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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 moewusii possesses two flagella, which it uses for locomotion and orientation in its aquatic environment. As in other Chlamydomonas species, reproduction in C. moewusii occurs both asexually through cell division and sexually through the formation of gametes. [3]
Asexual reproduction occurs when the cell protoplast divides to form two, four, or eight daughter cells, with cell walls forming while still in the parent cell wall. Before cell division, the flagella usually disappear. Daughter cells are typically liberated when the parent cell wall gelatinizes, or through a rupture in the parent cell wall.
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.
Chlorophycean algae are eukaryotic organisms composed of cells which occur in a variety of forms. Depending on the species, Chlorophyceae can grow unicellular (e.g. Chlamydomonas), colonial (e.g. Volvox), coenocytic (e.g. Characiosiphon), or filamentous (e.g. Chaetophora).
Reproduction (or procreation or breeding) is the biological process by which new individual organisms – "offspring" – are produced from their "parent" or parents. There are two forms of reproduction: asexual and sexual. In asexual reproduction, an organism can reproduce without the involvement of another organism.
There is a single nucleus typically embedded in the center of the cell. [1] Reproduction in Chloromonas occurs asexually and sexually. Asexual reproduction is by cell division, forming two or four zoospores. Sexual reproduction in the genus is diverse and can be isogamous, anisogamous, or oogamous. [1]
Under the strict definition of isogamy, fertilization occurs when two gametes fuse to form a zygote. [8] Sexual reproduction between two cells that does not involve gametes (e.g. conjugation between two mycelia in basidiomycete fungi), is often called isogamy, although it is not technically isogametic reproduction in the strict sense. [1]