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Chlamydomonas species are widely distributed worldwide in soil and fresh water, of which Chlamydomonas reinhardtii is one of the most common and widespread. [1] C. reinhardtii is an especially well studied biological model organism , partly due to its ease of culturing and the ability to manipulate its genetics.
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]
Protococcus C.Agardh, 1824 accepted as Chlamydomonas (synonym) Sphaerellopsis Korshikov, 1925 accepted as Vitreochlamys (synonym) [4] The family is known to be non-monophyletic, with clades not aligning to traditionally defined morphological groupings. [5]
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. It allows the cells to sense light direction and intensity and respond to it, prompting the organism to either swim towards the light (positive phototaxis ...
Channelrhodopsin-1 (ChR1) and Channelrhodopsin-2 (ChR2) from the model organism Chlamydomonas reinhardtii are the first discovered channelrhodopsins. Variants that are sensitive to different colors of light or selective for specific ions (ACRs, KCRs) have been cloned from other species of algae and protists.
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.
Volvox carteri [1] is a species of colonial green algae in the order Volvocales. [2] The V. carteri life cycle includes a sexual phase and an asexual phase.V. carteri forms small spherical colonies, or coenobia, of 2000–6000 Chlamydomonas-type somatic cells and 12–16 large, potentially immortal reproductive cells called gonidia. [3]
The D66 strain of Chlamydomonas reinhardtii has been genetically engineered with no cell wall in order to increase the strain's growth and photosynthesis rates. [1] The technique of genetically engineering green algae to increase oil production for biofuels is becoming increasingly more prevalent around the United States.