• 한국토양동물학회지
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• 제5권2호
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• pp.71-83
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• 2000

포식선충목(Mononchida)의 4신종 및 1 미기록종을 기재하였다. Mylonchulus jinjuensis n. sp.는 체장이 1.8-2.2 mm, 교접자는 58-$67{\mu}{m}$ 이며, 아복부 치는 기부에있고, 진피선과 복부체공이 있는 것이 특징이다. Mylonchulus taeguensis n. sp.는 체장이 1.3-1.8 mm, 교접자는 52-$64{\mu}textrm{m}$이며, 배부치 정점선의 구공 배부벽에 추가적인 작은 치를 가지며, 음문 전후방에 각각 2개의 돌기가 있다. Mylonchulus polynicus는 한국 미기록종으로 보고되며, Princhulus pachydermis n. sp.는 체장이 2-2.3 mm이며, 체벽이 두껍고, 미선과 미선공이 없다. Prionchulus koriensis n. sp.는 체장이 1.7-2.0 mm이며 끝이 뾰쪽하고 신장된 원추형의 꼬리와 미선공이 있는 것이 특징이다.

• Journal of Microbiology
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• 제43권2호
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• pp.213-218
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• 2005

Epilepsy constitutes a significant public health problem, and even the newest drugs and neurosurgical techniques have proven unable to cure the disease. In order to select a group of isolates which could generate an active compound with neuroprotective or antiepileptic properties, we isolated 517 actinomycete strains from soil samples taken from Jeju Island, in South Korea. We then screened these strains for possible anti-apoptotic effects against serum deprivation-induced hippocampal cell death, using the 3-(4, 5-dimethylthiazol-2-yl)2,5-diphenyl-tetrazolium bromide (MTT) assay as an in vitro test. The excitotoxic glutamate analog, kainic acid (KA), was used to induce seizures in experimental mice in our in vivo tests. As a result of this testing, we located one strain which exhibited profound neuroprotective activity. This strain was identified as a Streptomyces species, and exhibited the rifampinresistant genotype, Asn$(AAC)^$442, according to the results of 16S rRNA and rpoB gene analyses

• 한국토양동물학회지
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• 제10권1_2호
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• pp.16-21
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• 2005

2002년 9월부터 2003년 12월까지 경남 진주시 경상대학교 인근의 야산, 초지, 하천변, 온실, 건물옥상, 논 및 채소밭에서 닭과 소의 사체를 매장하거나 노출 설치하여 유인되는 진드기류를 채집하였으며 동정 한 결과 다음과 같이 7종을 확인하였다. Suborder Ixodida 참진드기 아목 Family Ixodidae 참진드기 과 1. Haemaphysalis longicornis Neumann, 1901 작은소참진드기 Suborder Mesostigmata 중기문 아목 Family Machrochelidae 큰집게좀진드기 과 2. Macrocheies muscaedolnesticae(Scopoli, 1772) 파리큰집게좀진드기 3. Holostaspella ornata(Berlese, 1904) 무늬파리응애(국명 신칭) Family Ascidae 떠돌이응애 과 4. Protogamasellus micus(Athias-Henriot, 1961) 미카응애(국명 신칭) 5. Lasioseius sugawarai Ehara,1964 화살응애 6. Proctolaelaps sp. Suboder Prostigamta 전기문 아목 Family Erythraeidae 7. Abrolophus sp. 그 중 가장 흔한 것은 파리큰집게좀진드기(31.8%)와 미카응애 (28.2%)이었고, Holostaspella ornata (Berlese 1904)와 Protogamasellus micus(Athias-Henriot 1961)는 한국 미기록종이다.

• Journal of Microbiology and Biotechnology
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• 제17권5호
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• pp.705-711
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• 2007

Two novel strains of the Cytophaga-Flexibacter-Bacteroides(CFB) group, designated Gsoil $219^T$ and Gsoil $238^T$, were isolated from soil of a ginseng field of Pocheon Province in Korea. Both strains were Gram-negative, aerobic, nonmotile, nonspore-forming, and rod-shaped. Phylogenetic analysis based on 16S rRNA gene sequences indicated that both isolates belong to the genus Chitinophaga but were clearly separated from established species of this genus. The sequence similarities between strain Gsoil $219^T$ and type strains of the established species and between strain Gsoil $238^T$ and type strains of the established species ranged from 91.4 to 94.7% and 91.6 to 94.2%, respectively. Phenotypic and chemotaxonomic data(major menaquinone, MK-7; major fatty acids, $iso-C_{15:0}\;and\;C_{16:1}\omega5c$; major hydroxy fatty acid, $iso-C_{17:0}3-OH$; major polyamine, homospermidine) supported the affiliation of both strains Gsoil $219^T$ and Gsoil $238^T$ to the genus Chitinophaga. Furthermore, the results of physiological and biochemical tests allowed genotypic and phenotypic differentiation of both strains from the other validated Chitinophaga species. Therefore, the two isolates represent two novel species, for which the name Chitinophaga soli sp. nov.(type strain, Gsoil $219^T=KCTC\;12650^T=DSM\;18093^T$) and Chitinophaga terrae sp. nov.(type strain, Gsoil $238^T=KCTC\;12651^T=DSM\;18078^T$) are proposed.

• 한국토양동물학회지
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• 제7권1_2호
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• pp.7-16
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• 2002

2002년 4월부터 9월까지 남한의 8개 지역으로부터 다음 과 같은 8종의 구멍응애를 채집, 사육하여 측정하고 북한의 자료와 비교하였다. 가시구멍응애 Echinozercon orientalis Blaszak, 1975 대양궝응애 Eurozercon pacificus Halaskova, 1979 가슴구멍응애 Kaikiozercon mamillosus Halaskova, 1979 청계구멍응애 Kaikiozercon peregrinus Halaskova, 1979 진주구멍응애 Koreozercon bacatus Halaskova, 1979 고구려구멍응애 Mesozercon coreanus Blaszak, 1975 솜털구멍응애 Mesozercon plumatus (Aoki, 1966) 민구멍응애 Zercon szeptyckii Blaszak, 1976 그 중 2종(대양구멍응애, 민구멍응애)은 북한의 것과 같고, 3종(가시구멍응애, 진주구멍응애, 고구려구멍응애)은 크기가 작으며 경미한 변이를 보이고 나머지 3종(가슴구멍응애, 청계구멍응애, 솜털구멍응애)은 크기가 작고 현저한 변이를 보였다 변이가 가장 심한 강모는 전배판의 아측열모 r3-r6과 후배판 강모의 대부분이다. 북한의 표본보다 강모의 길이가 짧으나 솜털구멍응애는 강모의 길이가 북한의 것보다 길었다. 그러나 종 내의 변이로 여겨진다.

• Mycobiology
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• 제49권5호
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• pp.469-475
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• 2021

Three strains, YP416^T, YP421^T, and Y422, were isolated from soil samples in Pocheon City, Gyeonggi province, South Korea. The strains belong to two novel yeast species in the genus Mrakia. Molecular phylogenetic analysis showed that the strain YP416^T was closely related to Mrakia niccombsii. Still, it differed by 9 nucleotide substitutions with no gap (1.51%) in the D1/D2 domain of the LSU rRNA gene and 14 nucleotide substitutions with 7 gaps (2.36%) in the ITS region. The strain YP421^T differed from the type strain of the most closely related species, Mrakia aquatica, by 5 nucleotide substitutions with no gap (0.81%) in the D1/D2 domain of the LSU rRNA gene and 9 nucleotide substitutions with one gap (1.43%) in the ITS region. The names Mrakia terrae sp. nov. and Mrakia soli sp. nov. are proposed, with type strains YP416^T (KCTC 27886^T) and YP421^T (KCTC 27890^T), respectively. MycoBank numbers of the strains YP416^T and YP421^T are MB 836844 and MB 836847, respectively.

• 식물분류학회지
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• 제37권4호
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• pp.363-386
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• 2007

Endemic element of the Russian Far East (RFE) flora includes 497 species of 150 genera and 46 families. The level of endemism in structure of regional natural flora reaches 11.1% as a whole, and in structure of its native fraction - 13.1%. As a result of chorologic and ecocenotic analysis of RFE flora endemic element it is revealed that it consists of 8 main geographical groups and 7 main floristic complexes. The largest number of endemic species is concentrated in Arctic - Alpine & Montane (140, 28.2%), Forest (107, 21.5%) and Maritime (88, 17.7%) floristic complexes as well as in Russian Far East - West-Pacific (136, 27.4%), Japan Sea (88, 17.7%) and North-East-Asian - Beringian (69, 13.9%) geographical groups. It's possible to distinguish three main areas with similar eco-geographical differentiation of endemics on RFE as follows: (1) North-East Asia sector of RFE which North-East-Asian - Beringian and Maritime Okhotia - Beringian geographical groups approximately correspond to, (2) Continental part of East Asia sector of RFE (West - Okhotian, Amur - Okhotian, Amur - Ussirian, Okhotsk Sea and Japan Sea groups) and (3) Oceanic part of East Asia sector (Russian Far East - West Pacific group). Taxonomical variety of RFE endemics on these territories makes up accordingly (1) - 99 species (19.9%), (2) - 259 (52.8%) and (3) - 136 (27.4%).

• Journal of Species Research
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• 제1권1호
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• pp.78-86
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• 2012

Three ciliate species of genus Cyrtohymena, C. australis Foissner, 1995, C. citrina (Berger & Foissner, 1987) and C. muscorum (Kahl, 1932) new to Korea, were collected from semi-terrestrial habitats. The description was based on the observation of live and silver stained specimens. Diagnostic characteristics of these species are as follows. C. autralis: size about $275{\times}100{\mu}m$ in live specimens. Cortical granules yellowish. 18-31 right and 31-40 left marginal cirri in number. Dorsal kineties eight rows. C. citrina: size about $180{\times}50{\mu}m$ in live specimens. Cortical granules yellowish. 26-32 right and 23-27 left marginal cirri in number. Dorsal kineties five to six rows. C. muscorum: size about $180{\times}60{\mu}m$ in live specimens. Cortical granules reddish. 31-34 right and 33-36 left marginal cirri in number. Dorsal kineties six rows. Three species of Cyrtohymena have been added to Korean ciliate fauna from this study. Including previous one species of C. quadrinucleata, four species of this genus in total have been recorded so far in this country.

• 한국미생물·생명공학회지
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• 제22권5호
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• pp.447-452
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• 1994

The strain SL-387 which produces new inhibitors of aminopeptidase M, MR-387A and B, was isolated from a soil sample. The strain has branched substrate mycelia, from which aerial hyphae develop in the form of open spirals. Spore surface is smooth. Melanoid and soluble pigme- nts were observed. The isolate contains LL-diaminopimelic acid in its cell wall hydrolysate, and has no pectinolytic activity. The strain SL-387 is closely related to Streptomyces griseoruber and S. naganishii, but is different from these strains in some cultural and physiological characteristics. This strain was, therefore, designated as Streptomyces sp. SL-387. The effects of several carbon and nitrogen sources on the production of the inhibitor were examined. Among them, glucose, galactose, mannose, and xylose were effective as a carbon source and soybean meal, soytone, fish meal, and gluten meal were effective as a nitrogen source. The maximum peak of the inhibitor production in jar fermentor was obtained on the fifth day of culture.

• 한국식품과학회지
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• 제5권4호
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• pp.197-200
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• 1973

1. 양조폐수장, 폐수구에서 분리한 K-73-3은 초산염을 자화하여 L-G, A를 20g/l 생산하였다. 2. 분리된 균주는 형태학적, 생리학적, 분류학적, 배양학적인 특성으로 보아 Corynebacterium glutamicusnov sp.로 간주된다.