• 제목/요약/키워드: sinensis

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가시고기(Pungitius sinensis sinensis)와 잔가시고기(P. sinensis kaibarae) 사이의 자연잡종(自然雜種) (Natural Hybrids between Pungitius sinensis sinensis and P. sinensis kaibarae)

  • 채병수;양홍준
    • 한국어류학회지
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    • 제2권1호
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    • pp.88-94
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    • 1990
  • 가시고기(Pungitius sinensis sinensis)와 잔가시고기(P. sinensis kaibarae)의 공서지역인 강릉시 지변저수지 하류의 소하천에서 이들 어류를 채집하여 조사한 결과 두 유형의 중간형으로 생각되는 개체가 발견되었다. 전기영동 결과 P. sinensis sineis와 P. sinensis kaibarae는 종전에 보고된 바와 같이 뚜렷이 구분되는 전기영동상을 나타내고 있었으나, 그 외에 이들 사이의 잡종으로 여겨지는 개체가 약 10%정도 발견되었고 또 이들은 가시고기형 잡종과 잔가시고기형 잡종으로 구분되 었다. 형태적인 면에서도 문장(吻長)과 미병고(尾炳高)는 잡종의 특정을 잘 나타내고 있었으며 정소의 색깔에도 P. sinensis sinensis는 회색, P. sinensis kaibarae는 검은색이었지만 잡종개체는 그중간의 색을 띄고 있었다. 이러한 잡종개체의 출현에 따른 이들 두 분류군의 생식적 격리문제에 대하여 논의하였다.

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농촌지역주민의 간흡충 감염실태 및 관련 요인에 관한 연구 (Current Status of Clonorchis Sinensis Infection & Its Related Factors among the Residents of Rural Communities)

  • 박도순
    • 한국농촌간호학회지
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    • 제2권1호
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    • pp.33-42
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    • 2007
  • Purpose: This study was done to determine the extent of Clonorchis sinensis infections as well as other parasitic infections and to determine the growth rate. Method: Analyzed test results were from 1,050 bowel samples taken at 3 public health subcenters located in Muju, North Jeolla Province during February and March 2007. Result: The results are summarized as follows; The egg positive rate by stool examination was 4.3%. Ascaris lumbricoides, Enterobius vermicularis, Clonorchis sinensis, Trichuris trichiura, Metagonimus, Paragonimus were detected. No one was infected with multiple parasites. Infection rate for Clonorchis sinensis was 3.5%. Statistical correlation to Clonorchis sinensis infection rate was as follows; Gender (p=0.001), Age (p=0.005), Proximity to a river (p<0.000), Drinking (p<0.000), Smoking (p=0.009), Cooking of freshwater fish (p<0.000), Confidence in subjective health status (p=0.032), Family history of infection (p=0.005), No significant correlation was found between Clonorchis sinensis infection rate and duration of stay (p=0.809) in the agricultural communities or between Clonorchis sinensis infection and knowledge of Clonorchis sinensis (p=0.113). Conclusion: The results of this survey show that there is a need to develop a program to test the condition of Clonorchis Sinensis infection and its growth rate in residents of rural communities.

관악산의 잔디와 억새 생태계에 있어서 에너지 흐름과 무기물의 순환 11.알루미늄의 순환 (The Energy Flow and Mineral Cycles in a Zoysia japonica and a Miscanthus sinensis Ecosystem on Mt. Kwanak 11. The Cycles of Al)

  • 심규철;장남기
    • 아시안잔디학회지
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    • 제11권4호
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    • pp.303-309
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    • 1997
  • The investigation was cycle of aluminum of surface soil elements in dynamic grassland ecosystems at a steady state in a Zoysia japonica and a Miscanthus sinensis ecosystem in Mt. Kwanak, Korea. Average amounts of total storage for aluminum in Z japonica and M. sinensis grasslands were 8,426mg /$m^2$ and 7,849mg /$m^2$ respectively. Decay constants estimated on the base of experimental and mathematical model, were 0.04 in Z japonica grassland, and 0.08 in M. sinensis grassland. Half time to decay aluminum of litter soils were 17.33 years in Z japonica grass-land, and 8.66 years in Al. sinensis grassland. 95% decay times in Z japonica, and in M. sinensis grassland were 75.0 years and 35.0 years respectively. Needed times to lose almost all of elements in Z japonica and M. sinensis grassland were 125.0 years, and 62.50 years respectively. The metals were losed more rapidly in M. sinensis than in Z japonica grassland. The cycle of aluminum was investigated to be related with soil acidity. Key words: Cycle of aluminum, Zoysia japonica. Miscanthus sinensis, Mt. Kwanak, Decay constants, Soil acidity.

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억새초지의 현존량과 토양의 형태적 특성에 관한 연구 (Studies on the Relationship between Standing Crop of Miscanthus sinensis Grassland and Soil Morphological Characteristics)

  • 박봉규
    • Journal of Plant Biology
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    • 제21권1_4호
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    • pp.7-12
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    • 1978
  • The results of the relationship between standing crop of Miscanthus sinensis grassland and soil morphological characteristics are as follows. The Miscanthus sinensis grassland seems to grow well in volcainc ash soil. The depth of A layer was closely related to the standing crop of the Miscanthus sinensis grassland. The root systems of Miscanthus sinensis reached to its maximum in A layer. The root systems of Miscanthus sinensis showed its maximum at 20mm and below(soil hardness). The soil texture of A layer showed SL-SiL. The soil structure of A layer contained Massive-Small Granular. The soil colors of A layer expressed Dark Yellowish Orange-Brownish Black.

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급협(皀莢)과 급각자(皀角刺)의 기원에 대한 연구 (A study on the source of FRUTUS GLEDITSIAE and SPINA GLEDITSIAE)

  • 김인락
    • 대한본초학회지
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    • 제21권1호
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    • pp.43-49
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    • 2006
  • Objectives : The purpose of this study is to determine new source of FRUTUS GLEDITSIAE and SPINA GLEDITSIAE. Methods : We observed the morphological features of fruit, spine, seed, and measured the length, weight of fruit, and removed from the bark and seed. Results : 1. The fruit of Gleditsia sinensis is almost straight. 2. The fruit of G. sinensis is 13-19cm long. 3. The fruit of G. sinensis is 11-22g. 4. The seed of G. sinensis is irregularly spherodical or compressed spherodical. 5. The fruit of G. sinensis can be removed from the bark and seed. Conclusion : The fruit of Gleditsia sinensis is the origin of FRUTUS GLEDITSIAE, and the spine of G. sinensis is the origin of SPINA GLEDITSIAE.

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관악산의 잔디와 억새 생태계에 있어서 에너지 흐름과 무기물의 순환 10.구리의 순환 (The Energy Flow and Mineral Cycles in a Zoysia japonica and a Miscanthus sinensis Ecosystem on Mt. Kwanak 10. The Cycles of Cu)

  • 심규철;여성희;장남기
    • 아시안잔디학회지
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    • 제11권4호
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    • pp.295-301
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    • 1997
  • The cycle of heavy metal, copper, was investigated in dynamic grassland ecosystems at a steady state in a Zoysia japonica and a Miscanthus sinensis ecosystem in Mt Kwanak, Korea. Total average storage amounts in Z. japonica and M sinensis grasslands were copper 23.92mg /$m^2$ and 51.82mg /$m^2$ respectively. Estimates of decay constants for based on experimental and mathematical model, were 0.18 in Z. japonica grassland, and 0.30 in M sinensis grassland. Decay half time of copper were 3.85 years in Z. japonica grassland and 2.31 years in A'. sinensis grassland. 95% decay times of initial copper amounts in Z. japonica and A'. sinensis were 16.68 and 9.99 years. Needed times to decay almost all of elements in Z. japonica and M sinensis grassland were 27.80 years and 16.65 years respectively. The copper was losed more rapidly in M. sinensis than in Z. japonica grassland.

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Effect of Gleditsia sinensis Lam. Extract on Physico-Chemical Properties of Emulsion-Type Pork Sausages

  • Jin, Sang-Keun;Yang, Han-Sul;Choi, Jung-Seok
    • 한국축산식품학회지
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    • 제37권2호
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    • pp.274-287
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    • 2017
  • This study was performed to investigate the effect of Gleditsia sinensis Lam. extract on the physicochemical properties of emulsion-type pork sausages during storage at $10^{\circ}C$ for 4 wk. Treatments were as follows: (C, control; T1, sodium ascorbate 0.05%; T2, Gleditsia sinensis Lam. 0.05%; T3, Gleditsia sinensis Lam. 0.1%; T4, Gleditsia sinensis Lam. 0.2%; T5, Gleditsia sinensis Lam. 0.1% + sodium ascorbate 0.05%). The values of pH, moisture content, lightness, redness, and sensory attributes were all significantly decreased, while the yellowness, chroma, hue angle, and texture properties were increased during storage with increase of the Gleditsia sinensis Lam. extract added. In addition, the antioxidant activity and antimicrobial activity in the sausages displayed significant increases (p<0.05). Therefore, although it was concluded that the addition of Gleditsia sinensis Lam. extract is not effective for improvement of the physical properties compared to chemical additives in sausages, it could be applied to meat products as a natural preservatives.

Clonorchis sinensis, an oriental liver fluke, as a human biological agent of cholangiocarcinoma: a brief review

  • Kim, Tong-Soo;Pak, Jhang Ho;Kim, Jong-Bo;Bahk, Young Yil
    • BMB Reports
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    • 제49권11호
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    • pp.590-597
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    • 2016
  • Parasitic diseases remain an unarguable public health problem worldwide. Liver fluke Clonorchis sinensis is a high risk pathogenic parasitic helminth which is endemic predominantly in Asian countries, including Korea, China, Taiwan, Vietnam, and the far eastern parts of Russia, and is still actively transmitted. According to the earlier $8^{th}$ National Survey on the Prevalence of Intestinal Parasitic Infections in 2012, C. sinensis was revealed as the parasite with highest prevalence of 1.86% in general population among all parasite species surveyed in Korea. This fluke is now classified under one of the definite Group 1 human biological agents (carcinogens) by International Agency of Research on Cancer (IARC) along with two other parasites, Opisthorchis viverrini and Schistosoma haematobium. C. sinensis infestation is mainly linked to liver and biliary disorders, especially cholangiocarcinoma (CCA). For the purposes of this mini-review, we will only focus on C. sinensis and review pathogenesis and carcinogenesis of clonorchiasis, disease condition by C. sinensis infestation, and association between C. sinensis infestation and CCA. In this presentation, we briefly consider the current scientific status for progression of CCA by heavy C. sinensis infestation from the food-borne trematode and development of CCA.

잡종 3배체 어류 기름종개 - 왕종개 잡종군의 종간 교잡실험 (Interspecific Hybridization between Triploid Hybrid Fish, Cobitis sinensis - longicorpus and Two Diploid Species from Korea)

  • 김익수;이은희
    • 한국어류학회지
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    • 제7권1호
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    • pp.71-78
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    • 1995
  • 낙동강 상류의 여러 수계에서 거의 암컷으로 구성된 Cobitis sinensis - longicorpus complex 2배체와 3배체 집단이 높은 빈도로 출현하였다. 그 가운데, 수컷의 C. sinensis (2n=48) 및 C. longicorpus (2n=50)와 암컷 3배체 C. sinensis - longicorpus (3n=73)를 실험실내에서 인공 교잡 실험을 하였다. 그 결과 각 조합에서 얻은 자손의 체측 반문에는 부계 형질이 발현되었고 그들의 염색체는 모두 부계의 haploid genome이 포함된 diploid form (2n=48,49)이었다. 이상의 결과로 볼때 3배체 암컷인 Cobitis sinensis - longicorpus complex는 제 1 감수분열에서 uneven genome을 배제하고 제 2감수분열에 의한 반수체 ovum을 형성하는 독특한 생식 양상을 갖는 것으로 사료된다.

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당귀(Angelica sinensis)의 임상활용에 대한 효능 및 부작용연구 (Pharmacological action and Toxicity of Angelica sinensis)

  • 박영철;이지선;김민희;김동윤;이선동
    • 대한한의학방제학회지
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    • 제19권2호
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    • pp.93-108
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    • 2011
  • Objectives : Angelica sinensis has been used extensively in Korean traditional medicine. Although thorough clinical trials are lacking, Various pharmacological actions for Angelica sinensis has been identified newly using animal models. In addition, it was reported that reactive intermediates, potentially causing toxic effects, was isolated from components in Angelica sinensis. In this article, it was purposed for explanation and introduction of new studies for Angelica sinensis. in terms of Pharmacological action and Toxicity. Methods : New studies for Angelica sinensis were reviewed and summarized in terms of pharmacological action and toxicity. Results and Conclusions : Angelica sinensis and its components including phthalide, phthalide dimers, polysaccharides, polyacetylenes, ligustilide와 butylidenephthalide as well as organic acid showed a variety of pharmacological actions on uterine, cardiovascular system and immune system. In addition, it was identified that three components of such as ligustilide, caffeic acid and safrole was biotransformed to reactive intermediates causing possibly toxicity.