It has been more than 100 years since the first description of the chromosomes of the amphioxus branchiostoma lanceolatum by stricht in 1895 自stricht1895年报道文昌鱼的染色体以来,迄今只报道了branchiostomalanceolatum 、 b
These results indicated that lectins present in the skin mucus of amphioxus and defend amphioxus from the invasion of pathogene 这些结果表明,在文昌鱼的体表粘液中存在着凝集素,在机体免疫中起到阻碍外源异物和微生物入侵的第一道屏障的作用。
Here , we report the results of the study on the complement system of the cephalochordate amphioxus and lower vertebrates lip shark and grass carp 本文选择了在系统演化上占据主要地位的文昌鱼以及软骨鱼和硬骨鱼,对它们的补体系统进行了研究。
Amphioxus or lancelet , a cephalochordate , has long been regarded as the living invertebrate most closely related to the proximate invertebrate ancestor of vertebrates 在动物的进化历程中,文昌鱼是介于无脊椎动物与脊椎动物之间的过渡类型。
The result illustrated that there were low polymorphism between amphioxus . lacking of genetic diversity challenged the existence of amphioxus on the decline in resources 在文昌鱼雌雄个体rapd产物中, 2个电泳图谱上均能读出明显的雌雄差异带。
Dot blot and northern blot studies revealed that amphihmgb expression is restricted mainly to ovaries and guts in adult amphioxus while it is highly expression during embryogenesis 文昌鱼amphihmgb蛋白不含c ?端酸性尾巴,为一碱性蛋白,等电点为9 . 88 。
The hemagglutinating activity of the fluids was not affected by treatment with 50 mm edta and egta , while it was increased by treatment with 3 - me 经注射鸡大肠杆菌后,文昌鱼体液中的凝集素对人b 、 o型红血细胞,兔、草鱼和蟾蜍红血细胞的凝集活性明显增强。
These suggest that the hemolytic activities displayed by amphioxus humoral fluid appear to represent the vertebrate complement system probably operating via the alternative pathway ( ap ) 这些结果说明:文昌鱼体液中存在着类似于脊椎动物替代途径补体样的溶血活性。
The masp ( mannose - binding lectin - associated serine protease ) gene has been cloned by the method of degenerative pcr and the fragment of the pcr product is 630 bps in length 本文还利用pcr方法从青岛文昌鱼基因组dna中克隆masp (甘露聚糖结合凝集素相关丝氨酸蛋白酶)基因片段。
1 . chromosome number ( 2n ) and fundamental number ( fn ) the chromosome number and karyotype of amphioxus branchiostoma belcheri tsingtauense were studied using embryonic cells of the animal 染色体数目( 2n )和臂数( fn )用青岛文昌鱼的胚胎细胞作材料,对其染色体数目和核型进行研究。