Chlamydomonas | EPFL Graph Search

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Chlamydomonas (ˌklæmɪˈdɒmənəs,_-dəˈmoʊ- ) is a genus of green algae consisting of about 150 species of unicellular flagellates, found in stagnant water and on damp soil, in freshwater, seawater, and even in snow as "snow algae". Chlamydomonas is used as a model organism for molecular biology, especially studies of flagellar motility and chloroplast dynamics, biogenesis, and genetics. One of the many striking features of Chlamydomonas is that it contains ion channels (channelrhodopsins) that are directly activated by light. Some regulatory systems of Chlamydomonas are more complex than their homologs in Gymnosperms, with evolutionarily related regulatory proteins being larger and containing additional domains. Molecular phylogeny studies indicated that the traditional genus Chlamydomonas as defined using morphological data, was polyphyletic within Volvocales. Many species were subsequently reclassified (e.g., Oogamochlamys, Lobochlamys), and many other "Chlamydomonas" s.l. lineages are still to be reclassified. All Chlamydomonas are unicellular organisms, spherical or slightly cylindrical, and a papilla may be present or absent. Chloroplasts are green and usually cup-shaped. A key feature of the genus is its two anterior flagella, each as long as the other. The flagellar microtubules may each be disassembled by the cell to provide spare material to rebuild the other's microtubules if they are damaged. Chlamydomonas acidophila Chlamydomonas caudata Wille Chlamydomonas ehrenbergii Gorozhankin Chlamydomonas elegans G.S.West 1915 Chlamydomonas moewusii Chlamydomonas muriella J.W.G.Lund 1947 Chlamydomonas nivalis Chlamydomonas ovoidae Chlamydomonas priscuii Chlamydomonas reinhardtii Chlamydomonas is widely distributed in freshwater or damp soil. It is generally found in a habitat rich in ammonium salt. It possesses red eye spots for photosensitivity and reproduces both asexually and sexually. Chlamydomonas'''s asexual reproduction occurs by zoospores, aplanospores, hypnospores, or a palmella stage, while its sexual reproduction is through isogamy, anisogamy or oogamy.

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Chlamydomonas

Chlamydomonas reinhardtii

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 that senses light. Chlamydomonas species are widely distributed worldwide in soil and fresh water. Chlamydomonas reinhardtii is an especially well studied biological model organism, partly due to its ease of culturing and the ability to manipulate its genetics.

Green algae

The green algae (: green alga) are a group consisting of the Prasinodermophyta and its unnamed sister which contains the Chlorophyta and Charophyta/Streptophyta. The land plants (Embryophytes) have emerged deep in the Charophyte alga as sister of the Zygnematophyceae. Since the realization that the Embryophytes emerged within the green algae, some authors are starting to include them. The completed clade that includes both green algae and embryophytes is monophyletic and is referred to as the clade Viridiplantae and as the kingdom Plantae.

Explores Euler equations, gyroscopic effects, and stability in rotating systems, focusing on the dynamics of rotation and gyroscopes.

Delves into the movement of motile unicellular organisms and the concept of morphing structures inspired by them.