期刊
JOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM
卷 90, 期 4, 页码 683-689出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S0025315409991342
关键词
caudal cirri; ontogenesis; euplotids
资金
- Natural Science Foundation of China [4090605]
- Center of Excellence in Biodiversity, King Saud University
Morphogenetic events during the division (if the marine ciliate, Euplotes vannus (Muller, 1786) Dresing, 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 arral anlagen for the frontal, ventral and transverse cirri in both dividers develop separately on the surface epi-apokinetally, cirrus and marginal anlagen fir daughter cells are formed de novo separately; (3) the dorsal kinety analagen 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 fir the prow, and (4) the opisthe acquires 2 caudal cirri from the end of the right-most 2 kinetics Based on the data available, the reasons for the variation in the number of caudal cirri in E. vannus are discussed
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