Morphology and molecular phylogeny of Brasiliomyces malachrae, a unique powdery mildew distributed in Central and South America
This study was performed to describe the sexual and asexual morphs of B. malachrae on Malvastrum coromandelianum in detail, and to clarify the phylogenetic placement of this fungus. The asexual morph of this species is characterized by having hyaline ectophytic mycelium with lobed hyphal appressoria and catenescent conidia. Molecular phylogenetic analyses based on 18S, 5.8S, and 28S rRNA gene sequences revealed that B. malachrae is a sister to the genus Erysiphe and situated at the boundary between tribes Golovinomyceteae and Erysipheae, which supports its unique phylogenetic position. The evolutionary relationships amon...
Source: Mycoscience - July 11, 2018 Category: Biology Source Type: research
A new species and a new record of Helicomyces from Taiwan
Publication date: Available online 26 May 2018Source: MycoscienceAuthor(s): Chang-Hsin Kuo, Teik-Khiang GohAbstractHelicomyces geniculatus sp. nov. from decaying wood submerged in a freshwater stream at Juchi Town of Alishan area, Chiayi County, Taiwan, is described and illustrated. It differs from other Helicomyces species in having geniculate conidiophores arising from repent hyphae and also borne on erect setae. Abundant stalked sclerotia were also found in this species. Helicomyces torquatus is described in this paper as a new record for Taiwan, with new observation. The phylogenetic relationship of H. geniculatus, H....
Source: Mycoscience - July 11, 2018 Category: Biology Source Type: research
Amazonian bird's nest fungi (Basidiomycota): Current knowledge and novelties on Cyathus species
Publication date: Available online 28 May 2018Source: MycoscienceAuthor(s): Thiago Accioly, Rhudson H.S.F. Cruz, Nathalia M. Assis, Noemia K. Ishikawa, Kentaro Hosaka, María P. Martín, Iuri G. BaseiaAbstractThe genus Cyathus is historically subsampled in the Amazon Forest, which is a potential source of striking taxonomic richness. In this paper, a checklist of Amazonian Cyathus species with detailed descriptions, illustrations and comments of five uncommon species are given. A new species named C. albinus is proposed with morphological and molecular data, being mainly characterized by a light color hirsute exoperidium ...
Source: Mycoscience - July 11, 2018 Category: Biology Source Type: research
Hamatispora, a new genus of aquatic fungi in Microthyriales isolated from fallen leaves in Vietnam
Publication date: Available online 11 June 2018Source: MycoscienceAuthor(s): Le Thi Hoang Yen, Kaoru Yamaguchi, Yasuhisa Tsurumi, Duong Van Hop, Katsuhiko AndoAbstractA new aquatic fungus was isolated from submerged, decaying leaves collected at Phu Quoc Island in Vietnam. The fungus produced hyaline, unique-shaped conidia consisting of a hook-shaped main axis and three arms at the helicoid part of the main axis. Based on its conidial development and morphological characteristics, Hamatispora phuquocensis was newly introduced. Phylogenetic analyses based on LSU nrDNA sequences showed that it clusters with Microthyrium spp....
Source: Mycoscience - July 11, 2018 Category: Biology Source Type: research
Changes of trehalose content and trehalose-degrading activity during fruit-body formation and autolysis in Pleurotus sp.
Publication date: Available online 13 June 2018Source: MycoscienceAuthor(s): Alireza Arastoo, Masami Nakazawa, Tatsuji Sakamoto, Hitoshi Kobayashi, Kenji Ouchi, Satoshi Inatomi, Mitsuhiro UedaAbstractWe studied how the content and degrading activity of trehalose changed during fruit-body development and autolysis. During the process of autolysis, the trehalose content of whole fruit-bodies decreased sharply whereas the trehalose-degrading activity increased toward the inner region from the outer region of the pilei. Conversely, the trehalose content during autolysis decreased toward the inner region from the outer region o...
Source: Mycoscience - July 11, 2018 Category: Biology Source Type: research
Corrigendum to “Two new Cladophialophora species, C. tumbae sp. nov. and C. tumulicola sp. nov., and chaetothyrialean fungi from biodeteriorated samples in the Takamatsuzuka and Kitora Tumuli” [Mycoscience 59 (2018) 75–84]
Publication date: Available online 15 June 2018Source: MycoscienceAuthor(s): Tomohiko Kiyuna, Kwang-Deuk An, Rika Kigawa, Chie Sano, Junta Sugiyama (Source: Mycoscience)
Source: Mycoscience - July 11, 2018 Category: Biology Source Type: research
Species composition and distribution of Coleosporium species on the needles of Pinus densiflora at a semi-natural vegetation succession site in central Japan
Publication date: Available online 18 June 2018Source: MycoscienceAuthor(s): Hiroyuki Suzuki, Dai Hirose, Yuichi YamaokaAbstractColeosporium species cause pine needle rust. Most species have heteromacrocyclic life cycles, and 12 species use Pinus densiflora as aecial hosts. To understand the biology of rust fungi and develop better methods for controlling rust diseases, it is necessary to clarify that which Coleosporium species affect pine trees. However, Coleosporium on pine trees have rarely been identified at the species level because of their morphological similarities. We used polymerase chain reaction - restriction f...
Source: Mycoscience - July 11, 2018 Category: Biology Source Type: research
Morphological and molecular evidence support a new endophytic fungus, Chaetomella endophytica from Japan
Publication date: Available online 19 June 2018Source: MycoscienceAuthor(s): Nakarin Suwannarach, Jaturong Kumla, Kenji Matsui, Saisamorn LumyongAbstractA new endophytic fungus, described herein as Chaetomella endophytica sp. nov., was isolated from stems of Rosa arvensis in Yamaguchi Prefecture, Japan. Morphological investigations revealed that its conidia are shorter and narrower than other known Chaetomella species. Phylogenetic analysis of three combined loci (large subunit, internal transcribed spacer, and small subunit regions of ribosomal DNA) confirmed that it is a new species within the family Chaetomellaceae. A f...
Source: Mycoscience - July 11, 2018 Category: Biology Source Type: research
Lactifluus kigomaensis and L. subkigomaensis: Two look-alikes in Tanzania
Publication date: Available online 30 June 2018Source: MycoscienceAuthor(s): Ruben De Lange, Eske De Crop, Lynn Delgat, Donatha Tibuhwa, Deo Baribwegure, Annemieke VerbekenAbstractA look-alike of Lactifluus kigomaensis, described in 2012 from primary miombo woodlands in the Kigoma Province of northwestern Tanzania, is proposed here as L. subkigomaensis. The phylogeny based on the molecular markers ITS, LSU, RPB1 and RPB2 shows that L. subkigomaensis is a sister species to L. kigomaensis. Detailed descriptions of both species are given here, aiming at finding good characters to unravel these look-alikes. Both species are c...
Source: Mycoscience - July 11, 2018 Category: Biology Source Type: research
Sporocarp δ15N and use of inorganic and organic nitrogen in vitro differ among host-specific suilloid fungi associated with high elevation five-needle pines
Publication date: July 2018Source: Mycoscience, Volume 59, Issue 4Author(s): Robert K. Antibus, Erik A. Hobbie, Cathy L. CrippsAbstractWidespread decline of whitebark and limber pines in the northern Rocky Mountains (USA) has created an imperative to understand functional diversity in their ectomycorrhizal associates. Because suilloid fungi are likely important in successful reestablishment of pines the nitrogen-related functional traits of 28 high-elevation suilloid isolates were examined. Radial growth, mass accumulation and mycelial density were measured for isolates on six different nitrogen sources. The δ15N values o...
Source: Mycoscience - July 11, 2018 Category: Biology Source Type: research
A review of the genus Hebeloma in Svalbard
Publication date: July 2018Source: Mycoscience, Volume 59, Issue 4Author(s): Henry J. Beker, Ursula Eberhardt, Nicole Schütz, Gro GuldenAbstractBetween 1960 and 2009, regular visits to Svalbard were made and a number of Hebeloma spp. were collected by several mycologists. We have studied 249 such collections, many from the Herbarium in Oslo (O) and from the private herbarium of the first author. The collections represent 17 different species. Of the 17 species, five (H. louiseae, H. pallidolabiatum, H. perexiguum, H. pubescens and H. spetsbergense) are only known from Svalbard. In this paper we discuss the habitat and a...
Source: Mycoscience - July 11, 2018 Category: Biology Source Type: research
Spatial diversity of clavarioid mycota (Basidiomycota) at the forest-tundra ecotone
Publication date: July 2018Source: Mycoscience, Volume 59, Issue 4Author(s): Anton G. ShiryaevAbstractThe article studies the change of clavarioid mycota species richness along the longitudinal gradient of climatic continentality in the forest tundra ecotone of Eurasia and the results are discussed for continental and regional levels using the basic climatic variables. It was found that species richness declines, both continentally and regionally, with climate continentality increasing. The Fennoscandian sector situated in the mild maritime climate is the richest, whereas Yakutia, with an ultracontinental harsh climate is ...
Source: Mycoscience - July 11, 2018 Category: Biology Source Type: research
A catalog of fungi recorded from the vicinity of Syowa Station
Publication date: July 2018Source: Mycoscience, Volume 59, Issue 4Author(s): Masaharu TsujiAbstractThe Japanese Antarctic Research Expedition (JARE) was started in 1957. The expedition marked its 60th anniversary in January 2017. In total 76 fungal species (61 ascomycetous fungi, including 9 unidentified species, and 16 basidiomycetous fungi) have thus far been recorded from the area around Syowa Station. In this review, I present a catalog of the fungal species isolated from the vicinity of Syowa Station to mark the 60th anniversary of JARE. (Source: Mycoscience)
Source: Mycoscience - July 11, 2018 Category: Biology Source Type: research
The 10th International Symposium on Arctic and Alpine Mycology
Publication date: July 2018Source: Mycoscience, Volume 59, Issue 4Author(s): Tamotsu Hoshino, Nobuko Tuno, Yousuka Degawa, Taiga Kasuya, Yuka Yajima, Ei Kawahara, Ikuo Nose (Source: Mycoscience)
Source: Mycoscience - July 11, 2018 Category: Biology Source Type: research
Mycological records from ISAM 9, Kevo, Finland
Publication date: July 2018Source: Mycoscience, Volume 59, Issue 4Author(s): Esteri Ohenoja, Anna Liisa Ruotsalainen, Jukka VaurasAbstractISAM 9 (International Symposium of Arctic-Alpine Mycology) was held in August 2012 at the Kevo Lapland Research Station in Utsjoki in northernmost Finnish Lapland. In addition to Utsjoki, some excursions were made in Finnmark, the northernmost part of Norway. Kevo station lies in the subarctic zone characterized by mountain birch (Betula pubescens var. czerepanovii), but the fells reach the arctic tundra zone. Áilegas fells at Utsjoki village and at Nuvvus lie on acid ground as does S...
Source: Mycoscience - July 11, 2018 Category: Biology Source Type: research
