Taxonomic studies on new or critical fungi of non-pathogenic Onygenales 1

Udagawa, Shun‐ichi; Uchiyama, Sadao

doi:10.1007/bf02463965

Cited by 15 publications

(10 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the new variety Pseudogymnoascus roseus var. ornatus (Udagawa and Uchiyama, 1999) has ascospores very similar in ornamentation to those of G.…”

Section: Discussionmentioning

confidence: 95%

New species and records of saprophytic ascomycetes (Myxotrichaceae) from decaying logs in the boreal forest

2000

View full text Add to dashboard Cite

Decayed wood from fallen white spruce (Picea glauca) and trembling aspen (Populus tremuloides) collected in northeastern Alberta, Canada, was the source of new isolates of species in the ascomycete genera Gymnostellatospora and Pseudogymnoascus. In addition to new reports of G. japonica, G. frigida and P. roseus, two new species are described. Gymnostellatospora canadensis sp. nov. resembles G.japonica but differs in producing brown ascomata and in the formation of an arthroconidial anamorph. Gymnostellatospora subnuda sp. nov. is distinct in lacking differentiated peridial hyphae. Gymnostellatospora alpina was not found in decayed wood but is reviewed based on extralimital material. A dichotomous key to the five species of Gymnostellatospora is provided.

show abstract

“…However, the new variety Pseudogymnoascus roseus var. ornatus (Udagawa and Uchiyama, 1999) has ascospores very similar in ornamentation to those of G.…”

Section: Discussionmentioning

confidence: 95%

New species and records of saprophytic ascomycetes (Myxotrichaceae) from decaying logs in the boreal forest

2000

View full text Add to dashboard Cite

show abstract

“…Pd is confirmed in seven North American [1, 4] and 13 European species of bats [4, 9]. The natural history of the genus Pseudogymnoascus and its allies indicate that they are commonly isolated from soils in colder regions of the world [16]. Unlike Pd many of its close relatives are cellulolytic saprobes and non-pathogenic [16, 17].…”

Section: Introductionmentioning

confidence: 99%

Using a Novel Partitivirus in Pseudogymnoascus destructans to Understand the Epidemiology of White-Nose Syndrome

et al. 2016

View full text Add to dashboard Cite

White-nose syndrome is one of the most lethal wildlife diseases, killing over 5 million North American bats since it was first reported in 2006. The causal agent of the disease is a psychrophilic filamentous fungus, Pseudogymnoascus destructans. The fungus is widely distributed in North America and Europe and has recently been found in some parts of Asia, but interestingly, no mass mortality is observed in European or Asian bats. Here we report a novel double-stranded RNA virus found in North American isolates of the fungus and show that the virus can be used as a tool to study the epidemiology of White-nose syndrome. The virus, termed Pseudogymnoascus destructans partitivirus-pa, contains 2 genomic segments, dsRNA 1 and dsRNA 2 of 1.76 kbp and 1.59 kbp respectively, each possessing a single open reading frame, and forms isometric particles approximately 30 nm in diameter, characteristic of the genus Gammapartitivirus in the family Partitiviridae. Phylogenetic analysis revealed that the virus is closely related to Penicillium stoloniferum virus S. We were able to cure P. destructans of the virus by treating fungal cultures with polyethylene glycol. Examination of 62 isolates of P. destructans including 35 from United States, 10 from Canada and 17 from Europe showed virus infection only in North American isolates of the fungus. Bayesian phylogenetic analysis using nucleotide sequences of the viral coat protein geographically clustered North American isolates indicating fungal spread followed by local adaptation of P. destructans in different regions of the United States and Canada. This is the first demonstration that a mycovirus potentially can be used to study fungal disease epidemiology.

show abstract

“…Based on a scanning electron microscope (SEM) study on ascospores of this fungus, Udagawa (1997) showed the ascospores to have bivalvate bodies which are ornamented with two widely separated equatorial crests and lobate-tuberculate surfaces. However, further examination of this fungus during our current study and detailed comparison with Kraurogymnocarpa lenticulospora Udagawa et Uchiyama, which had been described as the type species of new genus in 1999 (Udagawa and Uchiyama, 1999a), led us to re-evaluate its assignment in the Onygenales. However, further examination of this fungus during our current study and detailed comparison with Kraurogymnocarpa lenticulospora Udagawa et Uchiyama, which had been described as the type species of new genus in 1999 (Udagawa and Uchiyama, 1999a), led us to re-evaluate its assignment in the Onygenales.…”

Section: Taxonomymentioning

confidence: 79%

“…Note: After the publication of our first report in the series of taxonomic studies on new or critical fungi of non-pathogenic Onygenales (Udagawa and Uchiyama, 1999a), we became aware of the description of U. orissi by Sigler et al (1998by Sigler et al ( , published in 1999. Our new fungus, A. boninensis, is particularly similar to U. orissi.…”

Section: Chrysosporium-likementioning

confidence: 99%