鬃异源棘尾虫的形态学及细胞发生学研究  

Morphology and Ontogeny of Tetmemena pustulata(Müller,1786)Eigner,1999 from Mohe,China

作　　者：罗晓甜[1] 李俐琼[1,2] 马洪钢[1] 胡晓钟[1] 

机构地区：[1]中国海洋大学水产学院,山东青岛266003 [2]中国农业大学烟台研究院海洋学院,山东烟台264670

出　　处：《中国海洋大学学报（自然科学版）》2016年第11期82-90,共9页Periodical of Ocean University of China

基　　金：国家自然科学基金项目(31430077);青岛市应用基础研究计划项目(15-12-1-1-jch)资助~~

摘　　要：利用活体观察和蛋白银染色技术对鬃异源棘尾虫(Tetmemena pustulata(Müller,1786)Eigner,1999)漠河种群的形态学及细胞发生学进行了详尽的研究。研究表明:本种群与其他种群在活体形态和纤毛图式特征方面十分吻合。无性生殖期间细胞发生学表现出的主要特征如下:1)老口围带为前仔虫所继承,老波动膜仅在前部发生更新;2)后仔虫口原基为表层独立发生;3)老棘毛II/2、III/2与IV/3、IV/2、V/4分别参与前、后仔虫额-腹-横棘毛原基的构建;4)前、后仔虫额-腹-横棘毛原基I-VI以"1∶3∶3∶3∶4∶4"的方式分化形成棘毛;5)前、后仔虫的缘棘毛原基分别由老结构反分化形成;6)背触毛发生为尖毛虫模式,但2列背缘触毛原基源于右缘棘毛原基前端断裂。本研究为该种背缘触毛原基起源的首次揭示。The morphology and morphogenesis of Tetmemena pustulata（Müller,1786）Eigner,1999 isolated from Mohe,China,were investigated using live observation and protargol impregnation.Our populations resembled the other populations in terms of their live characters and ciliary patterns.The main morphogenetic features during division are described as follows：1）the parental adoral zone of membranelles is kept by the proter,but the parental undulating membranes are retained after division,except for the anterior part dedifferentiating into undulating membranes anlagen;2）the oral primordium of the opisthe develops de novo on cell surface;3）the parental cirri II/2and III/2,IV/3,IV/2,and V/4contribute to the formation of fronto-ventral-transverse cirral anlagen for the proter and opisthe,respectively;4）the fronto-ventral-transverse cirral anlagen I^VI forms cirri in the mode of＂1∶3∶3∶3∶4∶4＂;5）marginal cirri anlagen are generated within the parental marginal rows;6）dorsal kineties are formed in Oxytrichapattern,and the 5th and 6th dorsomarginal kineties originate from small segments split anteriorly from right marginal row anlagen,which is the first reveal for the origination of the dorsomarginal kineties for Tetmemena pustulata.

关 键 词：纤毛虫 腹毛亚纲 散毛目 尖毛虫科 细胞发生 

分 类 号：Q959.117[生物学—动物学]