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脂质营养对中华绒螯蟹幼体肝胰腺超微结构的影响
引用本文:江洪波,陈立侨,周忠良,温小波.脂质营养对中华绒螯蟹幼体肝胰腺超微结构的影响[J].动物学研究,2001,22(1):64-68,T001,T002.
作者姓名:江洪波  陈立侨  周忠良  温小波
作者单位:华东师范大学生物系
基金项目:国家自然科学基金! (No 39770 5 78)资助项目,教育部“跨世纪优秀人才培养计划”资助项目,上海市“曙光计划”项目! (No 975G0 6 )
摘    要:采用透射电镜技术研究了中华绒螯蟹(Eriocheir sinensis)各期幼体肝胰腺的超微结构,结果表明,蟹的肝胰腺腺管上皮由E,F,B和R4种细胞组成,其中E细胞为胚胎细胞,能分化成其他3种细胞;B,R和F细胞均呈,高柱状,腔面有发达的微绒毛,基底部有基膜,呈明显的极性分布;B细胞粗面内质网丰富,胞质中有1-2个大液泡,起分泌作用,属分泌液;F细胞内含发达的粗面内质网,还可见酶原颗粒;R细胞胞质中有丰富的滑面内质网、游离的核糖体和脂肪滴,主要起贮存养人的作用。细胞的连接有紧密连接和中间连接2种方式。与脂质营养缺乏时相比,脂质营养充足的幼体其肝胰腺超微结构有如下特点:R细胞质中有连多的脂肪滴,线粒体呈饱满的圆形或椭圆形,且膜未见有内陷或萎缩,滑面内质网膨胀成小泡状结构。

关 键 词:中华绒螯蟹幼体  肝胰腺  超微结构  营养状况  脂质营养
文章编号:0254-5853(2001)01-0064-05

Effects of Lipid Nutrition on Hepatopancreafic Ultrastructure of Eriocheir sinensis Larvae (Crustacea: Decapoda)
JIANG Hong-bo,CHEN Li-qiao,ZHOU Zhong-liang,WEN Xiao-bo.Effects of Lipid Nutrition on Hepatopancreafic Ultrastructure of Eriocheir sinensis Larvae (Crustacea: Decapoda)[J].Zoological Research,2001,22(1):64-68,T001,T002.
Authors:JIANG Hong-bo  CHEN Li-qiao  ZHOU Zhong-liang  WEN Xiao-bo
Abstract:From March to July of 1998 Eriocheir sinensis larvae were cultured by feeding with rotifers treated with lipid enrichment 50 DE-G at early zoeal developmental stages and with Artemia nauplii at postlarval developmental stages. The hepatopancreatic ultrastructure of the larvae was observed through transmission electronic microscopy. The results show: ① the hepatopancreatic length increase with the larval development, and the cells of hepatopancreas consist of four types, which are embryo cell (E cell), resorptive cell (R cell), fibrillar cell (F cell) and secretory cell (B cell) respectively; ② E cells are stem cells that can be differentiated into other three types of cells; ③ B cells have 1 to 2 large vacuoles and numerous rough endoplasmic reticulum (Rer); ④ R cells store some nutrients such as lipid droplets for the larvaldevelopment and have some vacuoles, large quantity of smooth endoplasmic reticulum ( Ser ) and free ribosomes, and many mitochondria with high electron density matrix and plenty of ridges can be observed in R cells; ⑤ F cells have plenty of zymogen granules near the apical cells; ⑥ compared with hepatopancreatic ultrastructure of the larvae fed with rotifers cultured by baker's yeast, significant difference can be observed in R cells. After enriched by lipid nutrients, R cells have more lipid droplets, and structural changes of mitochondria can be seen. The results indicate that ultrastructural changes in R cells of hepatopancreas could reflect the nutritional status of the larvae.
Keywords:Eriocheir sinensis  larvae  Hepatopancreas  Ultrastructure  Nutritional status
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