Calliarthron
| Calliarthron | |
|---|---|
 | |
| Calliarthron yessoense | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Archaeplastida |
| Division: | Rhodophyta |
| Class: | Rhodophyceae |
| Subclass: | Nemaliophycidae |
| Order: | Corallinales |
| Family: | Corallinaceae |
| Subfamily: | Corallinoideae |
| Genus: | Calliarthron Manza, 1937 |
 |
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Calliarthron is a genus containing four species of thalloid intertidal[1] alga. Specimens can reach around 30 cm in size. The thalli take a crustose form. The organisms lack secondary pit connections. Calliarthron reproduces by means of conceptacles; it produces tetraspores, dispores and carpospores. The genus has lignin and contains secondary cell walls, traits which are normally associated with the vascular plants.[1] It is similar to the genus Bossiella.[2]
Calliarthron is calcified, but also has uncalcified joints that allow it to flex in response to the waves to which it is subjected.[1] These joints start out calcified, and decalcify as they grow older.[1] After decalcifying they grow much longer, then fatten themselves up in the same way as xylem formation, resulting in secondary walls.[1]
Species
The 4 species currently recognised are:
- C. latissimum
- C. tuberculosum
- C. yessoense
- C. cheilosporioides[1]
References
- Guiry, M.D.; Guiry, G.M. (2008). "Calliarthron". AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. Retrieved 2009-01-27.
- 1 2 3 4 5 6 Martone, Pt; Estevez, Jm; Lu, F; Ruel, K; Denny, Mw; Somerville, C; Ralph, J (Jan 2009). "Discovery of Lignin in Seaweed Reveals Convergent Evolution of Cell-Wall Architecture". Current Biology. 19 (2): 169–75. doi:10.1016/j.cub.2008.12.031. ISSN 0960-9822. PMID 19167225.
- ↑ "Calliarthron spp. (erect, geniculate corallines)". Kelp Forest Ecology.