Biology:Scytonema
| Scytonema | |
|---|---|
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| Scytonema, illustration | |
Scientific classification 
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| Domain: | Bacteria |
| Phylum: | Cyanobacteria |
| Class: | Cyanophyceae |
| Order: | Nostocales |
| Family: | Scytonemataceae |
| Genus: | Scytonema C.Agardh ex É.Bornet & C.Flahault, 1886 |
| Type species | |
| Scytonema hofmanii C.Agardh ex Bornet & Flahault
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| Species | |
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See text. | |
Scytonema is a genus of photosynthetic cyanobacteria that contains over 100 species. It grows in filaments that form dark mats. Many species are aquatic and are either free-floating or grow attached to a submerged substrate, while others species grow on terrestrial rocks, wood, soil, or plants. Scytonema is a nitrogen fixer, and can provide fixed nitrogen to the leaves of plants on which it is growing.[1] Some species of Scytonema form a symbiotic relationship with fungi to produce a lichen.
Scyptolins are a type of elastase inhibitors isolated from some species of Scytonema.[2]
A study comparing red macroalgae to Scytonema species showed their potential for cosmetical use, both for their antioxidants properties and photoprotection capacities due to their compounds MAAs, and scytonemin (unique to Scytonema).[3] This study indicated that they could be used as photoprotectors absorbing both in the UV-B and UV-A.
Species
Scytonema includes the following subtaxa:[4]
References
- ↑ "Scytonema.web". http://www.biology.duke.edu/bio265/Archive/1999/czcf/scytonema.html.
- ↑ Matern, Ute; Schleberger, Christian; Jelakovic, Stjepan; Weckesser, Jürgen; Schulz, Georg E. (Oct 2003). "Binding structure of elastase inhibitor scyptolin A". Chemistry & Biology 10 (10): 997–1001. doi:10.1016/j.chembiol.2003.10.001. ISSN 1074-5521. PMID 14583266.
- ↑ Vega, Julia; Schneider, Geniane; Moreira, Bruna R.; Herrera, Carolina; Bonomi-Barufi, José; Figueroa, Félix L. (January 2021). "Mycosporine-Like Amino Acids from Red Macroalgae: UV-Photoprotectors with Potential Cosmeceutical Applications" (in en). Applied Sciences 11 (11): 5112. doi:10.3390/app11115112.
- ↑ M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2018. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org/search/genus/detail/?genus_id=Rc504974e8d4a0331 ; searched on 17 August 2018.
External links
Wikidata ☰ Q1315636 entry
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