• 제목/요약/키워드: new specie

검색결과 17건 처리시간 0.023초

A New Species of the Genus Burmoniscus (Isopoda, Oniscidea, Philosciidae) from Ko Phuket, Thailand

  • Jeon, Dae-Soo;Kwon, Do-Heon
    • Animal Systematics, Evolution and Diversity
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    • 제25권2호
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    • pp.183-187
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    • 2009
  • A new species, Burmoniscus phuketensis, is described from Ko Phuket, Thailand. The new species belongs to the group characterized by male pereopods 1 and 2 with enlarged and flattened carpi, including B. coecus (Budde-Lund, 1895), B. ferrarai (Schumalfuss, 1983), B. mossambicus (Ferrara and Taiti, 1985), B. rowei Taiti and Manicastri, 1988, and B. rakataensis Green, Ferrara and Taiti, 1990. Among them, this new species resembles B. coecus and B. rakataensis in the pigmentless body and the shape of pereonite 7 epimeron with acute postero-lateral corner, but is easily distinguished from both specie by the shape of telson. While the eyes are absent in B. coecus, they are present in this new species.

개발나물속 1신종(미나리과), 세잎개발나물 (Sium ternifolium (Apiaceae), a new species from Korea)

  • 이병윤;고성철
    • 식물분류학회지
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    • 제39권3호
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    • pp.130-134
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    • 2009
  • 한국의 강원도 치악산의 산림에서 발견된 개발나물속 1 신종인 세잎개발나물 (Sium ternifolium B.Y. Lee & S.C. Ko)을 기재하고 도해하였다. 세잎개발나물은 긴 점첨두의 엽선, 연약한 3-6개의 소산경과 같은 공유 형질을 가지고 있어 일본에 자생하는 S. serra (Fr. & Sav.) Kitag.와 유사하나 키가 작고, 총포가 없으며 모든 잎이 3개로 갈라지는 특징에 의해 쉽게 구별된다.

First Report of Penicillium brasilianum and R. daleae Isolated from Soil in Korea

  • Cho, Hye-Sun;Hong, Seung-Beom;Go, Seung-Joo
    • Mycobiology
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    • 제33권2호
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    • pp.113-117
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    • 2005
  • In this study, a total of 300 isolates of Penicillium and related teleomorphic genera were collected from soils of 17 locations in Korea from April to May, 2004. Ninety four isolates were identified as the species of Penicillium subgenus Furcatum based on cultural and morphological characteristics and ${\beta}-tubulin$ gene sequences. Among the specie's, Korean isolates of P. brasilianum Bat. and P. daleae K. M. Zalessky were phylogenetically identical to the reference species based on DNA sequence of the ${\beta}-tubulin$ gene. Here we described and illustrated P. brasilianum and P. daleae that are new in Korea.

Systematic Study on Aspidochirotacea and Apodacea 9Echinodermata : Holothuroidea) in Korea

  • Park, Boon-Jo;Won, Jung-Hye
    • Animal Systematics, Evolution and Diversity
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    • 제11권3호
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    • pp.343-358
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    • 1995
  • 한국산 순수아강과 무족아강(해서강, 극피동물문)에 대한 분류 및 분포를 밝히기 위해 1962년부터 1995년까지 우리나라 삼면 연안과 도사지방의 48개 지역으로부터 채집된 재료들을 동정, 분류한 결과 3목 5과 8종에 속하는 해서류가 밝혀졌다. 그중 은족목에 속하는 4종: Molpaida oolitica, Paracaudina chilensis, Acaudina molpadioides 그리고 Caudina similis는 한국미기록종이었다..

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Comparison of Microbial Community Structure in Kiwifruit Pollens

  • Kim, Min-Jung;Jeon, Chang-Wook;Cho, Gyongjun;Kim, Da-Ran;Kwack, Yong-Bum;Kwak, Youn-Sig
    • The Plant Pathology Journal
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    • 제34권2호
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    • pp.143-149
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    • 2018
  • Flowers of kiwifruit are morphologically hermaphroditic and survivable binucleate pollen is produced by the male flowers. In this study, we investigated microbial diversity in kiwifruit pollens by analyzing amplicon sequences of 16S rRNA. Four pollen samples were collected: 'NZ' was imported from New Zealand, 'CN' from China in year of 2014, respectively. 'KR13' and 'KR14' were collected in 2013' and 2014' in South Korea. Most of the identified bacterial phyla in the four different pollens were Proteobacteria, Actinobacteria and Firmicutes. However, the imported and the domestic pollen samples showed different aspects of microbial community structures. The domestic pollens had more diverse in diversity than the imported samples. Among top 20 OTUs, Pseudomonas spp. was the most dominant specie. Interestingly, a bacterial pathogen of kiwifruit canker, Pseudomonas syringae pv. actinidiae was detected in 'NZ' by the specific PCR. This study provides insights microbial distribution and community structure information in kiwifruit pollen.

항칸다디아 활성이 우수한 bis acetylated hybrid pyrazoles의 합성 연구 (Novel Synthesis of bis Acetylated Hybrid Pyrazoles as Potent Anticandidiasis Agents)

  • Kanagarajan, V.;Ezhilarasi, M. R.;Gopalakrishnan, M.
    • 대한화학회지
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    • 제55권2호
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    • pp.256-261
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    • 2011
  • Bis acetylated hybrid pyrazoles 을 합성하여 이들 화합물에 대해 녹는점, 원소분석, MS, FT-IR, one-dimensional $^1H,-$$^{13}C$-NMR로 분석하였다. 합성한 화합물들에 대해 in vitro 항균활성을 Candida sp. namely Candida albicans, Candida glabrata, Candida parapsilosis, Candida dubliniensis 및 Candida tropicali 균에 대해 수행하였다. Pyrazoles의 페닐고리에 작용기($-CH_3$, $-OCH_3$, -F, -Cl, 및 Br)가 있는 화합물은 Candida species에 대해서 강한 활성을 나타내었다.

신규 살조물질인 Thiazolidinedione 유도체 (TD49)의 해양생태계에 대한 급성독성평가 (Acute Toxicity Assessment of New Algicides, Thiazolidinedione Derivative (TD49) to Marine Ecosystem)

  • 임은채;신준재;박인택;한효경;김시욱;조훈;김성준
    • KSBB Journal
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    • 제25권6호
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    • pp.527-532
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    • 2010
  • A thiazolidinedione derivative, TD49 with the highly selective algicide to red tide was newly synthesized and its acute toxicity was examined in order to evaluate the effect on aquatic ecosystems of coast. Major three species having important role in the food chain of marine ecosystem, such as Skeletonema costatum of microalgae, Daphnia magna of crustacea, Paralichthys olivaceus of flatfish fingerling were employed for the acute toxicity assessment. $EC_50$ or $LC_50$ as the assessment criterion was investigated to each specie, and NOEC (No Observed Effect Concentration) and PNEC (Predicted No Effect Concentration) from most sensitive specie to toxicity of TD49 were further calculated. $EC_50$ of S. costatum in 96-hour, $EC_50$ of D. magna in 48-hour, and $LC_50$ of P. olivaceus in 72-hour for TD49 were $0.34\;{\mu}M$, $0.68\;{\mu}M$, and $0.58\;{\mu}M$, respectively. NOEC from the results of S. costatum was estimated to be $0.20\;{\mu}M$ and PNEC was estimated as 3.40 nM by applying factor value of 100 to $EC_50$ $0.34\;{\mu}M$ of S. costatum. In addition, it was revealed that Solutol used as the dispersing agent of TD49 had very little toxic influence under the concentration range of $0{\sim}0.4\;{\mu}M$ used in TD49 toxicity experiment. Although the estimated concentration of TD49 that will be sprayed onto the coastal field for the algicide is higher than NOEC value, it is considered that the spraying concentration would not be a considerable problem due to a dilution effect by tide at the opened coast.

댐예정지를 중심으로 한 웅천천 수계의 어류군집에 관하여 (The Fish community of the Ungchon Stream Around the New Dam Intended Area)

  • 홍영표;장민호;강호;최신석
    • 환경생물
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    • 제17권1호
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    • pp.79-88
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    • 1999
  • 1994년부터 1996년도까지 계류성 독립하천인 웅천천 수계의 보령댐 수몰예정지역을 중심으로 하여 6개지점에서 어류상, 주목할만한 어종 및 어류군집에 대하여 조사하였다. 본 조사지역에서 94년에서 96년 사이에 채집을 통하여 서식이 확인된 종은 11과 25속으로 총 29종이었으며 이중 9종은 한국특산어종이었다. 이 중 멸종위기종인 감돌고기와 퉁사리, 특산어종인 꺽지는 본 지역에서 확인되지 않아 절멸된 것으로 생각된다. 우세어종은 갈겨니, 피라미, 긴몰개가 우세한 그룹의 어종으로 나타났다. 지점별 평균풍부도는 0.68개체/$m^2$, 평균체적밀도는 1.45개체/㎥로 나타났으며, 종의 다양도는 상류와 하류보다는 중류가 가장 높게 나타났다. 군집간 유사도는 1군집과 4군집, 5군집과 6군집이 유사하였으나 유의한 차이는 나타내지 않아 전체가 유사한 군집으로 나타났다.

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참쑥(Artemisia Lavandulaefolia DC)의 방향성분 (Flavor Components of Artemisia Lavandulaefolia DC)

  • 최경숙;최봉영;박형국;김정한;박종세;윤창노
    • 한국식품과학회지
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    • 제20권6호
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    • pp.774-779
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    • 1988
  • 참쑥(Artemisia lavandulaefolia DC)의 정유를 gas chromatogaphy/mass spectrometry(GC/MS)로 정성분석하고, 저장조건을 달리하여 정유성분의 변화를 살펴본 결과, 다음과 같은 결론을 얻었다. 1. 186 이상의 화합물이 검출되었으며, 그 중 1,8-cineol, camphor, ${\beta}-thujone$, caryophyllene, borneol, coumarin, linalool, terpineol, sabinene, 7-methoxy coumarin ${\alpha}-copaene$, humulene과phytol이 중요성분이었다. Artemisia species에서는 지금까지 밝혀진 바 없는 3,6,6-trimethyl norpinanol, ${\beta}-farnesene$, 7-methoxy coumarin, ${\alpha}-curcumene$ 등이 검출되었다. 2. 참쑥의 저장에 따른 색과 변화를 조사한 결과, 온도에 의해 갈색화와 성분의 증감이 있었다. 즉, 냉암소에 보관된 시료는 변화가 거의 없었으나, 상온방치한 시료는 Air와 질소에 상관없이 모두 변화가 있었다. 1,8-cineol, limonene, 2,2,4-trimethyl 1,3-dioxolane-4-ethanol, terpinene-4-ol 등은 감소하였으며, ${\beta}-phellandrene$, benzyl benzoate, broneol, ${\alpha}-terpineol$, humulene 등은 증가하였다.

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Identification of Non-Aggregatibacter actinomycetemcomitans Bacteria Grown on the Tryptic soy-Serum-Bacitracin-Vancomycin Medium

  • Jo, Eojin;Park, Soon-Nang;Kook, Joong-Ki
    • International Journal of Oral Biology
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    • 제41권4호
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    • pp.199-208
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    • 2016
  • The aim of this study was to identify the non-Aggregatibacter actinomycetemcomitans bacteria grown on the tryptic soy-serum-bacitracin-vancomycin (TSBV) medium, an A. actinomycetemcomitans selective medium. A total of 82 unidentified bacterial isolates from the oral cavities of a Korean population were kindly provide by the Korean Collection for Oral Microbiology. All the clinical isolates were grown on TSBV medium and bacterial DNA purified from each isolate was subjected to PCR with universal primers specific for bacterial 16S rRNA genes (16S rDNAs) sequence. The each bacterial 16S rDNA was amplified by PCR and the nucleotide sequences of it was determined by the dideoxynucleotide chain termination method. They were identified by 16S rDNA sequence comparison method at the specie-level. The data showed that Neisseria spp. (42 strains), Fusobacterium spp. (10 strains), Capnocytophaga spp. (8 strains), Propionibacterium acnes (5 strains), Aggregatibacter aprophilus (4 strains), Campylobacter spp. (5 strains), Veillonella dispar (3 strains), Streptococcus sp. (1 strain), Haemophilus parainfluenzae (1 strain), Leptotrichia wadei (1 strain), Morococcus sp./Neisseria sp. (1 strain), and Staphylococcus sp. (1 strain) were identified. These results could be used to develop a new A. actinomycetemcomitans-selective medium which is more effective than the TSBV medium in future studies.