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MICROSCOPIC INVESTIGATIONS OF STROMBOMONAS WITH SPECIAL REFERENCE TO RELEASE FROM THE LORICA FOLLOWING CELL DIVISION
Author(s) -
Zimmermann S.,
Conforti V.,
Triemer R.E.
Publication year - 2000
Publication title -
journal of phycology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.85
H-Index - 127
eISSN - 1529-8817
pISSN - 0022-3646
DOI - 10.1046/j.1529-8817.1999.00001-216.x
Subject(s) - biology , ultrastructure , cytokinesis , protozoa , euglena gracilis , ciliata , cell division , algae , botany , zoology , cell , chloroplast , biochemistry , genetics , gene
The Euglenophyta include four genera of Euglena ‐like cells enclosed in a lorica. Two of these genera, Trachelomonas and Strombomonas , are free swimming. These taxa have been differentiated and classified at the generic and species level based primarily on the morphology of their lorica. Numerous SEM studies have been conducted, yet few, if any, TEM descriptions exist, especially for Strombomonas. This study describes both the outer lorica and internal ultrastructure for Strombomonas sp. isolated from a fresh water pond in New Jersey. Additionally, we describe the release of daughter cells from the lorica following cell division. Two cells were observed within a single Strombomonas lorica following cytokinesis. When exposed to the light of the microscope, one or both of the cells emerged through the neck of the lorica. The released cells could easily be mistaken for Euglena species.