- 著者
- Yukito Tochihara Tomoya Hirao Muneyuki Ohmae Kentaro Hosaka Tsuyoshi Hosoya
- 出版者
- The Mycological Society of Japan
- 雑誌
- Mycoscience (ISSN:13403540)
- 巻号頁・発行日
- pp.MYC534, (Released:2021-05-07)
Microstoma longipilum sp. nov. collected from two localities in Japan is described. It is characterized by long apothecial hairs and salmon pink discs. Molecular phylogenetic analyses supported the novelty of the fungus. We additionally reported the overlooked morphology of hyphal mats, conidiogenous cells produced directly from ascospores, and conidia. With the addition of M. longipilum, now six species of Microstoma are documented in Japan.
- 著者
- Tsuyoshi Hosoya
- 出版者
- National Museum of Nature and Sciece (National Science Museum, Tokyo)
- 雑誌
- 国立科学博物館研究報告B類(植物学) (ISSN:18819060)
- 巻号頁・発行日
- vol.48, no.2, pp.39-45, 2022-05-20 (Released:2022-05-20)
- 参考文献数
- 16
A detailed description, macro- and microphotographs, and line drawings are given for a new record of an operculate discomycete, Byssonectria cartilaginea. A note is given for a previously confused pezizalean discomycete, Phylloscypha phyllogena.
- 著者
- Hiyori Itagaki Tsuyoshi Hosoya
- 出版者
- The Mycological Society of Japan
- 雑誌
- Mycoscience (ISSN:13403540)
- 巻号頁・発行日
- vol.62, no.6, pp.373-381, 2021-11-20 (Released:2021-11-20)
- 参考文献数
- 38
- 被引用文献数
- 3
Fungi exhibit saprophytic, parasitic, and symbiotic lifestyles, and flexibly switching between them by the environmental changes and host conditions. However, only a few studies have elucidated the detailed changes in fungal DNA or morphology, including the formation of reproductive structures along with lifestyle switching. We hypothesized that Pyrenopeziza protrusa, which occurs abundantly and specifically on Magnolia obovata as a saprophyte, is also associated with living hosts and switches its lifestyles as part of its lifecycle. To elucidate this hypothesis, we periodically sampled the fresh/fallen leaves of M. obovata to observe the seasonal occurrence of reproductive structures for the isolation and detection/quantification of P. protrusa DNA with newly developed species-specific primers. The isolation frequency and amount of P. protrusa DNA drastically increased in the fresh leaves just before defoliation in autumn, but remained high in fallen leaves from autumn to spring. Abundant production of conidiomata and apothecia was also observed in the fallen leaves with increasing DNA content. These results clarified a large part of the lifecycle of P. protrusa, suggesting that the lifestyle is switched from symbiotic to saprophytic stage by significantly increasing the amount of DNA in response to host conditions according to the seasonal variations.
- 著者
- Hiroki Sato Sayaka Ban Tsuyoshi Hosoya
- 出版者
- The Mycological Society of Japan
- 雑誌
- Mycoscience (ISSN:13403540)
- 巻号頁・発行日
- pp.MYC594, (Released:2022-12-26)
Dr. Kobayasi and Mr. Shimizu described 31 species of Cordyceps infecting Lepidoptera. Holotype specimens of 14 species and two authentic specimens of one of the 31 species were rediscovered from a herbarium of the National Museum of Nature and Science (TNS). Registration numbers (TNS-F-number) were given to these 16 specimens, and one was lectotypified as follows. Holotypes: Metarhizium indigoticum TNS-F-230337; Yosiokobayasia kusanagiensis TNS-F-197994 (Clavicipitaceae); Beauveria hepialidicola (Kobayasi & Shimizu) Hirok. Sato, S. Ban & Hosoya, comb. nov. TNS-F-197986; Cordyceps ampullacea TNS-F-197981, Cordyceps militaris f. alba TNS-F-230340, Cordyceps ochraceostromata TNS-F-195471, and Cordyceps rosea TNS-F-197972 (Cordyceps sensu stricto, Cordycipitaceae); Ophiocordyceps aurantia TNS-F-195485, Ophiocordyceps cochlidiicola TNS-F-195470, and Ophiocordyceps hiugensis TNS-F-197978 (Ophiocordycipitaceae); and Cordyceps changpaishanensis TNS-F-195501, Cordyceps ootakiensis TNS-F-197976, Cordyceps shimizui TNS-F-197995, and Cordyceps sulfurea TNS-F-197974 (Cordyceps sensu lato). Lectotype: Cordyceps bulolensis TNS-F-230327 (Cordyceps sensu lato). A new combination Beauveria hepialidicola comb. nov., is proposed for Cordyceps hepialidicola based on morphological observations.
- 著者
- Yoshinori TAKAMI Kyung-Ok NAM Youki TAKAKI Sho KADEKARU Chizuka HEMMI Tsuyoshi HOSOYA Yumi UNE
- 出版者
- JAPANESE SOCIETY OF VETERINARY SCIENCE
- 雑誌
- Journal of Veterinary Medical Science (ISSN:09167250)
- 巻号頁・発行日
- pp.21-0177, (Released:2021-06-25)
- 被引用文献数
- 8
Ophidiomycosis is an emerging infectious disease caused by the fungus Ophidiomyces ophiodiicola, which has been affecting wild and captive snakes in North America, Europe, and Australia. We report 12 cases of suspected ophidiomycosis in captive colubrid snakes in Japan. Pathological and microbiological examinations were performed, and the results confirmed the diagnosis of ophidiomycosis in two snakes, which indicated that the remaining sympatrically raised snakes also had ophidiomycosis since they exhibited similar lesions. This is the first report of ophidiomycosis in Asia caused by O. ophiodiicola. To prevent the expansion of ophidiomycosis in the natural environment in Japan, there is a need to evaluate the ophidiomycosis carrier status of imported snakes, the pathogenicity of the infection in native snakes, and the prevalence and distribution of O. ophiodiicola in wild and captive snakes. Measures also must be taken to prevent endemicity globally.