Studies on the cortical morphogenesis during cell division inHalteria grandinella (Muller, 1773) (Ciliophora,Oligotrichida) |
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| Authors: | Song Weibo |
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| Institution: | (1) College of Fisheries, Ocean Univerity of Qingdao, 266003 Qingdao |
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| Abstract: | Morphogenesis during cell division was investigated in oligotrichous ciliate,Halteria grandinella utilizing protargol impregnated specimens. The cortical morphogenetical pattern ofHalteria grandinella is generally similar to that given by Fauré-Fremiet. The proter inherits the parental adoral zone of membranelles (AZM) apparently
unchanged; in the opisthe the oral primordium develops de novo from a single. AZM-anlage; somatic cirri for both the proter
and opisthe are separately differentiated from 10 (seldom 9) cirral primordia that originate de novo from 10 latitudinal developmental
analagen. The anlage of paroral membrane of opisthe forms just to the right of the posterior end of the oral primordium. Each
streak of cirral primordia develops 4 groups of basal body pairs: both of the anterior two consist of only one pair of basal
bodies, on the contrary, each of the last two groups has 2 basal body pairs.
This project was supported by The National Natural Science Foundation of China |
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| Keywords: | Halteria grandinella Ciliophora morphogenesis |
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