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Masahiko Tanahashi, Jong-Kuk Kim, Kana Watanabe, Takema Fukatsu, Kôhei Kubota
Among insect-fungus relationships, xylose-fermenting Scheffersomyces yeasts are well known for their potential in utilizing wood hemicelluloses and their association with various wood-feeding insects. However, their specificity to host insects or strain-level diversity within host species has not been clearly elucidated. In the insect family Lucanidae, larvae usually feed on decaying wood, and adult females consistently possess a fungus-storage organ, called the mycangium, near the abdominal tip. Here the authors investigated host-symbiont relationships between Scheffersomyces yeast symbionts and small blue stag beetles of the genus Platycerus (Coleoptera: Lucanidae) in East Asia by using intergenic spacer (IGS) region as a genetic marker...
November 9, 2017: Mycologia
Lucia Muggia, Riccardo Mancinelli, Tor Tønsberg, Agnieszka Jablonska, Martin Kukwa, Zdeněk Palice
The genus Cheiromycina is one of the few genera of lichenized hyphomycetes for which no sexual reproductive stages have been observed. The genus includes species from boreal to temperate regions of the Northern Hemisphere where it is found growing on bark or wood. Congeners in Cheiromycina are characterized by a noncorticate thallus, nearly immersed in the substrate and presenting powdery unpigmented sporodochia, and containing chlorococcoid photobionts. The relationships of members of Cheiromycina with other fungi are not known...
November 1, 2017: Mycologia
Julia Pawłowska, Łukasz Istel, Michał Gorczak, Halina Galera, Marta Wrzosek, David L Hawksworth
The holotype of Thyronectria hyperantarctica was re-examined, redescribed, and compared with new collections of an Antarctic bryophilous ascomycete from a similar area. Because the condition of type material was insufficient for molecular studies, the authors designated an epitype from newly collected material with a high degree of morphological similarity to the holotype and paratype material. Phylogenetic analysis of the epitype revealed that its closest phylogenetic affinity was with the family Tilachlidiaceae and it formed a monophyletic group in this lineage within other collections of the species...
October 31, 2017: Mycologia
Li-Ping Tang, Su-See Lee, Nian-Kai Zeng, Qing Cai, Ping Zhang, Zhu L Yang
Some Amanita specimens collected from Malaysia are critically investigated by morphological examination and molecular analysis of two gene fragments, the nuc rDNA partial 28S (28S) gene and the internal transcriber spacer (ITS1-5.8S-ITS2 = ITS) regions. Six phylogenetic species of Amanita section Caesareae are recognized among the studied collections. One of them is described as new, A. malayensis. Four of the phylogenetic species correspond with existing morphology-based taxa: A. aporema, A. javanica, A. princeps, and A...
October 30, 2017: Mycologia
János G Szarkándi, Geert Schmidt-Stohn, Bálint Dima, Shah Hussain, Sándor Kocsubé, Tamás Papp, Csaba Vágvölgyi, László G Nagy
Parasola represents an enigmatic lineage of veil-less, coprinoid fungi in Psathyrellaceae (Agaricales). The species-level taxonomy of the genus has been in a flux recently, resulting in the elimination of some long-established names and the description of new taxa. Here, we reconstruct the phylogeny of Parasola using two nuc rDNA loci, the internal transcribed spacer region (ITS1-5.8S-ITS2) and 28S and identify several putatively undescribed species, of which three are formally described here (Parasola crataegi, P...
October 9, 2017: Mycologia
Peter R Johnston, Duckchul Park, Rob D Smissen
High-throughput sequencing technologies using amplicon approaches have changed the way that studies investigating fungal distribution are undertaken. These powerful and time-efficient technologies have the potential for the first time to accurately map fungal distributions across landscapes or changes in diversity across ecological or biological gradients of interest. There is no requirement for a fungus to form a fruiting body to be detected, and both culturable and nonculturable organisms can be detected...
October 6, 2017: Mycologia
Kazuaki Tanaka, Akira Hashimoto, Misato Matsumura, Toyozo Sato
A new genus, Brevicollum, is established for two new species, B. hyalosporum on Syzygium samarangense and B. versicolor on Volkameria inermis, in Japan. This genus is characterized by the presence of immersed ascomata with an excentric to central, short cylindrical ostiolar neck, thin ascomatal wall, clavate asci with a shallow ocular chamber, and broadly fusiform, hyaline to pale brown ascospores with a sheath. Molecular phylogenetic analyses based on a combined data set of sequences of 18S and 28S nuc rDNA genes and the second largest subunit of RNA polymerase II (RPB2) revealed that Brevicollum is a member of Neohendersoniaceae (Pleosporales, Dothideomycetes)...
October 5, 2017: Mycologia
Zixi Wang, Bainian Sun, Fankai Sun, Jidong Wang, Junling Dong, Mingxuan Sun, Baoxia Du
Several studies have investigated both the paleoclimate and the well-preserved fossil remains from the middle Miocene found in China's Fujian Province. This study describes two new species of Meliolinites, including their fungal hyphae, reproductive structures, and spores. The distribution of modern Meliolaceae indicates that they live in warm, humid, subtropical to tropical climates. Moreover, the fossil leaves and the epiphyllous fungal remains, indicate the prevalence of a warm, humid, subtropical to tropical climate in this area during the middle Miocene...
October 4, 2017: Mycologia
Alyssa M Koehler, H David Shew
Brown patch, caused by multiple species of Rhizoctonia and Rhizoctonia-like fungi, is the most severe summer disease of tall fescue in home lawns across the southeastern United States. Home lawns were surveyed in central North Carolina from 2013 to 2015 to determine the organisms present during typical epidemics of brown patch in tall fescue. Isolates of Rhizoctonia and Rhizoctonia-like fungi were obtained by sampling 147 locations in July 2013 and May and July 2014. In addition, 11 sites were sampled once a week for 12 consecutive weeks from late May to the end of July 2015...
October 4, 2017: Mycologia
Gabriel Moreno, Maria Prieto, Fernando Esteve-Raventós, Ibai Olariaga
Cyphelloid fungi represent a polyphyletic assemblage of reduced agarics, including the brown-spored family Chromocyphellaceae. In order to elucidate the phylogenetic position of Chromocyphellaceae, newly generated sequences of Chromocyphella were included in a multigene alignment of the Agaricineae and phylogenetically analyzed. The current analyses show that the Chromocyphella muscicola specimen used to phylogenetically place Chromocyphellaceae in its original description was misidentified and that the Chromocyphellaceae nests in the Hymenogastraceae, Chromocyphella being sister to Flammula...
September 21, 2017: Mycologia
Stephen W Peterson, Željko Jurjević
Talaromyces strains isolated from maize seeds and the built environment were examined taxonomically because they could not be identified as previously described species. Using phenotypic analysis, DNA sequencing, and phylogenetic and concordance analyses, the authors discovered and described 10 new species in sect. Islandici and 1 new species in sect. Subinflati. Taxonomic novelties in sect. Islandici are Talaromyces delawarensis, T. herodensis, T. juglandicola, T. kilbournensis, T. novojersensis, T. ricevillensis, T...
September 18, 2017: Mycologia
Danny Haelewaters, Walter Rossi
Ten new species of Laboulbeniales parasitic on small carrion beetles (Coleoptera, Leiodidae, Cholevinae) from the American continent are described: Corethromyces bernardii on Dissochaetus spp. from Bolivia, Costa Rica, Ecuador, and the USA; Diphymyces anthracinus on Ptomaphagus brevior from the USA; D. blackwelliae on Ptomaphagus giaquintoi from Guatemala; D. costaricensis on Adelopsis sp. from Costa Rica; D. dichromus on Adelopsis marinae from Argentina; D. newtonii on Ptomaphagus fumosus from the USA; D. obesus on Ptomaphagus brevior from the USA; Diphymyces perreaui on Ptomaphagus nevadicus from the USA; D...
September 14, 2017: Mycologia
Shi-Liang Liu, Yan Zhao, Yu-Cheng Dai, Karen K Nakasone, Shuang-Hui He
The phylogenetic relationship of eight species of Echinodontium, Laurilia, and Perplexostereum of Russulales were analyzed based on sequences of the nuc rDNA ITS1-5.8S-ITS2 (ITS [internal transcribed spacer]) and D1-D2 domains of nuc 28S rDNA (28S). Our results show that Echinodontium tinctorium, E. ryvardenii, and E. tsugicola represent Echinodontium sensu stricto. Based on morphological and phylogenetic evidence, the new genus Echinodontiellum is established to accommodate Echinodontium japonicum. Amylostereum, Echinodontium, Echinodontiellum, and Larssoniporia form the Echinodontiaceae clade...
September 6, 2017: Mycologia
(no author information available yet)
No abstract text is available yet for this article.
May 12, 2017: Mycologia
Terry J Torres-Cruz, Terri L Billingsley Tobias, Maryam Almatruk, Cedar N Hesse, Cheryl R Kuske, Alessandro Desirò, Gian Maria Niccolò Benucci, Gregory Bonito, Jason E Stajich, Christopher Dunlap, A Elizabeth Arnold, Andrea Porras-Alfaro
Illumina amplicon sequencing of soil in a temperate pine forest in the southeastern United States detected an abundant, nitrogen (N)-responsive fungal genotype of unknown phylogenetic affiliation. Two isolates with ribosomal sequences consistent with that genotype were subsequently obtained. Examination of records in GenBank revealed that a genetically similar fungus had been isolated previously as an endophyte of moss in a pine forest in the southwestern United States. The three isolates were characterized using morphological, genomic, and multilocus molecular data (18S, internal transcribed spacer [ITS], and 28S rRNA sequences)...
May 2017: Mycologia
Timothy Y James, Keith A Seifert
No abstract text is available yet for this article.
May 2017: Mycologia
Suzanne Rooney-Latham, Matthias Lutz, Cheryl L Blomquist, Megan K Romberg, Heather J Scheck, Marcin Piątek
White leaf smut is a minor foliar disease of sunflower (Helianthus annuus) in the United States. The disease occurs primarily in greenhouse-grown sunflowers in California and causes leaf spot, defoliation, and a reduction in yield and crop value. Historically, many Entyloma specimens with similar morphological characters, but infecting diverse plant genera including Helianthus, were called Entyloma polysporum. Recent comparative morphological and molecular work has shown that Entyloma species infect hosts within a single genus or species, suggesting that the sunflower Entyloma species may not be E...
May 2017: Mycologia
Michael Bradshaw, Uwe Braun, Monika Götz, Jamjan Meeboon, Susumu Takamatsu
The taxonomic history of the common powdery mildew of Chrysanthemum × morifolium (chrysanthemum, florist's daisy), originally described in Germany as Oidium chrysanthemi, is discussed. The position of O. chrysanthemi was investigated on the basis of morphological traits and molecular phylogenetic analyses. Based on the results of this study, this species, which is closely related to Golovinomyces artemisae, was reassessed and reallocated to Golovinomyces. The phylogenetic analysis and taxonomic reassessment of the chrysanthemum powdery mildew is supplemented by a morphological description, a summary of its worldwide distribution data, and a brief discussion of the introduction of this fungus to North America...
May 2017: Mycologia
Andrea R Garfinkel, Marilinda Lorenzini, Giacomo Zapparoli, Gary A Chastagner
A novel species of Botrytis isolated from peony in Alaska, USA, and grape in Trento District, Italy, was identified based on morphology, pathogenicity, and sequence data. The grape and peony isolates share sequence homology in the glyceraldehyde-3-phosphate dehydrogenase (G3PDH), heat shock protein 60 (HSP60), DNA-dependent RNA polymerase subunit II (RPB2), and necrosis- and ethylene-inducing protein 1 and 2 (NEP1 and NEP2) genes that place them in a distinct group closely related to B. aclada, a globally distributed pathogen of onions...
May 2017: Mycologia
Donald H Pfister, Harold H Burdsall, Teresa Iturriaga, Linda M Kohn, Amy Y Rossman, Wen-Ying Zhuang
"With poetry, the tune is in the words themselves-and once you begin to hear it, it will stay with you." Richard P. Korf, notes to his narration of John Brown's Body.
May 2017: Mycologia
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