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IMA Fungus

Brenda D Wingfield, Jon M Ambler, Martin P A Coetzee, Z Wilhelm de Beer, Tuan A Duong, Fourie Joubert, Almuth Hammerbacher, Alistair R McTaggart, Kershney Naidoo, Hai D T Nguyen, Ekaterina Ponomareva, Quentin S Santana, Keith A Seifert, Emma T Steenkamp, Conrad Trollip, Magriet A van der Nest, Cobus M Visagie, P Markus Wilken, Michael J Wingfield, Neriman Yilmaz
The genomes of Armillaria fuscipes, Ceratocystiopsis minuta, Ceratocystis adiposa, Endoconidiophora laricicola, E. polonica, and Penicillium freii DAOMC 242723 are presented in this genome announcement. These six genomes are from plant pathogens and otherwise economically important fungal species. The genome sizes range from 21 Mb in the case of Ceratocystiopsis minuta to 58 Mb for the basidiomycete Armillaria fuscipes. These genomes include the first reports of genomes for the genus Endoconidiophora. The availability of these genome data will provide opportunities to resolve longstanding questions regarding the taxonomy of species in these genera...
June 2016: IMA Fungus
Uwe Braun, Pedro W Crous, Chiharu Nakashima
The present paper is a continuation of a series of comprehensive taxonomic treatments of cercosporoid fungi (formerly Cercospora s. lat.), belonging to Mycosphaerellaceae (Ascomycota). This fifth contribution of this series proceeds with treatments of cercosporoid fungi on dicots and comprises species occurring on hosts belonging to the families Anacardiaceae and Annonaceae, which are described and illustrated in alphabetical order under the particular cercosporoid genera, supplemented by keys to the species concerned...
June 2016: IMA Fungus
Ning Zhang, Jing Luo, Amy Y Rossman, Takayuki Aoki, Izumi Chuma, Pedro W Crous, Ralph Dean, Ronald P de Vries, Nicole Donofrio, Kevin D Hyde, Marc-Henri Lebrun, Nicholas J Talbot, Didier Tharreau, Yukio Tosa, Barbara Valent, Zonghua Wang, Jin-Rong Xu
The order Magnaporthales comprises about 200 species and includes the economically and scientifically important rice blast fungus and the take-all pathogen of cereals, as well as saprotrophs and endophytes. Recent advances in phylogenetic analyses of these fungi resulted in taxonomic revisions. In this paper we list the 28 currently accepted genera in Magnaporthales with their type species and available gene and genome resources. The polyphyletic Magnaporthe 1972 is proposed for suppression, and Pyricularia 1880 and Nakataea 1939 are recommended for protection as the generic names for the rice blast fungus and the rice stem rot fungus, respectively...
June 2016: IMA Fungus
Martina Réblová, Andrew N Miller, Amy Y Rossman, Keith A Seifert, Pedro W Crous, David L Hawksworth, Mohamed A Abdel-Wahab, Paul F Cannon, Dinushani A Daranagama, Z Wilhelm De Beer, Shi-Ke Huang, Kevin D Hyde, Ruvvishika Jayawardena, Walter Jaklitsch, E B Gareth Jones, Yu-Ming Ju, Caroline Judith, Sajeewa S N Maharachchikumbura, Ka-Lai Pang, Liliane E Petrini, Huzefa A Raja, Andrea I Romero, Carol Shearer, Indunil C Senanayake, Hermann Voglmayr, Bevan S Weir, Nalin N Wijayawarden
With the advance to one scientific name for each fungal species, the generic names in the class Sordariomycetes typified by sexual and asexual morphs are evaluated based on their type species to determine if they compete with each other for use or protection. Recommendations are made for which of the competing generic names should be used based on criteria such as priority, number of potential names changes, and frequency of use. Some recommendations for well-known genera include Arthrinium over Apiospora, Colletotrichum over Glomerella, Menispora over Zignoëlla, Microdochium over Monographella, Nigrospora over Khuskia, and Plectosphaerella over Plectosporium...
June 2016: IMA Fungus
Scott A Redhead, Alfredo Vizzini, Dennis C Drehmel, Marco Contu
The genus Amanita has been divided into two monophyletic taxa, Amanita, an ectomycorrhizal genus, and Aspidella, a saprotrophic genus. The controversies and histories about recognition of the two genera based on trophic status are discussed. The name Aspidella E.-J. Gilbert is shown to be illegitimate and a later homonym of Aspidella E. Billings, a well-known generic name for an enigmatic fossil sometimes classified as a fungus or alga. The name Saproamanita is coined to replace Aspidella E.-J. Gilbert for the saprotrophic Amanitas, and a selection of previously molecularly analyzed species and closely classified grassland species are transferred to it along with selected similar taxa...
June 2016: IMA Fungus
Cobus M Visagie, Keith A Seifert, Jos Houbraken, Robert A Samson, Karin Jacobs
A survey of the fynbos biome in South Africa resulted in the isolation of 61 Penicillium species from Protea repens infructescences, air, and soil samples. Fourteen of these belong to Penicillium sect. Exilicaulis and therefore we considered it an opportunity to re-evaluate the taxonomy of the section. Phylogenetic comparisons of the ITS, β-tubulin, calmodulin and RPB2 gene regions of the 76 section Exilicaulis species, revealed 52 distinct species, including nine new species from fynbos. Morphological comparisons confirmed the novelty for most of these, however, new species closely related to P...
June 2016: IMA Fungus
Michael A Castellano, Bryn T M Dentinger, Olivier Séné, Todd F Elliott, Camille Truong, Terry W Henkel
The sequestrate false truffles Elaphomyces favosus, E. iuppitercellus, and E. labyrinthinus spp. nov. are described as new to science from the Dja Biosphere Reserve, Cameroon. Elaphomyces adamizans sp. nov. is described as new from the Pakaraima Mountains of Guyana. The Cameroonian species are the first Elaphomyces taxa to be formally described from Africa, occurring in lowland Guineo-Congolian tropical rainforests dominated by the ectomycorrhizal (ECM) canopy tree Gilbertiodendron dewevrei (Fabaceae subfam...
June 2016: IMA Fungus
William A Dunstan, Kay Howard, Giles E StJ Hardy, Treena I Burgess
Although Phytophthora species cause serious diseases worldwide, until recently the main focus on disease in natural ecosystems in southern Australia has been on the distribution and impact of P. cinnamomi. However, new Phytophthora pathogens have emerged from natural ecosystems, and there is a need to better understand the diversity and distribution of these species in our natural forests, woodlands and heathlands. From a survey along a 70 km pipeline easement in Victoria, Phytophthora species were isolated from 249 rhizosphere samples and 25 bait bags deployed in 21 stream, river, or wetland locations...
June 2016: IMA Fungus
J Leland Crane, Andrew N Miller
A generic key is presented to delimit Torula from seven hyphomycete genera whose type species were at one time included in the genus or whose conidium ontogeny and conidium development appear similar or superficially similar to that of Torula herbarum, the type of the genus. In Bahusaganda, two new species are described (B. elliseverhartii and B. simmonsii spp. nov.) and three new combinations made (B. ambrosiae, B. elaeodes, and B. heteromorpha combs. nov.). In Bahusandhika, one new species (B. hughesii sp...
June 2016: IMA Fungus
André Luiz Firmino, Carlos Antonio Inácio, Olinto Liparini Pereira, José Carmine Dianese
Four new Asterolibertia species and a new variety of Cirsosia splendida, all found on native Cerrado plants, belonging to three host families are described, illustrated and named as: A. bahiensis sp. nov. on Erythroxylum sp. (Erythroxylaceae); A. barrinhensis sp. nov. on Diospyros burchellii (Ebenaceae); A. campograndensis sp. nov. on Hirtella glandulosa (Chrysobalanaceae); A. parinaricola sp. nov. on Parinari obtusifolia (Chrysobalanaceae); and Cirsosia splendida var. laevigata var. nov., showing both sexual and asexual morphs, on H...
June 2016: IMA Fungus
Amy Y Rossman, W Cavan Allen, Lisa A Castlebury
In advancing to one scientific name for each fungus species, a number of name changes are required especially for plant-associated fungi. These include species names that are not in the correct genus. For example, the generic name Elsinoë is used for fungi causing scab diseases but a number of these species were described in the asexually typified genus Sphaceloma and must be placed in Elsinoë. In other cases species names were determined to be unrelated to the type species of the genus in which they are currently placed and are placed in a more appropriate genus...
June 2016: IMA Fungus
Amy Y Rossman, Pedro W Crous, Kevin D Hyde, David L Hawksworth, André Aptroot, Jose L Bezerra, Jayarama D Bhat, Eric Boehm, Uwe Braun, Saranyaphat Boonmee, Erio Camporesi, Putarak Chomnunti, Dong-Qin Dai, Melvina J D'souza, Asha Dissanayake, E B Gareth Jones, Johannes Z Groenewald, Margarita Hernández-Restrepo, Sinang Hongsanan, Walter M Jaklitsch, Ruvishika Jayawardena, Li Wen Jing, Paul M Kirk, James D Lawrey, Ausana Mapook, Eric H C McKenzie, Jutamart Monkai, Alan J L Phillips, Rungtiwa Phookamsak, Huzefa A Raja, Keith A Seifert, Indunil Senanayake, Bernard Slippers, Satinee Suetrong, Joanne E Taylor, Kasun M Thambugala, Qing Tian, Saowaluck Tibpromma, Dhanushka N Wanasinghe, Nalin N Wijayawardene, Saowanee Wikee, Joyce H C Woudenberg, Hai-Xia Wu, Jiye Yan, Tao Yang, Ying Zhang
This paper provides recommendations of one name for use among pleomorphic genera in Dothideomycetes by the Working Group on Dothideomycetes established under the auspices of the International Commission on the Taxonomy of Fungi (ICTF). A number of these generic names are proposed for protection because they do not have priority and/or the generic name selected for use is asexually typified. These include: Acrogenospora over Farlowiella; Alternaria over Allewia, Lewia, and Crivellia; Botryosphaeria over Fusicoccum; Camarosporula over Anthracostroma; Capnodium over Polychaeton; Cladosporium over Davidiella; Corynespora over Corynesporasca; Curvularia over Pseudocochliobolus; Elsinoë over Sphaceloma; Excipulariopsis over Kentingia; Exosporiella over Anomalemma; Exserohilum over Setosphaeria; Gemmamyces over Megaloseptoria; Kellermania over Planistromella; Kirschsteiniothelia over Dendryphiopsis; Lecanosticta over Eruptio; Paranectriella over Araneomyces; Phaeosphaeria over Phaeoseptoria; Phyllosticta over Guignardia; Podonectria over Tetracrium; Polythrincium over Cymadothea; Prosthemium over Pleomassaria; Ramularia over Mycosphaerella; Sphaerellopsis over Eudarluca; Sphaeropsis over Phaeobotryosphaeria; Stemphylium over Pleospora; Teratosphaeria over Kirramyces and Colletogloeopsis; Tetraploa over Tetraplosphaeria; Venturia over Fusicladium and Pollaccia; and Zeloasperisporium over Neomicrothyrium...
December 2015: IMA Fungus
Brenda D Wingfield, Irene Barnes, Z Wilhelm de Beer, Lieschen De Vos, Tuan A Duong, Aquillah M Kanzi, Kershney Naidoo, Hai D T Nguyen, Quentin C Santana, Mohammad Sayari, Keith A Seifert, Emma T Steenkamp, Conrad Trollip, Nicolaas A van der Merwe, Magriet A van der Nest, P Markus Wilken, Michael J Wingfield
The genomes of Ceratocystis eucalypticola, Chrysoporthe cubensis, Chrysoporthe deuterocubensis, Davidsoniella virescens, Fusarium temperatum, Graphilbum fragrans, Penicillium nordicum and Thielaviopsis musarum are presented in this genome announcement. These seven genomes are from plant pathogens and otherwise economically important fungal species. The genome sizes range from 28 Mb in the case of T. musarum to 45 Mb for Fusarium temperatum. These genomes include the first reports of genomes for the genera Davidsoniella, Graphilbum and Thielaviopsis...
December 2015: IMA Fungus
Marco Thines, Sabine Telle, Young-Joon Choi, Yu Pei Tan, Roger G Shivas
So far 19 genera of downy mildews have been described, of which seven are parasitic to grasses. Here, we introduce a new genus, Baobabopsis, to accommodate two distinctive downy mildews, B. donbarrettii sp. nov., collected on Perotis rara in northern Australia, and B. enneapogonis sp. nov., collected on Enneapogon spp. in western and central Australia. Baobabopsis donbarrettii produced both oospores and sporangiospores that are morphologically distinct from other downy mildews on grasses. Molecular phylogenetic analyses showed that the two species of Baobabopsis occupied an isolated position among the known genera of graminicolous downy mildews...
December 2015: IMA Fungus
Jill E Demers, Megan K Romberg, Lisa A Castlebury
Rust fungi infecting hollyhock and other plants in Malveae are frequently intercepted at ports of entry to the USA, particularly Puccinia malvacearum and P. heterogenea. These two species can be difficult to distinguish and can be further confused with other, less common species of microcyclic rust fungi infecting hollyhock: P. heterospora, P. lobata, P. platyspora, and P. sherardiana. Molecular phylogenetic analysis revealed that P. malvacearum and P. heterogenea are closely related, along with P. sherardiana and P...
December 2015: IMA Fungus
Janneke Aylward, Léanne L Dreyer, Emma T Steenkamp, Michael J Wingfield, Francois Roets
Two polyphyletic genera of ophiostomatoid fungi are symbionts of Proteaceae in southern Africa. One of these, Knoxdaviesia, includes two closely related species, K. proteae and K. capensis, that have overlapping geographical distributions, but are not known to share Protea host species. Knoxdaviesia capensis appears to be a generalist that occupies numerous hosts, but has never been found in P. repens, the only known host of K. proteae. In this study, extensive collections were made from P. repens and isolates were identified using DNA sequence comparisons...
December 2015: IMA Fungus
Uwe Braun, Pedro W Crous, Chiharu Nakashima
The present paper continues a series of comprehensive taxonomic treatments of cercosporoid fungi (formerly Cercospora s. lat.), belonging to the Mycosphaerellaceae (Ascomycota). The fourth contribution of this series initiates treatments of cercosporoid fungi on dicots and comprises species occurring on hosts belonging the the families Acanthaceae, Actinidiaceae, Adoxaceae, Aizoaceae, Altingiaceae, and Amaranthaceae. The species are described and illustrated in alphabetical order under the particular cercosporoid genera, supplemented by keys to the species concerned...
December 2015: IMA Fungus
Danny Haelewaters, Michał Gorczak, Walter P Pfliegler, András Tartally, Marta Tischer, Marta Wrzosek, Donald H Pfister
Laboulbeniales is one of the most peculiar orders of Ascomycota. These fungi are characterized by an ectoparasitic life-style on arthropods, determinate growth, lack of an asexual stage, high species richness, and intractability to culture. The order Laboulbeniales, sister to Pyxidiophorales, has only recently been assigned a separate class, the Laboulbeniomycetes, based on very few ribosomal DNA sequences. So far, DNA isolations and PCR amplifications have proven difficult. Here, we provide details of isolation techniques and the application of commercially available kits that enable efficient and reliable genetic analyses of these fungi...
December 2015: IMA Fungus
Joseph W Spatafora, C Alisha Quandt, Ryan M Kepler, Gi-Ho Sung, Bhushan Shrestha, Nigel L Hywel-Jones, J Jennifer Luangsa-Ard
Based on the taxonomic and nomenclatural recommendations of Quandt et al. (2014) new species combinations are made for Ophiocordycipitaceae. These new combinations are compliant with recent changes in the International Code of Nomenclature for algae, fungi, and plants (ICN) and the abolition of the dual system of nomenclature for fungi. These changes include 10 new combinations into Drechmeria, four new combinations into Harposporium, 23 new combinations and 15 synonymies in Ophiocordyceps, and one new combination into Purpureocillium...
December 2015: IMA Fungus
D Rabern Simmons, Ryan M Kepler, Stephen A Rehner, Eleanor Groden
Hirsutella (Ophiocordycipitaceae: Hypocreales) is a genus of insect, mite, and nematode pathogens with an asexual morph, which generally produce a mucilaginous cluster of one or several conidia on phialides that are basally subulate and taper to a fine neck. The generic name Hirsutella has been proposed for suppression in favour of Ophiocordyceps as a consequence of the ending of dual nomenclature for different morphs of pleomorphic fungi in 2011. Though the generic name is well established, geographically dispersed, and speciose, exceptionally few sequences are available in online databases...
December 2015: IMA Fungus
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