Light and scanning electron microscopical examination of the third stage larva of Physocephalus dromedarii (Nematoda: Spirocercidae)—an abomasal nematode of the one humped camel (Camelus dromedarius<

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• 作者：Rolf K. Schuster ; Gudrun Wibbelt ; Saritha Sivakumar ; J. Reiczigel
• 关键词：Camel ; Physocephalus dromedarii ; Life cycle ; Intermediate hosts ; Scarabaeus cristatus ; Aphodius spp. ; Paratenic hosts ; Reptiles
• 刊名：Parasitology Research
• 出版年：2015
• 出版时间：May 2015
• 年：2015
• 卷：114
• 期：5
• 页码：1913-1920
• 全文大小：1,148 KB
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• 作者单位：Rolf K. Schuster (1)
  Gudrun Wibbelt (2)
  Saritha Sivakumar (1)
  J. Reiczigel (3)
  
  1. Central Veterinary Research Laboratory, PO Box 597, Dubai, United Arab Emirates
  2. Leibniz Institute for Zoo and Wildlife Research, A. Kowalke Str. 17, 10315, Berlin, Germany
  3. Szent István University, Budapest, István u. 2, 1078, Hungary
  
• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Biomedicine
  Medical Microbiology
  Microbiology
  Immunology
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1432-1955

文摘

The life cycle of Physocephalus dromedarii was studied under experimental conditions. Larvae obtained from naturally infected Scarabaeus cristatus and Aphodius sp. (Coleoptera: Scarabaeidae) were measured and examined in light and scanning electron microscopy and used to infect a dromedary as final host as well as chicken, mice and a toad as possible paratenic hosts. Larvae with the same morphology and similar measurements were found in naturally infected reptiles (Trapelus flavimaculatus, Eryx jayakari, Cerastes gasperettii). Body length of examined larvae varied between 1450 and 1700?μm. Dorsal, ventral and lateral lips, peg-like papillae and amphideal pits are located on the cephalic cone. There are two asymmetrical cervical deirids, long simple lateral wings and a knob-like posterior end covered with minute spines. In the camel, patency is reached within 12?weeks after infection while larvae in paratenic hosts migrate into the wall of the alimentary tract and become dormant.