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Cucurbita Ecuadorensis
''Cucurbita ecuadorensis'' is a species of squash, described in 1965 growing wild in Ecuador. Like most wild gourds and squashes, it is creeping vine and is often found climbing over other vegetation. It has been found only in the western provinces of Guayas and Manabí. There is evidence that it was domesticated in Ecuador around 10,000 years ago, likely for its seeds, but no direct records exist and it is no longer cultivated. It is resistant to many diseases of cultivated ''Cucurbita'' species, and has been used to breed resistance to several diseases into common squashes. For example, researchers at Cornell University used ''Cucurbita ecuadorensis'' to breed resistance to papaya ringspot virus, watermelon mosaic virus, and powdery mildew, into common '' Cucurbita maxima'' cultivars. ''Cucurbita ecuadorensis'' is listed on the IUCN Red List as vulnerable, and is found protected in the Machalilla National Park Machalilla National Park ( es, Parque Nacional Machalilla) is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hugh Carson Cutler
Hugh Carson Cutler (8 September 1912, Milwaukee, Wisconsin – 12 September 1998, Topeka, Kansas) was a plant taxonomist, economic botanist, plant collector, and pioneer of paleoethnobotany. Biography Cutler graduated from the University of Wisconsin–Madison with B.A. in 1935 and M.A. in 1936 and from Washington University in St. Louis with Ph.D. in 1939. His doctoral dissertation was "Monograph of the North American species of the genus ''Ephedra''" . After completing his Ph.D. in 1939 he floated the San Juan River (Colorado River tributary) by himself from Bluff, Utah, to Mexican Hat, Utah. In 1940, Cutler and Martin Withers boated the San Juan from Shiprock, New Mexico, to Aneth, Utah. Cutler met Norman Nevills who hired Cutler to row a boat on one of the early commercial river-running trips down the Colorado River from Green River, Wyoming to Lake Mead through the Grand Canyon. Cutler worked on the boats for two weeks before the start. Due to faulty planning, oars for Cutler' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Watermelon Mosaic Virus
''Watermelon mosaic virus'' (WMV) also known as Marrow mosaic virus (Raychaudhuri and Varma, 1975; Varma, 1988), Melon mosaic virus (Iwaki et al., 1984; Komuro, 1962), and until recently Watermelon mosaic virus type 2 (WMV-2), is a plant pathogenic virus that causes viral infection (sometimes referred to as watermelon Mosaic disease) in many different plants. The virus itself is referred to as Watermelon Mosaic Virus II or WMV-2 and is an isolate of the U.S. WMV-2 is a ssRNA positive strand virus that is part of the Potyviridae or Potyvirus clade. Like all RNA viruses, it contains a protein capsid which protects the inner viral RNA. First described on squash in Florida, WMV arose from a unique recombination of genetic material contributed by '' Soybean mosaic virus (SMV)'' and ''Bean common mosaic virus (BCMV)'' along with ''Peanut Stripe virus (PSV)''. Biology WMV is a potyvirus whose particles are 760 nm long flexuous rods which has a single strand of RNA. This particular ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Squashes And Pumpkins
Squash may refer to: Sports * Squash (sport), the high-speed racquet sport also known as squash racquets * Squash (professional wrestling), an extremely one-sided match in professional wrestling * Squash tennis, a game similar to squash but played with equipment more related to that of tennis * Volley squash, a form of volleyball played within a squash court or similar sized enclosed space Food and beverages * Squash (drink), a drink made of concentrated fruit syrup or fructose * Squash (fruit), the fruit of vines of the genus ''Cucurbita'' * Tuborg Squash, a Danish orange-flavoured soft drink Other uses * ''Squash'' (film), an Academy Award-nominated short film about a squash game * SquashFS, a read-only file system * SQUASH Squash may refer to: Sports * Squash (sport), the high-speed racquet sport also known as squash racquets * Squash (professional wrestling), an extremely one-sided match in professional wrestling * Squash tennis, a game similar to squash but pla ... - ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Field Museum Of Natural History
The Field Museum of Natural History (FMNH), also known as The Field Museum, is a natural history museum in Chicago, Illinois, and is one of the largest such museums in the world. The museum is popular for the size and quality of its educational and scientific programs, and its extensive scientific-specimen and artifact collections. The permanent exhibitions, which attract up to two million visitors annually, include fossils, current cultures from around the world, and interactive programming demonstrating today's urgent conservation needs. The museum is named in honor of its first major benefactor, Marshall Field, the department-store magnate. The museum and its collections originated from the 1893 World's Columbian Exposition and the artifacts displayed at the fair. The museum maintains a temporary exhibition program of traveling shows as well as in-house produced topical exhibitions. The professional staff maintains collections of over 24 million specimens and objects tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Machalilla National Park
Machalilla National Park ( es, Parque Nacional Machalilla) is a preserve in the Ecuadorian Manabí Province near Puerto López and the rural parish of Machalilla, a small fishing village in the vicinity of the park. Established in 1979, Machalilla National Park near Puerto Lopéz rests along the Pacific coast. It incorporates beaches, fog forest, dry forest, small islands and two larger islands, Salango and Isla de la Plata, the latter named for a legendary hoard of silver left by Sir Francis Drake.Smith, JulianMachalilla National Park and Vicinity. May 1998. Accessed August 2, 2007. In 1990 the park was named an internationally important wetland under the Ramsar Convention. Wildlife includes armadillos, two species of monkeys and birds of more than 270 species.Dry Tropical Forests of Ecuador . A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vulnerable Species
A vulnerable species is a species which has been Conservation status, categorized by the International Union for Conservation of Nature as being threatened species, threatened with extinction unless the circumstances that are threatened species, threatening its survival and reproduction improve. Vulnerability is mainly caused by habitat loss or destruction of the species' home. Vulnerable habitat or species are monitored and can become increasingly threatened. Some species listed as "vulnerable" may be common in captivity (animal), captivity, an example being the military macaw. There are currently 5196 animals and 6789 plants classified as Vulnerable, compared with 1998 levels of 2815 and 3222, respectively. Practices such as cryoconservation of animal genetic resources have been enforced in efforts to conserve vulnerable breeds of livestock specifically. Criteria The International Union for Conservation of Nature uses several criteria to enter species in this category. A tax ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IUCN Red List Vulnerable Species (Plantae)
As of September 2016, the International Union for Conservation of Nature (IUCN) lists 5430 Vulnerable species, Vulnerable (VU) Plantae, plant species. 25% of all evaluated plant species are listed as Vulnerable. The IUCN also lists 244 subspecies and 235 varieties as Vulnerable. No subpopulations of plants have been evaluated by the IUCN. For a species to be assessed as vulnerable to extinction the best available evidence must meet quantitative criteria set by the IUCN designed to reflect "a high risk of extinction in the wild". ''Endangered'' and ''Critically Endangered'' species also meet the quantitative criteria of ''Vulnerable'' species, and are listed separately. See: List of endangered plants, List of critically endangered plants. Vulnerable, Endangered, and Critically Endangered species are collectively referred to as ''threatened species'' by the IUCN. Additionally 1674 plant species (7.6% of those evaluated) are listed as ''Data Deficient'', meaning there is insuffic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cucurbita Maxima
''Cucurbita maxima'', one of at least five species of cultivated squash, is one of the most diverse domesticated species. This species originated in South America from the wild subspecies ''Cucurbita maxima subsp. andreana'' over 4,000 years ago. ''Cucurbita maxima'', known for modern varieties as Hubbard, Delicious, Marblehead, Boston Marrow, and Turks Turban, originated in northern Argentina near the Andes or in certain Andean valleys. Secondary centers of diversity include India, Bangladesh, Myanmar, and the southern Appalachians. Different squash types of this species were introduced into North America as early as the 16th century. By the American Revolution, the species was in cultivation by Native American tribes throughout the present-day United States. By the early 19th century, at least three varieties are known to have been commercially introduced in North America from seeds obtained from Native Americans. Types Subspecies andreana At one time considered a separa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Powdery Mildew
Powdery mildew is a fungal disease that affects a wide range of plants. Powdery mildew diseases are caused by many different species of ascomycete fungi in the order Erysiphales. Powdery mildew is one of the easier plant diseases to identify, as its symptoms are quite distinctive. Infected plants display white powdery spots on the leaves and stems. The lower leaves are the most affected, but the mildew can appear on any above-ground part of the plant. As the disease progresses, the spots get larger and denser as large numbers of asexual spores are formed, and the mildew may spread up and down the length of the plant. Powdery mildew grows well in environments with high humidity and moderate temperatures. Greenhouses provide an ideal moist, temperate environment for the spread of the disease. This causes harm to agricultural and horticultural practices where powdery mildew may thrive in a greenhouse setting. In an agricultural or horticultural setting, the pathogen can be controlle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Papaya Ringspot Virus
''Papaya ringspot virus'' (PRSV) is a pathogenic plant virus in the genus ''Potyvirus'' and the virus family ''Potyviridae'' which primarily infects the papaya tree. The virus is a non-enveloped, flexuous rod-shaped particle that is between 760–800 nm long and 12 nm in diameter. It is transmitted between plants by mechanical activities like pruning and by numerous aphid species such as ''Myzus persicae''. No seed transmission has been detected. There are two major types of this virus that are serologically indistinguishable and are so closely genetically related that they are now considered the same virus species. The type that gave the virus its name are the Type P isolates (PRSV-P). This type infects papaya and several members of the melon family (Cucurbitaceae). The other type, Type W isolates (PRSV-W), does not infect papaya. Isolates of PRSV-W do infect cucurbits such as watermelon, cucumber, and squash and were originally known as ''Watermelon mosaic vi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas W
Thomas may refer to: People * List of people with given name Thomas * Thomas (name) * Thomas (surname) * Saint Thomas (other) * Thomas Aquinas (1225–1274) Italian Dominican friar, philosopher, and Doctor of the Church * Thomas the Apostle * Thomas (bishop of the East Angles) (fl. 640s–650s), medieval Bishop of the East Angles * Thomas (Archdeacon of Barnstaple) (fl. 1203), Archdeacon of Barnstaple * Thomas, Count of Perche (1195–1217), Count of Perche * Thomas (bishop of Finland) (1248), first known Bishop of Finland * Thomas, Earl of Mar (1330–1377), 14th-century Earl, Aberdeen, Scotland Geography Places in the United States * Thomas, Illinois * Thomas, Indiana * Thomas, Oklahoma * Thomas, Oregon * Thomas, South Dakota * Thomas, Virginia * Thomas, Washington * Thomas, West Virginia * Thomas County (other) * Thomas Township (other) Elsewhere * Thomas Glacier (Greenland) Arts, entertainment, and media * ''Thomas'' (Burton novel) 1969 nove ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cornell University
Cornell University is a private statutory land-grant research university based in Ithaca, New York. It is a member of the Ivy League. Founded in 1865 by Ezra Cornell and Andrew Dickson White, Cornell was founded with the intention to teach and make contributions in all fields of knowledge—from the classics to the sciences, and from the theoretical to the applied. These ideals, unconventional for the time, are captured in Cornell's founding principle, a popular 1868 quotation from founder Ezra Cornell: "I would found an institution where any person can find instruction in any study." Cornell is ranked among the top global universities. The university is organized into seven undergraduate colleges and seven graduate divisions at its main Ithaca campus, with each college and division defining its specific admission standards and academic programs in near autonomy. The university also administers three satellite campuses, two in New York City and one in Education City, Qatar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
