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Ectocarpales

Ectocarpales is a very large order in the brown algae (class Phaeophyceae). The order includes families with pseudoparenchymatous (Splachnidiaceae) or true parenchymatous (Scytosiphonaceae) tissue. Pseudoparenchymatous refers to a filamentous alga with cells packed very close together to give an appearance of parenchymatous tissue, the latter being composed of cells which can truly divide in three dimensions, unusual among the algae. Filamentous algae are composed of cells that divide along a single plane, allowing only elongation to form filaments of one or more rows of cells. Algae that can divide in two planes can form sheet-like thalli or bodies. Cells that can divide in a third plane potentially allow for the organism to develop a more complex body plan, and diversification of body plans into an erect thallus of some sort and a holdfast for attaching the upright portion to the substrate.[2][3]

Ectocarpales
Leathesia difformis
Scientific classification
Domain: Eukaryota
Clade: Diaphoretickes
Clade: SAR
Clade: Stramenopiles
Phylum: Gyrista
Subphylum: Ochrophytina
Class: Phaeophyceae
Subclass: Fucophycidae
Order: Ectocarpales
Setchell & N.L.Gardner
Families
Synonyms[1]
  • Chordariales Setchell & N.L.Gardner
  • Dictyosiphonales Setchell & N.L.Gardner
  • Scytosiphonales Feldmann

A 2014 classification recognizes the following families:[1]

References edit

  1. ^ a b Silberfeld, Thomas; Rousseau, Florence; Reviers, Bruno de (2014). "An Updated Classification of Brown Algae (Ochrophyta, Phaeophyceae)". Cryptogamie, Algologie. 35 (2): 117–156. doi:10.7872/crya.v35.iss2.2014.117. ISSN 0181-1568.
  2. ^ Lee, R.E. (1999). Phycology (Third ed.). Cambridge: Cambridge University Press. ISBN 978-0-521-63883-8.
  3. ^ Guiry, M.D.; G.M. Guiry (2006). "AlgaeBase version 4.2". World-wide electronic publication, National University of Ireland, Galway. Retrieved 2006-11-22.

Further reading edit

Clayton, M. N (1974). "STUDIES ON THE DEVELOPMENT LIFE HISTORY AND TAXONOMY OF THE ECTOCARPALES PHAEOPHYTA IN SOUTHERN AUSTRALIA". Australian Journal of Botany. 22 (4): 743–814. doi:10.1071/BT9740743.


ectocarpales, very, large, order, brown, algae, class, phaeophyceae, order, includes, families, with, pseudoparenchymatous, splachnidiaceae, true, parenchymatous, scytosiphonaceae, tissue, pseudoparenchymatous, refers, filamentous, alga, with, cells, packed, v. Ectocarpales is a very large order in the brown algae class Phaeophyceae The order includes families with pseudoparenchymatous Splachnidiaceae or true parenchymatous Scytosiphonaceae tissue Pseudoparenchymatous refers to a filamentous alga with cells packed very close together to give an appearance of parenchymatous tissue the latter being composed of cells which can truly divide in three dimensions unusual among the algae Filamentous algae are composed of cells that divide along a single plane allowing only elongation to form filaments of one or more rows of cells Algae that can divide in two planes can form sheet like thalli or bodies Cells that can divide in a third plane potentially allow for the organism to develop a more complex body plan and diversification of body plans into an erect thallus of some sort and a holdfast for attaching the upright portion to the substrate 2 3 Ectocarpales Leathesia difformis Scientific classification Domain Eukaryota Clade Diaphoretickes Clade SAR Clade Stramenopiles Phylum Gyrista Subphylum Ochrophytina Class Phaeophyceae Subclass Fucophycidae Order EctocarpalesSetchell amp N L Gardner Families Acinetosporaceae Adenocystaceae Chordariaceae Ectocarpaceae Petrospongiaceae Scytosiphonaceae Synonyms 1 Chordariales Setchell amp N L Gardner Dictyosiphonales Setchell amp N L Gardner Scytosiphonales Feldmann A 2014 classification recognizes the following families 1 Acinetosporaceae Hamel ex J Feldmann Adenocystaceae F Rousseau B de Reviers M C Leclerc A Asensi and R Delepine Chordariaceae Greville Ectocarpaceae C Agardh Petrospongiaceae Racault et al Scytosiphonaceae FarlowReferences edit a b Silberfeld Thomas Rousseau Florence Reviers Bruno de 2014 An Updated Classification of Brown Algae Ochrophyta Phaeophyceae Cryptogamie Algologie 35 2 117 156 doi 10 7872 crya v35 iss2 2014 117 ISSN 0181 1568 Lee R E 1999 Phycology Third ed Cambridge Cambridge University Press ISBN 978 0 521 63883 8 Guiry M D G M Guiry 2006 AlgaeBase version 4 2 World wide electronic publication National University of Ireland Galway Retrieved 2006 11 22 Further reading edit nbsp Wikispecies has information related to Ectocarpales Clayton M N 1974 STUDIES ON THE DEVELOPMENT LIFE HISTORY AND TAXONOMY OF THE ECTOCARPALES PHAEOPHYTA IN SOUTHERN AUSTRALIA Australian Journal of Botany 22 4 743 814 doi 10 1071 BT9740743 nbsp This Phaeophyceae or brown alga article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Ectocarpales amp oldid 1190909781, wikipedia, wiki, book, books, library,

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