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Tribonema
''Tribonema'' is a genus of filamentous, freshwater yellow-green algae. The holotype A holotype is a single physical example (or illustration) of an organism, known to have been used when the species (or lower-ranked taxon) was formally described. It is either the single such physical example (or illustration) or one of seve ... for the genus is the species '' Tribonema bombycina'' ( C.Agardh) Derbès & Solier. Species recorded from Ireland include: ''Tribonema affine'' (G.S.West) G.S. West; ''T. minus'' (G.A. Klebs) Hazen and ''T. viride'' Pascher.Guiry, M.D., John, D.M., Rindi, F and McCarthy, T.K. (ed) 2007. ''New Survey of Clare Island. Volume 6: The Freshwater and Terrestrial Algae.'' Royal Irish Academy. References Heterokont genera Xanthophyceae {{heterokont-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yellow-green Algae
Yellow-green algae or the Xanthophyceae (xanthophytes) are an important group of heterokont algae. Most live in fresh water, but some are found in marine and soil habitats. They vary from single-celled flagellates to simple colonial and filamentous forms. Xanthophyte chloroplasts contain the photosynthetic pigments chlorophyll ''a'', chlorophyll ''c'', β-carotene, and the carotenoid diadinoxanthin. Unlike other heterokonts, their chloroplasts do not contain fucoxanthin, which accounts for their lighter colour. Their storage polysaccharide is chrysolaminarin. Xanthophyte cell walls are produced of cellulose and hemicellulose. They appear to be the closest relatives of the brown algae. Classifications The species now placed in the Xanthophyceae were formerly included in the Chlorophyceae. In 1899, Lüther created the group Heterokontae for green algae with unequal flagella. Pascher (1914) included the Heterokontae in the Chrysophyta. In 1930, Allorge renamed the group as Xanth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tribonema Bombycina
''Tribonema'' is a genus of filamentous, freshwater yellow-green algae. The holotype A holotype is a single physical example (or illustration) of an organism, known to have been used when the species (or lower-ranked taxon) was formally described. It is either the single such physical example (or illustration) or one of sever ... for the genus is the species '' Tribonema bombycina'' ( C.Agardh) Derbès & Solier. Species recorded from Ireland include: ''Tribonema affine'' (G.S.West) G.S. West; ''T. minus'' (G.A. Klebs) Hazen and ''T. viride'' Pascher.Guiry, M.D., John, D.M., Rindi, F and McCarthy, T.K. (ed) 2007. ''New Survey of Clare Island. Volume 6: The Freshwater and Terrestrial Algae.'' Royal Irish Academy. References Heterokont genera Xanthophyceae {{heterokont-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
August Alphonse Derbès
August Alphonse Derbès (8 May 1818, Marseille – 27 January 1894, Marseille) was a French professor of naturalist, zoologist and botanist at the University of Marseille who studied reproduction of sea urchins and of algae. Derbès was the first scientist to observe the fertilization of an egg in an animal when he detailed the process of an envelope forming around the gamete A gamete (; , ultimately ) is a haploid cell that fuses with another haploid cell during fertilization in organisms that reproduce sexually. Gametes are an organism's reproductive cells, also referred to as sex cells. In species that produce ... during sea urchin reproduction, a process now known to be associated with Ca2+ release. References 1818 births Scientists from Marseille 1894 deaths Academic staff of Aix-Marseille University {{botanist-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antoine Joseph Jean Solier
Antoine Joseph Jean Solier (8 February 1792, in Marseille – 27 November 1851, in Marseille) was a French naturalist, entomologist and plant collector. Captain of engineers in the French army, he made collections in France, Algeria and the Mediterranean area and on an expedition to Oceania especially of Coleoptera. Solier worked on world beetle fauna writing many scientific papers and ''Orden III. Coleopteros''.Gay, C., Historia fisica y politica de Chile segun documentos adquiridos en esta republica durante doce aos de residencia en ella y publiciada bajo los auspicios del supremo gobierno. ''Zoologia''. Tomo cuarto. Paris, Chile, p. 105-508. His collections, especially important for Tenebrionidae, are in the Muséum national d'histoire naturelle. He was a Member of the Société entomologique de France The Société entomologique de France, or French Entomological Society, is devoted to the study of insects. The society was founded in 1832 in Paris, France. The soci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fresh Water
Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. Although the term specifically excludes seawater and brackish water, it does include non- salty mineral-rich waters such as chalybeate springs. Fresh water may encompass frozen and meltwater in ice sheets, ice caps, glaciers, snowfields and icebergs, natural precipitations such as rainfall, snowfall, hail/ sleet and graupel, and surface runoffs that form inland bodies of water such as wetlands, ponds, lakes, rivers, streams, as well as groundwater contained in aquifers, subterranean rivers and lakes. Fresh water is the water resource that is of the most and immediate use to humans. Water is critical to the survival of all living organisms. Many organisms can thrive on salt water, but the great majority of higher plants and most insects, amphibians, reptiles, mammals and birds need fresh water to survive. Fresh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AlgaeBase
AlgaeBase is a global species database of information on all groups of algae, both marine and freshwater, as well as sea-grass. History AlgaeBase began in March 1996, founded by Michael Guiry. Text was copied from this source, which is available under Attribution 4.0 International (CC BY 4.0)licence. (Sehere. By 2005, the database contained about 65,000 names. In 2013, AlgaeBase and the Flanders Marine Institute (VLIZ) signed an end-user license agreement regarding the Electronic Intellectual Property of AlgaeBase. This allows the World Register of Marine Species (WoRMS) to include taxonomic names of algae in WoRMS, thereby allowing WoRMS, as part of the Aphia database, to make its overview of all described marine species more complete. Synchronisation of the AlgaeBase data with Aphia and WoRMS was undertaken manually until March 2015, but this was very time-consuming, so an online application was developed to semi-automate the synchronisation, launching in 2015 in conju ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
