Desmarestiaceae
Desmarestiaceae
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| Desmarestiaceae | |
|---|---|
 | |
Desmarestia ligulata | |
Scientific classification  | |
| Kingdom: | Chromista |
| Phylum: | Ochrophyta |
| Class: | Phaeophyceae |
| Order: | Desmarestiales |
| Family: | Desmarestiaceae (Thuret) Kjellman |
| Genera | |
| |
Desmarestiaceae is a family of brown algae, one of two families in the order Desmarestiales.[1] The family gets its name from the genus Desmarestia, which is named after the French zoologist Anselme Gaëtan Desmarest (1784-1838).[2]
There are three genera in this family. Two are monotypic, Himantothallus (species name Himantothallus grandifolius) and Phaeurus (species name Phaeurus antarcticus). These are both endemic to Antarctica.[3] The third genus, Desmarestia, has 30[4] to 40 species.[3]
Most species have narrow, localized ranges, but some Desmarestia, such as D. ligulata and D. viridis, have disjunct but global distributions. It is thought that the family began its evolution in the Southern Hemisphere and radiated north. It is now distributed across much of the world, but is largely absent from tropical regions. An exception being the possibly extinct D. tropica of the Galápagos Islands. These algae require colder water temperatures for the successful production of gametes.[3]
Species of the Desmarestiaceae can grow large, with the thallus, the plantlike main part of the alga, reaching maximum lengths around 10 meters. They can be flattened or cylindrical, and narrow or many-branched. They are oogamous, with microscopic gametophytes.[5]
The thalli of some Desmarestia contain vacuoles of sulfuric acid with a pH as low as 0.44. These likely evolved to deter predators.[3] These algae have a very sour taste.[6] They can also have a bad odor when they are removed from the water.[7]
References[edit]
^ Guiry, M. D. & G. M. Guiry. 2013. Desmarestiales. AlgaeBase. National University of Ireland, Galway. Accessed 04 June 2013.
^ Lamouroux, Jean Vincent Félix (1813). "Essai sur les genres de la famille des thalassiophytes non articulées" (PDF). Annales du Muséum d'Histoire Naturelle, Paris (in French). 20: 43–45. OCLC 2099267. Retrieved 11 December 2017..mw-parser-output cite.citationfont-style:inherit.mw-parser-output qquotes:"""""""'""'".mw-parser-output code.cs1-codecolor:inherit;background:inherit;border:inherit;padding:inherit.mw-parser-output .cs1-lock-free abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .cs1-lock-limited a,.mw-parser-output .cs1-lock-registration abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .cs1-lock-subscription abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registrationcolor:#555.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration spanborder-bottom:1px dotted;cursor:help.mw-parser-output .cs1-hidden-errordisplay:none;font-size:100%.mw-parser-output .cs1-visible-errorfont-size:100%.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-formatfont-size:95%.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-leftpadding-left:0.2em.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-rightpadding-right:0.2em
^ abcd Peters, A. F., et al. (1997). Phylogeny and historical ecology of the Desmarestiaceae (Phaeophyceae) support a Southern Hemisphere origin. J Phycol 33 294-309.
^ Guiry, M. D. & G. M. Guiry. 2013. Desmarestia. AlgaeBase. National University of Ireland, Galway. Accessed 04 June 2013.
^ Womersley, H. B. S. Family Desmarestiaceae (Thuret) Kjellman. Electronic Flora of South Australia. Department of Environment, Water and Natural Resources. Government of South Australia. 2001.
^ Turner, N. J. and P. von Aderkas. The North American Guide to Common Poisonous Plants and Mushrooms. Timber Press. 2009. pg. 116.
^ Bremner, H. A. Safety and Quality Issues in Fish Processing. CRC Press. 2002. pg. 235.
Categories:
- Brown algae families
- Desmarestiales
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