CAJ | 학술논문

用透射电镜观察了扩张莫尼茨绦虫(Moniezia expansa)卵黄细胞发育的全过程.扩张莫尼茨绦虫卵黄细胞发育的规律为:(1)细胞体积不断增大;(2)质、核比不断增加而核体积几乎不发生改变,核表面从规则变为不规则,再由不规则变为规则,核内出现染色质浓缩成小块再分散的发育变化过程;(3)线粒体逐渐增多,发育不断完善;(4)粗面内质网及高尔基复合体出现由少到多,发育不断完善,再由多到少不断退化的变化;(5)由高尔基复合体组装的电子致密的小卵黄囊不断融合,至卵黄细胞成熟时仅有一卵黄囊,占据细胞大部分体积
용투사전경관찰료확장막니자조충(Moniezia expansa)란황세포발육적전과정.확장막니자조충란황세포발육적규률위:(1)세포체적불단증대;(2)질、핵비불단증가이핵체적궤호불발생개변,핵표면종규칙변위불규칙,재유불규칙변위규칙,핵내출현염색질농축성소괴재분산적발육변화과정;(3)선립체축점증다,발육불단완선;(4)조면내질망급고이기복합체출현유소도다,발육불단완선,재유다도소불단퇴화적변화;(5)유고이기복합체조장적전자치밀적소란황낭불단융합,지란황세포성숙시부유일란황낭,점거세포대부분체적
Transmission electron microscopic observations have been made on vitellogenesis in the cestode, Moniezia expansa. Four continuous developmental stages were evident: (1) an immature gonial stage prior to differentiation; (2) an early stage of differentiation; (3) an advanced stage of differentiation; and (4) the mature vitellocyte. Mature vitelline follicles consist of cells in various stages of development, distributed irregularly. Maturation of the vitellocyte is completed before the cell leaves the follicle. The process of maturation is characterized by: (1) a gradual increase in cytoplasm/nucleus ratio and cell volume; (2) the presence of large numbers of mitochondria; (3) the appearance of granular endoplasmic reticulum and associated Golgi apparatus; (4) the production at the Golgi of small electron-dense vitelline vesicles that fuse and eventually amalgamate into one large vitelline vesicle, filling most of the cell volume.