In Spyrogyra, the plastids (a type of chloroplast) are spiral around the interior of the cell. The nucleus is slightly to the right of the center. This alga was collected from the Gardner River near Sheepeater Cliffs.
Spirogyra observed in freshwater sediments in the vicinity of Broome, Western Australia in September 2003. This image was taken using phase contrast optics. This work was supported by the Australian Biological Resources Study.
Dark ground image of preserved filaments showing various stages of the conjugation process. Paired filaments caught during conjugation are above, filaments with zygotes are below.