文章摘要
赵维信.克氏原螯虾大颚器的超微结构研究[J].水产学报,1998,22(4):
克氏原螯虾大颚器的超微结构研究
ULTRASTRUCTURES OF MANDIBULAR ORGAN IN PROCAMBARUS CLARKII
投稿时间:2014-05-06  修订日期:2014-05-06
DOI:
中文关键词: 克氏原螯虾 大颚器 超微结构
英文关键词: Procambarus clarkii , Mandibular organ , Ultra structures
基金项目:
作者单位地址
赵维信 上海水产大学渔业学院 上海水产大学渔业学院
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中文摘要:
      克氏原螯虾的大颚器为一对, 位于左右大颚的背面, 大颚几丁质腱外侧基部。大颚器 含丰富的血淋巴管和血窦, 大颚器细胞围绕血窦成短束状排列。典型大颚器细胞超微结构最显著的 特征:① 线粒体和光面内质网广泛分布于胞质中, 光面内质网明显分成小池状和小管状两种类型; ② 细胞质膜内陷并作不同程度的卷绕;③ 质膜外侧的基膜增厚, 富含微丝。在泡状化的大颚器细 胞中, 光面内质网几乎消失, 线粒体形态变异, 胞核中的异染色质沿核膜形成一圈, 显示细胞合成能 力改变, 呈现细胞产物分泌后的状态。
英文摘要:
      The mandibular organs of the cr ayfish(Procambarus clarkii)are in pairs , These yellow or gans ar e located at the dorsa of the paird mandibles , outside bases of mandibular chit inous tendons .Abundant hemolymph vessels and blood sinuses could be seen in the mandibular organ , the mandibular organ cells ar ranged in cords and surr ounded the blood sinuses .The most dist inguishing features of the typical mandibular organ cells are as follows :(1)The mitochondria and the smooth endoplasmic ret icula are dispersed extensively in the cytoplasma , and the smooth endoplasmic r eticulm occurs in two dist inct forms : cisternal and tubular .(2)The plasma membrane invaginates into cytoplasma and exhibi ts varying degrees of convolution .(3)The basal membr ane outside the plasma membrane is rich in microfilaments and thick .In the vacuola ted mandibular or gan cells , the smooth endoplasmic re ticula almost disappear , the thicken st ructures of mi tochondr ia change and the heterchromatins in the nuclear f orm a cycle near the nucle ar membrane .These modifications indicate th at the synthet ic capacity of cells causes a change , showing a state of cell pr oducts af ter se cre tion .
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