QUANTITATIVE ULTRASTRUCTURAL INVESTIGATIONS OF LIFE-CYCLE OF TRYPANOSOMA-BRUCEI - MORPHOMETRIC ANALYSIS
QUANTITATIVE ULTRASTRUCTURAL INVESTIGATIONS OF LIFE-CYCLE OF TRYPANOSOMA-BRUCEI - MORPHOMETRIC ANALYSIS
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DOI：
10.1111/j.1550-7408.1975.tb05210.x
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发表时间：
1975-01-01
期刊：
影响因子：
--
通讯作者：
HECKER, H
中科院分区：
文献类型：
--
作者：
BOHRINGER, S;HECKER, H
本文用形态计量学方法对布氏锥虫在其媒介--外围食型、腺胃型、上鞭毛体和唾液腺中的后环型的值与先前发表的血流型的结果进行了比较。在整个生命周期中，线粒体内、外膜的体积密度和线粒体内、外膜的表面密度均显著增加。转移到昆虫宿主后，观察到的dupion;减少发生在代谢周期的发展。平行的生物发生的微体的减少被发现在腺室的形式，并有一个很大的增加，在metacyclic形式伴随着退化的微体。代谢形式有密切的定量形态学相似的血流形式。结果进行了讨论，在结构和氧化代谢的变化。
The quantitative ultrastructure of the developmental stages ofTrypanosoma brucei bruceiin its vectorGlossina morsitanswas studied by morphometric analysis. Values from ectoperitrophic midgut forms, proventricular forms, epimastigote and metacyclic forms in the salivary gland are compared with results from bloodstream forms, published previously.Significant differences in the volume densities of the trypanosome's single mitochondrion, of microbody‐like organelles and in the surface densities of inner and outer mitochondrial membranes were found throughout the whole life cycle.A great increase in volume density of the mitochondrion was observed after transfer to the insect host; reduction took place during metacyclic development. Parallel to the biogenesis of the mitochondrion a reduction of microbodies was found in proventricular forms and there was a great increase in metacyclic forms concomitant with the regression of the mitochondrion. Metacyclic forms had a close quantitative morphologic similarity to bloodstream forms.The results are discussed in connection with changes in structure and in oxidative metabolism.