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Diagram of Ochromonas sp. The "primary" cell of chrysophytes contains two specialized flagella. The active, "feathered" (with mastigonemes) flagellum is oriented toward the moving direction. The smooth passive flagellum, oriented toward the opposite direction, may be present only in rudimentary form in some species.
Chrysophyta or golden algae is a term used to refer to certain heterokonts. Dinobryon sp. from Shishitsuka Pond, Tsuchiura, Ibaraki Prefecture, Japan. It can be used to refer to: Chrysophyceae (golden algae), Bacillariophyceae (diatoms), and Xanthophyceae (yellow-green algae) together. [1] E.g., Pascher (1914). [2]
The name points to a character that is deemed to be synapomorphic for the group: that is the microtubular arrays that extend from the surface of the nucleus.Many flagellated forms have a single emergent flagellum, that lacks the root structure found in related chrysophytes.
The diagram depicts some mechanisms by which marine diatoms contribute to the biological carbon pump and influence the ocean carbon cycle. The anthropogenic CO 2 emission to the atmosphere (mainly generated by fossil fuel burning and deforestation) is nearly 11 gigatonne carbon (GtC) per year, of which almost 2.5 GtC is taken up by the surface ...
The genus Mallomonas was first named and classified by Dr. Maximilian Perty in 1852. [2] It was assigned its own genus because Mallomonas consisted of individually living cells, while its sister group Synura is composed of colonial cells that are connected to one another through stalks.
Algae (UK: / ˈ æ l ɡ iː / AL-ghee, US: / ˈ æ l dʒ iː / AL-jee; [3] sg.: alga / ˈ æ l ɡ ə / AL-gə) is an informal term for any organisms of a large and diverse group of photosynthetic eukaryotes, which include species from multiple distinct clades.
4 Division Chrysophyta. 5 Division Phaeophyta. 6 Division Cyanophyta. 7 Division Rhodophyta. 8 Division Myxothallophyta. 9 Division Eumycetae. 10 Division Bryophyta ...
Shortly after, unicellular chrysophytes were described by Otto Friedrich Müller. During this first era of scientific discovery, brown algae were described as plants, while microscopic algae were treated as animals under the name of infusoria. [19] During the 20th century, evolutionary and phylogenetic discussions began including heterokont algae.