Biology:Quadrigula
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Short description: Genus of algae
| Quadrigula | |
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Scientific classification 
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| (unranked): | Viridiplantae |
| Division: | Chlorophyta |
| Class: | Chlorophyceae |
| Order: | Sphaeropleales |
| Family: | Selenastraceae |
| Genus: | Quadrigula Printz |
| Species | |
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Quadrigula is a genus of green algae in the family Selenastraceae.[1] It is commonly found in freshwater habitats as phytoplankton.[2]
Description
Quadrigula forms colonies of two, four, or cells within a common mucilaginous envelope. Cells are cigar-shaped, 7 to 45 μm long and 1 to 8 μm wide. The cells are bundled such that the long axes of cells are parallel to each other. The tips of the cells are rounded or acutely pointed. Cells contain a single nucleus and one parietal chloroplast; the chloroplast may or may not contain a pyrenoid.[2][3]
Species identification relies on details of the cell size and shape.[3]
References
- ↑ See the NCBI webpage on Quadrigula. Data extracted from the "NCBI taxonomy resources". National Center for Biotechnology Information. http://ftp.ncbi.nih.gov/pub/taxonomy/.
- ↑ 2.0 2.1 Shubert, Elliot; Gärtner, Georg (2014). "Chapter 7. Nonmotile Coccoid and Colonial Green Algae". Freshwater Algae of North America: Ecology and Classification (2 ed.). Elsevier Inc.. ISBN 978-0-12-385876-4.
- ↑ 3.0 3.1 Guiry, M.D.; Guiry, G.M. (2008). "Quadrigula". AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org/browse/taxonomy/?id=43447.
Wikidata ☰ Q7268401 entry
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