Pterocladiaceae

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Pterocladiaceae
Icones of Japanese algae (Pl. CXV) (8006305996).jpg
Illustration of Pterocladia capillacea from Icones of Japanese algae, 1913
Scientific classification Red Pencil Icon.png
(unranked): Archaeplastida
Division: Rhodophyta
Class: Florideophyceae
Order: Gelidiales
Family: Pterocladiaceae
Kung Chu Fan, 1961
Synonyms

Pterocladiastrum

The Pterocladiaceae is a small family of red algae containing 2 genera of agarophytes. [1]

Contents

They are found growing on the coast of Portugal, South Africa, India, Japan, Mexico, Chile and New Zealand. [2]

From the Gelidiales order, GelidiumJ.V. Lamouroux and PterocladiaJ. Agardh, are two of the most widespread genera (which have been often confused for each other) of the Gelidiaceae family. They are separated only by basic features of cystocarps (fruiting structures). The genus PterocladiellaSantelices et Hommersand was later established to segregate from Pterocladia those species with distinct carposporophyte developmental characters (Santelices and Hommersand 1997). [3]

Molecular analyses of taxa within the Gelidiales have identified four major lineages equivalent to Gelidiella, Pterocladia and Pterocladiella as sister taxa, and a fourth large clade including species of Acanthopeltis, Gelidium, Ptilophora, Porphyroglossum and Capreolia (Freshwater et al. 1995, Bailey and Freshwater 1997, Freshwater and Bailey 1998, Shimada et al. 1999). [3]

So the family of Pterocladiaceae was derived in 2006 to hold the genera of Pterocladia and Pterocladiella. [3]

Type genus is PterocladiaJ. Agardh (1851: xi) [3]

Taxonomy

The family name of Pterocladiaceae is derived from the genus Pterocladia, which is derived from the Greek words pteron meaning wing and clados meaning branch. [4]

Genera

As accepted by GBIF; [5]

Figures in brackets are approx. how many species per genus. [5]

Uses

Agar can be derived from many types of red seaweeds, including those from families such as Gelidiaceae , Gracilariaceae , Gelidiellaceae and Pterocladiaceae (including Pterocladiella, [6] ). It is a polysaccharide located in the inner part of the red algal cell wall. It is used in food material, medicines, cosmetics, therapeutic and biotechnology industries. [2] [7]

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<span class="mw-page-title-main">Gelidiaceae</span> Family of algae

The Gelidiaceae is a small family of red algae containing eight genera. Many species of this algae are used to make agar.

<i>Gelidium</i> Genus of algae

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<i>Kappaphycus</i> Genus of algae

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<span class="mw-page-title-main">Galaxauraceae</span> Family of algae

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<span class="mw-page-title-main">Batrachospermaceae</span> Family of algae

Batrachospermaceae is a family of fresh water red algae (Rhodophyta). Genera within the Batrachospermaceae generally have a "Lemanea-type" life history with carpospores germinating to produce chantransia. Sporophyte phase with meiosis occurs in an apical cell to produce the gametophyte stage. Pit connections have two pit plug cap layers with the other layer enlarged. This family of freshwater red algae is uniaxial, meaning each filament with a single apical cell. The genera included within Batrachospermaceae are listed in the table below.

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<span class="mw-page-title-main">Gelidiellaceae</span> Family of algae

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<span class="mw-page-title-main">Gracilariaceae</span> Family of algae

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<span class="mw-page-title-main">Liagoraceae</span> Family of algae

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<span class="mw-page-title-main">Thoreales</span> Order of algae

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<span class="mw-page-title-main">Halymeniales</span> Order of algae

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<span class="mw-page-title-main">Peyssonneliales</span> Order of algae

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References

  1. ↑ Fan, K.-C. 1961. Morphological studies of the Gelidiales. University of California Publications in Botany 32: [i–iv], 315–368, 15 figs, Plates 33–46.
  2. 1 2 Richard Koplik, Karel Cejpek and Jan Velisek The Chemistry of Food (2020) , p. 296, at Google Books
  3. 1 2 3 4 Perrone, Cesira; Felicini, Gianni P.; Bottalico, Antonella (January 2006). "The prostrate system of the Gelidiales: Diagnostic and taxonomic importance". Botanica Marina. 49 (1): 23–33. doi:10.1515/BOT.2006.003.
  4. ↑ Dr. Peter Jarvis The Pelagic Dictionary of Natural History of the British Isles: Descriptions ... (2020) , p. 2196, at Google Books
  5. 1 2 "Pterocladiaceae". www.gbif.org. Retrieved 5 August 2022.
  6. ↑ Wang, Xulei; Yan, Shuheng; Wang, Yongqiang; Sun, Zhongmin; Xia, Bangmei; Wang, Guangce (2020). "Study of the phylogeny and distribution of Pterocladiella (Pterocladiaceae,Rhodophyta) from China". Phycologia. 59 (2): 165–176. doi:10.1080/00318884.2020.1717909.
  7. ↑ Mohammed Kuddus and Roohi (editors) Bioplastics for Sustainable Development (2021) , p. 317, at Google Books

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