卡龙游仆虫无性生殖期间的形态发生学研究：原生动物,纤毛虫

卡龙游仆虫为海洋中自由生纤毛虫，利用银染法对该种二分裂期间的形态发生学进行了初步的研究，其主要过程为：１．伴随大核改组带的出现和ＤＮＡ复制开始，口原基发生于老口围 方皮膜下一龛腔内，后由前至后组装成围口小膜而演化为后ＡＺＭ。老口围带及口侧膜在原位被被前仔虫继承；２．体棘毛场首先出现两组棘毛原基，其随后各自独立演化成９根前、后仔虫的额－腹－横棘毛；３．缘棘毛原基也为独立发生，初为单一，后断裂为二并分

MORPHOGENETICAL STUDIES ON THE MARINECILIATE Euplotes charon(Protozoa, Ciliophora)

Morphogenesis of the marine ciliate, Euplotes charon was investigeted with protargol impregnation method. The results demonstrate that the main events of the cortical pattern during the morphogenetic procedure are very similar to those of other known Euplotes species.The general procedure is: 1) along with the reorgnization of the macronucleus, the opisthe's oral primordium appears de novo under the pellicle posterior to the buccal field, from which the AZM, PM and one of frontal cirrus will be derived; 2) two groups of FVT cirral anlagen each with 5 streaks occur de novo, which will be differentiated separately to the frontoventral and transverse cirri in both dividing parts. Different from that of most other hypotrichs, the process of development of the anlagen according to an order from left to right; 3) anlagen of dorsal kinetics appear within the old structure, where the caudal cirri come from the right - most two anlagen.All the morphogenetic characteristics mentioned here or those described previously by other authors have agreed with the systematic arrangement that euplotids with related genera might be devided into several independent taxa within the order Hypotrichida.