Biology:Mesospora

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Short description: Genus of macroalgae

Mesospora
Scientific classification e
Domain: Eukaryota
Clade: Diaphoretickes
Clade: SAR
Clade: Stramenopiles
Phylum: Gyrista
Subphylum: Ochrophytina
Class: Phaeophyceae
Order: Ralfsiales
Family: Mesosporaceae
Genus: Mesospora
Weber-van Bosse

Mesospora is a genus of macroalgae that was described by Anna Weber-van Bosse in 1911. Although considered a taxonomic synonym of Hapalospongidion, the World Register of Marine Species cites six accepted species of the genus.[1]

Description

Mesospora is characterized as a crustose brown macroalga with a saxicolous habitat, gelatinous crustose thallus, adherent to the substrate without rhizoids, several cells thick basal layer, unbranched erect free filaments, intercalary plurilocular reproductive structures uniseriate or biseriate and unilocular reproductive structures stalked and borne laterally at base of erect vegetative filaments.[2]

Mesospora is said to be morphologically similar to Diplura. Their difference lies in the number of chloroplasts per cell. The Mesospora has a single chloroplast per cell, a one-celled sterile tip of the erect filament and unilocular sporangia, while the Diplura has several chloroplasts per cell and lacks unilocular sporangia.[3]

Species

Species according to WoRMS as of April 17, 2022.[1]

  • Mesospora elongata S.W.Poong, P.E.Lim & S.M.Phang, 2013
  • Mesospora indopacifica S.-W.Poong, P.-E.Lim & S-M.Phang, 2017
  • Mesospora lombokensis S.-W.Poong, P.-E.Lim & S.-M.Phang, 2017
  • Mesospora negrosensis J.A.West & H.P.Calumpong, 1996
  • Mesospora pangoensis (Setchell) Chihara & J.Tanaka, 1982
    • Mesospora pangoensis var. galapagensis (Setchell & Gardner) Chihara & J.Tanaka, 1982
  • Mesospora schmidtii Weber-van Bosse, 1911

References

  1. 1.0 1.1 "WoRMS - World Register of Marine Species - Mesospora Weber-van Bosse, 1911". https://www.marinespecies.org/aphia.php?p=taxdetails&id=369897. 
  2. West J.A. and, Calumpong, H.P. (1996). "MESOSPORA NEGROSENSIS SP. NOV. (PHAEOPHYTA) FROM THEPHILIPPINES". The Philippine Scientist 33: 5–15. 
  3. Tanaka, J.; Chihara, M. (September 1982). "Morphology and taxonomy of Mesospora schmidtii Weber van Bosse, Mesosporaceae fam. nov. (Ralfsiales, Phaeophyceae)" (in en). Phycologia 21 (3): 382–389. doi:10.2216/i0031-8884-21-3-382.1. ISSN 0031-8884. https://www.tandfonline.com/doi/full/10.2216/i0031-8884-21-3-382.1. 

Wikidata ☰ Q21587127 entry