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Chlorophyll D
Chlorophyll ''d'' is a form of chlorophyll, identified by Harold Strain and Winston Manning Winston may refer to: Places Antarctica * Winston Glacier Australia * Winston, Queensland, a suburb of the City of Mount Isa United Kingdom * Winston, County Durham, England, a village * Winston, Suffolk, England, a village and civil pari ... in 1943. It is present in cyanobacteria which use energy captured from sunlight for photosynthesis. Chlorophyll ''d'' absorbs far-red light, at 710 nm wavelength, just outside the optical range. An organism that contains chlorophyll ''d'' is adapted to an environment such as moderately deep water, where it can use far red light for photosynthesis, although there is not a lot of visible light. References {{Plant pigments Tetrapyrroles Photosynthetic pigments ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chlorophyll
Chlorophyll (also chlorophyl) is any of several related green pigments found in cyanobacteria and in the chloroplasts of algae and plants. Its name is derived from the Greek words , ("pale green") and , ("leaf"). Chlorophyll allow plants to absorb energy from light. Chlorophylls absorb light most strongly in the blue portion of the electromagnetic spectrum as well as the red portion. Conversely, it is a poor absorber of green and near-green portions of the spectrum. Hence chlorophyll-containing tissues appear green because green light, diffusively reflected by structures like cell walls, is less absorbed. Two types of chlorophyll exist in the photosystems of green plants: chlorophyll ''a'' and ''b''. History Chlorophyll was first isolated and named by Joseph Bienaimé Caventou and Pierre Joseph Pelletier in 1817. The presence of magnesium in chlorophyll was discovered in 1906, and was that element's first detection in living tissue. After initial work done by German chemi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harold Strain
Harold may refer to: People * Harold (given name), including a list of persons and fictional characters with the name * Harold (surname), surname in the English language * András Arató, known in meme culture as "Hide the Pain Harold" Arts and entertainment * ''Harold'' (film), a 2008 comedy film * ''Harold'', an 1876 poem by Alfred, Lord Tennyson * ''Harold, the Last of the Saxons'', an 1848 book by Edward Bulwer-Lytton, 1st Baron Lytton * ''Harold or the Norman Conquest'', an opera by Frederic Cowen * ''Harold'', an 1885 opera by Eduard Nápravník * Harold, a character from the cartoon ''The Grim Adventures of Billy & Mandy'' *Harold & Kumar, a US movie; Harold/Harry is the main actor in the show. Places ;In the United States * Alpine, Los Angeles County, California, an erstwhile settlement that was also known as Harold * Harold, Florida, an unincorporated community * Harold, Kentucky, an unincorporated community * Harold, Missouri, an unincorporated community ;E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Winston Manning
Winston may refer to: Places Antarctica * Winston Glacier Australia * Winston, Queensland, a suburb of the City of Mount Isa United Kingdom * Winston, County Durham, England, a village * Winston, Suffolk, England, a village and civil parish United States * Winston, Florida, a former census-designated place * Winston, Georgia, an unincorporated community * Winston, Missouri, a village * Winston, Montana, a census-designated place * Winston, New Mexico * Winston, Oregon, a city * Winston County, Alabama * Winston County, Mississippi * Winston-Salem, North Carolina People * Winston (name) Other uses *Cyclone Winston (February 2016), category 5 tropical cyclone in the South Pacific *Republic of Winston, referring to resistance in Winston County, Alabama to the Confederacy during the American Civil War * USS ''Winston'' (AKA-94), an Andromeda-class attack cargo ship *Winston (cigarette) * Winston (band), a Canadian indie pop band * Winston (horse) a horse ridden by Queen E ... [...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] |
Tetrapyrroles
Tetrapyrroles are a class of chemical compounds that contain four pyrrole or pyrrole-like rings. The pyrrole/pyrrole derivatives are linked by ( =- or -- units), in either a linear or a cyclic fashion. Pyrroles are a five-atom ring with four carbon atoms and one nitrogen atom. Tetrapyrroles are common cofactors in biochemistry and their biosynthesis and degradation feature prominently in the chemistry of life. Some tetrapyrroles form the active core of compounds with crucial biochemical roles in living systems, such as hemoglobin and chlorophyll. In these two molecules, in particular, the pyrrole macrocycle ring frames a metal atom, that forms a coordination compound with the pyrroles and plays a central role in the biochemical function of those molecules. Structure Linear tetrapyrroles (called bilanes) include: *Heme breakdown products (e.g., bilirubin, biliverdin) * Phycobilins (found in cyanobacteria) *Luciferins as found in dinoflagellates and euphausiid shrimps (krill) F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
