1887

Abstract

SUMMARY: The growth of microcolonies of six strains of unicellular blue-green algae was studied by time-lapse photomicrography. The four rod-shaped strains divided regularly in a plane perpendicular to the long axis of the cell; one spherical strain divided successively in two planes, and one in three planes, perpendicular to one another.

and the other rod-shaped blue-green algae studied have a very restricted ability to form chains, four-celled elements being the longest ones observed in slide cultures. They are therefore unicellular organisms, in no way different with respect to development from rod-shaped unicellular bacteria. The recent proposal that is filamentous and should be reclassified in the genus is based on a mis-understanding of the nature of unicellularity among procaryotic organisms.

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/content/journal/micro/10.1099/00221287-51-2-199
1968-04-01
2021-09-24
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