Biology:Radiococcus
Radiococcus is a genus of green algae in the family Radiococcaceae.[1] It is found in the plankton of freshwater habitats.[2]
Radiococcus consists of colonies of cells embedded in a mucilage; the mucilage may have radial striations. Cells are 3–15 μm in diameter, often grouped into tetrads or arranged in a ring. The cell walls are mostly smooth, although in some species they may be warty (verrucose). Cells have a single nucleus and a single parietal chloroplast with one pyrenoid.[2]
Radiococcus reproduces asexually via the formation of autospores. Four to eight autospores are produced per sporangium; they are released when the mother cell wall fragments. Cell wall fragments remain in the mucilage for some time before dissolving.[2]
Radiococcus is considered an ill-defined genus in need of taxonomic revision.[3] It is similar to Planktosphaeria, which has multiple chloroplasts per cell,[4] and Korschpalmella, which lacks pyrenoids.[2]
References
- ↑ See the NCBI webpage on Radiococcus. Data extracted from the "NCBI taxonomy resources". National Center for Biotechnology Information. https://ftp.ncbi.nih.gov/pub/taxonomy/.
- ↑ 2.0 2.1 2.2 2.3 Cite error: Invalid
<ref>tag; no text was provided for refs namedAlgaeBase - ↑ John, David M.; Whitton, Brian A.; Brook, Alan J. (2021). The Freshwater Algal Flora of the British Isles (2 ed.). Cambridge University Press. pp. 896. doi:10.1017/CHOL9781108784122. ISBN 978-1-108-78412-2.
- ↑ Kostikov, I.; Darienko, T.; Lukešová, A.; Hoffmann, L. (2002). "Revision of the classification system of Radiococcaceae Fott ex Komárek (except the subfamily Dictyochlorelloideae) (Chlorophyta)". Archiv für Hydrobiologie Supplement 104: 23–58.
Wikidata ☰ Q7281241 entry
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