| 赤子爱胜蚓再生过程中肌细胞超微结构变化的研究 |
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| 引用本文： | 齐莉萍,戈峰,甘雅玲,王蔚林.赤子爱胜蚓再生过程中肌细胞超微结构变化的研究[J].动物分类学报,2003,28(4):563-567. |
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| 作者姓名： | 齐莉萍 戈峰 甘雅玲 王蔚林 |
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| 作者单位： | 1. 中国科学院动物研究所,农业虫鼠害综合治理研究国家重点实验室,北京,100080
2. 首都师范大学生物系,北京,100085 |
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| 基金项目： | 国家自然科学基金国际合作项目 (96 92 0 1 3 0 3)，中国科学院创新工程方向性项目 (KSCX2 0 1 0 2 )资助 |
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| 摘 要： | 将赤子爱胜蚓在60／61体节处剪切，用透射电镜观察肌肉再生过程中的形态变化。结果表明：剪切后伤口处的受损细胞呈降解状态并被迁移至伤口面的吞噬细胞所吞噬；伤口处的其他未受损细胞去分化，失去特化细胞的特征，并且增殖形成圆锥状的芽基；芽基细胞再次进行分化，成肌细胞合成肌丝，最终生成新的肌肉组织。
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| 关 键 词： | 赤子爱胜蚓 再生 肌肉 超微结构 |
STUDIES ON ULTRASTRUCTURAL CHANGES OF MUSCLES DURING EARTHWORM REGENERATION ( EISENIA FETIDA ) (SAV.) |
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| QI Li-Ping,GE Feng,GAN Ya-Ling,WANG Wei-Ling .State key Lab of Integrated Management of Pest Insects & Rodents.STUDIES ON ULTRASTRUCTURAL CHANGES OF MUSCLES DURING EARTHWORM REGENERATION ( EISENIA FETIDA ) (SAV.)[J].Acta Zootaxonomica Sinica,2003,28(4):563-567. |
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| Authors: | QI Li-Ping GE Feng GAN Ya-Ling WANG Wei-Ling State key Lab of Integrated Management of Pest Insects & Rodents |
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| Institution: | QI Li-Ping1,GE Feng1,GAN Ya-Ling1,WANG Wei-Ling2 1.State key Lab of Integrated Management of Pest Insects & Rodents,Institute of Zoology,Chinese Academy of Sciences,Beijing 100080,China 2.Department of Biology,Capital Normal University,Beijing 100085,China |
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| Abstract: | Earthworms,Eisenia fetida,were surgically amputated between body segment 60 and 61.Morphological changes of their muscles during regeneration were studied by the electron microscope.The damaged muscles were found in the vicinity of the wound surface.And these cells showed degenerative changes in organelles.Most damaged cells were phagocytized by phagocytes mobilized to the wound area during this period.From 2 to 5 days following amputation,preexisting muscle cells revealed a lot of evidences of dedifferentiation.The blastemal cells proliferate to produce a conical mound of cells.These cells then redifferentiated.Synthesis of myofliaments took place in myoblast and new musculature was established after myofibrillogenesis within individual myofiber. |
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| Keywords: | Eisenia fetida regeneration muscle ultrastructure |
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