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Polytoma
''Polytoma'' is a genus of flagellates in the family Chlamydomonadaceae. Algae are similar to the genus ''Chlamydomonas'', but lack chlorophyll and are colorless. Although they are not photosynthetic, they are grouped with the green algae because they are phylogenetically related to, and derived from, flagellate green algae. ''Polytoma'' species are found in waters rich in organic matter. Description ''Polytoma'' is a genus of colorless, free-living chlorophytes similar in form to ''Chlamydomonas'' but lacking chlorophyll. Two flagella emanate from the anterior papilla of the cell, and cells have two contractile vacuoles at the flagellar base. The cell body can be spherical, ellipsoid, ovoid, or kidney-shaped. ''Polytoma'' possesses a leukoplast in place of a chloroplast, in which many starch grains are concentrated; there are typically no pyrenoids. Since they lack photosynthetic capability, ''Polytoma'' species are entirely saprotrophic, obtaining nutrients from decaying org ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polytoma Anomale
''Polytoma'' is a genus of flagellates in the family Chlamydomonadaceae. Algae are similar to the genus ''Chlamydomonas'', but lack chlorophyll and are colorless. Although they are not photosynthetic, they are grouped with the green algae because they are phylogenetically related to, and derived from, flagellate green algae. ''Polytoma'' species are found in waters rich in organic matter. Description ''Polytoma'' is a genus of colorless, free-living chlorophytes similar in form to ''Chlamydomonas'' but lacking chlorophyll. Two flagella emanate from the anterior papilla of the cell, and cells have two contractile vacuoles at the flagellar base. The cell body can be spherical, ellipsoid, ovoid, or kidney-shaped. ''Polytoma'' possesses a leukoplast in place of a chloroplast, in which many starch grains are concentrated; there are typically no pyrenoids. Since they lack photosynthetic capability, ''Polytoma'' species are entirely saprotrophic, obtaining nutrients from decaying org ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |