nutrients 2 4

Tag: "nutrients" at biology news

Sequencing our seas

...s microbes help clean water and air and regenerate nutrients used by all life. Planktonic microbes, microscopic organisms that float freely in the oceans, help maintain environmental balance and drive the planet's biogeochemical cycles of carbon, nitrogen, oxygen and sulfur. "Plants and animals are twigs on t...

Living taste cells produced outside the body

... these cells in a tissue culture system containing nutrients and growth factors. In this environment, the basal cells divided and differentiated into functional taste cells. The new cells, which were kept alive for up to two months, were similar to mature taste cells in several key respects. A variety of met...

Ocean 'dead zones' trigger sex changes in fish, posing extinction threat

...ceans, freshwater lakes and other waterways. These nutrients trigger the growth of huge algae and phytoplankton blooms. As these blooms die, they sink to the ocean floor where they are decomposed by bacteria and other microorganisms. Decomposition depletes most of the oxygen in the surrounding water, making it...

Wyoming cloud seeding experiment begins this month

...s microbes help clean water and air and regenerate nutrients used by all life. Planktonic microbes, microscopic organisms that float freely in the oceans, help maintain environmental balance and drive the planet's biogeochemical cycles of carbon, nitrogen, oxygen and sulfur. "Plants and animals are twigs on t...

Vaccine provides 100 percent protection against avian flu virus in animal study

...s microbes help clean water and air and regenerate nutrients used by all life. Planktonic microbes, microscopic organisms that float freely in the oceans, help maintain environmental balance and drive the planet's biogeochemical cycles of carbon, nitrogen, oxygen and sulfur. "Plants and animals are twigs on t...

There's something fishy about human brain evolution

...based diet that fuelled and provided the essential nutrients to make our brains what they are today. Controvers...rder, shorelines provided essential brain boosting nutrients and minerals that launched Homo sapiens brains past their primate peers, says Dr. Cunnane, the Canad...

High-tech tags on marine animals yield valuable data for biologists and oceanographers

...res. Normally, upwelling of cold deep water brings nutrients into the coastal waters off California and supports a highly productive food web. But the 2004-05 season was marked by unusually warm water along the coast, and the sea lions were forced to change their diets and their foraging patterns, Weise said. ...

A surprising pair of proteins help make healthy eggs

...ed granulosa cells, they surround eggs and deliver nutrients and hormones. Without granulosa cells, eggs cannot mature and be successfully fertilized. How do these handmaidens grow? Biologists at Brown University and the University of California–Berkeley have discovered that two proteins ?TAF4b and c-Jun ?tea...

CU, USDA team to curb two invasive, poisonous vines

...f mycorrhizae -- soil fungi that help provide more nutrients to plant roots -- differ in species and abundance in areas surrounding swallow-worts. "It could be that swallow-worts release chemicals that make an optimal environment for certain mycorrhizal fungi," said DiTommaso. Through the altered soil, or po...

Testes to incubate stem cells

...hers are also hunting for the ideal conditions and nutrients that will coax spermatogonial stem cells into becoming sperm. So far, they have found that growth factors GDNF and fibroblast growth factor (FGF) seem to be necessary to enhance cell growth. The team's next move is to transplant monkey and human cell...

Too much sugar not good for coral reefs

...y do water quality studies. They only look at the nutrients found in fertilizers. Nitrogen and phosphates cause algal overgrowth on corals, which also contributes sugars to the system. It is vital to consider the carbon component as we develop conservation strategies for coral reefs." ...

Study by Einstein researchers could lead to a novel strategy for treating obesity

... a molecule suspected of being one of the critical nutrients influencing hypothalamic regulation of eating behavior. Previous studies had shown that hypothalamic levels of malonyl CoA increase markedly after meals and are suppressed by fasting. The Einstein researchers wanted to know whether sustained suppre...

Absence of critical protein linked to infertility

... be transformed into decidual cells, which secrete nutrients that allow the embryo to survive until it plugs into the blood supply. C/EBPb is necessary for decidualization, the researchers discovered. "This protein in the mouse is also in humans," Bagchi said. "We believe it plays a critical role in human pre...

UCLA scientists uncover mechanism of response to targeted therapy

...pply to the tumor, stopping the flow of oxygen and nutrients that the tumor needs to survive. Standard of care for kidney cancer is almost always removal of part or the entire kidney, so that tissue could be tested for the molecular signature that indicates response to CCI-779. Doctors could then decide on wh...

Leave it to salmon to leave no stone unturned

...h's BioScience journal that the silt, minerals and nutrients that are unleashed have ecosystemwide effects, cau... sciences. "Although this does replace some of the nutrients that salmon returning from the sea would normally provide, it entirely ignores the fact that live sa...

Not just the birds

...island food web by eating organisms that transport nutrients between ecosystems. "An introduced predator alter...h a large perimeter touching the sea receives more nutrients from marine ecosystems than a large island due to the differences in surface-to-area ratios. In a n...

Blood flow in brain takes a twist, affecting views of Alzheimer's

...ore blood is shunted to that region to bring extra nutrients like oxygen, making the increased activity possible. Most scientists have assumed that the more blood that flows to a particular part of the brain, the more activity on the part of neurons, the nerve cells that send electrical signals that are widel...

Most human-chimp differences due to gene regulation ?not genes

...the biochemical requirements for maximal access to nutrients as well as the need to process the natural toxins found in plant and animal foods." This is just the first of a series of similar studies, said Gilad, that will look at changes in gene expression over evolutionary time. The next steps are to look at...

UCLA paper examines how one disease may prevent another

... small intestine and interferes with absorption of nutrients from food, thrived on their "non-bread" diet. Wheat was discovered to be the culprit. Other diseases that benefit from severe caloric or protein restriction include kidney failure, type-II diabetes, inflammatory bowel disease and morbid obesity. Ov...

Gene thwarts some pathogens, gives access to others, could save crops

...s is a type of pathogen that can infect and obtain nutrients from dead cells on a plant and actually secretes toxic substances into plant tissue in order to gain entry. Another type of pathogen, called a biotroph, must feed on live plant cells. As a strategy to contain a pathogen, plants actually kill their ow...

1 2 3 4 5 6 7 8