ISSN:
1615-6102
Keywords:
Mechanical cell constriction
;
Morphogenesis
;
Nucleo-cytoplasmic ratio
;
Pleurotaenium
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Summary Cells of a green alga,Pleurotaenium nodosum, were tied off with thin fibers, after which development of daughter semicells from the small tied mother semicells was examined with a light microscope. Semicells slightly shortened due to tying mostly developed normal sized daughter semicells with four nodes. However, semicells shorter than 1/2 the normal size developed small daughter semicells with fewer nodes. This was interpreted that the daughter semicells of shortened semicells had not enlarged sufficiently to allow formation of four nodes on the cell surface at the initial stage of node formation. The initiation of node formation was recognized as taking place in the contact region between the plasma membrane and the cell wall in plasmolyzed cells. The distance between two neighbouring contact regions was consistent at about 6 μm.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01275614
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