• 제목/요약/키워드: Trematoda

검색결과 75건 처리시간 0.026초

한국산 피라미 장에 기생하는 흡충류 Neoplagioporus zacconis (Trematoda Opecoelidae) (Neoplagioporus zncconis (Trematoda: Opecoelidae) from the intestine of the pale chub, Zocco platypus, in Korea)

  • 김기홍;조재범;임한종
    • Parasites, Hosts and Diseases
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    • 제36권3호
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    • pp.199-202
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    • 1998
  • 피라미 (Zacco platypus)의 장으로부터 흡충류에 속하는 Neoplagioporus zacconis (Yamaguti, 1934) 1종을 한국에서는 처음으로 발견하여 기재하였다. 본 연구에서 발견된 충체는 난소의 형태를 제외한 다른 형태학적 특징들은 기존에 기재되어 있는 특징들과 잘 일치하였다. 난소 형태의 차이는 지리학적 표현형의 변이로 여겨졌다. Neoplagioporus속에 대한 속명을 신편평흡충속으로 제안한다.

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자루이형흡충(Stictodora fuscatum)의 표면 미세구조 (Surface Ultrastructures of Stictodora fuscatum (Trematoda: Heterophyidae))

  • 손운목
    • Applied Microscopy
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    • 제30권2호
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    • pp.205-212
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    • 2000
  • Present study was performed to observe the surface ultrastructures of Stictadora furcatum (Trematoda: Heterophyidae). Adult worms were recovered from the cat experimentally infected with metacercariae, and were prepared for scanning electron microscopy. The body was leaf-like and ventrally concave. The oral sucker armed with prominent tegumental spines on the inner surface, and it's lips were obscure. Sensory papillae (type I) in single or grouped forms symmetrically arranged around the oral sucker. The ventrogenital opening retained protruding gonotyl spines and sperms discharged from the genital pore . The body surface was covered with scale-like multipointed tegumental spines. The density and digitated point of spines were gradually decreased toward the posterior end of the body. The digitated points of spines on the anterior portion were 9-12, on the middle were 7-8 and 5-6, and on the posterior were 2-3 and peg-like. Although the tegumental ultrastructure of S. fuscatum was generally similar to those of other heterophyid flukes , the oral sucker with tegumental spines on the inner surface and without obvious lips, and the ventrogenital opening with protruding gonotyl spines were suggested to be the characteristic features.

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명태의 혈관에서 발견한 Aporocotyle theragrae (Trematoda : Aporocotylidae) (Apoyocotuze theragrae(Trematoda: Aporocotylidae) from the blood vessel of Theragra chalcogramma)

  • 주종필;주정균
    • Parasites, Hosts and Diseases
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    • 제30권4호
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    • pp.255-258
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    • 1992
  • 1985년 5월에 서을 이문시장에서 구입한 명태 (Theragra chalcogramma)의 내장 혈관에서 성숙한 2마리의 흡충을 발견하였다. 충체는 홉반과 인두가 없었으며 체표면에 분포하는 가시가 부채꼴 모양의 군을 형성하고 고환의 수가 약 110개인 점, 장이 H자 모양이며, 충난에 난개가 없는 점 등의 형태학적 특징과 문헌적 고찰을 토대로 긴목종ocotyle theragrae로 동정하고 국내 미기록종임을 확인하였다.

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Studies on cercariae from the Kuwait Bay. VI. Description and surface topography of Cercaria kuwaitae VI sp. n. (Trematoda: Haplosplanchnidae)

  • Jasem ABDUL-SALAM;Bhaskaran Nair Saralamma SREELATHA
    • Parasites, Hosts and Diseases
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    • 제33권3호
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    • pp.147-154
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    • 1995
  • A new haplosplanchnid cercaria, Cercaria kuwaitae VI sp. n., was found in the prosobranch snail Cerithidea cincingulata in the Kuwait Bay Details are presented on the morphology and behavior of the cercaria and the encystment process. The new cercaria is a biocellate, distome, with a prominent single sac-like intestinal cecum extending well posterior to the ventral sucker and develops in simple sporocysts. It differs from known haplosplanchnid cercariae in the absence of finger-like processes on the tail, and the presence of V-shaped excretory vesicle extending beyond ventral sucker and the presence of cervical glands. The surface topography of the cercaria and its sporocyst is examined by scanning electron microscopy. This is the first haplosplanchnid cercaria to be described from a Cerithidea species.

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Stictodoyu sp. (Trematoda; Heterophyidae)의 인체기생 1례 (Stictodora sp. (Trematoda: Heterophyidae) Recovered from a Man in Korea)

  • 채종일;홍성종
    • Parasites, Hosts and Diseases
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    • 제26권2호
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    • pp.127-132
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    • 1988
  • 이형흡충류의 하나인 Stictodora속 흡충 2마리가 구충제 및 하제를 투여한 24세 남자환자의 설 사변에서 검출되었다. 총체는 길이 0.90∼0.98 mm, 폭 0.38 mm로 소형이며 특이한 복흡반-생식만(ventrogenital) 장치가 있고 생식공과 별개인 gonotyl(12∼15개의 미소한 갈고리 보유)을 가지고 있었다. 충체는 형태학적으로 Stictodora fuscatum(Onji and Nishio, 1916)과 매우 비슷하였으나 다수의 충체를 획득할 때까지 확정적인 종 동정은 보류하였다. 환자는 숭어, 농어 등 반염수산 어류를 즐겨 생식한다고 하였다. 이들이 Stirtodora sp.는 물론 따로 보고한 3종류 이형홉충의 감염원이었을 것으로 추측된다. 이 중례는 문헌상 Stictodora속 홉충의 최초 인체기생례에 해당된다.

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Intestinal Parasites among Wild Rodents in Northern Gangwon-do, Korea

  • Lee, Young-Il;Pyeon, Hee-Jang;Seo, Min
    • Parasites, Hosts and Diseases
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    • 제51권5호
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    • pp.603-606
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    • 2013
  • To determine geographical patterns of natural parasite infections among wild rodents, a total of 46 wild rodents from 3 different localities in northern Gangwon-do (Province), Korea were examined for intestinal parasite infections. Along with nematodes such as hookworms and Syphacia spp., Plagiorchis muris (2 specimens) (Trematoda) were collected from striped field mice, Apodemus agrarius. In a Korean wood mouse, Apodemus peninsulae, the overall nematode infections were similar to A. agrarius, but an adult worm of Echinostoma hortense (Trematoda) was collected. In addition, 2 species of cestodes, i.e., Hymenolepis nana and Hymenolepis diminuta, were collected from A. agrarius. Through this survey, A. agrarius and A. peninsule were confirmed as the natural definite hosts for zoonotic intestinal helminths, i.e., P. muris, E. hortense, H. nana, and H. diminuta, in northern Gangwon-do, Korea. Considering increased leisure activities around these areas, seasonal and further comprehensive surveys on wild rodents seem to be needed to prevent zoonotic parasite infections.

Surface ultrastructure of the adult stage of Acanthotrema felis (Trematoda: Heterophyidae)

  • Sohn, Woon-Mok;Seo, Min;Chai, Jong-Yil
    • Parasites, Hosts and Diseases
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    • 제41권2호
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    • pp.107-111
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    • 2003
  • The surface ultrastructure of Acanthotrema felis (Trematoda: Heterophyidae) adults, recovered from a kitten experimentally infected with the metacercariae, was observed using a scanning electron microscope. The worm was leaf-like, ventrally concave and covered with scale-like multi-pointed tegumental spines. The spines on the anterior surface were short but broad, and had 10-12 pointed tips. The cytoplasmic processes protruded around the spines, like pockets for the spines. The ventrogenital opening was crescent, or kidney-shaped, and had protuberances with minute spines on its surrounding tegument. The spines on the posterior surface were long, but narrow, with 6-8 pointed tips. The cytoplasmic processes on this tegument were ridge-like, and elevated along the row of the spines. The surface ultrastructure of A. felis is generally similar to that of other heterophyid flukes, but some features are characteristic, and may be of taxonomic and bio-ecological significance.