Fine structure of the development of Sarcocystis singaporensis in Python reticulatus from macrogamont to sporulated oocyst stage

Three, 4-month old reticulated pythons (Python reticulatus) hatched from eggs laid by a newly caught female from Singapore Island, were fed on muscles of Sarcocystis singaporensis infected Rattus rattus caught in Singapore. Snakes were sacrificed five, six and eight days later. The infected tissues...

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Main Authors: Paperna I., Martelli P.
Format: Article
Language:English
Published: EDP Sciences 2000-09-01
Series:Parasite
Subjects:
Online Access:http://dx.doi.org/10.1051/parasite/2000073193
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author Paperna I.
Martelli P.
author_facet Paperna I.
Martelli P.
author_sort Paperna I.
collection DOAJ
description Three, 4-month old reticulated pythons (Python reticulatus) hatched from eggs laid by a newly caught female from Singapore Island, were fed on muscles of Sarcocystis singaporensis infected Rattus rattus caught in Singapore. Snakes were sacrificed five, six and eight days later. The infected tissues were studied by transmission electron microscope. The present communication summarizes findings on macrogamont and oocyst stages. In the premature stages, rough endoplasmic reticulum consolidate into a large rectangular array; the electron-dense wall-forming-like bodies reveal a laminar structure. Macrogamont parasitophorous vacuoles became filled with granular matrix and electron-dense strands, which later on consolidate into a coat around the fertilized zygote. The oocyst wall is constructed from several formed membranes combined with deposited substance. All development to the sporulated oocyst stage occurs in the mucosal epithelium.
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spelling doaj.art-99bb989473f247d09c15beb30c5137b62023-11-02T01:32:13ZengEDP SciencesParasite1252-607X1776-10422000-09-017319320010.1051/parasite/2000073193parasite2000073p193Fine structure of the development of Sarcocystis singaporensis in Python reticulatus from macrogamont to sporulated oocyst stagePaperna I.Martelli P.Three, 4-month old reticulated pythons (Python reticulatus) hatched from eggs laid by a newly caught female from Singapore Island, were fed on muscles of Sarcocystis singaporensis infected Rattus rattus caught in Singapore. Snakes were sacrificed five, six and eight days later. The infected tissues were studied by transmission electron microscope. The present communication summarizes findings on macrogamont and oocyst stages. In the premature stages, rough endoplasmic reticulum consolidate into a large rectangular array; the electron-dense wall-forming-like bodies reveal a laminar structure. Macrogamont parasitophorous vacuoles became filled with granular matrix and electron-dense strands, which later on consolidate into a coat around the fertilized zygote. The oocyst wall is constructed from several formed membranes combined with deposited substance. All development to the sporulated oocyst stage occurs in the mucosal epithelium.http://dx.doi.org/10.1051/parasite/2000073193Sarcocystis singaporensisPython reticulatusmacrogamontsoocystsultrastructure
spellingShingle Paperna I.
Martelli P.
Fine structure of the development of Sarcocystis singaporensis in Python reticulatus from macrogamont to sporulated oocyst stage
Parasite
Sarcocystis singaporensis
Python reticulatus
macrogamonts
oocysts
ultrastructure
title Fine structure of the development of Sarcocystis singaporensis in Python reticulatus from macrogamont to sporulated oocyst stage
title_full Fine structure of the development of Sarcocystis singaporensis in Python reticulatus from macrogamont to sporulated oocyst stage
title_fullStr Fine structure of the development of Sarcocystis singaporensis in Python reticulatus from macrogamont to sporulated oocyst stage
title_full_unstemmed Fine structure of the development of Sarcocystis singaporensis in Python reticulatus from macrogamont to sporulated oocyst stage
title_short Fine structure of the development of Sarcocystis singaporensis in Python reticulatus from macrogamont to sporulated oocyst stage
title_sort fine structure of the development of sarcocystis singaporensis in python reticulatus from macrogamont to sporulated oocyst stage
topic Sarcocystis singaporensis
Python reticulatus
macrogamonts
oocysts
ultrastructure
url http://dx.doi.org/10.1051/parasite/2000073193
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