The flagellar root system of zoospores of the green algaChlorosarcinopsis (Chlorosarcinales) as compared withChlamydomonas (Volvocales) |
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Authors: | Michael Melkonian |
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Institution: | (1) Institut für Allgemeine Botanik, Universität Hamburg, Jungiusstr. 6, D-2000 Hamburg 36, Germany |
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Abstract: | The flagellar root system of zoospores in two species ofChlorosarcinopsis (C. minuta andC. spec.) has been studied in detail. The biflagellate zoospores show a cruciate root system, two of the four microtubular roots containing two microtubules, the other two four microtubules. The flagellar apparatus is otherwise identical with that ofChlamydomonas reinhardi as described byRingo (1967). Evidence is presented that the genusChlamydomonas is characterized by a bilateral symmetric root system (4-2-4-2) rather than a system with four equally numbered roots (i.e. 4-4-4-4). It is suggested that a root system with four identical cruciate roots is not present in any biflagellate algal cell. The taxonomic significance of cruciate root systems in green algae is discussed refering to the identical root systems ofChlorosarcinopsis andChlamydomonas. |
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Keywords: | Chlorophyceae Chlorosarcinopsis Chlamydomonas Ultrastructure flagellar root system |
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