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Latest Nematodes Stories

2008-01-25 06:48:37

Infectious stomach flus may be gut-wrenching for us, but consider the plight of some tropical black ants: When infected by tiny nematode worms, the ants' rumps resemble a bright-red, bird-attracting berry. The parasites' strange transformative ability might help it spread to other ant colonies, scientists report in two new studies. Birds normally avoid eating the foul-tasting ants, but the berry-like temptation may be too much, said researcher Steve Yanoviak, an insect...

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2008-01-16 20:10:00

Researchers at University of California, Berkeley, have discovered the first example of fruit mimicry caused by a parasitic organism.  The parasite, a type of roundworm called a nematode, causes its host, in this case an ant, to grow a bright red abdomen that resembles the ripe berries found throughout their tropical forest environment. The researchers believe the parasite induces this dramatic effect on its hosts as a way to trick birds into eating the infected ants.  This provides...

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2007-04-20 06:26:16

BOISE, Idaho -- Federal aid is on the way to help Idaho potato growers battle a microscopic worm that was discovered in fields last year and blamed for the closure of four export markets for fresh potatoes. U.S. Agriculture Secretary Mike Johanns on Thursday approved $10.7 million in emergency funding to help growers eradicate the potato cyst nematode. The pest is not considered harmful to humans, but can shrink yields by as much as 80 percent. "This is huge for the Idaho potato industry and...

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2007-04-10 03:00:00

By Julia Stuart David Pritchard's wife thought he was barking. In the interests of science, the professor of parasite immunology agreed for a plaster bearing 50 hookworms to be stuck on to his skin. They burrowed into his flesh, crawled up his arm, travelled to his lungs and arrived in his gut, where they attached themselves and started to suck out his blood. "My wife said, 'What the hell are you doing? You've got a young family," he says. Mrs Pritchard had already had to put up with her...

2006-03-23 22:50:00

LONDON (Reuters) - Egypt is close to eliminating elephantiasis -- one of the world's most disfiguring diseases -- which has plagued the country since the time of the pharaohs, scientists said on Friday. The condition, known officially as lymphatic filariasis (LF), is caused by a microscopic parasitic worm spread by mosquitoes. It can cause devastating symptoms such as grotesquely swollen limbs, as well as fevers and pain. Yet researchers reported in the Lancet medical journal that a simple...

2005-11-11 13:59:26

Nematodes, such as the stem nematode, and fungi, such as white rot, are particularly harmful for onion crops in the Netherlands: they cause rot. Soil samples are investigated to detect this; a labour-intensive and expensive operation. Together with the Laboratory for Nematology (University of Wageningen) the company Blgg has developed a molecular technique to detect the stem nematode and white rot in soil samples. Agricultural laboratory Blgg will start using the new system in November 2005....

2005-10-11 14:10:32

An international team of researchers are calling for better public health campaigns to reduce the numbers affected by river blindness. River blindness is a disease transmitted by biting flies, affecting areas such as West Africa, Nigeria, Congo, the Central African Republic and Central and South America, and causing significant health problems for at least 18 million people. The flies carry a parasite called Onchocerca volvulus, which lays microscopic worms in the human host. The body's...

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2005-07-01 16:40:00

WEST LAFAYETTE, Ind. - Identification of soils that inhibit a tiny soybean-destroying organism is an important tool in reducing yield losses, according to a Purdue University plant pathologist. Soybean cyst nematodes cause between $800 million and $1 billion annually in crop losses in the United States, according the American Phytopathological Society. However, techniques are available to find soils that specifically suppress these microscopic roundworms, said Andreas Westphal, assistant...

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2005-06-24 14:50:00

The disease is triggered off by the bite of an infected mosquito: together with its anticoagulant the mosquito pumps threadworm larvae into its host's body. These gravitate towards the lymph nodes, where they grow into threadworms which may be up to ten centimetres long. The body reacts by producing inflammation which halts the flow of lymphatic fluid. The consequence of this is that arms, legs and genitals swell to monstrous proportions "“ hence the name elephantiasis. More than 120...

2005-06-16 11:25:00

A study of how the body expels parasitic worms has led to a surprising new discovery about the immune system that could help in the treatment of bowel cancer. Scientists investigating whipworms, parasites that infect one-fifth of the world's population as well as livestock and domestic animals, have discovered a new way that the body effectively eliminates the parasites. The University of Manchester research, published in the US journal Science, found the reason why some hosts were able to...


Latest Nematodes Reference Libraries

Nematology
2013-09-30 13:49:26

Nematology is the study of nematodes, also known as roundworms, which first began in the nineteenth century. Like many fields of study, nematology began with ancient recordings and descriptions lacked elements of modern science. The oldest record of a nematode occurs in the Pentateuch in the fourth book of Moses known as Numbers. The reference, although not plainly stating roundworms or nematodes, is thought to refer to Dracunculus medinensis, a species that is native to the area near the Red...

Trichuris suis
2014-01-12 00:00:00

Trichuris suis is a species of whipworm that is classified within the Nematoda phylum. It can be found in warm tropical regions throughout the world but is rare in arid regions. Males reach an average body length between 1.1 and 1.5 inches, while females reach an average length between 2.3 and 3.1 inches. This species, and other members of the Trichuris genus, was given its common name because of its whip like appearance. The original definitive hosts of this species are pigs, but it is able...

2014-01-12 00:00:00

Phasmarhabditis hermaphrodita is a species of roundworm that is classified within the Nematoda phylum. This species is found in soils where slug species from the Limacidae, Arionidae, and Milacidae families are located, with one common host being Deroceras reticulatum. The worm can be located in soil by using real-time PCR testing methods, a test that also distinguishes it from its similar relative, Phasmarhabditis neopapillosa. The life cycle of Phasmarhabditis hermaphrodita begins in...

Onchocerca volvulus
2014-01-12 00:00:00

Onchocerca volvulus is a species of roundworm that is classified within the Nematoda phylum. This species causes the disease onchocerciasis, more commonly known as river blindness. The life cycle of this species is dependent upon an intermediate host, typically the black fly, and a definitive host, which is always a human. Its lifecycle begins when a black fly ingests microfilariae from a human host by consuming blood. The microfilariae that were present in the skin of the human host now...

Trichinella spiralis
2014-01-12 00:00:00

Trichinella spiralis, sometimes known as the pork worm, is a parasite within the Nematoda class. It can be found in pigs, rats, humans, and bears. This worm causes trichinosis in humans, most often from consuming undercooked pork. This species is the smallest within its class, reaching an average body length of .16 centimeters. Females are twice as large as males, displaying a sexual dimorphism. The reproductive organs of females are unique to the species in that the front end holds developed...

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Word of the Day
Cthulhu
  • A gigantic fictional humanoid alien god being described with a head resembling an octopus and dragon wings and claws, around whom an insane cult developed.
  • Pertaining to the mythos of Cthulhu and additional otherworldly beings created by H. P. Lovecraft or inspired by his writings and imitators.
This word was invented in 1926 by H.P. Lovecraft for his short story, 'The Call of Cthulhu.' 'Cthulhu' may be based on the word 'chthonic,' which in Greek mythology refers to the underworld.
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