamanides. Using these genomic data to predict the structures of uncharacterized cycloamanides, two new cyclic peptides, CylE and CylF, were identified in A. phalloides by mass spectrometry. Two species of Lepiota mushrooms, previously not known to produce cycloamanides, were also analyzed and shown to contain amatoxins, the toxic cycloamanides responsible for fatal mushroom poisonings. The mushroom Galerina marginata, which also produces amatoxins, was used as a model orgasnism for studying cycloamanide biosynthesis due to its culturability.