Sentences with phrase «nematodes find»

These microscopic Beneficial Nematodes find and destroy flea larvae, white grubs, gypsy moth larvae and many other pests.

T. gulosa is a nematode found in North America, Europe, Australia and central Asia.

Not exact matches

These nematodes are the only multi-cellular organisms ever found at depths of 2.2 miles under the surface.

Most significantly, they found that it is resistant to root - knot nematode, a pest that can destroy certain plants and crops.

When potato cyst nematode was found in Idaho, several countries shut their borders to Idaho potato exports, Muir said.

Access was revoked in 2006 soon after the Japanese market opened for the first time for U.S. potatoes when the pale potato cyst nematode was found in Idaho.

This nematode has about 1,000 cells, so it's not exactly a big guy, but still — I never would have expected to find it so deep.

Finding a second selfish element in the nematode, he says, suggests that these may not be as rare in animals as people have thought.

In their study, which has just been published in the journal PNAS, the researchers demonstrate that the defence protein docks on to a specific target in the nematode: a modified sugar found on the surfaces of the worm's intestinal cells but also on those of molluscs like snails.

The symbiotic relationship, they found, could represent an Achilles» heel for the nematodes.

If paleontologists encounter vascular channels in dinosaur fossils, they might also find nematodes, or roundworms, that lived off the animals» internal organs.

In a new study, Murphy, a molecular biologist at Princeton University, showed that long - lived bodily, or somatic, cells in Caenorhabditis elegans, a one - millimeter nematode commonly used as a model for aging studies in labs, activate genetic pathways completely separate from those found in long - lived egg, or oocyte, cells.

When Gordon Lithgow at the Buck Institute for Research on Aging in Novato, California, and colleagues grew the soil - dwelling nematode Caenorhabditis elegans in agar plates soaked in thioflavin T — a dye used to visualise clusters of amyloid beta protein — they found that the worms lived 30 to 70 per cent longer than average.

Given what the team found, Andriuzzi said it will take time for the nematode community to recover from these disturbances.

Called odilorhabdins, or ODLs, the antibiotics are produced by symbiotic bacteria found in soil - dwelling nematode worms that colonize insects for food.

They also found four tapeworm species (cestodes), eight roundworm species (nematodes) as well as one fluke species (trematode).

Until now, scientists were unable to prove that mammals use RNAi for killing viruses, but ironically, it was Ding's earlier research into plants, nematodes and fruit flies that helped him find the key: viruses have been outwitting that innate protection in our cells by using proteins to suppress our virus - killing mechanism.

«We found nine different nematode - killing metabolites in Yangambi km5.

So far, scientists have named some 210,000 marine species, but up to 10 times more may remain undiscovered — including perhaps a million kinds of nematodes, microworms found around the world.

Cutting calories from the diets of mice, fruit flies, nematode worms and yeast led all of the organisms to produce more hydrogen sulfide, Mitchell and colleagues found.

In making this connection, Canadian biologist Siegfried Hekimi and his colleagues at McGill University in Montréal, Québec, looked at clk -1-mutant nematodes and found that they develop, eat, defecate, and even move at a more relaxed pace than their normal counterparts.

A group of plant scientists, led by University of Missouri researchers, recently found one of the mechanisms cyst nematodes use to invade and drain life - sustaining nutrients from soybean plants.

Now, Mitchum's team is trying to find how this key gene might work differently in other nematode types, like root - knot nematode as part of a new National Science Foundation grant.

A final experiment used a mutant that created an excess of an enzyme that degrades cytokinin, finding that a base level of plant cytokinin was also necessary for nematode growth.

They found that the nematode peptides triggered a growth response in Arabidopsis much in the same way as the plants» own peptides affected development.

The findings indicate that tardigrades are more closely related to nematodes, despite their outward arthropod - like appearance.

An intriguing finding in nematode worms suggests that having a little bit of extra fat may help reduce the risk of developing some neurodegenerative diseases, such as Huntington's, Parkinson's and Alzheimer's diseases.

According to Richard Durbin, who leads the project's informatics team, computer techniques seem to find most of the genes sequenced so far but frequently missed some pieces of them, particularly the short coding regions that occur at the beginning of many nematode genes.

The genome shares about 60 % of its genes with the other invertebrates completely sequenced, such as the nematode and fruit fly, whereas about 5 % match sequences found only — up to now, at least — in the human, mouse, and puffer fish genomes.

The added soil made the existing land richer — as the researchers found more nematode worms, more bacteria, and more fungi in those sections of the plots.

The finding hinted that genes affecting longevity in the nematode might hold relevance for humans, too.

This in turn should help geneticists work out the functions of human genes, many of which are likely to have sequences similar to those found in the nematode.

Now Belgian biologist Gaetan Borgonie has discovered a new species of nematode in a rock fracture nearly a mile underground, where no other animal has ever been found.

Matriphagy, or mother - eating, is found in some species of insects, scorpions, nematode worms and spiders.

In his own lab, he is raising nematodes on soil enriched with different types of produce — sugary versus fibrous, for example — and finds that no matter what the food source and the resulting environmental microbial diversity, worms have similar sets of bacteria in their guts.

Bik said an unexpected and interesting finding was the previously undiscovered association between nematodes and several parasites, including slime molds that have been reported as parasites of other marine invertebrates.

Now a group led by David Gems at University College London has found that nematode worms and fruit flies genetically modified to have more of key sirtuins owe their longevity to unrelated genetic factors.

Another finding was the frequent association between nematodes and bacteria that play important roles in nutrient cycling, an essential ecological process for life on Earth.

There have been several recent reports of life at great depths, with nematode worms found living 3 kilometres down in a gold mine, for instance.

Now researchers have found that at least one of these genes also functions in nematodes.

The researchers found DNA «fossils» of parasitic nematodes in seven groups of birds (clockwise): trogons, mesites, parrots, hummingbirds, hornbills, manakins, tinamous.

During this study, M. mali was tested on some more plant species which were found to be hosts to this nematode species.

Maures et al. (p. 541, published online 29 November) explored why the presence of abundant mating - competent males causes a decrease in the life span of nematodes of the opposite sex and found that a secreted substance, possibly a pheromone, reproduced the effect of the males when transferred in the culture medium.

To find out, Leifer and his collaborators genetically engineered the one - millimeter - long nematode worm to make particular cells in its body sensitive to light, a technique called optogenetics, developed in recent years by Stanford University psychiatrist and bioengineer Karl Deisseroth [see Deisseroth's «Controlling the Brain with Light,» Scientific American, November 2010].

So he contacted Gaetan Borgonie, a nematologist at Ghent University in Belgium, who collected and filtered tens of thousands of liters of water samples from five mines in the area to find the rare creatures, which belong to the worm group called nematodes.

In the other study, Anne Brunet, a geneticist at Stanford University in Palo Alto, California, and colleagues found that in nematodes, the mere trace of one sex also seems to reduce the survival of the other.

Now, two new studies using more exacting methods found that Bt crops have no negative effects on two beneficial insect predators or on a beneficial entomopathogenic nematode.

For example, the researchers found several molecules that tell nematodes to scatter and disperse.

Proving their hunch, the researchers found ascarosides in the secretions of every nematode they examined, and a few subsequent experiments showed that the small compounds also acted as signaling molecules in the species» they investigated.

As one of the three initial cores established when the Buck Institute was founded, the Genomics Core has played a vital role in helping shape investigations in the basic molecular biology of aging, from assisting in the investigation of how specific drugs can extend lifespan in simple model organisms such as the nematode C. elegans, to facilitating studies in various animal models of age - related disease.