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Tag: "nitrogen" at biology news

York researchers develop pollution-busting plants to clean up contaminated land

...and that can utilise the explosives as a source of nitrogen for growth. But, because RDX is so mobile in soil, the bacteria present are not degrading it quickly enough to stop the contamination of land and ground water. So the York team has redeployed the enzyme in the bacteria into plants, giving them the ab...

Light activated anticancer drug targeted to DNA using cisplatin like sub-units

... its interaction with cancer DNA by binding to the nitrogen atoms of the DNA bases, typically guanine. Our new supramolecules use this nitrogen-binding site to hold the light activated drug at the target until signaled to activate. Thus the new supramolecules can be delivered to the tumor site but remain iner...

Amazonian terra preta can transform poor soil into fertile

...rtilizer needed, because the bio-char helps retain nitrogen in the soil as well as higher levels of plant-available phosphorus, calcium, sulfur and organic matter. The black soil also does not get depleted, as do other soils, after repeated use. "In other words, producing and applying bio-char to soil would ...

GPSDB, the free Gene and Protein Synonyms DataBase

...rtilizer needed, because the bio-char helps retain nitrogen in the soil as well as higher levels of plant-available phosphorus, calcium, sulfur and organic matter. The black soil also does not get depleted, as do other soils, after repeated use. "In other words, producing and applying bio-char to soil would ...

Too much sugar not good for coral reefs

...sual suspects measured to determine water quality: nitrogen and phosphates, it was simple carbon compounds--too much sugar--that often kills corals indirectly by stimulating bacterial growth." "Sugars in runoff cause bacteria normally associated with corals to grow out of control. People don't usually even ...

Alternatives to the use of nitrate as a fertiliser

...certain plants enables the study of these forms of nitrogen as an alternative to nitrates. Nevertheless, ammon...changes are observed in relation to the carbon and nitrogen of the majority aminoacids (asparragine in the pea and glutamine in spinach). With respect to the ac...

Unraveling the mysteries of poison

...state NMR. Spin-marked proteins contain carbon and nitrogen atoms with an intrinsic magentic moment (spin) which strengthens the NMR's signals. Looking at spectroscopic data before and after the toxin affected the channel, it turned out that the poison attaches to a particular area of the channel ?the pore re...

Higher carbon dioxide, lack of nitrogen limit plant growth

...interaction between atmospheric carbon dioxide and nitrogen in soils, the scientists believe. The six-year st...ecies, provides a broad test of carbon dioxide and nitrogen interactions, said Reich. Previous studies have been done with a single or a few plant species. The...

A bathroom that cleans itself

...nanoparticles with other elements such as iron and nitrogen so they can absorb light at longer wavelengths. Lab trials show that glass coated with the new nanoparticles can be activated by visible light from a lamp to kill Escherchia coli. "If you've got this on tiles or shower screens you don't need so man...

Legume compounds may help cancer treatment

...hers screened legumes (plants which obtain useable nitrogen from soil bacteria in their roots) for biological ... in the nodules and provide the plant with useable nitrogen it can convert into proteins. CILR Chief Investigator Professor Chris Parish's group, based at ANU...

Albatross study shows regional differences in ocean contamination

...f squid, fish, and fish eggs. Finkelstein analyzed nitrogen isotope ratios in the two species--an indicator of an animal's "trophic level," or how high it is on the food chain--and found no significant difference. "Biomagnification means that you get higher concentrations of these compounds as you go up the ...

Vegetables inhibit growth of prostate cancer in mice with human tumors

...f squid, fish, and fish eggs. Finkelstein analyzed nitrogen isotope ratios in the two species--an indicator of an animal's "trophic level," or how high it is on the food chain--and found no significant difference. "Biomagnification means that you get higher concentrations of these compounds as you go up the ...

Value of services performed by insects tops $57 billion in US

...h fertilizer would be needed to compensate for the nitrogen not being returned to the soil so promptly by the beetles. The analysis did not include such important insect services as decomposing carcasses, garbage and trees (thereby decreasing the likelihood of forest fires); producing honey, shellac, dyes an...

NASA study solves ocean plant mystery

...on dioxide to the atmosphere. "We concluded that nitrogen is the primary element missing for algae growth an... Nutrients that make ocean plants thrive, such as nitrogen and phosphate, mostly come from the deep parts of the ocean, when water is mixed by the wind. Iron a...

Iron critical to ocean productivity, carbon uptake

...ressed, as well as which parts suffer from lack of nitrogen ?another key element to ocean productivity. "Nitrogen and phosphorus are nutrients that come up from the ocean bottom to feed the upper water column," Behrenfeld said. "Iron, on the other hand, can come from the deep or from the air, but it also ent...

DOE JGI sequences, releases genome of symbiotic tree fungus

...plants and are estimated to fix more phosphate and nitrogen than the entire worldwide chemical fertilizer industry produces. "The study and management of such relationships holds immense potential for the agriculture, forestry, and horticulture industries, as well as far-reaching implications for land manag...

Ammonia-loving archaea win landslide majority

... "Ammonia oxidation is an important step in the nitrogen cycle that was believed for the last 100 years to ...the ecological impact of ammonia oxidation, or the nitrogen cycle. We will have to study the nitrification activity of archaea and their underlying biochemistry...

Tropical forest CO2 emissions tied to nutrient increases

...study. The study showed when either phosphorus or nitrogen -- both of which occur naturally in the rain fores...tivities are changing the amount of phosphorus and nitrogen in ecosystems all over the globe, including the tropics, Cleveland said. Tropical rain forests play ...

Pollution threatens coral health by preventing lesions from healing, UCF study shows

...isk and LaPointe used ratios of stable isotopes of nitrogen as tracers of sewage levels. Higher values equate to larger amounts of sewage in an area. Risk and LaPointe found higher levels of the tracers than in any other area of Florida that they have studied, which Risk described as a "real cause for concern...

Invasive species alter habitat to their benefit

...ots with the litter treatment had higher levels of nitrogen in the soil and higher turnover rates of nitrogen, along with much lower light levels and lower soil temperatures," Farrer said. "So the litter was creating a pretty different environment." When she tallied other plants in the experimental plots, ...

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