• Parasites, Hosts and Diseases
• /
• 제53권5호
• /
• pp.627-639
• /
• 2015

Metagonimus yokogawai (Katsurada, 1912) Katsurada, 1912 (Trematoda: Heterophyidae) is parasitic in the small intestine of mammals including man and birds in Far Eastern Russia, Korea, Japan, China, and Taiwan. In the present study, the metacercariae and adults of M. yokogawai were redescribed to designate a neotype of this fluke together with reviews of previous studies including study histories from the first discovery to now. We particularly, attempted to review the study histories and morphological descriptions of M. yokogawai for the species validity, and compared with the morphological characteristics and life cycles of the closely related species, Metagonimus takahashii and Metagonimus miyatai. Finally, we proposed a differential key for the 8 known Metagonimus species distributed in East Asia. Metacercariae were obtained from the body muscles of sweetfish (Plecoglossus altivelis) collected in the Asahi River at Takebe-cho, Kita-ku, Okayama City, Okayama Prefecture, Japan. Adults were recovered from the small intestine of Syrian golden hamsters, to which the metacercariae had been fed 14 days before. A neotype was selected out of the present adult specimens. The Asahi River at Takebo-cho became the type locality of M. yokogawai. In conclusion, the present review shows that M. yokogawai, M. takahashii, and M. miyatai are valid and discriminated by means of morphological characteristics.

• Journal of Species Research
• /
• 제1권1호
• /
• pp.35-43
• /
• 2012

Japanese/Korean Amynthas carnosus (Goto & Hatai, 1899) is redescribed from a newly designated Neotype (Tokyo NSMT An435). An annotated synonymy is presented that nominally includes: kyamikia Kobayashi, 1934, monstrifera Kobayashi, 1936, sangyeoli, youngtai, kimhaeiensis, sinsiensis and baemsagolensis - all Korean names by Hong & James, 2001, and Taiwanese monsoonus James et al., 2005. However, Chinese A. pingi (Stephenson 1925) (syn. fornicata Gates, 1935) is maintained separately, at least for the present, until its comprehensive review, possibly extending to DNA barcode differentiation.

• Journal of Species Research
• /
• 제9권4호
• /
• pp.375-376
• /
• 2020

A type specimen is the specimen originally used to name a new species; thus, it is one of the most significant materials for taxonomic study. In our study on the inventory and management of endemic species in Korea, we checked the type materials for Pseudolysimachion pusanensis (Y. Lee) Y. Lee, combination name Veronica pusanensis Y. Lee, recorded as deposited at the herbaria of the Ewha Womans University and the National Institute of Biological Resources, and failed to find any specimens. Thus, we concluded that all type specimens of V. pusanensis have since been misplaced. According to articles 9.11 and 9.13 of the International Code of Nomenclature for algae, fungi, and plants, it is necessary to select a neotype if the holotype is missing and no other original material exists. Therefore, we designate the neotype maintained in the herbarium of the National Institute of Biological Resources of the Republic of Korea.

• Mycobiology
• /
• 제34권1호
• /
• pp.1-6
• /
• 2006

A Cordyceps species was found with a Beauveria anamorph state on larval insect cadavers on Obong mountains in Gangwon Provinces, Republic of Korea. Cultures from discharged ascospores formed an anamorph identifiable as Beauveria bassiana. This teleomorph-anamorph connection was also confirmed by the in vitro production of fertile ascomata from conidial cultures with morphology like that of field-collected specimen. This is the first report of in vitro production of a teleomorph for any Beauveria species. The Cordyceps species has been conspecified as Cordyceps bassiana, a species described from China with B. bassiana anamorph.

• Journal of Species Research
• /
• 제1권2호
• /
• pp.133-150
• /
• 2012

Amynthas tralfamadore sp. nov. is described from the Mt Halla, Jeju Island biosphere exhibition housed at NIBR Incheon. This species' taxonomy is problematical since it is similar to Amynthas masatakae (Beddard, 1892) from Japan, itself previously reported from Korea and at one time associated with Amynthas campestris (Goto & Hatai, 1898) and A. parvicystis (Goto & Hatai, 1899), all three variously implicated in prior A. robustus (Perrier, 1872) along with Amynthas aspergillum (Perrier, 1872). Based on reinspection of the London lectotype of A. masatakae-here designated and sketched for the first time-the current solution is for maintenance of all five taxa separately. A closely-related Japanese species-Metaphire ryunome sp. nov.-is comparable to Korean Metaphire reisuiensis (Kobayashi, 1938) comb. nov. Another specimen was identified as Amynthas micronarius (Goto & Hatai, 1898), a new record for Korea. It matches the newly-designated neotype (Tokyo NMST An446) and an annotated synonymy is provided; however, erstwhile synonyms, Amynthas shimaensis (Goto & Hatai, 1899) and A. yamizoyamensis (Ohfuchi, 1935) combs. novae, are briefly redescribed and provisionally restored to the Japanese list. mtDNA COI-5P barcode analyses support species identifications.

• Animal cells and systems
• /
• 제10권2호
• /
• pp.49-64
• /
• 2006

Two spider species of the genus Asiacoelotes collected from various areas of South Korea are reviewed with spination on each leg, detailed illustrations including trichobothrium patterns and SEM photographs of male palpal organs and female epigynum. These two species, A. songminjae (Paik &Yaginuma, 1969) and A. insidiosus (L. Koch, 1878), have been confused in Korea and Japan because they were previously incompletely described. A. songminjae is redescribed from the neotype and is here synonymized with A. tropidosatus (Wang & Zhu, 1991). A. insidiosus is recorded for the first time in Korea.

• 한국미생물·생명공학회지
• /
• 제37권4호
• /
• pp.316-321
• /
• 2009

국내 토양으로부터 Chondromyces crocatus KYC2823을 순수 분리하고, 또 다른 5균주를 동반 세균이 함께 존재하는 상태로 분리하였다. 균주 KYC2823은 경북 청도군에서 채취한 토양시료에서 분리하였으며, 자실체 형태와 특이한 향의 발산을 포함한 여러 특성이 전형적인 C. crocatus임을 보였다. 이에 더해, 16S rDNA 염기서열이 C. crocatus의 새 표준균주로 제안된 Cm c5과 99.8% 유사하였다. 한편, PCR을 이용한 polyketide 생합성 유전자 조각의 클로닝 및 분석은 균주 KYC2823이 전자전달계 저해물질인 ajudazol과 actin cytoskeleton의 기능에 영향을 미치는 물질인 chondramide의 생합성 유전자, 그리고 아직까지 클로닝되지 않은 polyketide 계열 물질의 생합성 유전자를 가지고 있음을 보여주었다.

• ALGAE
• /
• 제39권3호
• /
• pp.129-147
• /
• 2024

The species complex Mesodinium rubrum / major, common red tide-forming ciliates, has been intensively studied with regards to its ecological roles in global marine ecosystems and the evolutionary aspects of its "stolen" organelles (kleptoplasty and karyoklepty). Nonetheless, the taxonomy of the species within the complex remains unclear. A new marine Mesodinium species isolated from Gomso Bay, Korea, was cultivated under mixotrophic conditions by providing Teleaulax amphioxeia, a red cryptomonad, as prey. Cells of the new isolate consisted of two portions separated by two types of polykinetids. The number of polykinetid associated with the equatorial ciliary belt was approximately 38, and each consisting of two rows of up to 18 alternating kinetosomes each. There was an equal number of cirral polykinetids, each consisting of 16 kinetosomes organized into four longitudinal rows having five, five, four, and two kinetosomes, respectively (in anti-clockwise direction). The two kinds of kinetids and their associated microtubules and fibers were structurally similar to those of M. rubrum from Denmark. However, the Korean Mesodinium species was characterized by its broad posterior portion, 20-22 tentacles, and a cytopharyngeal annulus. Molecular phylogeny based on internal transcribed spacer sequences placed the Korean isolate in clade B of the M. rubrum / major species complex, rather than in clade F representing the neotype of M. rubrum. Based on morphological, ultrastructural, and molecular data, we propose the Korean strain as a new marine Mesodinium species, M. annulatum.