Chlorangiella | |
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Scientific classification
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(unranked): | Viridiplantae |
Division: | Chlorophyta |
Class: | Chlorophyceae |
Order: | Chlamydomonadales |
Family: | Chlorangiellaceae |
Genus: |
Chlorangiella De Toni [1] |
Species | |
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Chlorangiella is a genus of microscopic algae, the type genus of the family Chlorangiellaceae. [1] The name Chlorangiella was coined by Giovanni Battista de Toni in 1889. [1] It is a nomen novum for Chlorangium F.Stein. [1]
Species of Chlorangiella are attached via stalks to freshwater algae, crustaceans, rotifers, or insect larvae. [2] They can attach to the substrate, such as the copepod Cyclops, in such large quantities as to make them appear green. [3] They have been recorded from many continents, mostly in temperate habitats. [1]
Chlorangiella consists of single cells or groups of cells, where the cells are borne on the ends of mucilaginous stalks. Stalks may be branched or unbranched and up to 5 times the lengths of the cells. The cells themselves are ovoid, 5–42 μm long. They contain a single cell nucleus (i.e. are uninucleate) and contractile vacuoles at their apices. Chloroplasts are one to several, parietal and band-shaped, with or without a pyrenoid. [1]
Asexual reproduction occurs by the formation of zoospores. The zoospores may be released at the apex of the sporangium, and swim until they settle and develop into a new organism; alternatively, they may attach at the base of the sporangium and develop a stalk. Sexual reproduction has not been observed in this genus. [1]