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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 (6R,7S,9S,1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quinolizidine
Quinolizidine (norlupinane, octahydro-2''H''-quinolizine) is a nitrogen-containing heterocyclic compound. Some alkaloids (e.g. cytisine and sparteine) are derivatives of quinolizidine. Quinolizidine alkaloids Quinolizidine alkaloids, such as nupharine and related chemicals, can be found in ''Nymphaea lotus'' and other species in the family Nymphaeaceae. Quinolizidine alkaloids are also found in genistoid legumes A legume () is a plant in the family Fabaceae (or Leguminosae), or the fruit or seed of such a plant. When used as a dry grain, the seed is also called a pulse. Legumes are grown agriculturally, primarily for human consumption, for livestock fo .... External links * * Synthesis: {{heterocyclic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Matrine
Matrine is an alkaloid found in plants from the genus ''Sophora''. It has a variety of pharmacological effects, including anti-cancer effects, as well as κ-opioid and μ-opioid receptor agonism. Matrine possesses strong antitumor activities ''in vitro'' and ''in vivo''. Inhibition of cell proliferation and induction of apoptosis are the likely mechanisms responsible for matrine's antitumor activities. Matrine is a component of the traditional Chinese medical herb ''Sophora flavescens'' Ait. Mu opioid agonism is associated with euphoria, while kappa opioid agonism is associated with dysphoria and psychotomimetic hallucinations (as seen in the kappa-agonist Salvinorin A). Both receptors are known to produce analgesia when activated. Matrine and the related compound oxymatrine have an antifeedant effect against formosan subterranean termite. Additionally, it acts as a nematicide against the pine wood nematode which causes pine wilt ''Bursaphelenchus xylophilus'', commonly kno ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frontiers Media
Frontiers Media SA is a publisher of peer-reviewed, open access, scientific journals currently active in science, technology, and medicine. It was founded in 2007 by Kamila and Henry Markram, and has since expanded to other academic fields. Frontiers is based in Lausanne, Switzerland, with other offices in London, Madrid, Seattle and Brussels. In 2022, Frontiers employed more than 1,400 people, across 14 countries. All Frontiers journals are published under a Creative Commons Attribution License. As of 2022, Frontiers publishes over 185 academic journals, including 48 journals indexed within the Science Citation Index Expanded, and 4 journals indexed within the Social Sciences Citation Index, with a total of 51 journals ranked with an impact factor. Frontiers journals are included in the Directory of Open Access Journals (DOAJ). Frontiers is also a member of the Open Access Scholarly Publishers Association (OASPA), a participating publisher and supporter of the Initiative for O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frontiers In Plant Science
''Frontiers in Plant Science'' is a peer-reviewed scientific journal covering all aspects of botany. It was established in 2010 and is published by Frontiers Media. The editor-in-chief is Yunde Zhao (University of California, San Diego). Abstracting and indexing Since 2019, the journal has a score of 2 in the Norwegian Scientific Index, which "covers the most prestigious and rigorous channels, which publish 20 percent of the publications". According to the Frontiers, the journal Frontiers in Plant Science 2021 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric index calculated by Clarivate that reflects the yearly mean number of citations of articles published in the last two years in a given journal, as ... is 6.627. References External links * {{Official website, https://www.frontiersin.org/journals/plant-science Publications established in 2010 English-language journals Botany journals Frontiers Med ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amsterdam
Amsterdam ( , , , lit. ''The Dam on the River Amstel'') is the Capital of the Netherlands, capital and Municipalities of the Netherlands, most populous city of the Netherlands, with The Hague being the seat of government. It has a population of 907,976 within the city proper, 1,558,755 in the City Region of Amsterdam, urban area and 2,480,394 in the Amsterdam metropolitan area, metropolitan area. Located in the Provinces of the Netherlands, Dutch province of North Holland, Amsterdam is colloquially referred to as the "Venice of the North", for its large number of canals, now designated a World Heritage Site, UNESCO World Heritage Site. Amsterdam was founded at the mouth of the Amstel River that was dammed to control flooding; the city's name derives from the Amstel dam. Originally a small fishing village in the late 12th century, Amsterdam became a major world port during the Dutch Golden Age of the 17th century, when the Netherlands was an economic powerhouse. Amsterdam is th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elsevier
Elsevier () is a Dutch academic publishing company specializing in scientific, technical, and medical content. Its products include journals such as ''The Lancet'', ''Cell'', the ScienceDirect collection of electronic journals, '' Trends'', the '' Current Opinion'' series, the online citation database Scopus, the SciVal tool for measuring research performance, the ClinicalKey search engine for clinicians, and the ClinicalPath evidence-based cancer care service. Elsevier's products and services also include digital tools for data management, instruction, research analytics and assessment. Elsevier is part of the RELX Group (known until 2015 as Reed Elsevier), a publicly traded company. According to RELX reports, in 2021 Elsevier published more than 600,000 articles annually in over 2,700 journals; as of 2018 its archives contained over 17 million documents and 40,000 e-books, with over one billion annual downloads. Researchers have criticized Elsevier for its high profit marg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Union Of Food Science And Technology
The International Union of Food Science and Technology (IUFoST) ( ) is the global scientific organization and voice for food science and technology representing more than 300,000 food scientists, engineers and technologists through its work in more than 100 countries. It is a voluntary, non-profit association of national food science organizations. IUFoST is the only elected scientific representative of Food Science and Technology in the International Science Council (ISC), elected by its peers across scientific disciplines. It is the only global representative of food science and technology to notable organizations such as the World Health Organization (WHO), Food and Agriculture Organization (FAO) of the United Nations, United Nations Development Programme and (UNDP), CODEX Alimentarius. Background The feasibility of establishing an international organization of food scientists and technologists dedicated to the nutritional needs of the people of the world was informally explo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
European Federation Of Food Science And Technology
The European Federation of Food Science and Technology (EFFoST) is a European-based non-governmental organization devoted to the advancement of food science and technology. It consists of eighty different societies in 21 different European countries. They are a regional group of the International Union of Food Science and Technology. EFFoST's roles # Increase closer contacts among the academic, government, and industrial areas in food. # Enhance rapid technology transfer to increase economic competitiveness in Europe. # Promote continuing education within food science and technology. # Standardize food law and its enforcement throughout Europe. # Maintain collaborative relationships within the European food industry on Knowledge sharing. Publications *''Innovative Food Science and Emerging Technologies (ISFET)'', the official scientific journal of EFFoST. *'' Trends in Food Science and Technology (TIFS)'', a mini peer-review scientific journal that is more involved in product ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trends In Food Science And Technology
''Trends in Food Science and Technology'' is a monthly peer-reviewed review journal covering food science and technology. It is an official publication of the European Federation of Food Science and Technology and of the International Union of Food Science and Technology. The editors-in-chief are Rickey Yada and Fidel Todra (Institute of Food Research). Abstracting an indexing The journal is abstracted and indexed in: According to the ''Journal Citation Reports'', the journal has a 2021 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric index calculated by Clarivate that reflects the yearly mean number of citations of articles published in the last two years in a given journal, as ... of 12.563. References External links * Elsevier academic journals English-language journals Food science journals Monthly journals Publications established in 1990 {{sci-journal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plant Breeding
Plant breeding is the science of changing the traits of plants in order to produce desired characteristics. It has been used to improve the quality of nutrition in products for humans and animals. The goals of plant breeding are to produce crop varieties that boast unique and superior traits for a variety of applications. The most frequently addressed agricultural traits are those related to biotic and abiotic stress tolerance, grain or biomass yield, end-use quality characteristics such as taste or the concentrations of specific biological molecules (proteins, sugars, lipids, vitamins, fibers) and ease of processing (harvesting, milling, baking, malting, blending, etc.). Plant breeding can be performed through many different techniques ranging from simply selecting plants with desirable characteristics for propagation, to methods that make use of knowledge of genetics and chromosomes, to more complex molecular techniques. Genes in a plant are what determine what type of qualit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plant Disease
Plant pathology (also phytopathology) is the scientific study of diseases in plants caused by pathogens (infectious organisms) and environmental conditions (physiological factors). Organisms that cause infectious disease include fungi, oomycetes, bacteria, viruses, viroids, virus-like organisms, phytoplasmas, protozoa, nematodes and parasitic plants. Not included are ectoparasites like insects, mites, vertebrate, or other pests that affect plant health by eating plant tissues. Plant pathology also involves the study of pathogen identification, disease etiology, disease cycles, economic impact, plant disease epidemiology, plant disease resistance, how plant diseases affect humans and animals, pathosystem genetics, and management of plant diseases. Overview Control of plant diseases is crucial to the reliable production of food, and it provides significant problems in agricultural use of land, water, fuel and other inputs. Plants in both natural and cultivated population ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pest (organism)
A pest is any animal or plant harmful to humans or human concerns. The term is particularly used for creatures that damage crops, livestock, and forestry or cause a nuisance to people, especially in their homes. Humans have modified the environment for their own purposes and are intolerant of other creatures occupying the same space when their activities impact adversely on human objectives. Thus, an elephant is unobjectionable in its natural habitat but a pest when it tramples crops. Some animals are disliked because they bite or sting; snake Snakes are elongated, Limbless vertebrate, limbless, carnivore, carnivorous reptiles of the suborder Serpentes . Like all other Squamata, squamates, snakes are ectothermic, amniote vertebrates covered in overlapping Scale (zoology), scales. Ma ...s, wasps, ants, bed bugs, fleas and ticks belong in this category. Others enter the home; these include houseflies, which land on and contaminate food, beetles, which tunnel into the woodwor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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