| 1. | The freshwater crab is widely distributed in chinese freshwater area , while the sinopotamon yangtsekiensei is a kind of representative one of the freshwater crab
溪蟹广泛分布在我国的淡水水域中，而长江华溪蟹( sinopotamonyangtsekiense )是此类动物中的代表动物。 |
| 2. | The freshwater crab is widely distributed in chinese freshwater area , while the sinopotamon yangtsekiensei is a kind of representative one of the freshwater crab
溪蟹广泛分布在我国的淡水水域中，而长江华溪蟹( sinopotamonyangtsekiense )是此类动物中的代表动物之一。 |
| 3. | Section four : effects of copper and cadmium on ultrastructure of myocardial cell in sinopotamon yangtsekiense the effect of copper and cadmium on ultrastructure of myocardial cells of sinopotamon yangtsekiense was studied by us
铜、镉联合作用30d后，细胞核形态进一步改变，内外膜分离程度加大，异染色质疑集加重。线粒体膜破裂，内容物外流，嵴断裂消失。 |
| 4. | Section : laboratory experiment was carried out to determine mercury accumulation in four organs that were gills , heart , hepatopancreas and gonad of freshwater crab sinopotamon yangtsekiense by using atomic absorption method
汞在长江华溪蟹四种器官的积累以体外暴露的方式，采用还原气化原子吸收的方法，测定了长江华溪蟹鳃、心脏、肝胰腺和性腺中汞的积累情况。 |
| 5. | 55mg / l [ hg2 ] ) for 48 days , the changes of hg2 + on ultrastructure of the myocardial cells of the freshwater crab sinopotamon yangtsekiense ( ) at three different times was studied . sixty freshwater crabs ( ) were divided into two groups : control ( n = 30 ) and test ( n = 30 ) groups
汞对长江华溪蟹心肌细胞超微结构的影响应用透射电镜的方法，研究了汞在12天、 28天及48天内对长江华溪蟹心肌细胞超微结构的影响。 |
| 6. | The phylogenetic analysis of these two nonmarine crabs together with intertidal , supratidal and swimming crabs based on portions of mitochondrial 16s rdna sequences suggested that grapsioidea , ocypodoidea , potamoidea and portunoidea arose from a common marine ancestor , and the estimated divergence time are similar . the freshwater crab phylogeny suggested that the genus sinopotamon and the genus potamonautes arose from a common ancestor and the estimated divergence time is about 36 - 44 mya
基于线粒体16srdna部分序列，对这2个类型的非海洋蟹类与潮间带蟹类、海洋蟹类之间的系统发生分析提示，方蟹总科( grapsioidea ) 、沙蟹总科( ocypodioidea ) 、溪蟹总科( potamoidea )和梭子蟹总科( portunoidea )的蟹类起源于一个共同的海洋蟹类祖先，它们彼此之间的歧异时间基本一致。 |
| 7. | The number of mitochondrion is more less than the endoplasmic reticulum , and the smooth endoplasmic reticulum is the main kind of the endoplasmic reticulum ; golgi bodies and lysosomes emerge in the secondary spermatocyte stage . finally , these organelles change into pre - acrosome vesicles which become acrosome at last . sinopotamon chekiangense during the spermatogenensis , chronmatins condense at different level until middle spermatid stage
在整个发生过程中细胞器数量较少，内质网数目在各细胞器中所占比例最大，以滑面内质网为主，线粒体在初级精母细胞中最多，自次级精母细胞开始逐渐减少，高尔基体和溶酶体自次级精母细胞始出现，在发育过程中上述细胞器不断分化，在精细胞阶段形成前顶体腔，最后形成圆球形顶体。 |
| 8. | The result showed that muscle cells is damaged by exposure in low dosage of cd2 + . so cadmiun is a very important poison substance in the environment . section two : effects of lead on ultrastructure of myocardial cell in freshwater crab sinpotamon yangtsekiense from may to june in 2002 , the effect of pb2 + on ultrastructure of myocardial cells of sinopotamon yangtsekiense was studied by using transmission electron microscopy ( tem )
体外暴露铅对长江华溪蟹心肌细胞超微结构的影响于2002年5 6月，采用体外暴露铅的方法处理长江华溪蟹( sinopotamonyangtsekiense ) ，应用透射电镜技术( tem ) ，观察了铅对心肌细胞超微结构的影响。 |
| 9. | From this result it can be concluded that the est isoenzyme was very sensitivity for the toxication of hg24 and can be used as a bioindicator of the environmental pollution . the same experiment had been done twice in 2003 . scetion : from october in 2002 to october in 2003 , by using random amplified polymorphic dna ( rapd ) , the effects on ovary ' s dna under different concentration of mercury in freshwater crab ( sinopotamon yangtsekiense ) were detected for the first time
汞对长江华溪蟹卵巢总dna的影响汞对长江华溪蟹( sinopot胭onyangtsekiense )细胞及分子水平的影响以体外暴露的方法，对经汞体外暴露一周长江华溪蟹的卵巢总dna ，采用随机引物扩增多态性dna ( rapd )技术对13条随机引物的扩增图谱用nei共享度公式进行分析。 |
| 10. | Section : this paper dealed with the effects at different concentrations of hg2 + on the esterase isoenzyme ( est ) of the gill , heart , hepatopancreas and gonad in freshwater crab sinopotamon yangtsekiense by using polyacrylamide gel electrophoresis ( page ) . the crabs were exposed one week . the concentrations of mercury were omg / l , 0 . 0547 mg / l , 0 . 1727 mg / l , 0 . 5457 mg / l and 1 . 7244mg / l
汞对长江华溪蟹四种器官酯酶同工酶的影响采用聚丙烯酰胺凝胶电泳的方法，以体外暴露的方式，测定了长江华溪蟹鳃、心脏、肝胰腺、性腺四种器官酯酶同工酶的变化。 |
