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Amphilophium Crucigerum
''Amphilophium crucigerum'' is a species of flowering plant in the family Bignoniaceae, native from Mexico through Central America into South America as far south as Argentina. It was first described by Carl Linnaeus (as ''Bignonia crucigera'') in 1753. The synonym ''Pithecoctenium crucigerum'' has often been used. The species has become an invasive weed in Australia. Chemical investigation of methanol extracted from this species yielded the iridoid glycoside theviridoside along with five phenylethanoid glycosides (verbascoside, isoverbascoside, forsythoside B Forsythoside B is a natural product from the phenylpropanoid glycoside group, which is found in a number of plant species such as '' Marrubium alysson'', ''Phlomis armeniaca'', '' Scutellaria salviifolia'', ''Phlomoides tuberosa'', ''Phlomoides ro ..., jionoside D and leucosceptoside B), these last all active against DPPH. References Bignoniaceae Flora of Mexico Flora of Central America Flora of South Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can reproduction, produce Fertility, fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology (biology), morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a binomial nomenclature, two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specifi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Central America
Flora (: floras or florae) is all the plant life present in a particular region or time, generally the naturally occurring ( indigenous) native plants. The corresponding term for animals is ''fauna'', and for fungi, it is '' funga''. Sometimes bacteria and fungi are also referred to as flora as in the terms ''gut flora'' or ''skin flora''. Etymology The word "flora" comes from the Latin name of Flora, the goddess of plants, flowers, and fertility in Roman mythology. The technical term "flora" is then derived from a metonymy of this goddess at the end of the sixteenth century. It was first used in poetry to denote the natural vegetation of an area, but soon also assumed the meaning of a work cataloguing such vegetation. Moreover, "Flora" was used to refer to the flowers of an artificial garden in the seventeenth century. The distinction between vegetation (the general appearance of a community) and flora (the taxonomic composition of a community) was first made by Jules Thurma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Mexico
Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatemala, Belize, and the Caribbean Sea; and to the east by the Gulf of Mexico. Mexico covers ,Mexico ''''. . making it the world's 13th-largest country ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Botanic Gardens, Kew
Royal Botanic Gardens, Kew is a non-departmental public body in the United Kingdom sponsored by the Department for Environment, Food and Rural Affairs. An internationally important botanical research and education institution, it employs 1,100 staff. Its board of trustees is chaired by Dame Amelia Fawcett. The organisation manages botanic gardens at Kew in Richmond upon Thames in south-west London, and at Wakehurst, a National Trust property in Sussex which is home to the internationally important Millennium Seed Bank, whose scientists work with partner organisations in more than 95 countries. Kew, jointly with the Forestry Commission, founded Bedgebury National Pinetum in Kent in 1923, specialising in growing conifers. In 1994, the Castle Howard Arboretum Trust, which runs the Yorkshire Arboretum, was formed as a partnership between Kew and the Castle Howard Estate. In 2019, the organisation had 2,316,699 public visitors at Kew, and 312,813 at Wakehurst. Its site ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plants Of The World Online
Plants of the World Online (POWO) is an online database published by the Royal Botanic Gardens, Kew. It was launched in March 2017 with the ultimate aim being "to enable users to access information on all the world's known seed-bearing plants by 2020". The initial focus was on tropical African Floras, particularly Flora Zambesiaca, Flora of West Tropical Africa and Flora of Tropical East Africa. The database uses the same taxonomical source as Kew's World Checklist of Selected Plant Families, which is the International Plant Names Index, and the World Checklist of Vascular Plants (WCVP). POWO contains 1,234,000 global plant names and 367,600 images. See also *Australian Plant Name Index The Australian Plant Name Index (APNI) is an online database of all published names of Australian vascular plants. It covers all names, whether current names, synonyms or invalid names. It includes bibliographic and typification details, informati ... * Convention on Biological Diversity * W ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Plant Names Index
The International Plant Names Index (IPNI) describes itself as "a database of the names and associated basic bibliographical details of seed plants, ferns and lycophytes." Coverage of plant names is best at the rank of species and genus. It includes basic bibliographical details associated with the names. Its goals include eliminating the need for repeated reference to primary sources for basic bibliographic information about plant names. The IPNI also maintains a list of standardized author abbreviations. These were initially based on Brummitt & Powell (1992), but new names and abbreviations are continually added. Description IPNI is the product of a collaboration between The Royal Botanic Gardens, Kew ( Index Kewensis), The Harvard University Herbaria (Gray Herbarium Index), and the Australian National Herbarium ( APNI). The IPNI database is a collection of the names registered by the three cooperating institutions and they work towards standardizing the information. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DPPH
DPPH is a common abbreviation for the organic chemical compound 2,2-diphenyl-1-picrylhydrazyl. It is a dark-colored crystalline powder composed of stable free radical molecules. DPPH has two major applications, both in laboratory research: one is a monitor of chemical reactions involving radicals, most notably it is a common antioxidant assay, and another is a standard of the position and intensity of electron paramagnetic resonance signals. Properties and applications DPPH has several crystalline forms which differ by the lattice symmetry and melting point. The commercial powder is a mixture of phases which melts at ~130 °C. DPPH-I (m.p. 106 °C) is orthorhombic, DPPH-II (m.p. 137 °C) is amorphous and DPPH-III (m.p. 128–129 °C) is triclinic. DPPH is a well-known radical and a trap ("scavenger") for other radicals. Therefore, rate reduction of a chemical reaction upon addition of DPPH is used as an indicator of the radical nature of that r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forsythoside B
Forsythoside B is a natural product from the phenylpropanoid glycoside group, which is found in a number of plant species such as ''Marrubium alysson'', ''Phlomis armeniaca'', '' Scutellaria salviifolia'', '' Phlomoides tuberosa'', '' Phlomoides rotata'', '' Pedicularis longiflora'' and '' Teucrium chamaedrys'', several of which are used in Chinese traditional medicine in preparations such as Shuanghuanglian (双黄连). It acts as an inhibitor of inflammatory mediators such as TNF-alpha, IL-6, IκB and NF-κB, as well as the temperature sensitive channel TRPV3, but also activates the RhoA/ ROCK signaling pathway which can cause hypersensitivity reactions when it is injected intravenously. See also * Xiyanping Xiyanping (喜炎平) is an anti-inflammatory and antiviral preparation developed and licensed for use in China. It is a semi-synthetic injectable product derived from the active component of the plant ''Andrographis paniculata'' (Chuan Xin Li ... References {{R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Verbascoside
Verbascoside is a caffeoyl phenylethanoid glycoside in which the phenylpropanoid caffeic acid and the phenylethanoid hydroxytyrosol form an ester and an ether bond respectively, to the rhamnose part of a disaccharide, namely β-(3′,4′-dihydroxyphenyl)ethyl-O-α-L-rhamnopyranosyl(1→3)-β-D-(4-O-caffeoyl)-glucopyranoside. Occurrences Natural occurrences Verbascoside can be found in species in all the families of the order Lamiales (syn. Scrophulariales). Only two examples are known from outside the order, in the clade Asterids. ; in the Lamiales In the family Lamiaceae, it can be found in the medicinal plants in the genus '' Phlomis'', in the Scrophulariaceae, in '' Verbascum phlomoides'', '' Verbascum mallophorum'', or, in the family Buddlejaceae, in '' Buddleja globosa'' or ''Buddleja cordata'', in the family Bignoniaceae, in '' Pithecoctenium sp'' and '' Tynanthus panurensis'', in the family Orobanchaceae, in ''Cistanche sp'' and ''Orobanche rapum-genistae'', in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
