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一种发光蚯蚓——磷微蠕蚓(Microscolex phosphoreus)体腔细胞的超微结构
Ultrastructure of a luminous earthworm Microscolex phosphoreus coelomocytes
【摘要】 应用光学显微镜、扫描电镜和透射电镜对磷微蠕蚓(Microscolex phosphoreus)的体腔细胞进行观察,基于各种细胞的形态特征、胞质内细胞器和颗粒组成、伪足形状及行为特征等将其归纳为三类:黄色细胞、阿米巴样细胞、粒细胞。从外观上看,黄色细胞由几个个体较大的黄色细胞体组成,其细胞质内缺少细胞器;阿米巴样细胞呈明显球形或椭圆形的花朵状,经常可见几个至十几个细胞形成聚合体,胞质内细胞器丰富;粒细胞胞质的颗粒是其主要特征,其星状伪足常处于细胞一端,细胞质内细胞器含量比较丰富。本文将磷微蠕蚓的三类细胞与其它种蚯蚓中相关体腔细胞的形态和超微结构进行了异同比较。
【Abstract】 Coelomocytes of the oligochaeta Microscolex phosphoreus were observed by light microscope,scanning electron microscope and transmission electron microscope.Based on morphology,organelles and granules composition,pseudopodia shape,as well as behavioural traits,three main cell types were distinguished in the coelomic fluid:chloragogen cells,amoebocytes and granulocytes.Endoplasm of chloragogen cells is a lack of organelles.The chloragogen cells were composed of several larger chloragosomes in appearance.The amoebocytes were look like a round or oval flower in appearance.The amoebocytes were the most numerous cells in the coelomic fluid of microscolex phosphoreus.Amoebocytes often form aggregations of a few to about a dozen cells.The cytoplasm contain numerous cytoplasmic organelles.Stellate pseudopodia,granules and empty vacuoles were distinguishing features in granulocytes.Stellate pseudopodia usually concentrate at one pole of the cell.Morphology and ultrastructure of Microscolex phosphoreus coelomocytes were presented on microgarphs:similarities and differences were compared to related coelomocytes of other species.
【Key words】 luminous earthworm; Microscolex phosphoreus; coelomocyte; ultrastructure;
- 【文献出处】 电子显微学报 ,Journal of Chinese Electron Microscopy Society , 编辑部邮箱 ,2008年02期
- 【分类号】Q952
- 【被引频次】1
- 【下载频次】133