• 한국균학회지
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• 제46권1호
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• pp.9-21
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• 2018

Seven unrecorded species in the phylum Ascomycota, Emericellopsis pallida (KNU16-167), Scedosporium aurantiacum (KNU16-190), Duddingtonia flagrans (KNU16-279), Bionectria rossmaniae (KNU16-309), Exophiala xenobiotica (KNU16-79), Pseudocercosporella fraxini (KNU16-102), and Stachybotrys sansevieriae (KNU16-141), were isolated in 2016 from field soils collected from various locations in Korea. All of the species were identified and described based on morphological characteristics and rDNA internal transcribed spacer sequence data. Morphological features of these fungi were examined on potato dextrose agar, oatmeal agar, malt extract agar, Czapek yeast extract agar, and yeast extract sucrose agar. Full descriptions and illustrations of their morphological characteristics are provided.

• 한국어류학회지
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• 제34권4호
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• pp.231-243
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• 2022

한강 지류인 달천에서 발견된 한국산 납자루과 1미기재종 Acheilognathus sp. HR의 분류학적 위치를 알아보기 위하여 분자계통학적 및 형태학적 특성을 선행 연구와 비교 분석하였다. 분자계통학적 분석 결과에서 A. sp. HR은 Acheilognathus tabira의 5개 아종과 동일한 유전적 clade를 형성하면서도 고유한 유전자형을 기반으로 별도의 단계통군을 형성하여 A. tabira의 5개 아종과도 분명한 차이를 보였다. 또한, 형태학적 분석 결과에서 A. sp. HR은 수컷의 등지느러미와 뒷지느러미 외연부는 볼록하게 둥글고, 각각 회색과 흰색을 띠는 점, 치어의 등지느러미 상에는 흑색 반점이 존재하나 암컷 성어의 등지느러미 상에는 흑색 반점이 존재하지 않는 점, 등지느러미 분기 연조 수가 12~13개로 그 범위가 중복되지 않을 정도로 많은 점, 입수염 길이가 짧고, 체고가 높은 점 등에서 A. tabira를 구성하는 5개 아종과 잘 구분되었다. 따라서, A. sp. HR은 A. tabira의 5개 아종과 분자계 통학적, 형태학적 및 제한적 분포 특성에 의하여 서로 구별되는 별도의 종 수준에 있다고 판단된다.

• The Korean Journal of Ecology
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• 제6권4호
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• pp.10-20
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• 1983

Morphological and ecological comparions are made between specimens of Cobitis koreensis KIM and the geographically restricted population of the Cobitid fish which is found along the Begchon stream, Puangun, Cholla-bugdo province over a 12-month period of 1982 and 1983. The Begchon population is tentatively identified as Cobitis koreensis, but the color patterns and two morphometric proportions differ widely fromthose reported previously for this species. In addition to these character, it is easily distinguished from C. koreensis by the smaller body size, by having the larger egg size and the less egg number in female during the breeding season. As the differentiation of this population is primarily due to geographically isolation, it is supposed that Begchon cobitid population may be an undescribed distinct subspecies of K. koreensis or above the conventional subspecies level.

• BMB Reports
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• 제40권2호
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• pp.286-289
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• 2007

Despite considerable interest in the biologic processes of regeneration and stem cell activation, little is known about the genes involved in these transformative events. In a Hydra littoralis model of regeneration, we employed a rapid shotgun suppression subtractive hybridization strategy to identify genes that are uniquely expressed in regenerating tissue. With an adaptor-PCR based technique, 16 candidate transcripts were identified, 15 were confirmed unique to mRNA isolated from hydra undergoing regeneration. Of these, 6 were undescribed in GenBank and allied expressed sequence tag (EST) databases (GenBank + EMBL + DDBJ + PDB and the Hydra EST database). BLAST analysis of these sequences identified remarkably similar sequences in anonymous ESTs found in a wide variety of animal species.

• Parasites, Hosts and Diseases
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• 제37권1호
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• pp.1-4
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• 1999

Fecal samples from 12 Pipistrellus kuhlii captured at Shagrah, Saudi Arabia, were examined for coccidia and three (25%) found to harbor a undescribed eimerian, herein described as Eimeria pipistrellus n. sp. Sporulated oocysts were sub spherical. $24.8{\times}23.2{\;}(22-27{\times}20-25){\;}\mu\textrm{m}$, with a bilayered and smooth wall. The micropyle was absent, but a large oocyst residuum and a single polar granule were present. Sporocysts were ovoid, 11.6{\times}8.3 (10.5-13{\times}7.5-9) Jim, with a prominent Stieda body, but without a substiedal body; sporozoites lay head to tail in sporocysts and contained one large posterior refractile body. Eimeria pipistrellus n. sp. is the 3rd species of the genus Eimeria found from bats of the genus Pipistrellus.

• 한국동물학회지
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• 제20권3호
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• pp.135-149
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• 1977

Kim and Park(1972)이 1969年 8月 15日 濟州島 西歸浦에서 採集된 게1♀를 Actumnus asper(Ruppell)로 同定하고 한국명을 콩알부채게라하여 記載하였고, Kim(1973)이 그의 著書에서 이것을 다시 記載하였던 것을 精密히 再檢한 결과 新種임을 確認하고 이것을 完模式으로 하여 Actumnus marissinicus라 命名하여 記載한다. 이것은 甲殼의 앞 半部가 현저하게 볼록하고 얕고 넓은 홈들로서 나뉘어져 있다. 염통구역은 거의 완전하며 중앙에 뚜렷하지 않는 세로홈이 있다. 뒷옆 가장자리 근처는 오목하게 들어갔다. 집게 다리와 甲殼은 곧게 선 센 강모로 덮혀 있다.

• Mycobiology
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• 제47권1호
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• pp.31-39
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• 2019

Three fungal isolates designated as CNUFC-YR329-1, CNUFC-PTS103-1, and CNUFC-PTS2-1 were discovered during a survey of fungal diversity of the order Mortierellales from freshwater and pine tree rhizosphere soil samples in Korea. The strains were analyzed morphologically and phylogenetically based on the internal transcribed spacer (ITS) and large subunit (LSU) of ribosomal DNA gene sequences. Based on their morphology and phylogeny, the three isolates were identified as Mortierella elongata, M. horticola, and M. humilis, respectively. To the best of our knowledge, M. elongata, M. horticola, and M. humilis, belonging to an undiscovered taxon, have not been previously described in Korea.

• ALGAE
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• 제29권4호
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• pp.279-288
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• 2014

Red algal parasites are common within red algae and are mostly closely related to their hosts, but have a reduced habit. In the past, red algal parasites, due to their reduced morphology, have been given distinct generic names, even though they are often phylogenetically nested in their host's genus. This is a problem nomenclaturally for maintenance of a taxonomy based on monophyly. This study investigates the morphology, genetic variation and distribution of an undescribed red algal parasite growing on its host Rhodophyllis membranacea, widely distributed throughout New Zealand. Microscopy, molecular markers (plastid, mitochondrial, nuclear), and herbarium investigation were used to investigate this species. The parasite is widely distributed throughout New Zealand. All molecular markers clearly show that the parasite is almost identical to the host, even though morphologically quite distinct from members of the host genus. We believe that to maintain monophyly of Rhodophyllis the parasite should be described as a new species of Rhodophyllis, Rhodophyllis parasitica sp. nov. We also recommend that in order to maintain generic monophyly most red algal parasite genera should also be transferred to their host genus.

• Mycobiology
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• 제45권4호
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• pp.344-352
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• 2017

During a survey of fungal diversity of the order Mucorales, three zygomycete isolates, CNUFC-YR113-1, CNUFC-KNU16-7, and CNUFC-BS1-1 were isolated from freshwater and soil samples in Korea. The strains were analyzed both morphologically and phylogenetically based on internal transcribed spacer and 28S rDNA gene sequences. Based on their morphology and phylogeny, the CNUFC-YR113-1 and CNUFC-KNU16-7 isolates were identified as Actinomucor elegans, and CNUFC-BS1-1 was identified as Mucor minutus. To the best of our knowledge, the species A. elegans and M. minutus, belonging to an undiscovered taxon, have not been previously described in Korea.

• Mycobiology
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• 제51권6호
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• pp.417-435
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• 2023

Eurotiales is a relatively large order of Ascomycetes, well-known for their ability to produce secondary metabolites with potential beneficial applications. To understand their diversity and distribution, different environmental sources including soil, freshwater, insect, and indoor air were investigated. Eight strains of Eurotiales were isolated and identified based on their morphological characters and a multi-gene phylogenetic analysis of the ITS, BenA, CaM, and RPB2 regions. We identified eight taxa that were previously not reported from Korea: Aspergillus baeticus, A. griseoaurantiacus, A. spinulosporus, Penicillium anthracinoglaciei, P. labradorum, P. nalgiovense, Talaromyces atroroseus, and T. georgiensis. Detailed descriptions, illustrations, and phylogenetic tree for the eight new records species are presented, and information regarding the records is also discussed.