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Sierra Mixe Corn
Sierra Mixe corn is a traditional variety of maize grown in the Sierra Mixe region of Mexico, especially the town of Totontepec Villa de Morelos. It is known locally as and has been grown by indigenous farmers for thousands of years. This variety grows unusually tall—up to sixteen feet—and has aerial roots that secrete a mucus that drips around the plant. This secretion supports the growth of symbiotic bacteria that fix nitrogen and so fertilize the plant. There is commercial and scientific interest in this variety, and its genetics are being researched to develop other self-fertilizing varieties that would reduce or eliminate need for other fertilizers. A team at University of California, Davis is working on this under the auspices of the Nagoya Protocol The Nagoya Protocol on Access to Genetic Resources and the Fair and Equitable Sharing of Benefits Arising from their Utilization to the Convention on Biological Diversity, also known as the Nagoya Protocol on Access ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Journal
A journal, from the Old French ''journal'' (meaning "daily"), may refer to: *Bullet journal, a method of personal organization *Diary, a record of personal secretive thoughts and as open book to personal therapy or used to feel connected to oneself. A record of what happened over the course of a day or other period *Daybook, also known as a general journal, a daily record of financial transactions *Logbook, a record of events important to the operation of a vehicle, facility, or otherwise * Transaction log, a chronological record of data processing *Travel journal, a record of the traveller's experience during the course of their journey In publishing, ''journal'' can refer to various periodicals or serials: *Academic journal, an academic or scholarly periodical **Scientific journal, an academic journal focusing on science **Medical journal, an academic journal focusing on medicine **Law review, a professional journal focusing on legal interpretation *Magazine, non-academic or sch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Landrace
A landrace is a Domestication, domesticated, locally adapted, often traditional variety of a species of animal or plant that has developed over time, through adaptation to its natural and cultural Environment (biophysical), environment of agriculture and pastoralism, and due to isolation from other populations of the species. Landraces are distinct from cultivars and from standard breeds. A significant proportion of farmers around the world grow landrace crops, and most plant landraces are associated with traditional agricultural systems. Landraces of many crops have probably been grown for millennia. Increasing reliance upon modern plant cultivars that are bred to be uniform has led to a reduction in biodiversity, because most of the genetic diversity of domesticated plant species lies in landraces and other traditionally used varieties. Some farmers using scientifically improved varieties also continue to raise landraces for agronomic reasons that include better adaptation to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maize
Maize (; ''Zea mays''), also known as corn in North American English, is a tall stout grass that produces cereal grain. It was domesticated by indigenous peoples in southern Mexico about 9,000 years ago from wild teosinte. Native Americans planted it alongside beans and squashes in the Three Sisters polyculture. The leafy stalk of the plant gives rise to male inflorescences or tassels which produce pollen, and female inflorescences called ears. The ears yield grain, known as kernels or seeds. In modern commercial varieties, these are usually yellow or white; other varieties can be of many colors. Maize relies on humans for its propagation. Since the Columbian exchange, it has become a staple food in many parts of the world, with the total production of maize surpassing that of wheat and rice. Much maize is used for animal feed, whether as grain or as the whole plant, which can either be baled or made into the more palatable silage. Sugar-rich varieties called sw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sierra Mixe
The Sierra Mixe or Mixes District is a district in the east of the Sierra Norte Region of the Mexican state of Oaxaca. It comprises 17 municipalities A municipality is usually a single administrative division having municipal corporation, corporate status and powers of self-government or jurisdiction as granted by national and regional laws to which it is subordinate. The term ''municipality' ... and covers at an average elevation of above sea level. As of 2005 the district had a total population of 96,920. The main food crops are maize and beans, while permanent crops include coffee, lemon and oranges. Most of the inhabitants are of indigenous Mixe ethnicity, and the Mixe languages are spoken throughout the region. The western part of the region is high Sierra, with climate ranging to temperate to cold with strong winds and seasons of daily and constant rains and storms, this changes to the Mixe media territories; of lower mountain ranges but still a very abrupt and roug ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Totontepec Villa De Morelos
Totontepec Villa de Morelos (Totontepec Mixe: ''Anyukojm'') is a town and municipality, in the Sierra Mixe district of the Mexican state of Oaxaca. It is located 1,840 meters above sea level and 146 kilometers from the state capital, Oaxaca de Juárez. The toponym "Totontepec" is of Nahuatl origin, meaning "hot hill". In the local dialect of Mixe the town is called ''Anyukojm,'' meaning "place of thunder." The town The locals, called Totontepecanos, speak Mexican Spanish and the local dialect of the Mixe language. Each dialect of Mixe is different depending on the community in which it is spoken. According to the 2010 census, the town had a population of 1,801 people. The town's most notable feature is a rock that can be seen from nearly every location. In Spanish it's called "La Mitra" or "La Peña del Trueno," and in Mixe "''Anyukääts''." It is located at the top of the mountain on which Totontepec is built. The locals will scale this mountain to light prayer cand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aerial Root
Aerial roots are Root, roots growing above the ground. They are often Plant development#Adventitious structures, adventitious, i.e. formed from nonroot tissue. They are found in diverse plant species, including epiphytes such as orchids (''Orchidaceae''), tropical coastal swamp trees such as mangroves, banyan figs (''Ficus subg. Urostigma''), the warm-temperate rainforest rata (''Metrosideros robusta''), and pōhutukawa trees of New Zealand (''Metrosideros excelsa''). Vines such as common ivy (''Hedera helix'') and poison ivy (''Toxicodendron radicans'') also have aerial roots. Types This plant organ that is found in so many diverse plant-families has different specializations that suit the plant-habitat. In general growth-form, they can be technically classed as ''gravitropism, negatively gravitropic'' (grows up and away from the ground) or ''positively gravitropic'' (grows down toward the ground). "Stranglers" (prop-root) Banyan trees are an example of a strangler fig th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mucus
Mucus (, ) is a slippery aqueous secretion produced by, and covering, mucous membranes. It is typically produced from cells found in mucous glands, although it may also originate from mixed glands, which contain both Serous fluid, serous and mucous cells. It is a viscous colloid containing inorganic ions, inorganic salts, antimicrobial enzymes (such as lysozymes), Antibody, immunoglobulins (especially Immunoglobulin A, IgA), and glycoproteins such as lactoferrin and mucins, which are produced by goblet cells in the mucous membranes and submucosal glands. Mucus covers the Epithelium, epithelial cells that interact with outside environment, serves to protect the linings of the respiratory system, respiratory, Digestion#Digestive system, digestive, and Genitourinary system, urogenital systems, and structures in the Visual system, visual and auditory systems from pathogenic Fungus, fungi, bacteria and viruses. Most of the mucus in the body is produced in the gastrointestinal tract. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nitrogen Fixation
Nitrogen fixation is a chemical process by which molecular dinitrogen () is converted into ammonia (). It occurs both biologically and abiological nitrogen fixation, abiologically in chemical industry, chemical industries. Biological nitrogen fixation or ''diazotrophy'' is catalyzed by enzymes called nitrogenases. These enzyme complexes are encoded by the Nif gene, ''Nif'' genes (or ''Nif'' homologs) and contain iron, often with a second metal (usually molybdenum, but sometimes vanadium). Some nitrogen-fixing bacteria have symbiotic relationships with plants, especially legumes, mosses and aquatic ferns such as ''Azolla''. Looser non-symbiotic relationships between diazotrophs and plants are often referred to as associative, as seen in nitrogen fixation on rice roots. Nitrogen fixation occurs between some termites and fungus, fungi. It occurs naturally in the air by means of NOx, NOx production by lightning. Fixed nitrogen is essential to life on Earth. Organic compounds such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of California, Davis
The University of California, Davis (UC Davis, UCD, or Davis) is a Public university, public Land-grant university, land-grant research university in Davis, California, United States. It is the northernmost of the ten campuses of the University of California system. The institution was first founded as an Agriculture, agricultural branch of the system in 1905 and became the sixth campus of the University of California in 1959. Founded as a primarily agricultural campus, the university has expanded over the past century to include graduate and professional programs in UC Davis School of Medicine, medicine (which includes the UC Davis Medical Center), UC Davis College of Engineering, engineering, UC Davis College of Letters and Science, science, UC Davis School of Law, law, UC Davis School of Veterinary Medicine, veterinary medicine, UC Davis School of Education, education, Betty Irene Moore School of Nursing, nursing, and UC Davis Graduate School of Management, business managemen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nagoya Protocol
The Nagoya Protocol on Access to Genetic Resources and the Fair and Equitable Sharing of Benefits Arising from their Utilization to the Convention on Biological Diversity, also known as the Nagoya Protocol on Access and Benefit Sharing (ABS), is a 2010 supplementary agreement to the 1992 Convention on Biological Diversity (CBD). Its aim is the implementation of one of the three objectives of the CBD: the fair and equitable sharing of benefits arising out of the utilization of genetic resources, thereby contributing to the conservation and sustainable use of biodiversity. It sets out obligations for its contracting parties to take measures in relation to access to genetic resources, benefit-sharing and compliance. The protocol was adopted on 29 October 2010 in Nagoya, Japan, and entered into force on 12 October 2014. , it has been ratified by 137 parties, which includes 141 UN member states and the European Union. From a concrete perspective, it gives each country sovereignty righ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smithsonian Magazine
''Smithsonian'' is a magazine covering science, history, art, popular culture and innovation. The first issue was published in 1970. History The history of ''Smithsonian'' began when Edward K. Thompson, the retired editor of ''Life'' magazine, was asked by then-Secretary of the Smithsonian, S. Dillon Ripley, to produce a magazine "about things in which the Smithsonian nstitutionis interested, might be interested or ought to be interested." Thompson later recalled that his philosophy for the new magazine was that it "would stir curiosity in already receptive minds. It would deal with history as it is relevant to the present. It would present art, since true art is never dated, in the richest possible reproduction. It would peer into the future via coverage of social progress and of science and technology. Technical matters would be digested and made intelligible by skilled writers who would stimulate readers to reach upward while not turning them off with jargon. We would fin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Atlantic
''The Atlantic'' is an American magazine and multi-platform publisher based in Washington, D.C. It features articles on politics, foreign affairs, business and the economy, culture and the arts, technology, and science. It was founded in 1857 in Boston as ''The Atlantic Monthly'', a literary and cultural magazine that published leading writers' commentary on education, the abolition of slavery, and other major political issues of that time. Its founders included Francis H. Underwood and prominent writers Ralph Waldo Emerson, Oliver Wendell Holmes Sr., Henry Wadsworth Longfellow, Harriet Beecher Stowe, and John Greenleaf Whittier. James Russell Lowell was its first editor. During the 19th and 20th centuries, the magazine also published the annual ''The Atlantic Monthly Almanac''. The magazine was purchased in 1999 by businessman David G. Bradley, who fashioned it into a general editorial magazine primarily aimed at serious national readers and " thought leaders"; in 201 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
