Moorena Engene & Tronholm, 2019
Holotype species: Moorena producens Engene & Tronholm
Original publication and holotype designation: Tronholm, A. & Engene, N. (2019). Moorena gen. nov., a valid name for "Moorea Engene & al." nom. inval. (Oscillatoriaceae, Cyanobacteria). Notulae Algarum 122: 1-2, no figs.
Request PDFPrecise date of publication: 20 December 2019
Description: Large filamentous cyanobacteria are common in tropical marine oceans, abundant on coral reefs, rocks or mangroves at depths ranging between 0.3–30 m. Filaments are unbranched, <10 cm in length, with wide diameters [25–65 (82) µm]. Trichomes are cylindrical, not attenuated towards ends, constricted or not constricted on crosswalls, surrounded by thick (3–5 µm) and distinct polysaccharide sheaths. The sheaths are typically covered by a rich diversity of mucus (often containing heterotrophic bacteria and other micro-organisms). The cells are discoid, always shorter than they are wide [20–55 (70) µm wide and (2) 3–10 µm long]. The trichomes contain necridic cells separating the trichomes into hormogonia. The terminal cells of the filaments and those of the hormogonia are rounded. Non-diazotrophic and the filaments lack heterocysts or other specialized cells. Members of the genus are photosynthetic and contain phycobiliproteins (phycocyanin, phycoerythrin, and allophycocyanin) and chlorophyll a. Strains are often rich in bioactive secondary metabolites typically biosynthesized by PKS, NRPS or mixed PKS/NRPS pathways.
Origin of description: this description is from the original publication; it may have been modified slightly. The most recent alteration to this page was made on 2023-03-03 by M.D. Guiry.
Taxonomic status: This name is of an entity that is currently accepted taxonomically.
Gender: This genus name is currently treated as feminine.
Most recent taxonomic treatment adopted: Strunecký, O., Ivanova, A.P. & Mares, J. (2022 '2023'). An updated classification of cyanobacterial orders and families based on phylogenomic and polyphasic analysis (Review). Journal of Phycology 59(1): 12-51.
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Contributors
Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera,
organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA)
and intended to be published in CD format.
These AlgaeBase descriptions are now being continually updated, and each current contributor is identified above.
The PSA and AlgaeBase warmly acknowledge the generosity of all past and present contributors and particularly the work of Dr Parker.
Descriptions of chrysophyte genera were subsequently published in J. Kristiansen & H.R. Preisig (eds.). 2001. Encyclopedia of Chrysophyte Genera. Bibliotheca Phycologica 110: 1-260.
Linking to this page: https://www.algaebase.org/search/genus/detail/?genus_id=52740
Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 03 March 2023. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 03 May 2024
