MICROPYLE AND OOCYST WALL CHANGES ASSOCIATED WITH CHEMICALLY MEDIATED INVITRO EXCYSTATION OF EIMERIA-STIEDAI AND EIMERIA-TENELLA

被引：5

作者：

JOLLEY, WR

ALLEN, JV

NYBERG, PA

机构：

[1] BRIGHAM YOUNG UNIV,DEPT BOT,PROVO,UT 84602

[2] BRIGHAM YOUNG UNIV,DEPT ZOOL,PROVO,UT 84602

来源：

INTERNATIONAL JOURNAL FOR PARASITOLOGY | 1979年 / 9卷 / 03期

基金：

美国国家科学基金会;

关键词：

Eimeria stiedai; Eimeria tenella; excystation; micropyle; oocyst; ultrastructure;

D O I：

10.1016/0020-7519(79)90029-8

中图分类号：

R38 [医学寄生虫学]; Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ; 100103 ;

摘要：

Scanning and transmission EM techniques revealed wall structural features and changes associated with chemically mediated alteration of oocyst walls (phase 1) in the process of excysting in vitro the sporozoites of Eimeria stiedai and Eimeria tenella. SEM showed the excystation sequence to be (a) sinking of the micropyle, (b) wall rupture, mainly around the micropylar lid, but sometimes radiating down the outer wall from the micropyle and (c) infolding or inrolling of the lid. Freeze-fracture and thin section preparations showed crosssection and surface features of walls and intra-oocyst components. Oocysts were incubated in CO2 and cysteine hydrochloride before microscopic examination. © 1979.

引用

页码：199 / 204

页数：6