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Maackia Amurensis
''Maackia amurensis'', commonly known as the Amur maackia, is a species of tree in the family Fabaceae that can grow 15 metres (49 ft) tall. The species epithet and common names are from the Amur River region, where the tree originated; it occurs in northeastern China, Korea, and Russia. Amur maackia tolerates severe dryness, cold and heavy soils. More interesting than the summer flowers are the unfolding buds in spring which appear silvery and showy like flowers with frost on them. Named for Richard Otto Karlovich Maack (Richard Maack), a 19th-century Siberian explorer who discovered the tree in the Amur River region on the border between Siberia and China. Chemistry The isoflavones daidzein, retusin, genistein and formononetin and the pterocarpans maackiain and medicarpin can be found in ''M. amurensis'' cell cultures. The quinolizidine alkaloids tetrahydroleontidine and 11-epileontidane have been isolated from the species (their only natural source so far).https://ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morton Arboretum
The Morton Arboretum, in Lisle, Illinois, United States, is a public garden and outdoor museum with a library, herbarium, and program in tree research including the Center for Tree Science. Its grounds, covering 1,700 acres (6.9 square kilometres), include cataloged collections of trees and other living plants, gardens, and restored areas, among which is a restored tallgrass prairie. The living collections include more than 4,100 different plant species. There are more than 200,000 cataloged plants. As a place of recreation, the Arboretum has hiking trails, roadways for driving and bicycling, a interactive children's garden and a maze. The Schulenberg Prairie at the Arboretum was one of the earliest prairie restoration projects in the Midwest, begun in 1962. It is one of the largest Prairie restoration, restored prairies in the Chicago suburban area. Three dozen cuttings from the old bur oak, burr oak that had been in Lincoln Park Zoo will be grafted onto rootstocks at the Ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quinolizidine Alkaloids
Quinolizidine alkaloids are natural products that have a quinolizidine structure; this includes the lupine alkaloids. Occurrence Quinolizidine alkaloids can be found in the plant family of legumes, especially in papilionaceous plants. While the lupine alkaloids (following their name) can be found in lupines, tinctorin, for example, was isolated from the dyer's broom. Examples More than 200 quinolizidine alkaloids are known which can be classified into 6 structural types: * the lupinine type with 34 known structures, including lupinine and its derivatives * the camoensine type with 6 known structures, including camoensin * the spartein type with 66 structures, including sparteine, lupanine, angustifoline * the α-pyridone type with 25 structures, including anagyrine and cytisine * the matrine type with 31 structures, including matrine * and the ormosanin type with 19 structures, including ormosanine. (–)-Lupinine Structural Formula V2.svg, Lupinine, (–)-lupinine (6R,7 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trees Of Korea
In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, e.g., including only woody plants with secondary growth, only plants that are usable as lumber, or only plants above a specified height. But wider definitions include taller palms, tree ferns, bananas, and bamboos. Trees are not a monophyletic taxonomic group but consist of a wide variety of plant species that have independently evolved a trunk and branches as a way to tower above other plants to compete for sunlight. The majority of tree species are angiosperms or hardwoods; of the rest, many are gymnosperms or softwoods. Trees tend to be long-lived, some trees reaching several thousand years old. Trees evolved around 400 million years ago, and it is estimated that there are around three trillion mature trees in the world currently. A tree typically has many secondary branches supported clear of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trees Of China
In botany, a tree is a perennial plant with an elongated Plant stem, stem, or trunk (botany), trunk, usually supporting Branch, branches and leaves. In some usages, the definition of a tree may be narrower, e.g., including only Bark (botany), woody plants with secondary growth, only plants that are usable as lumber, or only plants above a specified height. But wider definitions include taller Arecaceae, palms, Cyatheales, tree ferns, Musa (genus), bananas, and bamboos. Trees are not a Monophyletic group, monophyletic taxonomic group but consist of a wide variety of plant species that Convergent evolution, have independently evolved a trunk and branches as a way to tower above other plants to compete for sunlight. The majority of tree species are angiosperms or hardwoods; of the rest, many are gymnosperms or softwoods. Trees tend to be long-lived, some trees reaching several thousand years old. Trees evolved around 400 million years ago, and it is estimated that there are a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sophoreae
The tribe (biology), tribe Sophoreae is one of the subdivisions of the plant family (biology), family Fabaceae. Traditionally this tribe has been used as a wastebasket taxon to accommodate genera of Faboideae which exhibit actinomorphic, rather than zygomorphic floral symmetry and/or incompletely differentiated petals and free stamens. Various morphological and molecular phylogeny, molecular analyses indicated that Sophoreae as traditionally circumscription (taxonomy), circumscribed was polyphyly, polyphyletic. This led to a re-circumscription of Sophoreae, which resulted in the transfer of many genera to other tribes (Amburaneae, Angylocalyceae, Baphieae, Camoensieae, the Cladrastis clade, ''Cladrastis'' clade, Exostyleae, Leptolobieae, Ormosieae, Podalyrieae, and the Vataireoids). This also necessitated the inclusion of two former tribes, Euchresteae and Thermopsideae, in the new definition of Sophoreae. Tribe Sophoreae, as currently circumscribed, consistently forms a monophyly, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bozeman
Bozeman ( ) is a city in and the county seat of Gallatin County, Montana, United States. The 2020 United States census put Bozeman's population at 53,293, making it Montana's fourth-largest city. It is the principal city of the Bozeman, Montana, Metropolitan Statistical Area, consisting of all of Gallatin County, with a population of 118,960. It is the second-largest of Montana's statistical areas. History Early history For many years, indigenous people of the United States, including the Shoshone, Nez Perce, Blackfeet, Flathead, Crow Nation and Sioux traveled through the area, called the "Valley of the Flowers". The Gallatin Valley in particular, in which Bozeman is located, was primarily within the territory of the Crow people. 19th century William Clark visited the area in July 1806 as he traveled east from Three Forks along the Gallatin River. The party camped east of what is now Bozeman, at the mouth of Kelly Canyon. The journal entries from Clark's party brie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Addisonia (journal)
''Addisonia'' is an illustrated journal covering botanical and horticultural subjects, published by the New York Botanical Garden from 1916 to 1964. History ''Addisonia'' was inaugurated as the result of a bequest by judge Addison Brown, who was a co-founder of the New York Botanical Garden. The magazine was to be devoted exclusively to vascular plants from the United States and its territorial possessions or flowering in the New York Botanical Garden or its conservatories. The first editors of ''Addisonia'' were the botanist John Hendley Barnhart and George Valentine Nash, the Botanical Garden's head gardener at the time. Later editors included Henry Gleason Henry Allan Gleason (1882–1975) was an American ecologist, botanist, and taxonomist. He was known for his endorsement of the individualistic or open community concept of ecological succession, and his opposition to Frederic Clements's concept ... and Edward Johnston Alexander. Originally published as a quarterly, va ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indolizidine Alkaloids
Indolizidine alkaloids are natural products from various alkaloid groups whose structure can be derived from indolizidine. Occurrence Indolizidine alkaloids are present in various plant families, including Elaeocarpaceae, Asclepiadaceae, and are also produced as metabolites by fungi and bacteria. For instance, Slaframine and swainsonine were identified in the fungus '' Rhizoctonia leguminicola'', while Castanospermine was extracted from Castanospermum australe. Notably, this alkaloid group includes pumiliotoxins, which are the toxins of the ''strawberry poison-dart frog''. Representatives Polyhydroxy alkaloids The polyhydroxy alkaloids include compounds like castanospermine and swainsonine. (+)-Castanospermine Structural Formula V1.svg, (+)-Castanospermine (-)-Swainsonine Structural Formula V2.svg, (-)-Swainsonine Pumiliotoxins The primary alkaloids within the pumiliotoxin category are pumiliotoxin A and pumiliotoxin B. Other representatives include gephyrotoxin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medicarpin
Medicarpin is a pterocarpan, a derivative of isoflavonoids. Natural occurrences Medicarpin is found in ''Medicago truncatula'' and ''Swartzia madagascariensis''. It can also be found in ''Maackia amurensis'' cell cultures. The root nodule formation by ''Sinorhizobium meliloti'' is apparently dependent on the flavonoids pathway. Metabolism Pterocarpin synthase has 3 substrates : medicarpin, nicotinamide adenine dinucleotide phosphate, NADP+ and water, H2O, and 3 products : vestitone, nicotinamide adenine dinucleotide phosphate, NADPH and hydrogen ion, H+. References Pterocarpans Methoxy compounds {{aromatic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Franz Josef Ruprecht
Franz Josef Ruprecht (1 November 1814 – 4 April 1870) was an Austrian-born physician and botanist active in the Russian Empire, where he was known as Frants Ivanovič Ruprekht (). Life He was born in Freiburg im Breisgau, and grew up in Prague, where he studied, and graduated as Doctor of Medicine in 1836. After a short period in medical practice in Prague, he was appointed curator of the herbarium of the Russian Academy of Sciences in Saint Petersburg in 1839. In July and August 1841, together with a colleague, professor Sawelhaw of the Russian Academy, he organised and accompanied an expedition to the island to Kolguyev Island in the Barents Sea.Trevor-Battye, Aubyn. (1895). ''Ice-bound on Kolguev'', Constable, London, 1895. He served as assistant director of the Saint Petersburg Botanical Garden between 1851 and 1855, and professor of botany in 1855 at the University of Saint Petersburg.Darwin CorrespondenceFranz Josef Ruprecht/ref> He died in Saint Petersburg in 1870. H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
