Halotia Genuário & al., 2015
Holotype species: Halotia branconii D.B.Genuário et al.
Original publication and holotype designation: Genuário, D.B., Vieira Vaz, M.G.M., Hentschke, G.S, Sant'Anna, C.L. & Fiore, M.F. (2015). Halotia gen. nov., a phylogenetically and physiologically coherent cyanobacterial genus isolated from marine coastal environments. International Journal of Systematic and Evolutionary Microbiology 65: 663-675.
Request PDFDescription: In nature, members of Halotia are found on soil from tropical mangroves and on bones and rocks in maritime regions of Antarctica. In nature, thalli are microscopic and, in liquid media, they grow as a gelatinous biomass on the bottom of the test tube or attached to the tube walls. Colonies are irregularly spherical and are sometimes enclosed by firm mucilage and are always enclosed by diffluent mucilage. Isodiametric motile hormogonia are present, and the terminal heterocytes develop first, followed by the intercalary ones. Members of Halotia have trichomes with spherical or subspherical cells (2.0–6.8 µm long, 2.3–4.6 µm wide) and heterocytes, which are generally straight at first and then become condensed and entangled in older colonies. Terminal heterocytes are dominant and conical, while intercalar heterocytes are spherical. The cells occasionally divide into two planes, forming plurisseriate trichomes. Akinetes are apoheterocytic, subspherical or elongated (2.7–7.5 µm long, 3.0– 6.4 µm wide) and always germinate into two vegetative cells.
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 2023-03-06 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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera,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=52314
Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 06 March 2023. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 24 April 2024
