What are desmids functions?
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Desmids are unicellular micro-organisms belonging to the green algal families of Mesotaeniaceae and Desmidiaceae. They occur in standing freshwaters. Although among the microbes ranking as real giants, with the unaided eye even the largest representatives are hardly to be seen. So, for studying them a microscope is indispensable. Only under the microscope (magnification 40 to 400x) it appears how aesthetically appealing most of the species are. The bright-green cells show a remarkable symmetry. Actually, each cell consists of two half cells being mirror images of one another. In the connecting bridge between the half-cells the cellular nucleus is situated, but usually this is only to be seen by means of specific dyes.
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Desmids are an order in the Charophyta, division of green algae that forms a sister group to the land plants (Embryophyta).
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