扬子鳄外周血细胞的超微结构
ULTRASTRUCTURE OF PERIPHERAL BLOOD CELL OF ALLIGATOR SINENSIS
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摘要: 对扬子鳄血细胞亚显微结构进行透射电镜观察。结果表明;在外周血细胞中可区分出红细胞、嗜中性粒细胞、嗜酸性粒细胞、嗜碱性粒细胞、单核细胞、淋巴细胞以及血栓细胞。电镜图像显示:与其它爬行动物相比,各类血细胞体积较小并具有不同程度的变形运动及吞噬能力。红细胞的特征是长梭形,其长短径之比值超过3.0。在外周血液中发现了多种未成熟型血细胞;进入外周血液中的红细胞普遍已分化到一定程度,但有的仍须在外周血液中完成其最后的发育;单核细胞在外周血液中经历了从幼单核细胞到成熟单核细胞的过程,并描述了从未成熟到成熟阶段细胞的超微结构的变化;嗜中性粒细胞在外周血液中经历了从早幼粒细胞、中幼粒细胞,晚幼粒细胞到成熟粒细胞的过程,描述了嗜中性粒细胞各个发育阶段细胞的超微结构及特征,并讨论了嗜天青粒细胞和嗜中性粒细胞的关系。Abstract: The ultrastructure of peripheral blood cells of Alligator sinensis was studied by using transmission electron microscopy. The results showed that the peripheral blood consists of the following cell types: erythrocytes, neutrophil, eosinophil, basophil, monocytes, lymphocyte and thrombocyte. Electron micrographs revealed that the volume of all kinds of blood cells are smaller than those of other reptiles species and all kinds of cells are capable of amoeboid movement and phagocytosis in different extent. The feature of erythrocytes is in the shape of long shuttle and the ratio of its longer diameter to shorter diameter is over 3.0. There are several immature blood cells in the peripheral blood. It has been discovered that the erythrocytes in the peripheral blood had generally developed in certain extent, but some hadn′t finished that last development. The process of the development from immature cell to mature cell of monocytes has been discovered in the peripheral blood, and the changes of the cell′s ultrastuture from infantile type to mature type are described. The various neutrophils are in early infantile type, middle immature type, later immature type and mature type. The ultrastucture and character of neutrophil during every growth period have been described. The relation between azurophilic granule cell and neutrophil has been discussed also.
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Keywords:
- Alligator sinensis /
- Blood cells /
- Ultrastructure
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