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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]
Eudorina is a paraphyletic genus in the volvocine green algae clade. [1] Eudorina colonies consist of 16, 32 or 64 individual cells grouped together. Each individual cell contains flagella which allow the colony to move as a whole when the individual cells beat their flagella together.
Among protoctists and microscopic animals, a flagellate is an organism with one or more flagella. Some cells in other animals may be flagellate, for instance the spermatozoa of most animal phyla. Flowering plants do not produce flagellate cells, but ferns, mosses, green algae, and some gymnosperms and closely related plants do so. [2]
The order is well-defined and has several unique features, including asexual reproduction with zoospores that possess stephanokont flagella: numerous short flagella arranged in a subapical whorl. [1] The oedogoniales have a highly specialized type of oogamy, and an elaborate method of cell division which results in the accumulation of apical caps.
Typically, one flagellum is very short, and does not protrude from the cell, while the other is long enough to be seen with light microscopy. In some species, such as Euglena mutabilis, both flagella are "non-emergent"—entirely confined to the interior of the cell's reservoir—and consequently cannot be seen in the light microscope.
Ochromonadales is an order of single-celled algae belonging to the class Chrysophyceae, also known as golden algae.Initially it contained numerous groups of flagellates that were not closely related.
H. arenicola is a protist with one rounded cell having two flagella for locomotion. It feeds on algae using a complex feeding tube when it leads an independent life. The feeding tube, however, is replaced by an endosymbiotic alga. [5] The algal endosymbiont is a green alga from the genus Nephroselmis. [2]
Cercozoa contains various examples of amoeboflagellates with filose pseudopods, thread-like cell projections also known as filopodia. The cercomonads , glissomonads and paracercomonads behave as amoeboflagellates with two flagella throughout the majority of their life cycle , [ 2 ] [ 4 ] and are essential predators of the soil microbiome . [ 5 ]