Sentences with phrase «nematodes use»

Now, researchers have discovered a class of small molecules that all nematodes use to signal such processes as growing, developing, mating and moving toward or away from an area.

«What we understand now is that nematodes use complex messages that consist of molecules put together in a modular fashion,» explained Schroeder.

«Nematodes use the spit to transform the host cell into a nutrient sink from which they feed on during their entire life cycle.

If we can block those peptides and the pathways nematodes use to overtake the soybean plant, then we can enhance resistance for this very valuable global food source.»

«Advanced sequencing showed us that nematodes use identical peptides to activate the same process.

We wanted to explore the pathways and mechanisms cyst nematodes use to commandeer soybean plants.»

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.

About 15 years ago, Mitchum and colleagues unlocked clues into how nematodes use small chains of amino acids, or peptides, to feed on soybean roots.

The pest programmed the plant roots in beets to form a special nutritive tissue, which the nematode uses for its own growth.

The researchers first discovered ascarosides as a signaling molecule in C. elegans, a nematode used as a model organism to study cell, developmental and nervous system biology, as well as human aging and diabetes.

Not exact matches

In one of her experiments she studied gene expression in nematodes subjected to 15 - G pressures, using Ames's human centrifuge.

As a proof of concept for this study, the researchers tested the plant virus - derived nanoparticles with a nematicide called crystal violet, which has been used to kill nematodes on skin but not in agriculture.

Fortunately, breeders have identified soybean varieties with genetic resistance to the nematodes and have used them to create new resistant varieties.

Its main use is to kill mites and nematodes on cotton, potatoes and citrus.

Previously, it has been used in nematode worms to trigger egg - laying, and in mice to relieve depression and paralysis.

«We grew soybean plants in a greenhouse, inoculated them with nematodes, and then used the assay to determine how many repeats each plant had.

All around him, scientists are engineering fruit flies, nematode worms and mice using the bacteria - derived tool.

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.

To ensure the introduced protein didn't interact with other parts of the neuron, the team used the mouse version of the gene rather than the nematode's usual invertebrate version.

He presented his idea one day to a roomful of about 30 colleagues at Yale's «Worm Meeting,» the weekly gathering for researchers studying C. elegans, the lowly nematode widely used as a model organism in developmental biology.

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.

Using next - generation sequencing technologies that were previously unavailable, Michael Gardner, a graduate research assistant, and Jianying Wang, a senior research associate in Mitchum's lab, made a remarkable new discovery — nematodes possess the ability to produce a second type of peptide that can effectively «take over» plant stem cells that are used to create vital pathways for the delivery of nutrients throughout the plant.

To test their theory, Xiaoli Guo, a post-doctoral researcher in Mitchum's lab and first author of the study, synthesized the CLE - B nematode peptide and applied it to the vascular cells of Arabidopsis, a model plant system used in plant research.

Together with scientists from Columbia (USA), Olomouc (Czech Republic), Warsaw (Poland), Osaka (Japan) and the Freie Universitaet Berlin, the researchers at the University of Bonn have used Arabidopsis thaliana as a model plant to discover that the beet cyst nematode itself produces the plant hormone cytokinin.

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.

To study the interaction between tomato plants, the Trichoderma fungus and the nematodes, the researchers used a split - root study design.

«The approach we used could be applied generally to any nematode parasite, not just this one type,» said Dr. David Mangelsdorf, Chair of Pharmacology, an Investigator in the Howard Hughes Medical Institute (HHMI), and one of three corresponding authors of the study published in the Proceedings of the National Academy of Sciences.

Previously, it has been used in nematode worms to trigger them to lay eggs, and mice to relieve depression and paralysis.

The junior environment minister Lord Strathclyde replied saying that the use of nematodes for such purposes is not covered by the Control of Pesticides Regulations Act.

Researchers use heated magnetic nanoparticles to manipulate nerve cells and control simple behavior in nematodes

In this case, the researchers used data about the genomic expression from the nematode worm C. elegans and the fruit fly D. melanogaster.

Using genetic models in a variety of organisms — yeast, nematodes, fruit flies, zebrafish — PLab aims to identify candidate treatment compounds for each disease, which can then be refined and taken to the clinic with partner companies.

«Although these nematodes are widely used in biological control against agricultural insect pests, their efficacy in the field is limited.

A team of biophysicists from the State University of New York (S.U.N.Y.) at Buffalo used magnetic nanoparticles to control heat - activated protein gates called ion channels embedded in the membranes of nerve cells, allowing the researchers to stimulate a simple reflex in nematode worms at will.

The five nematodes — Steinernema carpocapsae, S. feltiae, S. glaseri, S. monticolum and S. scapterisci — are used both commercially and in home gardens, and are marketed as beneficial nematodes.

The results, described in the 7 March issue of Nature, raise the possibility that nematodes and plants use some of the same equipment to fight drought, says plant physiologist Dorothea Bartels of the Max Planck Institute for Plant Breeding Research in Cologne, Germany.

Methods routinely used to estimate the number of species on land suggest that there are many tens of millions of marine species, and up to 100 million nematodes alone, he says.

Researchers projected images of plates containing the nematode C. elegans, describing how the worms are used in lifespan experiments.

The objective is to support innovative projects dedicated to the development and the study of rare disease models using small animals (mouse model excepted) such as zebrafish, drosophila, nematode, rat and rabbit.

Chordate and nematode sequences were aligned separately using the T - Coffee algorithm (Notredame, Higgins & Heringa, 2000)(server tcoffee.crg.cat) and submitted to PSI - BLAST (Altschul et al., 1997)(E-value inclusion threshold < 10 − 3, 5 iterations) and HHpred (Remmert et al., 2011; Biegert & Soding, 2008) searches as implemented in MPItoolkit (toolkit.tuebingen.mpg.de).

The nematode sequences have diverged beyond the point where pairwise comparisons used in routine searches can reveal homology, hence the difficulty in identifying the nematode orthologues.

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.

We are using automated imaging to record the behaviour of freely moving nematode worms and developing new analysis methods to extract relevant features.

We aim to address this question using molecular biology tools, microscopy and genetics in the model organism C. elegansand hope to extend our knowledge by studying other nematodes, namely Caenorhabditis briggsae and Pristionchus pacific us.

Using nematode worms as an example, the researchers were able to view the effects of aging in real - time.

This strategy has been used in yeast by Lee et al (2013) and in nematodes by El Mouridi et al (2017) and Heppert et al (2016).

This very profile was probably used subsequently in all automatic annotations of the nematode sequences.

To try and better understand the mechanisms of both fear and anxiety, Salk researchers employed the use of nematode worms.

ACE inhibitors are used in medicine to treat hypertension, but the mechanism by which they extend life in nematodes - not a species that has to worry about high blood pressure - remains to be explored.