Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If You Use a Screen Reader

This content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.

Identification of New Morphological and Life-Cycle Stages of Cochlosoma anatis and Experimental Transmission Using Pseudocyst

Nicholas P. Evans, Robert D. Evans, Steve Fitz-Coy, F. William Pierson, John L. Robertson and David S. Lindsay
Avian Diseases
Vol. 50, No. 1 (Mar., 2006), pp. 22-27
Stable URL: http://www.jstor.org/stable/4099124
Page Count: 6
  • Read Online (Free)
  • Download ($12.00)
  • Subscribe ($19.50)
  • Cite this Item
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Identification of New Morphological and Life-Cycle Stages of Cochlosoma anatis and Experimental Transmission Using Pseudocyst
Preview not available

Abstract

Cochlosoma anatis is a flagellated intestinal parasite that infects a variety of avian species. C. anatis infections have been associated with decreased weight gain and increased morbidity and mortality. Conditions favoring the growth of this organism in birds are current pathogenic intestinal infections and/or young age. There is little data describing the life cycle of this parasite. In this study, electron microscopy images are presented that document longitudinal binary fission of the trophozoite stage and outline the events of pseudocyst formation, which includes a rounding stage. Evidence provided here indicates that the pseudocyst stage may be a mechanism for transmission of this organism. The observations reported here provide additional evidence of homology between Cochlosoma and members of the trichomonad order. /// El Cochlosoma anatis es un parásito intestinal flagelado que infecta una gran variedad de especies aviares. Las infecciones con C. anatis han sido asociadas con una disminución de la ganancia de peso y con un incremento en la morbilidad y mortalidad. Las condiciones que favorecen el crecimiento de este organismo en las aves son las infecciones con patógenos intestinales, la edad temprana, o ambas. Existe muy poca información sobre el ciclo de vida de este parásito. En el presente estudio, se presentan imágenes de microscopía electrónica que documentan la fisión binaria del estadío de trofozoito y reseñan los eventos de la formación del pseudoquiste, los cuales incluyen un estadío de enquistamiento. La evidencia mostrada indica que el estadio de pseudoquiste puede ser un mecanismo para la transmisión del organismo. Las observaciones aquí reportadas proporcionan evidencia adicional de la homología entre el Cochlosoma y otros miembros del orden tricomonas.

Page Thumbnails

  • Thumbnail: Page 
22
    22
  • Thumbnail: Page 
23
    23
  • Thumbnail: Page 
24
    24
  • Thumbnail: Page 
25
    25
  • Thumbnail: Page 
26
    26
  • Thumbnail: Page 
27
    27