Gelidiellaceae

The Gelidiellaceae is a small family of red algae containing 5 genera of agarophytes.[1]

Gelidiellaceae
Illustration of Gelidium rigidum (Vail) Grev. L (now Gelidiella acerosa) and Hypnea musciformis (Wulf.) Lamour.
Scientific classification Edit this classification
(unranked): Archaeplastida
Division: Rhodophyta
Class: Florideophyceae
Order: Gelidiales
Family: Gelidiellaceae
Kung Chu Fan, 1961

Members of the family Gelidiellaceace are noted by the lack of hyphae and the lack of sexual reproduction. They have 2 kinds of tetrasporangial sori (either the acerosa-type or the pannosa-type).[2]

Gelidiella acerosa is found worldwide, from Europe, North America, Central America and South America, the Atlantic Islands, Africa, Indian Ocean islands, South west Asia, Asia (including China, Japan and Taiwan), South-east Asia (including Vietnam, Myanmar, Thailand, Singapore, Philippines and Indonesia), Australia, New Zealand and the Pacific islands.[3]

Taxonomy

It was originally formed in 1961, to hold Gelidiella and (its single known species, Gelidiella acerosa), as it lacked a medullary hyphae (or rhizines) and lack of sexual phase in life.[4] More species of Gelidiella from France and the British Isles were added.[5] In 1987, Maggs and Guiry thought that the family should be merged with Gelidiaceae, but this was mostly ignored by later authors.[6] Then Parviphycus was added in 2004,[7] but then in 2016, three more genera were added Huismaniella, Millerella and Perronella.[8]

Genera

As accepted by GBIF;[9]

  • Gelidiella Feldmann & G.Hamel, 1934 (10)
  • Huismaniella G.H.Boo & S.M.Boo, 2016 (1)
  • Millerella G.H.Boo & S.M.Boo, 2016 (3)
  • Parviphycus Santelices, 2004 (8)
  • Perronella G.H.Boo, T.V.Nguyen, J.Y.Kim & S.M.Boo, 2016

Figures in brackets are approx. how many species per genus.[9]

Uses

Agar can be derived from many types of red seaweeds, including those from families such as Gelidiaceae, Gracilariaceae, Gelidiellaceae and Pterocladiaceae. 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.[10]

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. Perrone, Cesire; Felicini, Gianni P.; Bottalico, Antonella (2006). "The prostrate system of the Gelidales:diagnostic and taxonomic importance". Botanica Marina. 49: 23–33. doi:10.1515/BOT.2006.003. S2CID 84290787.
  3. Antoninovich Eduard Titlyanov, Viktorovna Tamara Titlyanova, Xiubao Li and Hui Huang Coral Reef Marine Plants of Hainan Island (2016), p. 204, at Google Books
  4. Paul C. Silva, Philip W. Basson and Richard L. Moe Catalogue of the Benthic Marine Algae of the Indian Ocean (1996), p. 147, at Google Books
  5. Sandra C. Lindstrom and P.W. Gabrielson (Editors) [https://books.google.com/books?id=jLrrCAAAQBAJ&pg=PA128 Thirteenth International Seaweed Symposium: Proceedings of the Thirteenth ... (2012)], p. 128, at Google Books
  6. Wolfram Lobin, Eberhard Fischer and José Ormonde The Ferns and Fern-allies (Pteridophyta) of the Cape Verde Islands, West-Africa (1998), p. 81, at Google Books
  7. Santelices, Bernabé (2004). "Parviphycus, a new genus in the Gelidiellaceae (Gelidiales, Rhodophyta)". Cryptogamie, Algol. 25 (3): 313–326.
  8. Boo, G.H., Nguyen, T.V., Kim, J.Y., Le Gall, L., Rico, J.M., Bottalico, A. & Boo, S.M. 2016. A revised classification of the Gelidiellaceae (Rhodophyta) with descriptions of three new genera: Huismaniella, Millerella and Perronella. Taxon 65(5): 965–979, 6 figs. DOI: 10.12705/655.2
  9. "Gelidiellaceae". www.gbif.org. Retrieved 5 August 2022.
  10. Mohammed Kuddus and Roohi (editors) Bioplastics for Sustainable Development (2021), p. 317, at Google Books
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