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Morphogenetic observations on the marine ciliate Euplotes vannus during cell division (Protozoa: Ciliophora)

Published online by Cambridge University Press:  09 December 2009

Jiamei Jiang ,
Chen Shao ,
Henglong Xu  and
Khaled A.S. Al-Rasheid
Jiamei Jiang
Affiliation:
Laboratory of Protozoology, Ocean University of China, Qingdao 266003, China
Chen Shao
Affiliation:
Laboratory of Protozoology, Ocean University of China, Qingdao 266003, China
Henglong Xu*
Affiliation:
Laboratory of Protozoology, Ocean University of China, Qingdao 266003, China
Khaled A.S. Al-Rasheid
Affiliation:
Department of Zoology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
*
Correspondence should be addressed to: H. Xu, Laboratory of Protozoology, Ocean University of China, Qingdao 266003, China email: [email protected]
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Abstract

Morphogenetic events during the division of the marine ciliate, Euplotes vannus (Müller, 1786) Diesing, 1850 were investigated using protargol impregnation: (1) the opisthe's oral primordium develops de novo in a subsurface pouch above the marginal cirri; (2) the cirral anlagen for the frontal, ventral and transverse cirri in both dividers develop separately on the surface epi-apokinetally, cirrus I/1 and marginal anlagen for daughter cells are formed de novo separately; (3) the dorsal kinety anlagen occur in a non-typical primary pattern within the parental structures at mid-body, of which the 3 right-most ones produce the 3 caudal cirri for the proter; and (4) the opisthe acquires 2 caudal cirri from the end of the right-most 2 kineties. Based on the data available, the reasons for the variation in the number of caudal cirri in E. vannus are discussed.

Keywords

caudal cirriontogenesiseuplotids
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 90 , Issue 4 , June 2010 , pp. 683 - 689
Copyright
Copyright © Marine Biological Association of the United Kingdom 2009

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