Sentences with phrase «by plant compounds»

Moreover, zinc absorption is inhibited by plant compounds such as phytate, oxalate, polyphenols and fiber, and enhanced by compounds present in meat.

The research team tested the cells in dishes that were treated with luteolin and found that migration was inhibited by the plant compound.

Not exact matches

Phytochemicals are compounds produced by plants to protect themselves from infection and stress.

Inputs into an organic production system are generally prohibited if synthetically compounded — defined by the ACO Standard as a process which chemically changes a material derived from plant, animal or mineral resources, with the exception of microbiological processes.

This will be compounded by the projection that «Gas supply from jubilee field will also stop as the FPSO is expected to shut down for repairs for a period between three to six months,» Mr. Agyarko said, thus the Asogli and AMERI plants may not be able to generate enough power.

The class of compounds studied includes those used by some plant pathogens to coordinate their attacks.

Incorporation of CNTs enhanced electron flow associated with photosynthesis by 49 % in extracted chloroplasts and by 30 % in leaves of living plants, and incorporation of cerium oxide nanoparticles (nanoceria) into extracted chloroplasts significantly reduced concentrations of superoxide, a compound that is toxic to plants.

The plant compounds used by the UGA researchers — resveratrol, found in grapes; genistein, found in soybeans; and quercetin, found in apple peels and onions — have all been shown in previous studies to be fat - busters, causing fat cells to burst and release their contents.

Like its human counterpart, the cat bitter taste receptor Tas2r43 was activated by bitter compounds aloin (found in the aloe plant) and denatonium (used to deter children and pets from consuming chemicals such as antifreeze) but responded differently to the compounds.

Research led by Sandia National Laboratories and the University of California, Merced aim at bringing down the cost of hydrogen fuel cells by using a dirt - cheap compound to create an uneven surface that resembles a plant's leaves.

In the past, researchers have examined herbal medicines by running assays for toxic compounds and using DNA tests to determine whether a specific plant or animal is present.

The researchers, led by Sara Jaeger, Jeremy McRae, and Richard Newcomb of Plant and Food Research in New Zealand, found that for four of the ten odors tested, there was indeed a genetic association, suggesting that differences in the genetic make - up determine whether a person can or can not smell these compounds.

Nitrogen helps plants produce proteins, including the key molecules that control photosynthesis, the process by which the sun's energy is captured and converted into the carbon compounds that are the raw material for growth.

The production of these compounds in the plant is tidily regulated by small hormones, like salicylic and jasmonic acid.

Cortright and chemical engineer James Dumesic discovered in their university lab back in 2001 that by starting with water and various carbohydrates from plants — basically, carbon, hydrogen and oxygen compounds — and using catalysts, heat and pressure, they could start creating CO2 and hydrogen and then use that hydrogen to eliminate the oxygen as water (the process produces more water than it consumes).

Genomic sequencing experts at Johns Hopkins partnered with pharmacologists at Stony Brook University to reveal a striking mutational signature of upper urinary tract cancers caused by aristolochic acid, a plant compound contained in herbal remedies used for thousands of years to treat a variety of ailments such as arthritis, gout and inflammation.

Network theory says they should indeed match, due to the prominence in both of dimethyl disulphide, a compound that is given off by the noisome dead horse arum plant and is a potent neurotoxin for some cockroaches.

In the wild, they could perhaps acquire the compound by eating plants that release it to fight aphid infestations.

Experiments in 2014 on sagebrush showed some plants spoke a language dominated by camphor compounds, while others emitted more thujone, coincidentally the same chemical suspected to be responsible for the hallucinogenic effects of absinthe.

In any case, a new market analysis by Lux Research forecasts that the global desalinated water supply will grow at a compound annual growth rate of 9.5 percent during the next decade as Australia, Israel, Singapore, California and others build desalinization plants for seawater and inland brackish water as well as for water recycling.

The clay in the salt lick provides minerals that help counter poisonous secondary compounds found in the plants eaten by tapirs.

By sending out chemical compounds via the mycorrhizal network, the broadcasters warned the second group of plants of impending insect attack.

One potential way to protect crops is by spraying them with a compound that induces the plants to become more drought resistant.

This was compounded by news of the hack at the Texas water plant, where on 20 November a hacker named «prof» gained access to the plant's systems using a three - character default password on an internet - accessed SCADA made by Siemens of Germany.

Some compounds produced by the degradation and break down of cellulose are known to promote plant growth.

By analyzing a large sample of French grapes and white wines through a technique called liquid chromatograph mass spectrometry, the investigators found that, during grape growth, this enzyme (named CYP76F14) helps to convert a common plant compound, monoterpenol linalool, into a different compound, (E)-8-carboxylinalool.

Their results confirmed that wastewater plants are important sources of pharmaceuticals, but they also demonstrated that these compounds are common in streams that aren't fed by wastewater plants.

Compounding concerns, reports from the U.S. Environmental Protection Agency (EPA) leaked earlier in the year indicated that fracking wastewater is too radioactive to be handled safely by water treatment plants.

Medicines derived from plants were widely used as remedies in Brazil until the end of World War II, when these were progressively replaced by synthetic compounds.

Tobacco plants released the same eight compounds when wounded by either pest, but five of these chemicals were consistently more concentrated around plants hit by the tobacco budworms.

Most plants rely on the C3 process, which uses carbon dioxide and fixes three - carbon compounds in a photosynthetic cycle, but a few have evolved the more efficient C4 variety, developing a competitive edge by fixing four carbons per cycle.

In the new study, led by Purdue biochemist Natalia Dudareva, the team looked for genetic changes as the plant developed from its budding stage, which had the lowest levels of volatile organic compounds, to its flower - opening stage, with the highest levels.

It is the first marijuana - based drug to be made by extracting the compounds from the plant, rather than synthesizing them.

According to a study led by the researcher Usue Pérez - López of the Department of Plant Biology and Ecology of the UPV / EHU's Faculty of Science and Technology, the colour of the leaves of these vegetables determines the speed at which their compounds act.

However, the model calculations have been very inaccurate, as there are still large gaps in our knowledge concerning the role of the compounds emitted by plants during the transition between gaseous and solid state.

Over 3000 plant species produce cyanogens, compounds that are converted into cyanide by specialized enzymes also produced by the plant.

In contrast to the original plant compound, the new substance can no longer be cleaved by the plant enzyme to generate the toxin.

The presence of alkaloids — naturally occurring toxins produced by trees and other plants — has long been suspected in smoke from forest fires, but the new study is the first to detect the compounds coming directly from a blaze.

So - called extremely low - volatility organic compounds, which are produced by plants, could be detected for the first time during field and laboratory experiments in Finland and Germany.

The research group is now trying to boost the effect of the specific compounds in each variety by subjecting the plants to short stresses.

These compounds are first emitted by plants into the atmosphere and then oxidized by common oxidants, ozone or the OH - radicals.

Fieldwork for the study — which was conducted by lead researcher Brittany Ayers, at the time an undergraduate in the Penn State Schreyer Honors College — was performed in a variety of weather conditions, which affected how the treatment plant dealt with the chemical compounds, Gall noted.

«PPCPs are used by almost everyone and most wastewater treatment plants are not able to completely deactivate many of the compounds they include.»

However, the types of organic compounds found in plant matter — dominated by aromatic hydrocarbons — underwent some chemical changes, but remained relatively resistant to impact pressures.

Plants — from the maple or the yew tree to the corn in roadside fields — produce countless kinds of compounds, also known as natural products, that the plants manufacture using the enzymes predetermined by their geneticPlants — from the maple or the yew tree to the corn in roadside fields — produce countless kinds of compounds, also known as natural products, that the plants manufacture using the enzymes predetermined by their geneticplants manufacture using the enzymes predetermined by their genetic code.

Stilbenoids are compounds produced by plants to fight infections, and in human biology appear to affect some of the signaling pathways that allow vitamin D to do its job, researchers said.

Brodie describes these phenolic acids as very specific compounds released by plants throughout their development.

Both are pollutants, but the first is dominated by sulphate emissions from coal burning power plants, the second from ozone precursors such as NOx, volatile organic compounds, and carbon monoxide mainly emitted from vehicles.

Burkle and Runyon (2016) examine possible mechanisms underlying changes in pollinator behavior resulting from climate change and report that volatile organic compounds emitted by flowering plants are a primary pollinator attractant.

Researchers at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) and Sandia National Laboratories working at JBEI have resolved the protein structure of the enzyme LigM, which is utilized by the soil bacterium Sphingomonas to metabolize aryl compounds derived from lignin, the stiff, organic material that gives plants their structure.