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Valonia (alga)
''Valonia'' (C. Agardh, 1823) is a genus of green algae in the Valoniaceae family. The genus ''Ventricaria'' is now regarded as a synonym of ''Valonia''. Taxonomy and nomenclature The genus ''Valonia'' belongs to the order Cladophorales and class Valoiaceae. It comprises several taxonomically acceptable species based from available data and literatures. Below is a list of common species of ''Valonia'' found throughout the tropics: * ''Valonia fastigiata'' Harvey ex J. Agardh 1823 * Valonia ventricosa J.Agardh 1887 * ''Valonia utricularis'' (Roth) Agardh 1823 * ''Valonia aegagropila'' C. Agardh 1823 * ''Valonia macrophysa'' Kützing 1843 * ''Valonia ovalis'' C.Agardh 1822 * ''Valonia chlorocladus'' Hauck 1886 * ''Valonia cespitula'' Zanardini ex Kützing *''Valonia pachynema'' (G. Martens) Børgesen *''Valonia barbadensis'' W.R.Taylor, 1969 *''Valonia nutrix'' (Kraft & A.J.K.Millar) Kraft, 2007 *''Valonia oblongata'' J.Agardh, 1887 *''Valonia trabeculata'' Egerod, 1952 Gene ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Green Algae
The green algae (singular: green alga) are a group consisting of the Prasinodermophyta and its unnamed sister which contains the Chlorophyta and Charophyta/Streptophyta. The land plants (Embryophytes) have emerged deep in the Charophyte alga as sister of the Zygnematophyceae. Since the realization that the Embryophytes emerged within the green algae, some authors are starting to properly include them. The completed clade that includes both green algae and embryophytes is monophyletic and is referred to as the clade Viridiplantae and as the kingdom Plantae. The green algae include unicellular and colonial flagellates, most with two flagella per cell, as well as various colonial, coccoid and filamentous forms, and macroscopic, multicellular seaweeds. There are about 22,000 species of green algae. Many species live most of their lives as single cells, while other species form coenobia (colonies), long filaments, or highly differentiated macroscopic seaweeds. A few other organi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valoniaceae
Valoniaceae is a family of green algae in the order Cladophorales.See the NCBI The National Center for Biotechnology Information (NCBI) is part of the United States National Library of Medicine (NLM), a branch of the National Institutes of Health (NIH). It is approved and funded by the government of the United States. The ...br>webpage on Valoniaceae Data extracted from the References External links Ulvophyceae families Cladophorales {{Ulvophyceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valonia Ventricosa
''Valonia ventricosa'', also known as bubble algae, sea grape or sailor's eyeballs is a species of algae found in oceans throughout the world in tropical and subtropical regions, within the phylum Chlorophyta. It is one of the largest known unicellular organisms, if not the largest. Characteristics ''Valonia ventricosa'' has a coenocytic structure with multiple Cell nucleus, nuclei and chloroplasts. This organism possesses a large central vacuole which is multilobular in structure (lobules radiating from a central spheroid region). The entire cell contains several cytoplasmic domains with each domain having a nucleus and a few chloroplasts. Cytoplasmic domains are interconnected by cytoplasmic "bridges" that are supported by microtubules. The peripheral cytoplasm (whose membrane is overlaid by the cell wall), is only about 40 nm thick. ''Valonia ventricosa'' typically grow individually, but in rare cases they can grow in groups. Environment They appear in tidal zones of tropi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valonia Fastigiata
Valonia may refer to: * ''Valonia'' (alga), an algae genus in the family Valoniaceae * ''Valonia'' (spider), a spider genus in the family Sparassidae * Valonia oak (''Quercus macrolepis''), a tree species used in tanning * Valonia (fly), a signal fly, described by David McAlpine, 2001 in the family Platystomatidae (Diptera) See also * Vallonia ''Vallonia'' is a genus of small air-breathing land snails, Terrestrial mollusc, terrestrial pulmonate gastropod mollusks in the family Valloniidae. MolluscaBase eds. (2023). MolluscaBase. Vallonia Risso, 1826. Accessed through: World Regist ... {{Disambig Genus disambiguation pages ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Levulinic Acid
Levulinic acid, or 4-oxopentanoic acid, is an organic compound with the formula CH3C(O)CH2CH2CO2H. It is classified as a keto acid. This white crystalline solid is soluble in water and polar organic solvents. It is derived from degradation of cellulose and is a potential precursor to biofuels, such as ethyl levulinate. Synthesis Levulinic acid was first prepared in 1840 by Dutch chemist Gerardus Johannes Mulder by heating fructose with hydrochloric acid. The first commercial production of levulinic acid began as a batchwise process in an autoclave by starch manufacturer A. E. Staley in the 1940s. In 1953 Quaker Oats developed a continuous process for the production of levulinic acid. In 1956 it was identified as a platform chemical with high potential. and in 2004 the US Department of Energy (U.S. DoE) identified levulinic acid as one of the 12 potential platform chemicals in the biorefinery concept. The synthesis of levulinic acid from hexoses (glucose, fructose) or starch in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amino Acid
Amino acids are organic compounds that contain both amino and carboxylic acid functional groups. Although hundreds of amino acids exist in nature, by far the most important are the alpha-amino acids, which comprise proteins. Only 22 alpha amino acids appear in the genetic code. Amino acids can be classified according to the locations of the core structural functional groups, as Alpha and beta carbon, alpha- , beta- , gamma- or delta- amino acids; other categories relate to Chemical polarity, polarity, ionization, and side chain group type (aliphatic, Open-chain compound, acyclic, aromatic, containing hydroxyl or sulfur, etc.). In the form of proteins, amino acid '' residues'' form the second-largest component (water being the largest) of human muscles and other tissues. Beyond their role as residues in proteins, amino acids participate in a number of processes such as neurotransmitter transport and biosynthesis. It is thought that they played a key role in enabling life ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Center For Biotechnology Information
The National Center for Biotechnology Information (NCBI) is part of the United States National Library of Medicine (NLM), a branch of the National Institutes of Health (NIH). It is approved and funded by the government of the United States. The NCBI is located in Bethesda, Maryland, and was founded in 1988 through legislation sponsored by US Congressman Claude Pepper. The NCBI houses a series of databases relevant to biotechnology and biomedicine and is an important resource for bioinformatics tools and services. Major databases include GenBank for DNA sequences and PubMed, a bibliographic database for biomedical literature. Other databases include the NCBI Epigenomics database. All these databases are available online through the Entrez search engine. NCBI was directed by David Lipman, one of the original authors of the BLAST sequence alignment program and a widely respected figure in bioinformatics. GenBank NCBI had responsibility for making available the GenBank DNA seque ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cladophorales
Cladophorales are an order of green algae, in the class Ulvophyceae.See the NCBI The National Center for Biotechnology Information (NCBI) is part of the United States National Library of Medicine (NLM), a branch of the National Institutes of Health (NIH). It is approved and funded by the government of the United States. The ...br>webpage on Cladophorales Data extracted from the There is a plausible fossil example in the mid-Ordovician Winneshiek shale References External links Chlorophyta orders Taxa named by Ernst Haeckel {{Ulvophyceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
