Cited by 4Plant Pathogens and Fungal DiseasesAntifungal resistance and susceptibilityIndoor Air Quality and Microbial Exposure

Diversity and Distribution of Aspergillus fumigatus and Its Related Species in Izu and Ogasawara Islands, Japan

Open access
Hirose, Dai, Watanabe, Kohei, Hagiuda, Ryo, Tachikawa, Ryuri, Kamijo, Takashi, Yaguchi, Takashi, Hirota, Mitsuru·2022·Medical Mycology Journal

Abstract

The taxon Aspergillus section Fumigati comprises several causative agents of aspergillosis. Here, the distribution of Aspergillus sect. Fumigati in outdoor environments of Izu and Ogasawara Islands was investigated. Different strains were isolated from soil samples collected from 68 sites on 9 islands (Izu-oshima, Toshima, Shikinejima, Kozushima, Miyakejima, Hachijojima, Mukojima, Chichijima, and Hahajima), including different landscapes, and identified using morphological characteristics and calmodulin (CaM) sequences. Seven Aspergillus sect. Fumigati species were identified. The occurrence frequency of Aspergillus fumigatus was higher in forest sites on the islands, except for Ogasawara Islands, whereas that of species other than A. fumigatus was higher in bare land and grassland sites on all islands. The occurrence frequency of A. fumigatus was more than 50% on islands between Izu-oshima and Toshima, decreased on islands between Shikinejima and Hachijojima, and was zero on Ogasawara Islands. Considering other Aspergillus species, Aspergillus felis showed high occurrence frequency on islands between Izu-oshima and Shikinejima, Aspergillus pseudoviridinutans on islands between Kozushima and Hachijojima, and Aspergillus udagawae on Ogasawara Islands. At two study sites (grassland and forest sites), the soil was sampled throughout the year to evaluate whether the occurrence frequency of each fungal species was affected by sampling season. At the grassland site, A. pseudoviridinutans was isolated at more than 90% frequency, regardless of the sampling season. A. fumigatus occurrence frequency at the forest site ranged from 0% to 60% and greatly varied among sampling seasons. Thus, differences in island location and landscape affected the distribution of Aspergillus sect. Fumigati.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.3314/mmj.22-00017

Cites

33 of 33 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Hirose, D., Watanabe, K., Hagiuda, R., Tachikawa, R., Kamijo, T., Yaguchi, T., & Hirota, M.
Affiliations
  • Nihon University (JP)
  • University of Tsukuba (JP)
  • Medical Mycology Research Center, Chiba University (JP)
Venue
Medical Mycology Journal
Published
2022-10-31
Volume
63
Issue
4
Pages
99-107
ISSN
  • 2185-6486 (ISSN-L)
  • 2186-165X
OpenAlex
W4310702763
Cited by
4
References
33
Citations by year
2026: 2 · 2025: 1 · 2023: 1
FWCI
0.27
Type
journal article
Language
en
Open access
Locations
  • Medical Mycology Journal (publishedVersion)
  • PubMed (publishedVersion)
Funders
Japan Society for the Promotion of Science (19K06826)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Plant Pathogens and Fungal Diseases
  • Health Sciences › Medicine › Infectious Diseases › Antifungal resistance and susceptibility
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Indoor Air Quality and Microbial Exposure
Keywords
Aspergillus fumigatus, Aspergillus section Fumigati, aspergillosis, soil fungi, fungal diversity, fungal distribution, Izu Islands, Ogasawara Islands, seasonal variation, landscape impact
MeSH terms
Aspergillosis, Aspergillus fumigatus, Japan, Soil, Islands

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review