文章摘要
张志峰.中国对虾幼体复眼的超微结构_[J].水产学报,1999,23(3):
中国对虾幼体复眼的超微结构_
ULTRASTRUCTURE OF COMPOUND EYE IN THE LARVAL STAGES OF PENAEUS CHINENSIS
投稿时间:2014-04-18  修订日期:2014-04-18
DOI:
中文关键词: 中国对虾 幼体 复眼 超微结构
英文关键词: Penaeus chinensis , Larval stage ,Compound eye , Ultrastructure
基金项目:国家攀登计划B资助;联合国教科文组织资助
作者单位地址
张志峰 青岛海洋大学海洋生命学院 青岛海洋大学海洋生命学院
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中文摘要:
      用电镜对中国对虾幼体复眼的超微结构进行了研究。结果表明,Z1 期复眼仅处于眼基细胞状态,至Z2 期,构成复眼的每个个眼的基本组成结构已具备,但各部分结构尚待进一步发育。个眼的小眼面至仔虾期以前均呈六角形状,但当仔虾体长达0.7~0 .8cm 时,小眼面基本成为方形。随着幼体发育,角膜厚度渐增;其下角膜生成细胞中的主要胞器,如线粒体、粗面内质网逐渐减少;幼体阶段,晶状体外亦有角膜生成细胞延伸而成的鞘包围,晶状体束在Z3 期或Z2 末期才由晶状体细胞分泌而成,晶状体细胞似有逐渐变小的趋势,而晶状体束则逐渐粗大;晶状体基部周围的虹膜色素细胞在仔虾期以前均未见色素颗粒产生;小网膜细胞内的色素颗粒随发育稍有增多,由小网膜细胞微绒毛构成的感杆束在Z2 期便已形成,且以后逐渐加长。
英文摘要:
      Ultrastructure of compound eye was investigated by TEM and SEM in the larval stages of Penaeus chinensis .The result indicated :The compound eye is in photoreceptive rudiment at Z1 stage .During Z2 stage , the main components of every ommatidium of compound eye were completed .The surface of ommatidium had the appearance of hexagonal facetting before post-larval stage .But the facet was square when the length is 0 .7 ~ 0 .8cm at post-larval stage .Some main organelles of corneagenous cell , such as mitochondia , rough endoplasmic reticulum, etc .decreased gradually .Crystalline tract secreted by crystalline cells began at Z2 stage and became thick gradually .Iris pigmental cells didn' t produce pigmental granules before the post-larval stage .Retina pigments slight increased gradually as developing .The rhabdom was formed at Z2 stage and lengthened gradually .
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