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Chlamydomonas (/ ˌ k l æ m ɪ ˈ d ɒ m ə n ə s,-d ə ˈ m oʊ-/ KLAM-ih-DOM-ə-nəs, -də-MOH-) is a genus of green algae consisting of about 150 species [2] of unicellular flagellates, found in stagnant water and on damp soil, in freshwater, seawater, and even in snow as "snow algae". [3]
Chlamydomonas reinhardtii is a single-cell green alga about 10 micrometres in diameter that swims with two flagella. It has a cell wall made of hydroxyproline -rich glycoproteins , a large cup-shaped chloroplast , a large pyrenoid , and an eyespot apparatus that senses light.
Chlamydomonas moewusii is a species of unicellular green alga belonging to the genus Chlamydomonas. C. moewusii is typically a freshwater species and occupies a significant position as a model organism for various scientific studies due to its relatively simple cellular structure and ease of cultivation.
Chlamydomonadaceae is a family of algae within the order Chlamydomonadales. [1] Traditionally, it has been defined as containing single-celled flagellates with a cell wall. [2] Cells of the Chlamydomonadaceae are motile and have one, two, or four flagella.
Hundreds of species of the ciliate genus Paramecium [3] or flagellated Euglena [4] are found in marine, brackish, and freshwater reservoirs; the green algae Chlamydomonas is distributed in soil and fresh water world-wide; [5] parasites from the genus Giardia colonize intestines of several vertebrate species. [6]
Chlamydomonas elegans is a species of freshwater green algae. It is commonly found in rainwater pools and other small, temporary bodies of water. [2] Chlamydomonas elegans is a unicellular organism with ellipsoidal-ovoid cells, which are usually flattened on one side, and rounded at the ends. Cell bodies are 23–30 μm long and 13–15 μm wide.
The name Chlamydomonas nivalis is of compound Greek and Latin origin. Chlamydomonas is ultimately derived from the Ancient Greek χλαμύς (khlamús, "cloak, mantle") and μονάς (monás, "solitary"), [8] while nivalis, from the Latin nivālis, translates to 'found growing in or near snow', as this species of algae are only found associated with snow or near snowy areas.
Schematic representation of a Euglena cell with red eyespot (9) Schematic representation of a Chlamydomonas cell with chloroplast eyespot (4). The eyespot apparatus (or stigma) is a photoreceptive organelle found in the flagellate or (motile) cells of green algae and other unicellular photosynthetic organisms such as euglenids.