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Studies in Mycology

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https://www.readbyqxmd.com/read/29632417/resolving-the-lophiostoma-bipolare-complex-generic-delimitations-within-lophiostomataceae
#1
A Hashimoto, K Hirayama, H Takahashi, M Matsumura, G Okada, C Y Chen, J W Huang, M Kakishima, T Ono, K Tanaka
Lophiostoma bipolare was taxonomically revised based on the morphological observations and phylogenetic analyses of molecular data from nuclear rDNA SSU-ITS-LSU, TUB , tef1 , and rpb2 genes. Twenty-nine strains were morphologically similar to Lo . bipolare . A total of 174 sequences were generated from the Lo . bipolare complex. Phylogenetic analyses based on TUB sequence revealed 11 distinct species within the Lo. bipolare complex. Morphological features of the ascospores and the anatomical structure of the ascomata from both field collections as well as axenic culture, which have been reported previously as variable features at intraspecific levels, were compared to evaluate the taxonomic reliability of these features...
June 2018: Studies in Mycology
https://www.readbyqxmd.com/read/29276320/a-preliminary-account-of-the-cucurbitariaceae
#2
W M Jaklitsch, J Checa, M N Blanco, I Olariaga, S Tello, H Voglmayr
Fresh collections, type studies and molecular phylogenetic analyses of a multigene matrix of partial nuSSU-ITS-LSU rDNA, rpb2 , tef1 and tub2 sequences were used to evaluate the boundaries of Cucurbitaria in a strict sense and of several related genera of the Cucurbitariaceae . Two species are recognised in Cucurbitaria and 19 in Neocucurbitaria . The monotypic genera Astragalicola , Cucitella , Parafenestella , Protofenestella , and Seltsamia are described as new. Fenestella is here included as its generic type F...
June 2018: Studies in Mycology
https://www.readbyqxmd.com/read/29255336/coelomycetous-dothideomycetes-with-emphasis-on-the-families-cucurbitariaceae-and-didymellaceae
#3
N Valenzuela-Lopez, J F Cano-Lira, J Guarro, D A Sutton, N Wiederhold, P W Crous, A M Stchigel
The taxonomy of the coelomycetes has undergone dramatic changes in recent years, but remains controversial due to the high number of taxa involved, their poor morphological differentiation, the rare occurrence of the sexual morphs, and rapid loss of fertility in vitro. In the present study, we revisited the families Cucurbitariaceae and Didymellaceae (Pleosporales, Dothideomycetes), which include numerous plant pathogens, endophytic species associated with a wide host range, and saprobes. The taxonomy of two of the most relevant genera, i...
June 2018: Studies in Mycology
https://www.readbyqxmd.com/read/29681671/-cladosporium-species-in-indoor-environments
#4
K Bensch, J Z Groenewald, M Meijer, J Dijksterhuis, Ž Jurjević, B Andersen, J Houbraken, P W Crous, R A Samson
As part of a worldwide survey of the indoor mycobiota about 520 new Cladosporium isolates from indoor environments mainly collected in China, Europe, New Zealand, North America and South Africa were investigated by using a polyphasic approach to determine their species identity. All Cladosporium species occurring in indoor environments are fully described and illustrated. Fourty-six Cladosporium species are treated of which 16 species are introduced as new. A key for the most common Cladosporium species isolated from indoor environments is provided...
March 2018: Studies in Mycology
https://www.readbyqxmd.com/read/29367793/phylogenetic-classification-and-generic-delineation-of-calyptosphaeria-gen-nov-lentomitella-spadicoides-and-torrentispora-sordariomycetes
#5
M Réblová, A N Miller, K Réblová, V Štěpánek
The genus Ceratostomella has a long history of taxonomic confusion. While species with evanescent asci have been transferred to the Microascales and Ophiostomatales, the taxonomic status of species with persistent asci has not been completely resolved. In previous studies using DNA sequence data, cultures and morphology, several Ceratostomella spp. were allocated in 13 genera in the Eurotiomycetes and Sordariomycetes. In our study, the systematics of the remaining Ceratostomella spp. with persistent asci is revisited with new collection data, cultures and phylogeny based on novel DNA sequences from six nuclear loci...
March 2018: Studies in Mycology
https://www.readbyqxmd.com/read/29317789/-aspergillus-subgenus-polypaecilum-from-the-built-environment
#6
J B Tanney, C M Visagie, N Yilmaz, K A Seifert
Xerophilic fungi, especially Aspergillus species, are prevalent in the built environment. In this study, we employed a combined culture-independent (454-pyrosequencing) and culture-dependent (dilution-to-extinction) approach to investigate the mycobiota of indoor dust collected from 93 buildings in 12 countries worldwide. High and low water activity (aw ) media were used to capture mesophile and xerophile biodiversity, resulting in the isolation of approximately 9 000 strains. Among these, 340 strains representing seven putative species in Aspergillus subgenus Polypaecilum were isolated, mostly from lowered aw media, and tentatively identified based on colony morphology and internal transcribed spacer rDNA region (ITS) barcodes...
September 2017: Studies in Mycology
https://www.readbyqxmd.com/read/29158611/phylogeny-of-xerophilic-aspergilli-subgenus-aspergillus-and-taxonomic-revision-of-section-restricti
#7
F Sklenář, Ž Jurjević, P Zalar, J C Frisvad, C M Visagie, M Kolařík, J Houbraken, A J Chen, N Yilmaz, K A Seifert, M Coton, F Déniel, N Gunde-Cimerman, R A Samson, S W Peterson, V Hubka
Aspergillus section Restricti together with sister section Aspergillus (formerly Eurotium ) comprises xerophilic species, that are able to grow on substrates with low water activity and in extreme environments. We adressed the monophyly of both sections within subgenus Aspergillus and applied a multidisciplinary approach for definition of species boundaries in sect. Restricti . The monophyly of sections Aspergillus and Restricti was tested on a set of 102 isolates comprising all currently accepted species and was strongly supported by Maximum likelihood (ML) and Bayesian inferrence (BI) analysis based on β-tubulin ( benA ), calmodulin ( CaM ) and RNA polymerase II second largest subunit ( RPB2 ) loci...
September 2017: Studies in Mycology
https://www.readbyqxmd.com/read/29158610/-cephalotrichum-and-related-synnematous-fungi-with-notes-on-species-from-the-built-environment
#8
J H C Woudenberg, M Sandoval-Denis, J Houbraken, K A Seifert, R A Samson
A recent taxonomic revision of Microascaceae with an emphasis on synnematous fungi enabled re-identification of previously isolated indoor strains of Cephalotrichum . All available Cephalotrichum strains from the culture collection of the Westerdijk Institute were studied, 20 originating from the built environment. Phylogenetic relationships were inferred from DNA sequence data from the internal transcribed spacer 1 and 2 and intervening 5.8S nrDNA (ITS), and parts of β-tubulin ( tub2 ) and translation elongation factor 1-α ( tef1 ) genes...
September 2017: Studies in Mycology
https://www.readbyqxmd.com/read/28860671/polyphasic-taxonomy-of-aspergillus-section-aspergillus-formerly-eurotium-and-its-occurrence-in-indoor-environments-and-food
#9
A J Chen, V Hubka, J C Frisvad, C M Visagie, J Houbraken, M Meijer, J Varga, R Demirel, Ž Jurjević, A Kubátová, F Sklenář, Y G Zhou, R A Samson
Aspergillus section Aspergillus (formerly the genus Eurotium ) includes xerophilic species with uniseriate conidiophores, globose to subglobose vesicles, green conidia and yellow, thin walled eurotium-like ascomata with hyaline, lenticular ascospores. In the present study, a polyphasic approach using morphological characters, extrolites, physiological characters and phylogeny was applied to investigate the taxonomy of this section. Over 500 strains from various culture collections and new isolates obtained from indoor environments and a wide range of substrates all over the world were identified using calmodulin gene sequencing...
September 2017: Studies in Mycology
https://www.readbyqxmd.com/read/28413236/scopulariopsis-and-scopulariopsis-like-species-from-indoor-environments
#10
J H C Woudenberg, M Meijer, J Houbraken, R A Samson
Scopulariopsis-like species are often reported from the indoor environment, as well as from clinical samples. The lack of type isolates and thorough phylogenetic studies in the Microascaceae hampered the correct identification of these isolates. Based on recent phylogenetic studies, which resulted in multiple name changes, the aim is to molecularly identify the Scopulariopsis and scopulariopsis-like species which occur in the indoor environment and give an overview of the current species in these genera and their habitats...
September 2017: Studies in Mycology
https://www.readbyqxmd.com/read/29180830/-mycosphaerellaceae-chaos-or-clarity
#11
S I R Videira, J Z Groenewald, C Nakashima, U Braun, R W Barreto, P J G M de Wit, P W Crous
The Mycosphaerellaceae represent thousands of fungal species that are associated with diseases on a wide range of plant hosts. Understanding and stabilising the taxonomy of genera and species of Mycosphaerellaceae is therefore of the utmost importance given their impact on agriculture, horticulture and forestry. Based on previous molecular studies, several phylogenetic and morphologically distinct genera within the Mycosphaerellaceae have been delimited. In this study a multigene phylogenetic analysis (LSU, ITS and rpb2 ) was performed based on 415 isolates representing 297 taxa and incorporating ex-type strains where available...
June 2017: Studies in Mycology
https://www.readbyqxmd.com/read/28966419/phylogenetic-revision-of-camarosporium-pleosporineae-dothideomycetes-and-allied-genera
#12
D N Wanasinghe, K D Hyde, R Jeewon, P W Crous, N N Wijayawardene, E B G Jones, D J Bhat, A J L Phillips, J Z Groenewald, M C Dayarathne, C Phukhamsakda, K M Thambugala, T S Bulgakov, E Camporesi, Y S Gafforov, P E Mortimer, S C Karunarathna
A concatenated dataset of LSU, SSU, ITS and tef1 DNA sequence data was analysed to investigate the taxonomic position and phylogenetic relationships of the genus Camarosporium in Pleosporineae (Dothideomycetes). Newly generated sequences from camarosporium-like taxa collected from Europe (Italy) and Russia form a well-supported monophyletic clade within Pleosporineae. A new genus Camarosporidiella and a new family Camarosporidiellaceae are established to accommodate these taxa. Four new species, Neocamarosporium korfii, N...
June 2017: Studies in Mycology
https://www.readbyqxmd.com/read/28794574/-pseudodidymellaceae-fam-nov-phylogenetic-affiliations-of-mycopappus-like-genera-in-dothideomycetes
#13
A Hashimoto, M Matsumura, K Hirayama, R Fujimoto, K Tanaka
The familial placement of four genera, Mycodidymella , Petrakia , Pseudodidymella , and Xenostigmina , was taxonomically revised based on morphological observations and phylogenetic analyses of nuclear rDNA SSU, LSU, tef1 , and rpb2 sequences. ITS sequences were also provided as barcode markers. A total of 130 sequences were newly obtained from 28 isolates which are phylogenetically related to Melanommataceae ( Pleosporales , Dothideomycetes ) and its relatives. Phylogenetic analyses and morphological observation of sexual and asexual morphs led to the conclusion that Melanommataceae should be restricted to its type genus Melanomma , which is characterised by ascomata composed of a well-developed, carbonaceous peridium, and an aposphaeria-like coelomycetous asexual morph...
June 2017: Studies in Mycology
https://www.readbyqxmd.com/read/28720979/first-report-of-phyllosticta-citricarpa-and-description-of-two-new-species-p-%C3%A2-paracapitalensis-and-p-%C3%A2-paracitricarpa-from-citrus-in-europe
#14
V Guarnaccia, J Z Groenewald, H Li, C Glienke, E Carstens, V Hattingh, P H Fourie, P W Crous
The genus Phyllosticta occurs worldwide, and contains numerous plant pathogenic, endophytic and saprobic species. Phyllosticta citricarpa is the causal agent of Citrus Black Spot disease (CBS), affecting fruits and leaves of several citrus hosts (Rutaceae), and can also be isolated from asymptomatic citrus tissues. Citrus Black Spot occurs in citrus-growing regions with warm summer rainfall climates, but is absent in countries of the European Union (EU). Phyllosticta capitalensis is morphologically similar to P...
June 2017: Studies in Mycology
https://www.readbyqxmd.com/read/28706324/didymellaceae-revisited
#15
Q Chen, L W Hou, W J Duan, P W Crous, L Cai
The Didymellaceae is one of the most species-rich families in the fungal kingdom, and includes species that inhabit a wide range of ecosystems. The taxonomy of Didymellaceae has recently been revised on the basis of multi-locus DNA sequence data. In the present study, we investigated 108 Didymellaceae isolates newly obtained from 40 host plant species in 27 plant families, and various substrates from caves, including air, water and carbonatite, originating from Argentina, Australia, Canada, China, Hungary, Israel, Italy, Japan, South Africa, the Netherlands, the USA and former Yugoslavia...
June 2017: Studies in Mycology
https://www.readbyqxmd.com/read/28663603/stemphylium-revisited
#16
J H C Woudenberg, B Hanse, G C M van Leeuwen, J Z Groenewald, P W Crous
In 2007 a new Stemphylium leaf spot disease of Beta vulgaris (sugar beet) spread through the Netherlands. Attempts to identify this destructive Stemphylium sp. in sugar beet led to a phylogenetic revision of the genus. The name Stemphylium has been recommended for use over that of its sexual morph, Pleospora, which is polyphyletic. Stemphylium forms a well-defined monophyletic genus in the Pleosporaceae, Pleosporales (Dothideomycetes), but lacks an up-to-date phylogeny. To address this issue, the internal transcribed spacer 1 and 2 and intervening 5...
June 2017: Studies in Mycology
https://www.readbyqxmd.com/read/28649153/corynespora-exosporium-and-helminthosporium-revisited-new-species-and-generic-reclassification
#17
H Voglmayr, W M Jaklitsch
Molecular phylogenetic analyses of a multigene matrix of partial nuSSU-ITS-LSU rDNA, rpb2 and tef1 sequences were performed to investigate the phylogenetic relationships of Corynespora, Exosporium and Helminthosporium species. Based on phylogenetic analyses and morphology, the genus Exosporium is synonymised with Helminthosporium, and the genus Corynespora is revealed as polyphyletic. Corynespora smithii is confirmed to be closely related to the generic type C. cassiicola and its morphology is described and illustrated...
June 2017: Studies in Mycology
https://www.readbyqxmd.com/read/28373739/phylogeny-and-taxonomy-of-the-scab-and-spot-anthracnose-fungus-elsino%C3%A3-myriangiales-dothideomycetes
#18
X L Fan, R W Barreto, J Z Groenewald, J D P Bezerra, O L Pereira, R Cheewangkoon, L Mostert, C M Tian, P W Crous
Species of Elsinoë are phytopathogens causing scab and spot anthracnose on many plants, including some economically important crops such as avocado, citrus, grapevines, and ornamentals such as poinsettias, field crops and woody hosts. Disease symptoms are often easily recognisable, and referred to as signature-bearing diseases, for the cork-like appearance of older infected tissues with scab-like appearance. In some Elsinoë-host associations the resulting symptoms are better described as spot anthracnose...
June 2017: Studies in Mycology
https://www.readbyqxmd.com/read/28947840/families-of-diaporthales-based-on-morphological-and-phylogenetic-evidence
#19
I C Senanayake, P W Crous, J Z Groenewald, S S N Maharachchikumbura, R Jeewon, A J L Phillips, J D Bhat, R H Perera, Q R Li, W J Li, N Tangthirasunun, C Norphanphoun, S C Karunarathna, E Camporesi, I S Manawasighe, A M Al-Sadi, K D Hyde
Diaporthales is an important ascomycetous order comprising phytopathogenic, saprobic, and endophytic fungi, but interfamilial taxonomic relationships are still ambiguous. Despite its cosmopolitan distribution and high diversity with distinctive morphologies, this order has received relativelyiaceae, Macrohilaceae, Melanconidaceae, Pseudoplagiostomaceae, Schizoparmaceae, Stilbosporaceae and Sydowiellaceae. Taxonomic uncertainties among genera are also clarified and recurrent discrepancies in the taxonomic position of families within the Diaporthales are discussed...
March 2017: Studies in Mycology
https://www.readbyqxmd.com/read/28663602/genera-of-phytopathogenic-fungi-gophy-1
#20
Y Marin-Felix, J Z Groenewald, L Cai, Q Chen, S Marincowitz, I Barnes, K Bensch, U Braun, E Camporesi, U Damm, Z W de Beer, A Dissanayake, J Edwards, A Giraldo, M Hernández-Restrepo, K D Hyde, R S Jayawardena, L Lombard, J Luangsa-Ard, A R McTaggart, A Y Rossman, M Sandoval-Denis, M Shen, R G Shivas, Y P Tan, E J van der Linde, M J Wingfield, A R Wood, J Q Zhang, Y Zhang, P W Crous
Genera of Phytopathogenic Fungi (GOPHY) is introduced as a new series of publications in order to provide a stable platform for the taxonomy of phytopathogenic fungi. This first paper focuses on 21 genera of phytopathogenic fungi: Bipolaris, Boeremia, Calonectria, Ceratocystis, Cladosporium, Colletotrichum, Coniella, Curvularia, Monilinia, Neofabraea, Neofusicoccum, Pilidium, Pleiochaeta, Plenodomus, Protostegia, Pseudopyricularia, Puccinia, Saccharata, Thyrostroma, Venturia and Wilsonomyces. For each genus, a morphological description and information about its pathology, distribution, hosts and disease symptoms are provided...
March 2017: Studies in Mycology
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