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FlavrSavr
Flavr Savr (also known as CGN-89564-2; pronounced "flavor saver"), a genetically modified tomato, was the first commercially grown genetically engineered food to be granted a license for human consumption. It was developed by the Californian company Calgene in the 1980s. The tomato has an improved shelf-life, increased fungal resistance and a slightly increased viscosity compared to its non-modified counterpart. It was meant to be harvested ripe for increased flavor for long-distance shipping. The Flavr Savr contains two genes added by Calgene; a reversed antisense polygalacturonase gene which inhibits the production of the aforementioned rotting enzyme and a gene responsible for the creation of APH(3')II, which confers resistance to certain aminoglycoside antibiotics including kanamycin and neomycin. On May 18, 1994, the FDA completed its evaluation of the Flavr Savr tomato and the use of APH(3')II, concluding that the tomato "is as safe as tomatoes bred by conventional means" and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genetically Modified Tomato
A genetically modified tomato, or transgenic tomato, is a tomato that has had its genes modified, using genetic engineering. The first trial genetically modified food was a tomato engineered to have a longer shelf life (the Flavr Savr), which was on the market briefly beginning on May 21, 1994. The first direct consumption tomato was approved in Japan in 2021. Primary work is focused on developing tomatoes with new traits like increased resistance to pests or environmental stresses. Other projects aim to enrich tomatoes with substances that may offer health benefits or be more nutritious. As well as aiming to produce novel crops, scientists produce genetically modified tomatoes to understand the function of genes naturally present in tomatoes. Wild tomatoes are small, green and largely unappetizing, but after centuries of breeding there are now thousands of varieties grown worldwide. Agrobacterium-mediated genetic engineering techniques were developed in the late 1980s th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Decomposition
Decomposition or rot is the process by which dead organic substances are broken down into simpler organic or inorganic matter such as carbon dioxide, water, simple sugars and mineral salts. The process is a part of the nutrient cycle and is essential for recycling the finite matter that occupies physical space in the biosphere. Bodies of living organisms begin to decompose shortly after death. Animals, such as worms, also help decompose the organic materials. Organisms that do this are known as decomposers or detritivores. Although no two organisms decompose in the same way, they all undergo the same sequential stages of decomposition. The science which studies decomposition is generally referred to as ''taphonomy'' from the Greek word ''taphos'', meaning tomb. Decomposition can also be a gradual process for organisms that have extended periods of dormancy. One can differentiate abiotic decomposition from biotic decomposition (biodegradation). The former means "the degradation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sainsbury's
J Sainsbury plc, trading as Sainsbury's, is the second largest chain of supermarkets in the United Kingdom, with a 14.6% share of UK supermarket sales. Founded in 1869 by John James Sainsbury with a shop in Drury Lane, London, the company was the largest UK retailer of groceries for most of the 20th century. In 1995, Tesco became the market leader when it overtook Sainsbury's, which has since been ranked second or third: it was overtaken by Asda from 2003 to 2014, and again in 2019. In 2018, a planned merger with Asda was blocked by the Competition and Markets Authority over concerns of increased prices for consumers. The holding company, J Sainsbury plc, is split into three divisions: Sainsbury's Supermarkets Ltd ( including convenience shops), Sainsbury's Bank, and Argos. As of 2021, the largest overall shareholder is the sovereign wealth fund of Qatar, the Qatar Investment Authority, which holds 14.99% of the company. It is listed on the London Stock Exchange and is a cons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Supermarket
A supermarket is a self-service Retail#Types of outlets, shop offering a wide variety of food, Drink, beverages and Household goods, household products, organized into sections. This kind of store is larger and has a wider selection than earlier grocery stores, but is smaller and more limited in the range of merchandise than a hypermarket or Big-box store, big-box market. In everyday United States, U.S. usage, however, "grocery store" is synonymous with supermarket, and is not used to refer to other types of stores that sell groceries. The supermarket typically has places for fresh meat, fresh produce, dairy, Delicatessen, deli items, baked goods, etc. Shelf space is also reserved for canned and packaged goods and for various non-food items such as kitchenware, household cleaners, pharmacy products and pet supplies. Some supermarkets also sell other household products that are consumed regularly, such as alcohol (where permitted), medicine, and clothing, and some sell a much w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Don Grierson (geneticist)
Don Grierson (born 1 October 1945) is a British geneticist, and Emeritus Professor at University of Nottingham. Education Grierson graduated from the University of East Anglia with a degree in Biological Sciences in 1967, after working for a short time in an industrial research lab, he obtained his PhD in Plant Science from the University of Edinburgh in 1972 for research on ribosomal ribonucleic acid in developing primary leaves of the mung bean '' Phaseolus aureus'' supervised by Ulrich Loening. Career and research Grierson was a member of academic staff at University of Nottingham for over 40 years where he was awarded a Doctor of Science (DSc) degree in 1999. He was the founding professor of the School of Biosciences before becoming Pro-Vice-Chancellor for Research. Grierson discovered several plant genes and studied their role in tomato ripening. He also was the first to identify and characterise genes for ACC oxidase (ACO) and demonstrated its role in the syn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zeneca
Zeneca (officially Zeneca Group PLC) was a British multinational pharmaceutical company headquartered in London, United Kingdom. It was formed in June 1993 by the demerger of the pharmaceuticals and agrochemicals businesses of Imperial Chemical Industries into a separate company listed on the London Stock Exchange. In 1999, Zeneca and the Sweden-based pharmaceutical company Astra AB merged to form AstraZeneca plc. Zeneca's largest therapeutic area was oncology, in which its key products included Casodex, Nolvadex and Zoladex. Other key products included heart drug Tenormin. Name "Zeneca" was an invented name created by the branding consultancy Interbrand. Interbrand had been instructed to find a name which began with a letter from either the top or bottom of the alphabet and was phonetically memorable, of no more than three syllables and did not have an offensive meaning in any language. History In December 1994, Zeneca agreed the acquisition of 50% of Salick Health Care, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monsanto
The Monsanto Company () was an American agrochemical and agricultural biotechnology corporation founded in 1901 and headquartered in Creve Coeur, Missouri. Monsanto's best known product is Roundup, a glyphosate-based herbicide, developed in the 1970s. Later the company became a major producer of genetically engineered crops. In 2018, the company ranked 199th on the Fortune 500 of the largest United States corporations by revenue. Monsanto was one of four groups to introduce genes into plants in 1983, and was among the first to conduct field trials of genetically modified crops in 1987. It was one of the top 10 US chemical companies until it divested most of its chemical businesses between 1997 and 2002, through a process of mergers and spin-offs that focused the company on biotechnology. Monsanto was one of the first companies to apply the biotechnology industry business model to agriculture, using techniques developed by biotech drug companies. In this business model, compani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jeremy Rifkin
Jeremy Rifkin (born January 26, 1945) is an American economic and social theorist, writer, public speaker, political advisor, and activist. Rifkin is the author of 23 books about the impact of scientific and technological changes on the economy, the workforce, society, and the environment. His most recent books include ''The Age of Resilience'' (2022), ''The Green New Deal'' (2019), ''The Zero Marginal Cost Society'' (2014), '' The Third Industrial Revolution'' (2011), '' The Empathic Civilization'' (2010), and '' The European Dream'' (2004). Rifkin is the principal architect of the "Third Industrial Revolution" long-term economic sustainability plan to address the triple challenge of the global economic crisis, energy security, and climate change. The Third Industrial Revolution (TIR) was formally endorsed by the European Parliament in 2007. ''The Huffington Post'' reported from Beijing in October 2015 that "Chinese Premier Li Keqiang has not only read Jeremy Rifkin's book, ''T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chloroplast
A chloroplast () is a type of membrane-bound organelle known as a plastid that conducts photosynthesis mostly in plant and algal cells. The photosynthetic pigment chlorophyll captures the energy from sunlight, converts it, and stores it in the energy-storage molecules ATP and NADPH while freeing oxygen from water in the cells. The ATP and NADPH is then used to make organic molecules from carbon dioxide in a process known as the Calvin cycle. Chloroplasts carry out a number of other functions, including fatty acid synthesis, amino acid synthesis, and the immune response in plants. The number of chloroplasts per cell varies from one, in unicellular algae, up to 100 in plants like ''Arabidopsis'' and wheat. A chloroplast is characterized by its two membranes and a high concentration of chlorophyll. Other plastid types, such as the leucoplast and the chromoplast, contain little chlorophyll and do not carry out photosynthesis. Chloroplasts are highly dynamic—they circulat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fungal
A fungus ( : fungi or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organisms are classified as a kingdom, separately from the other eukaryotic kingdoms, which by one traditional classification include Plantae, Animalia, Protozoa, and Chromista. A characteristic that places fungi in a different kingdom from plants, bacteria, and some protists is chitin in their cell walls. Fungi, like animals, are heterotrophs; they acquire their food by absorbing dissolved molecules, typically by secreting digestive enzymes into their environment. Fungi do not photosynthesize. Growth is their means of mobility, except for spores (a few of which are flagellated), which may travel through the air or water. Fungi are the principal decomposers in ecological systems. These and other differences place fungi in a single group of related organisms, named the ''Eumycota'' (''true ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plant Cell Wall
A cell wall is a structural layer surrounding some types of cells, just outside the cell membrane. It can be tough, flexible, and sometimes rigid. It provides the cell with both structural support and protection, and also acts as a filtering mechanism. Cell walls are absent in many eukaryotes, including animals, but are present in some other ones like fungi, algae and plants, and in most prokaryotes (except mollicute bacteria). A major function is to act as pressure vessels, preventing over-expansion of the cell when water enters. The composition of cell walls varies between taxonomic group and species and may depend on cell type and developmental stage. The primary cell wall of land plants is composed of the polysaccharides cellulose, hemicelluloses and pectin. Often, other polymers such as lignin, suberin or cutin are anchored to or embedded in plant cell walls. Algae possess cell walls made of glycoproteins and polysaccharides such as carrageenan and agar that are absent from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pectin
Pectin ( grc, πηκτικός ': "congealed" and "curdled") is a heteropolysaccharide, a structural acid contained in the primary lamella, in the middle lamella, and in the cell walls of terrestrial plants. The principal, chemical component of pectin is galacturonic acid (a sugar acid derived from galactose) which was isolated and described by Henri Braconnot in 1825. Commercially produced pectin is a white-to-light-brown powder, produced from citrus fruits for use as an edible gelling agent, especially in jams and jellies, dessert fillings, medications, and sweets; and as a chemical stabiliser in fruit juices and milk drinks, and as a source of dietary fiber. Biology Pectin is composed of complex polysaccharides that are present in the primary cell walls of a plant, and are abundant in the green parts of terrestrial plants. Pectin is the principal component of the middle lamella, where it binds cells. Pectin is deposited by exocytosis into the cell wall via vesicles produc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
