Cell division in the green alga Ulothrix palusalsa (Ulvophyceae, Chlorophyta): A combined immunofluorescence and transmission electron microscopy study

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Abstract
A preliminary indirect immunofluorescence study was carried out to detect tubulin containing structures in dividing cells of the filamentous green alga Ulothrix palusalsa Lokhorst (Chlorophyta). Parallel transmission electron microscopy was conducted to help the interpretation of the immunofluorescence data. The fluorescence showing interzonal fibres, especially at anaphase and early telophase; (2) fluorescence occurring in a clear zone associated with the centriolar complexes and the nuclear envelope; (3) furrow associated fluorescence which is most prominent near less advanced furrows. throughout mitosis, the centriolar complexes stained intensely. The results provid additional evidence for the existence of a microtubular system associated with cytokinesis in an ulvophycean green alga.