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Mycologia

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https://www.readbyqxmd.com/read/28762885/spring-and-early-summer-species-of-cortinarius-subgenus-telamonia-section-colymbadini-and-flavobasilis-in-the-mountains-of-western-north-america
#1
Joseph F Ammirati, Tuula Niskanen, Kare Liimatainen, Dimitar Bojantchev, Ursula Peintner, Regina Kuhnert-Finkernagel, Cathy Cripps
Seven species of Cortinarius, subgenus Telamonia, section Colymbadini and /Flavobasilis, are reported from conifer forests in the mountains of western North America. They typically produce basidiomes in the spring and summer. Only one species, C. colymbadinus, is widespread, occurring in Europe and western North America, but to date not reported from California. Cortinarius bridgei, C. flavobasilis, C. rumoribrunsi, C. vernalishastensis, and C. vernalisierraensis are new species. The first two are found throughout the western mountains, whereas the latter three thus far are known only from California...
July 11, 2017: Mycologia
https://www.readbyqxmd.com/read/28759322/diversity-and-dynamics-of-the-dna-and-cdna-derived-compost-fungal-communities-throughout-the-commercial-cultivation-process-for-agaricus-bisporus
#2
C F McGee, H Byrne, A Irvine, J Wilson
Commercial cultivation of the button mushroom Agaricus bisporus is performed through the inoculation of a semipasteurized composted material. Pasteurization of the compost material prior to inoculation results in a substrate with a fungal community that becomes dominated by A. bisporus. However, little is known about the composition and activity in the wider fungal community beyond the presence of A. bisporus in compost throughout the mushroom cropping process. In this study, the fungal cropping compost community was characterized by sequencing nuc rDNA ITS1-5...
July 6, 2017: Mycologia
https://www.readbyqxmd.com/read/28723242/interspecific-and-intraspecific-hybrid-epichlo%C3%A3-species-symbiotic-with-the-north-american-native-grass-poa-alsodes
#3
Tatsiana Shymanovich, Nikki D Charlton, Ashleigh M Musso, Jonathan Scheerer, Nadja B Cech, Stanley H Faeth, Carolyn A Young
The endophyte presence and diversity in natural populations of Poa alsodes were evaluated along a latitudinal transect from the southern distribution range in North Carolina to New York. Two distinct Epichloë hybrid taxa were identified from 23 populations. Each taxon could easily be distinguished by polymerase chain reaction (PCR) genotyping with primers designed to mating type genes and alkaloid biosynthesis genes that encode key pathway steps for ergot alkaloids, indole-diterpenes, lolines, and peramine...
June 26, 2017: Mycologia
https://www.readbyqxmd.com/read/28641037/powdery-mildews-on-lilac-in-western-north-america-include-phyllactinia-syringae-sp-nov
#4
Harold J Larsen, Uwe Braun, Cheryl Blomquist, Patrick Woods, S Krishna Mohan
Two powdery mildews, Erysiphe syringae and the previously undescribed Phyllactinia syringae, sp. nov., occur on lilac in western North America. Phyllactinia syringae is found on common lilac, whereas E. syringae is found on Chinese lilac and, occasionally, common lilac. Infection by P. syringae is extremely unobtrusive until formation of a hypophyllous mycelial mat with chasmothecia in late fall. Infection by E. syringae in late summer is conspicuous, with its thick, superficial mycelial mat on the leaf upper surface detracting from the aesthetic appearance of the bush...
May 17, 2017: Mycologia
https://www.readbyqxmd.com/read/28636496/the-genus-pulveroboletus-boletaceae-boletales-in-china
#5
Nian-Kai Zeng, Zhi-Qun Liang, Li-Ping Tang, Yan-Chun Li, Zhu L Yang
Species of Pulveroboletus (Boletaceae, Boletales) in China are investigated on the basis of morphology and molecular phylogenetic analyses of DNA sequences from nuc rDNA region encompassing the internal transcribed spacers 1 and 2, along with the 5.8S rDNA (ITS) and nuc 28S rDNA D1-D2 domains (28S) and sequences from the translation elongation factor 1-α gene (TEF1). Nine species are recognized in the country, three of them are described as new: P. flaviscabrosus, P. rubroscabrosus, and P. subrufus, five of them are previous described taxa: P...
May 17, 2017: Mycologia
https://www.readbyqxmd.com/read/28636469/ten-new-species-of-macalpinomyces-on-eriachne-in-northern-australia
#6
Ying-Ming Li, Roger G Shivas, Alistair R McTaggart, Peng Zhao, Lei Cai
Macalpinomyces was established in 1977, with the type species M. eriachnes described from a specimen collected in northern Australia on the grass Eriachne sp. in 1855. Subsequently, M. eriachnes has been reported on more than 21 species of Eriachne in northern Australia. In this study, a polyphasic approach was employed to determine whether M. eriachnes masked cryptic diversity. On the basis of morphology, multilocus phylogeny, and coalescent methods of generalized mixed Yule-coalescent (GMYC) and Poisson tree processes (PTP) models, 26 specimens of Macalpinomyces on 13 species of Eriachne held in Australian herbaria were studied...
May 12, 2017: Mycologia
https://www.readbyqxmd.com/read/28498789/corrigendum
#7
(no author information available yet)
No abstract text is available yet for this article.
May 12, 2017: Mycologia
https://www.readbyqxmd.com/read/28641042/resolving-the-melampsora-epitea-complex
#8
Peng Zhao, Makoto Kakishima, Qi Wang, Lei Cai
Melampsora epitea (Pucciniales, Basidiomycota) has been widely known as the main rust pathogen on willows, but its species boundary has been extremely confusing. Melampsora epitea was often confused with several morphologically similar species, such as M. arctica, M. humilis, and M. epiphylla. Recent DNA-based studies using specimens from North America and Europe suggested that M. epitea was a complex of several phylogenetic species. In this study, we examined the species boundary of M. epitea based on rDNA phylogeny and the general mixed Yule coalescent (GMYC) model from 534 specimens...
May 11, 2017: Mycologia
https://www.readbyqxmd.com/read/28609221/north-american-matsutake-names-clarified-and-a-new-species-described
#9
Steven A Trudell, Jianping Xu, Irja Saar, Alfredo Justo, Joaquin Cifuentes
Tricholoma matsutake, known widely as "matsutake," has great commercial and cultural significance in Japan. Because Japanese production is insufficient to meet the high domestic demand, morphologically similar mushrooms, thought by many to belong to T. magnivelare, are imported from western North America. However, molecular data produced since the early 2000s have indicated that more than one species of matsutake occur in North America and this raises the question of correct naming for the different species...
May 10, 2017: Mycologia
https://www.readbyqxmd.com/read/28513294/efficacy-of-propidium-iodide-and-fun-1-stains-for-assessing-viability-in-basidiospores-of-rhizopogon-roseolus
#10
Elena Fernández-Miranda, Juan Majada, Abelardo Casares
The use of spores in applications of ectomycorrhizal fungi requires information regarding spore viability and germination, especially in genera such as Rhizopogon with high rates of spore dormancy. The authors developed a protocol to assess spore viability of Rhizopogon roseolus using four vital stains to quantify spore viability and germination and to optimize storage procedures. They showed that propidium iodide is an excellent stain for quantifying nonviable spores. Observing red fluorescent intravacuolar structures following staining with 2-chloro-4-(2,3-dihydro-3-methyl-(benzo-1,3-thiazol-2-yl)-methylidene)-1-phenylquinolinium iodide (FUN-1) can help identify viable spores that are activated...
May 2, 2017: Mycologia
https://www.readbyqxmd.com/read/28448771/geosmithia-associated-with-bark-beetles-and-woodborers-in-the-western-usa-taxonomic-diversity-and-vector-specificity
#11
Miroslav Kolařík, Jiri Hulcr, Ned Tisserat, Wilhelm De Beer, Martin Kostovčík, Zuzana Kolaříková, Steven J Seybold, David M Rizzo
Fungi in the genus Geosmithia (Ascomycota: Hypocreales) are frequent associates of bark beetles and woodborers that colonize hardwood and coniferous trees. One species, Geosmithia morbida, is an economically damaging invasive species. The authors surveyed the Geosmithia species of California and Colorado, USA, to (i) provide baseline data on taxonomy of Geosmithia and beetle vector specificity across the western USA; (ii) investigate the subcortical beetle fauna for alternative vectors of the invasive G. morbida; and (iii) interpret the community composition of this region within the emerging global biogeography of Geosmithia...
April 24, 2017: Mycologia
https://www.readbyqxmd.com/read/28463625/two-new-species-in-the-suillus-spraguei-complex-from-china
#12
Rui Zhang, Gregory M Mueller, Xiao-Fei Shi, Pei-Gui Liu
Suillus spraguei, synonym S. pictus, has been reported from eastern North America and eastern Asia associated with Pinus subgenus Strobus. Published phylogenetic analyses of rRNA internal transcribed spacer (ITS) sequence and population genetic studies indicated that S. spraguei as currently circumscribed might contain several geographically distinct species. This study examined this possibility through a multigene analysis of S. spraguei specimens from eastern North America and eastern Asia. These specimens were associated with Pinus strobus, P...
April 19, 2017: Mycologia
https://www.readbyqxmd.com/read/28494211/pecoramyces-ruminantium-gen-nov-sp-nov-an-anaerobic-gut-fungus-from-the-feces-of-cattle-and-sheep
#13
Radwa A Hanafy, Mostafa S Elshahed, Audra S Liggenstoffer, Gareth W Griffith, Noha H Youssef
The anaerobic gut fungi (AGF) inhabit the rumen and alimentary tracts of multiple ruminant and nonruminant herbivores, belong to a distinct phylum-level lineage (Neocallimastigomycota), and play an important role in plant biomass degradation in many herbivores. As part of a wider effort to obtain AGF with high lignocellulolytic capacities, we isolated and characterized four different AGF strains from the feces of cattle and sheep. Microscopically, isolates produced monocentric thalli and monoflagellated zoospores...
April 18, 2017: Mycologia
https://www.readbyqxmd.com/read/28509612/defining-the-phylogenetic-position-of-amanita-species-from-andean-colombia
#14
Natalia Vargas, Carlos José Pardo-de La Hoz, Giovanna Danies, Ana Esperanza Franco-Molano, Pedro Jiménez, Silvia Restrepo, Alejandro Grajales
Amanita is a worldwide-distributed fungal genus, with approximately 600 known species. Most species within the genus are ectomycorrhizal (ECM), with some saprotrophic representatives. In this study, we constructed the first comprehensive phylogeny including ECM species from Colombia collected in native Quercus humboldtii forests and in introduced Pinus patula plantations. We included 8 species (A. brunneolocularis, A. colombiana, A. flavoconia, A. fuligineodisca, A. muscaria, A. rubescens, A. sororcula, and A...
April 12, 2017: Mycologia
https://www.readbyqxmd.com/read/28506119/study-of-the-genetic-diversity-of-the-aflatoxin-biosynthesis-cluster-in-aspergillus-section-flavi-using-insertion-deletion-markers-in-peanut-seeds-from-georgia-usa
#15
Paola C Faustinelli, Edwin R Palencia, Victor S Sobolev, Bruce W Horn, Hank T Sheppard, Marshall C Lamb, Xinye M Wang, Brian E Scheffler, Jaime Martinez Castillo, Renée S Arias
Aflatoxins are among the most powerful carcinogens in nature. The major aflatoxin-producing fungi are Aspergillus flavus and A. parasiticus. Numerous crops, including peanut, are susceptible to aflatoxin contamination by these fungi. There has been an increased use of RNA interference (RNAi) technology to control phytopathogenic fungi in recent years. In order to develop molecular tools targeting specific genes of these fungi for the control of aflatoxins, it is necessary to obtain their genome sequences. Although high-throughput sequencing is readily available, it is still impractical to sequence the genome of every isolate...
April 12, 2017: Mycologia
https://www.readbyqxmd.com/read/28486030/two-new-species-of-phylloporus-from-bangladesh-with-morphological-and-molecular-evidence
#16
Iqbal Hosen, Tai-Hui Li
Two new species of Phylloporus from Bangladesh forests dominated by Shorea robusta are described and illustrated, based on morphological and molecular phylogenetic evidence. Phylloporus attenuatus is characterized by its wine-red to brownish-red pilei, decurrent lamellae that stain blue, downwards tapering stipe, a trichodermium pileipellis, and ellipsoidal-ovoid to ellipsoidal basidiospores (7-8 × 4-5 µm). Phylloporus catenulatus is characterized by its small-sized basidiomata with reddish-brown pilei, narrowly decurrent with distant lamellae that stain blue, a subepithelium pileipellis, and ellipsoidal to ellipsoidal-ovoid basidiospores (8-9...
April 4, 2017: Mycologia
https://www.readbyqxmd.com/read/28489971/phylogenetic-systematics-of-syncephalis-zoopagales-zoopagomycotina-a-genus-of-ubiquitous-mycoparasites
#17
Katherine L Lazarus, Gerald L Benny, Hsiao-Man Ho, Matthew E Smith
We examined phylogenetic relationships among species of the mycoparasite genus Syncephalis using sequences from three nuclear ribsosomal DNA genes (18S, 5.8S, and 28S nuc rDNA) and a gene encoding the largest subunit of RNA polymerase II (RPB1). Our data set included 88 Syncephalis isolates comprising 23 named species and several unnamed taxa. We also revived a culturing technique using beef liver and cellophane to grow several Syncephalis isolates without their host fungi to obtain pure parasite DNA. Most isolates, however, were grown in co-cultures with their host fungi, so we designed Syncephalis-specific primers to obtain sequence data...
March 15, 2017: Mycologia
https://www.readbyqxmd.com/read/28410010/phylogeny-and-diversity-of-fomitiporella-hymenochaetales-basidiomycota
#18
Xiao-Hong Ji, Josef Vlasák, Li-Wei Zhou, Fang Wu, Yu-Cheng Dai
Fomitiporella accommodates polypores producing annual to perennial basidiocarps with an indistinct subiculum (very thin to almost lacking), mostly a dimitic hyphal structure, lacking any kind of setae, with brownish, thick-walled basidiospores, and causing a white rot. Previously, only a few samples of Fomitiporella were studied on the basis of morphological and nuc 28S rDNA (28S)-based phylogenetic analyses. In this study, we made a comprehensive study on Fomitiporella on the basis of collections from Central America, USA, Europe, and China...
March 15, 2017: Mycologia
https://www.readbyqxmd.com/read/28418787/lulworthia-atlantica-a-new-species-supported-by-molecular-phylogeny-and-morphological-analysis
#19
Egídia Azevedo, Margarida Barata, Maria Isabel Marques, Maria Filomena Caeiro
This study presents morphological and molecular evidence for the establishment of a new species of Lulworthia based on the evaluation of 11 isolates of Lulworthiales collected in two marinas on the west coast of Portugal initially classified as Lulworthia sp. Maximum likelihood and Bayesian methods were applied to obtain phylogenetic trees for 18S-28S and internal transcribed spacer (ITS1-5.8S-ITS2 = internal transcribed spacer [ITS]) nuc rDNA. The isolates consistently grouped together in a distinct and highly supported clade; all other Lulworthiales analyzed, including the available sequences of Lulworthia spp...
March 9, 2017: Mycologia
https://www.readbyqxmd.com/read/28422608/six-new-soil-inhabiting-cladosporium-species-from-plateaus-in-china
#20
Rui Ma, Qian Chen, Yunliu Fan, Qi Wang, Sanfeng Chen, Xingzhong Liu, Lei Cai, Bin Yao
Cladosporium species are ubiquitous in various environments but are hitherto rarely isolated from soil. In the present study, six new Cladosporium species inhabiting the plateau soils of China are described as C. neopsychrotolerans, C. paralimoniforme, C. prolongatum, C. sinuatum, C. tianshanense, and C. verruculosum. These species are phylogenetically distinct and morphologically different from known species. This study increased the number of species classified in the C. cladosporioides and C. herbarum complexes and revealed Chinese plateau soil as a rich niche of Cladosporium species diversity...
March 8, 2017: Mycologia
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