dcsimg

Rhodogorgonales ( anglais )

fourni par wikipedia EN

The Rhodogorgonales are an order of red algae, a sister group to the corallines. They are always thalloid and calcified; their calcification is very different from the corallines, as individual calcite crystals are deposited in the cell wall of specialised cells; this suggests that the evolution of calcification may have been independent from the corallines.[2] They have no fossil record.[3]

Unlike the corallinales and sporolithales, their closest relatives, these thalli are loose aggregations of hair-like cells, with the middle portion formed of rhizoid-like filaments. Spores are borne on the end of hair-like cells (cortical fascicles).[4]

Images can be seen in "Rhodogorgon ramosissima J. N. Norris & Bucher (Rhodogorgonales, Rhodogorgonaceae, Rhodophyta), registro nuevo para la Costa Venezolana". Acta Bot. Venez. 29 (2). 2006.

Families

As accepted by AlgaeBase;[1]

References

  1. ^ a b Guiry, M.D.; Guiry, G.M. "Rhodogorgonales". AlgaeBase. World-wide electronic publication, National University of Ireland, Galway.
  2. ^ Xiao, S.; Knoll, A.H.; Yuan, X.; Pueschel, C.M. (2004). "Phosphatized multicellular algae in the Neoproterozoic Doushantuo Formation, China, and the early evolution of florideophyte red algae". American Journal of Botany. 91 (2): 214–227. doi:10.3732/ajb.91.2.214. PMID 21653378.
  3. ^ Aguirre, J.; Perfectti, F.; Braga, J. C. (2010). "Integrating phylogeny, molecular clocks, and the fossil record in the evolution of coralline algae (Corallinales and Sporolithales, Rhodophyta)". Paleobiology. 36 (4): 519. doi:10.1666/09041.1.
  4. ^ Le Gall, L.; Payri, C.; Bittner, L.; Saunders, G. (2010). "Multigene phylogenetic analyses support recognition of the Sporolithales ord. Nov". Molecular Phylogenetics & Evolution. 54 (1): 302–305. doi:10.1016/j.ympev.2009.05.026. PMID 19490946.
  5. ^ FREDERICQ, S.; NORRIS, J. N. (1995). "A new order (Rhodogorgonales) and family (Rhodogorgonaceae) of red algae composed of two tropical calciferous genera, Renouxia gen. nov. and Rhodogorgon". Cryptogamic Botany. 5: 316–331.
  6. ^ NORRIS J. N.; BUCHER K. E. (1989). "Rhodogorgon, an anamolous new red algal genus from the Caribbean Sea". Proceedings of the Biological Society of Washington. 102 (4): 1050–1066. ISSN 0006-324X.
licence
cc-by-sa-3.0
droit d’auteur
Wikipedia authors and editors
original
visiter la source
site partenaire
wikipedia EN

Rhodogorgonales: Brief Summary ( anglais )

fourni par wikipedia EN

The Rhodogorgonales are an order of red algae, a sister group to the corallines. They are always thalloid and calcified; their calcification is very different from the corallines, as individual calcite crystals are deposited in the cell wall of specialised cells; this suggests that the evolution of calcification may have been independent from the corallines. They have no fossil record.

Unlike the corallinales and sporolithales, their closest relatives, these thalli are loose aggregations of hair-like cells, with the middle portion formed of rhizoid-like filaments. Spores are borne on the end of hair-like cells (cortical fascicles).

Images can be seen in "Rhodogorgon ramosissima J. N. Norris & Bucher (Rhodogorgonales, Rhodogorgonaceae, Rhodophyta), registro nuevo para la Costa Venezolana". Acta Bot. Venez. 29 (2). 2006.

licence
cc-by-sa-3.0
droit d’auteur
Wikipedia authors and editors
original
visiter la source
site partenaire
wikipedia EN