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IMA Fungus

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https://www.readbyqxmd.com/read/28824848/report-of-the-nomenclature-committee-for-fungi-21-lists-from-working-groups
#1
Tom W May
Six lists of names from working groups set up under Art. 14.13 are approved, consisting of three names of families, 43 names of genera and five names of species, to be treated as conserved against the listed synonymous or homonymous names. Lists were compiled by working groups approved by the International Commission on the Taxonomy of Fungi and the Nomenclature Committee for Fungi: on Cordyceps, Diaporthales, Dothideomycetes, Hypocreales, Leotiomycetes, and Trichoderma and Hypocrea. Issues around interpretation of Art...
June 2017: IMA Fungus
https://www.readbyqxmd.com/read/28824847/report-of-the-nomenclature-committee-for-fungi-20
#2
Tom W May
Ratification of appointment of repositories by the International Mycological Congress is reported. The following two family names are recommended for conservation: Chrysotrichaceae against Pulverariaceae; and the teleomorph-typified Erysiphaceae against the anamorph-typified Oidiaceae. The following family name is not recommended for conservation: Dothioraceae against Saccotheciaceae. The following 10 generic names are recommended for conservation: the teleomorph-typified name Blumeria against the conserved anamorph-typified name Oidium; Catenaria Sorokīn (Fungi) against Catenaria Roussel (Algae); Chrysothrix, nom...
June 2017: IMA Fungus
https://www.readbyqxmd.com/read/28824846/diaporthe-is-paraphyletic
#3
Yahui Gao, Fang Liu, Weijun Duan, Pedro W Crous, Lei Cai
Previous studies have shown that our understanding of species diversity within Diaporthe (syn. Phomopsis) is limited. In this study, 49 strains obtained from different countries were subjected to DNA sequence analysis. Based on these results, eight new species names are introduced for lineages represented by multiple strains and distinct morphology. Twelve Phomopsis species previously described from China were subjected to DNA sequence analysis, and confirmed to belong to Diaporthe. The genus Diaporthe is shown to be paraphyletic based on multi-locus (LSU, ITS and TEF1) phylogenetic analysis...
June 2017: IMA Fungus
https://www.readbyqxmd.com/read/28824845/the-genera-of-fungi-g-4-camarosporium-and-dothiora
#4
Pedro W Crous, Johannes Z Groenewald
The current paper represents the fourth contribution in the Genera of Fungi series, linking type species of fungal genera to their morphology and DNA sequence data. The present paper focuses on two genera of microfungi, Camarosporium and Dothiora, which are respectively epi- and neotypified. The genus Camarosporium is typified by C. quaternatum, which has a karstenula-like sexual morph, and phoma-like synasexual morph. Furthermore, Camarosporomyces, Foliophoma and Hazslinszkyomyces are introduced as new camarosporium-like genera, while Querciphoma is introduced as a new phoma-like genus...
June 2017: IMA Fungus
https://www.readbyqxmd.com/read/28824844/asexual-and-sexual-morphs-of-moesziomyces-revisited
#5
Julia Kruse, Gunther Doehlemann, Eric Kemen, Marco Thines
Yeasts of the now unused asexually typified genus Pseudozyma belong to the smut fungi (Ustilaginales) and are mostly believed to be apathogenic asexual yeasts derived from smut fungi that have lost pathogenicity on plants. However, phylogenetic studies have shown that most Pseudozyma species are phylogenetically close to smut fungi parasitic to plants, suggesting that some of the species might represent adventitious isolations of the yeast morph of otherwise plant pathogenic smut fungi. However, there are some species, such as Moesziomyces aphidis (syn...
June 2017: IMA Fungus
https://www.readbyqxmd.com/read/28824843/anther-smuts-of-silene-acaulis-and-s-uniflora-in-the-outer-hebrides-including-an-assessment-of-its-genotypes-of-microbotryum-silenes-acaulis
#6
Paul A Smith, Matthias Lutz, Rebekka Ziegler, Marcin Piątek
Anther smuts on Silene acaulis and S. uniflora from the Outer Hebrides, Scotland, UK), are analysed using morphological and molecular techniques, and found to represent Microbotryum silenes-acaulis and M. silenes-inflatae, respectively. This is the first identification of caryophyllaceous anther smuts in the Outer Hebrides according to modern species concepts and the first report of Microbotryum silenes-acaulis confirmed by molecular analysis from the British Isles. Additionally, the genetic structure of Microbotryum silenes-acaulis, based on all currently available ITS sequences, is analysed and discussed...
June 2017: IMA Fungus
https://www.readbyqxmd.com/read/28824842/asexual-sexual-morph-connection-in-the-type-species-of-berkleasmium
#7
Joey Tanney, Andrew N Miller
Berkleasmium is a polyphyletic genus comprising 37 dematiaceous hyphomycetous species. In this study, independent collections of the type species, B. concinnum, were made from Eastern North America. Nuclear internal transcribed spacer rDNA (ITS) and partial nuc 28S large subunit rDNA (LSU) sequences obtained from collections and subsequent cultures showed that Berkleasmium concinnum is the asexual morph of Neoacanthostigma septoconstrictum (Tubeufiaceae, Tubeufiales). Phylogenies inferred from Bayesian inference and maximum likelihood analyses of ITS-LSU sequence data confirmed this asexual-sexual morph connection and a re-examination of fungarium reference specimens also revealed the co-occurrence of N...
June 2017: IMA Fungus
https://www.readbyqxmd.com/read/28824841/new-endophytic-toxicocladosporium-species-from-cacti-in-brazil-and-description-of-neocladosporium-gen-nov
#8
Jadson D P Bezerra, Marcelo Sandoval-Denis, Laura M Paiva, Gladstone A Silva, Johannes Z Groenewald, Cristina M Souza-Motta, Pedro W Crous
Brazil harbours a unique ecosystem, the Caatinga, which belongs to the tropical dry forest biome. This region has an important diversity of organisms, and recently several new fungal species have been described from different hosts and substrates within it. During a survey of fungal endophyte diversity from cacti in this forest, we isolated cladosporium-like fungi that were subjected to morphological and multigene phylogenetic analyses including actA, ITS, LSU, rpb2 and tub2 gene sequences. Based on these analyses we identified two new species belonging to the genus Toxicocladosporium, described here as T...
June 2017: IMA Fungus
https://www.readbyqxmd.com/read/28824840/pleiocarpon-gen-nov-and-a-new-species-of-ilyonectria-causing-basal-rot-of-strelitzia-reginae-in-italy
#9
Dalia Aiello, Giancarlo Polizzi, Pedro W Crous, Lorenzo Lombard
During 2015, a new basal rot disease was observed on potted plants of Strelitzia reginae in an ornamental nursery located in eastern Sicily. Isolations from symptomatic parts of these diseased plants consistently yielded cylindrocarpon-like isolates. Multigene analyses of the partial gene regions of 28S large subunit nrDNA, β-tubulin, histone H3, translation elongation factor 1-alpha, internal transcribed spacer region and intervening 5.8S nrRNA gene, and RNA polymerase II second largest subunit genes, supported by morphological characters supported the recognition of a new genus, Pleiocarpon based on P...
June 2017: IMA Fungus
https://www.readbyqxmd.com/read/28824839/elaphomyces-species-elaphomycetaceae-eurotiales-from-bartlett-experimental-forest-new-hampshire-usa
#10
Michael A Castellano, Ryan B Stephens
We describe five new species of Elaphomyces from Bartlett Experimental Forest, New Hampshire, USA (E. americanus, E. bartlettii, E. macrosporus, E. oreoides, and E. remickii) and revise the description of a sixth previously published species (E. verruculosus). Of the five new species, E. bartlettii and E. remickii are only known from New Hampshire whereas E. americanus, E. macrosporus, and E. oreoides are widely distributed in eastern North America. Elaphomyces verruculosus is the most widespread and abundant Elaphomyces species in eastern North America with a distribution extending from eastern Canada south to northeastern Mexico...
June 2017: IMA Fungus
https://www.readbyqxmd.com/read/28824838/new-species-of-tulasnella-associated-with-terrestrial-orchids-in-australia
#11
Celeste C Linde, Tom W May, Ryan D Phillips, Monica Ruibal, Leon M Smith, Rod Peakall
Recent studies using sequence data from eight sequence loci and coalescent-based species delimitation methods have revealed several species-level lineages of Tulasnella associated with the orchid genera Arthrochilus, Caleana, Chiloglottis, and Drakaea in Australia. Here we formally describe three of those species, Tulasnella prima, T. secunda, and T. warcupii spp. nov., as well as an additional Tulasnella species associated with Chiloglottis growing in Sphagnum, T. sphagneti sp. nov. Species were identified by phylogenetic analyses of the ITS with up to 1...
June 2017: IMA Fungus
https://www.readbyqxmd.com/read/28824837/functional-diversity-in-dichomitus-squalens-monokaryons
#12
Sara Casado López, Bart Theelen, Serena Manserra, Tedros Yonatan Issak, Johanna Rytioja, Miia R Mäkelä, Ronald P de Vries
Dichomitussqualens is a white-rot fungus that colonizes and grows mainly on softwood and is commonly found in the northern parts of Europe, North America, and Asia. We analyzed the genetic and physiological diversity of eight D. squalens monokaryons derived from a single dikaryon. In addition, an unrelated dikaryon and a newly established dikaryon from two of the studied monokaryons were included. Both growth and lignocellulose acting enzyme profiles were highly variable between the studied monokaryotic and dikaryotic strains, demonstrating a high level of diversity within the species...
June 2017: IMA Fungus
https://www.readbyqxmd.com/read/28824836/a-plant-pathology-perspective-of-fungal-genome-sequencing
#13
Janneke Aylward, Emma T Steenkamp, Léanne L Dreyer, Francois Roets, Brenda D Wingfield, Michael J Wingfield
The majority of plant pathogens are fungi and many of these adversely affect food security. This mini-review aims to provide an analysis of the plant pathogenic fungi for which genome sequences are publically available, to assess their general genome characteristics, and to consider how genomics has impacted plant pathology. A list of sequenced fungal species was assembled, the taxonomy of all species verified, and the potential reason for sequencing each of the species considered. The genomes of 1090 fungal species are currently (October 2016) in the public domain and this number is rapidly rising...
June 2017: IMA Fungus
https://www.readbyqxmd.com/read/27990338/ima-genome-f-7-draft-genome-sequences-for-ceratocystis-fagacearum-c-harringtonii-grosmannia-penicillata-and-huntiella-bhutanensis
#14
Brenda D Wingfield, Tuan A Duong, Almuth Hammerbacher, Magriet A van der Nest, Andi Wilson, Runlei Chang, Z Wilhelm de Beer, Emma T Steenkamp, P Markus Wilken, Kershney Naidoo, Michael J Wingfield
Draft genomes for the fungi Ceratocystis fagacearum, C. harringtonii, Grosmannia penicillata, and Huntiella bhutanensis are presented. Ceratocystis fagacearum is a major causal agent of vascular wilt of oaks and other trees in the family Fagaceae. Ceratocystis harringtonii, previously known as C. populicola, causes disease in Populus species in the USA and Canada. Grosmannia penicillata is the causal agent of bluestain of sapwood on various conifers, including Picea spp. and Pinus spp. in Europe. Huntiella bhutanensis is a fungus in Ceratocystidaceae and known only in association with the bark beetle Ips schmutzenhorferi that infests Picea spinulosa in Bhutan...
December 2016: IMA Fungus
https://www.readbyqxmd.com/read/27990337/mycosarcoma-ustilaginaceae-a-resurrected-generic-name-for-corn-smut-ustilago-maydis-and-its-close-relatives-with-hypertrophied-tubular-sori
#15
Alistair R McTaggart, Roger G Shivas, Teun Boekhout, Franz Oberwinkler, Kálmán Vánky, Shaun R Pennycook, Dominik Begerow
Ustilago is a polyphyletic genus of smut fungi found mainly on Poaceae. The development of a taxonomy that reflects phylogeny requires subdivision of Ustilago into smaller monophyletic genera. Several separate systematic analyses have determined that Macalpinomyces mackinlayi, M. tubiformis, Tolyposporella pachycarpa, Ustilago bouriquetii and U. maydis, occupy a unique phylogenetic position within the Ustilaginaceae. A previously introduced monotypic generic name typified by U. maydis, Mycosarcoma, is available to accommodate these species, which resolves one component of polyphyly for Ustilagos...
December 2016: IMA Fungus
https://www.readbyqxmd.com/read/27990336/overlooked-competing-asexual-and-sexually-typified-generic-names-of-ascomycota-with-recommendations-for-their-use-or-protection
#16
Amy Y Rossman, W Cavan Allen, Uwe Braun, Lisa A Castlebury, Priscila Chaverri, Pedro W Crous, David L Hawksworth, Kevin D Hyde, Peter Johnston, Lorenzo Lombard, Megan Romberg, Rob A Samson, Keith A Seifert, Jeffrey K Stone, Dhanushka Udayanga, James F White
With the change to one scientific name for fungal species, numerous papers have been published with recommendations for use or protection of competing generic names in major groups of ascomycetes. Although genera in each group of fungi were carefully considered, some competing generic names were overlooked. This paper makes recommendations for additional competing genera not considered in previous papers. Chairs of relevant Working Groups of the ICTF were consulted in the development of these recommendations...
December 2016: IMA Fungus
https://www.readbyqxmd.com/read/27990335/competing-sexual-asexual-generic-names-of-pezizomycetes-and-recommendations-for-use
#17
Roseanne Healy, Donald H Pfister, Amy Y Rossman, Ludmila Marvanová, Karen Hansen
Following the change that eliminated dual naming of sexual and asexual morphs of fungi, generic names of Pezizomycetes have been evaluated to determine which of the competing names should be recommended for use. Evaluation is based on congruence of type species to determine if the names are congeneric and which name is most commonly cited as well as priority. In the Pezizomycetes six pairs of generic names were determined to compete. In all cases the older name, representing the sexual morph, is recommended for use, specifically Caloscypha rather than Geniculodendron, Desmazierella rather than Verticicladium, Miladina rather than Actinosporella, Morchella rather than Costantinella, Sarcoscypha rather than Molliardiomyces, and Trichophaea rather than Dichobotrys...
December 2016: IMA Fungus
https://www.readbyqxmd.com/read/27990334/peering-into-the-mediterranean-black-box-lactifluus-rugatus-ectomycorrhizas-on-cistus
#18
Marco Leonardi, Ornella Comandini, Andrea C Rinaldi
We describe the morpho-anatomical features of the ectomycorrhizas (ECMs) formed by Lactifluus rugatus on Cistus, a genus of about 20 species of woody shrubs typical of the Mediterranean maquis. The description of L. rugatus mycorrhizas on Cistus is the first ECM description of a species belonging to Lactifluus subgen. Pseudogymnocarpi. The ECM identity was verified through molecular tools. Anatomically, the characteristic of L. rugatus mycorrhiza is the presence of abundant, long "bottle-shaped" cystidia on mantle surface...
December 2016: IMA Fungus
https://www.readbyqxmd.com/read/27990333/new-raffaelea-species-ophiostomatales-from-the-usa-and-taiwan-associated-with-ambrosia-beetles-and-plant-hosts
#19
D Rabern Simmons, Z Wilhelm de Beer, Yin-Tse Huang, Craig Bateman, Alina S Campbell, Tyler J Dreaden, You Li, Randy C Ploetz, Adam Black, Hou-Feng Li, Chi-Yu Chen, Michael J Wingfield, Jiri Hulcr
Raffaelea (Ophiostomatales) is a genus of more than 20 ophiostomatoid fungi commonly occurring in symbioses with wood-boring ambrosia beetles. We examined ambrosia beetles and plant hosts in the USA and Taiwan for the presence of these mycosymbionts and found 22 isolates representing known and undescribed lineages in Raffaelea. From 28S rDNA and β-tubulin sequences, we generated a molecular phylogeny of Ophiostomatales and observed morphological features of seven cultures representing undescribed lineages in Raffaelea s...
December 2016: IMA Fungus
https://www.readbyqxmd.com/read/27990332/new-cryptic-species-of-teratosphaeria-on-eucalyptus-in-australia
#20
Vera Andjic, Aaron Maxwell, Giles E StJ Hardy, Treena I Burgess
Teratosphaeria destructans and T. viscida are serious pathogens causing leaf, bud and shoot blight diseases of Eucalyptus plantations in the subtropics and tropics of South-East Asia (T. destructans) and North Queensland, Australia (T. viscida). During disease surveys in northern Western Australia and the Northern Territory of Australia, symptoms resembling those of T. destructans were observed on young and adult leaves of native and plantation Eucalyptus spp. and its hybrids. Phylogenetic studies revealed Teratosphaeria species associated with these symptoms are new taxonomic novelties described here as T...
December 2016: IMA Fungus
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