• 미생물학회지
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• 제8권3호
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• pp.95-102
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• 1970

From the crops Drosophila collected in Mt. Sokni and Mt.Kyeryong, 7 strains were isolated and then 6 species of wild yeast were identified. 1) Of these six species of wild yeasts two were to be of genus Saccharomyces(Ascosporgenous), two Torulopsis and two Trichosporon (both genuses of Asporogenous). 2) It was found that the fermentation of the wild yeasts isolated from Drosophila was much better than that of any others ; in particular, S. florentinus and S. cerevisiae were good in fermenting maltose. 3) After being cultivated in malt extract agar medium at $25^{\circ}C$ for 3 days, the vegetative cells were found to be big but Torulopsis cells small. 4) It was also observed that the species of yeasts used fro food by Drosophila largely depends on genus and species of Drophila. 5) Of the yeasts isolated from the Drosophila, Trichosporon capitatum and Torulopsis dattila, which has not previously been recorded, were identified. 6) It is believed, therfore, that S.florentinus, powerful in fermenting maltose, will be extremely useful in terms of industrial application.

• Current Research on Agriculture and Life Sciences
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• 제32권4호
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• pp.189-198
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• 2014

The planthopper subfamily Achilinae (Metcalf, 1938) from Korea is taxonomically revised. Six genera and seven species are recorded among Korean fauna. Among them, one genus, Phenelia Kirkaldy, and two species, Phenelia striatella (Matsumura, 1914) and Deferunda qiana Chen and He (2010) are new to Korea. The male genital structures of all these species are described and illustrated, plus an identification key to the tribe, genus, and species is provided.

• 한국동물학회지
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• 제16권3호
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• pp.171-176
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• 1973

空氣乾燥法을 이용하여 B. kangii Yoon의 骨髓細胞에서 分裂像을 얻었다. 本種의 核型에 관한 특징은 다음과 같다. (1) 本種의 2倍體數는 22로서 큰 染色體 6쌍과 작은 染色體 5쌍으로 구분할 수 있다. (2) 모든 相同染色體는 metacentric 이었다. (3) 染色體에 第 2 收縮環이 없다. (4) 특이한 性染色體를 찾아볼 수 없었다.

• Animal Systematics, Evolution and Diversity
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• 제33권2호
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• pp.100-111
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• 2017

The species of the genus Athalia Leach from South Korea are reviewed. Six species are listed, one of which is a new record from South Korea (Athalia tanaoserrula Chu and Wang). In South Korean Athalia, we were not able to find any specimens of A. kashmirensis Benson, while many specimens identified as such were a misidentifications of A. tanaoserrula. Therefore, we think that A. kashmirensis should be excluded from the faunal list of South Korea. A key to the species of South Korean Athalia, diagnosis, photographs of the diagnostic characters, distribution and recorded hosts for each species are also provided.

• 환경생물
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• 제39권3호
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• pp.289-292
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• 2021

Henricia specimen was collected from the East Sea of Korea using fishing nets. The specimen was identified as Henricia hayashii (Djakonov 1961), belonging to the family Echinasteridae of the order Spinulosida. This species can be distinguished from other Henricia species by slender arms (R/r=7.4), constricted arm base, six to thirty-five slender spinelets, open-meshed, reticulated abactinal skeleton comprising semi-triangular, rod-like form, and small ossicles present inside the papular areas. This species superficially resembles H. reniossa in terms of its body size but differs in the shape and arrangement of the abactinal and actinal plates. To date, two genera of Echinasteridae, Aleutihenricia and Henricia, including a total of 14 species, have been reported in Korea. Herein, the morphological characteristics of H. hayashii are described, and photographs are provided.

• 환경생물
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• 제37권1호
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• pp.1-7
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• 2019

During a recent study to understand an interaction of Collembola community and their environmental factors, two species in the genus Folsomia, F. quadrioculata Tullberg 1871 and F. octoculata Handschin 1925, were found in the forest of South Korea. From 2013 to 2015, these two species were sampled from six mountains and F. quadrioculata or F. octoculata was the dominant species in 5 sampling sites among 6 sampling sites. F. quadriocualta and F. octoculata were found in litter of deciduous and pine forest, respectively. Therefore, the major tree species seems to be one of the important factors determining their habitat. F. quadiroculata is newly recorded from the Korean Peninsula and F. octoculata is redescribed based on new materials from South Korea.

• Journal of Species Research
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• 제11권3호
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• pp.174-179
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• 2022

In this study, we identified two marine synchaetid rotifers, Synchaeta grimpei Remane, 1929 and S. vorax Rousselet, 1902, in Korea, which are the first synchaetid rotifers collected from a marine environment in the country. Prior to this study, all six synchaetids recorded in Korea were collected from freshwater environments. The morphological characteristics of both species are consistent with those recorded in previous studies of each species. Synchaeta grimpei is distinguished from other synchaetid rotifers by its cone-shaped body, wide and flat apical field, indistinct auricles, and long foot with two separated small toes. The morphological characteristics of Korean S. vorax specimens were most similar to the original description of Rousselet (1902), with its slender and cylindrical trunk shape, strongly convex apical field, and short foot with two small, separated toes. The rami of the Korean S. vorax specimen contained one frontal hook and several distinct and large teeth. Here, we provide the morphological diagnoses of the two synchaetid rotifers and the sequences of the partial mitochondrial cytochrome c oxidase subunit I (COI) of the two species.

• Mycobiology
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• 제51권5호
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• pp.320-332
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• 2023

Talaromyces is a genus within the phylum Ascomycota (class Eurotiomycetes, order Eurotiales, family Trichocomaceae). Many species in this genus are known to produce diverse secondary metabolites with great potential for agricultural, medical, and pharmaceutical applications. During a survey on fungal diversity in the genus Talaromyces in Korea, six strains were isolated from soil, indoor air, and freshwater environments. Based on morphological, physiological, and multi-locus (ITS, BenA, CaM, and RPB2) phylogenetic analyses, we identified five previously unrecorded species in Korea (T. brevis, T. fusiformis, T. muroii, T. ruber, and T. soli) and a new species (T. echinulatus sp. nov.) belonging to section Talaromyces. Herein, detailed descriptions, illustrations, and phylogenetic tree are provided.

• Animal Systematics, Evolution and Diversity
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• 제5권1호
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• pp.77-88
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• 1989

한국산 살모사속 (Agkistrodom) 2종의 유전적, 형태적 및 종간잡종 형성 유.무를 구명하기 위하여 남한의 7개 지역에서 147개체를 채집하여 전기영동 및 형태형질 분석을 실시한 결과는 다음과 같다. 1. 15개의 성소 및 단백질에서 19개의 유전자를 검출하여 유전적 변이를 조사한 바 5개 유전자(26.3%)는 종간 및 집단간에 전혀 차이가 없었고 나머지 14개의 유전자중 4개 유전자는 매우 높은 률의 유전적 변이를 나타내었다. 2. 각 집단의 유전적 변이정도를 산출한 결과 A. b. brevicaudus는 평균 A= 1.55, P=42.1%, HD=0.096 및 HG=0.1l5였고 A .ussuriensis는 A= 1.45, P=31.6%, HD=0.1l7 및 HG=0.122로서 타 파충류에 비하여 높은 유전적 변이를 나타냈으며 이는 이들 종의 집단이 크고 안정된 상태에 있다고 사료된다. 3. 형태적으로 2종의 중간형으로 여겨졌던 제주집단은 강릉집단의 A .ussuriensis와 동일종으로 확인되었으며 종간 잡종은 전혀 찾아볼 수 없었다. 4. 2종간의 유전적 근록치는 S=0.662로서 이들은 약 180만년전에 분화되었으리라 추산된다.

• Journal of Forest and Environmental Science
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• 제15권1호
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• pp.1-9
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• 1999

천연활엽수림에서 자생하는 활엽수종 고유의 생장 특성을 감안하여, 18개 주요 상층 임관 구성 수종을 대상으로 임목 형질을 평가하는 한 방편으로서 임목(林木) 형질(形質) 지수(指數)(tree form index: TFI)를 추정하였다. 선정된 6개의 형질 속성을 4개의 급수로 나누고, 임목 개체의 전반적인 형질에 미치는 영향력을 고려하여 합당한 점수를 부여하였다. 18개 수종에 대하여 속성 별로 점수를 부여하고 백분률(百分率)로 환산한 후, 각 점수를 합하여 임목 형질 지수를 산출하였다. 각 쌍의 수종별 점수 차이와 $18{\times}6$ 행렬(行列)을 바탕으로 집락분석(集落分析)(cluster analysis) 을 시도하여 수종별로 어떠한 속성들이 공통적인가를 검토하였다. 연구 결과, 임목 형질이 가장 좋은 수종은 TFI 수치 80.8을 기록한 사시나무로 파악되었고, TFI 수치 46.3을 기록한 까치박달나무는 임목 형질이 가장 좋지 않은 수종으로 분석되었다. 70점 이상의 비교적 높은 지수를 획득한 상층 임관 수종들은 사시나무, 거제수나무, 들메나무, 느릅나무 등으로서, 통직하고 완만한 수간, 높은 지하고(枝下高), 좁은 수관(樹冠), 가는 가지 등의 특성을 갖는 장점을 지니고 있었다. 반면에, 60점 미만의 낮은 지수를 얻은 수종들은 팔배나무, 산벚나무, 복장나무, 가래나무, 까치박달나무 등으로서, 굽었거나 기울어진 수간, 낮은 지하고(枝下高), 넓은 수관, 굵은 가지 등의 성격을 갖는 경향이 있었다. 집락분석 결과에 의한 분류도(分類圖)에서 Euclidean 거리계수(距離係數) 임의의 값 10은 연구 대상 수종들을 4개의 뚜렷한 수종군(樹種群)으로 분류하였고, 각 수종군에 대한 임목 형질 특성을 검토하였다.