|
Stigonematales
The Rivulariaceae are a family of cyanobacteria within the Nostocales in which the filaments (trichomes) are tapered from wider at the base to narrower at the tip. The type species is '' Rivularia haematites'' (Dc) C. A. Agardh. Genera , WoRMS listed the following genera under Rivulariaceae: * '' Amphithrix'' Bornet & Flahault, 1886 * '' Ariasmontanoa'' Molinari & Guiry, 2021 * ''Calothrix'' C.Agardh ex Bornet & Flahault, 1886 * '' Dichothrix'' Zanardini ex Bornet & Flahault, 1886 * '' Gaillardotella'' Bory de Saint-Vincent ex Kuntze, 1898 * '' Gardnerula'' G.De Toni, 1936 * '' Gloiotrichia'' J.Agardh, 1842 * '' Heteractis'' A.P.de Candolle, 1838 * '' Isactis'' Thuret ex Bornet & Flahault, 1886 * '' Macrochaete'' Berrendero, J.R.Johansen & Kastovsky, 2016 * '' Mastigonema'' H.Schwabe ex A.B.Frank, 1886 * ''Montanoa'' P.González, 1947 * '' Nunduva'' L.González-Resendiz, H.León-Tejera & J.R.Johansen, 2018 * '' Phyllonema'' D.O.Alvarenga, J.Rigonato, L.H.Z.Branco, I.S.Melo & ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyanobacteria
Cyanobacteria (), also known as Cyanophyta, are a phylum of gram-negative bacteria that obtain energy via photosynthesis. The name ''cyanobacteria'' refers to their color (), which similarly forms the basis of cyanobacteria's common name, blue-green algae, although they are not usually scientifically classified as algae. They appear to have originated in a freshwater or terrestrial environment. Sericytochromatia, the proposed name of the paraphyletic and most basal group, is the ancestor of both the non-photosynthetic group Melainabacteria and the photosynthetic cyanobacteria, also called Oxyphotobacteria. Cyanobacteria use photosynthetic pigments, such as carotenoids, phycobilins, and various forms of chlorophyll, which absorb energy from light. Unlike heterotrophic prokaryotes, cyanobacteria have internal membranes. These are flattened sacs called thylakoids where photosynthesis is performed. Phototrophic eukaryotes such as green plants perform photosynthesis in plast ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gloeotrichia Echinulata
''Gloeotrichia'' is a large (~2 mm) colonial genus of Cyanobacteria, belonging to the order Nostocales. The name ''Gloeotrichia'' is derived from its appearance of filamentous body with mucilage matrix. Found in lakes across the globe, gloeotrichia are notable for the important roles that they play in the nitrogen and phosphorus cycles. ''Gloeotrichia'' are also a species of concern for lake managers, as they have been shown to push lakes towards eutrophication and produce deadly toxins. Morphology Spherical colonies of radiating straight trichomes (filaments without sheaths). Each trichome has an akinete as the basal cell near the center of the colony. Akinetes if present are adjacent the heterocyst. The primary morphology is trichomous (filamentous without sheaths), the secondary is colonial. The mucilaginous sheath is top short at the apex. Heterocysts are usually spherical in appearance. Trichomes are tapered at the apical region. Vegetetive cells are shorter and barrel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tildenia (cyanobacteria)
''Keiferia'' is a genus of moths in the family Gelechiidae. Species * '' Keiferia altisolani'' (Kieffer, 1937) * '' Keiferia brunnea'' Povolný, 1973 * '' Keiferia chloroneura'' (Meyrick, 1923) * '' Keiferia colombiana'' Povolný, 1975 * '' Keiferia dalibori'' King & Montesinos, 2012 * '' Keiferia educata'' Povolný, 2004 * '' Keiferia elmorei'' (Keifer, 1936) * '' Keiferia funebrella'' Povolný, 1984 * '' Keiferia georgei'' (Hodges, 1985) * '' Keiferia glochinella'' (Zeller, 1873) * '' Keiferia griseofusca'' Povolný, 1984 * '' Keiferia gudmannella'' (Walsingham, 1897) * '' Keiferia inconspicuella'' (Murtfeldt, 1883) * '' Keiferia lobata'' Povolný, 1990 * ''Keiferia lycopersicella'' (Walsingham, 1897) * '' Keiferia powelli'' Povolný, 2004 * '' Keiferia propria'' Povolný, 1990 * '' Keiferia rusposoria'' Povolný, 1970 * '' Keiferia subtilis'' Povolný, 1984 * ''Keiferia vitalis ''Keiferia vitalis'' is a moth in the family Gelechiidae. It was described by Povolný in 1990. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rivularia (cyanobacteria)
''Rivularia'' is a genus of cyanobacteria of the family Rivulariaceae.Guiry, Michael D. (2014). Rivularia C.Agardh ex Bornet & Flahault, 1886. In: Guiry, M.D. & Guiry, G.M. (2014). AlgaeBase. World-wide electronic publication, National University of Ireland, Galway (taxonomic information republished from AlgaeBase with permission of M.D. Guiry). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=146623 on 2014-12-09 Description ''Rivularia'' is found growing on submerged stones, moist rocks, and damp soils near the riverside. It is found in colonies, and the trichomes are radially arranged within a colony, with each trichome wholly or partially surrounded by a gelatinous sheet. The trichomes have a basal heterocyst. Each trichome has a narrow aptic portion which is whip- or tail-like consisting of a row of small cells. Akinetes are absent in ''Rivularia''. The species multiply with the aid of hormogonia and heterocyst. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
