Tag: "plants" at biology news
Farmers Can Afford To Clean Up Gulf Of Mexico, Analysis Shows
...utrient, and with so much of it in the gulf, small plants
such as algae grow so much that they use up the av...ming down the Mississippi is from sewage treatment plants
and factories. The bulk of it is non-point nitrogen. That means it is not from a specific pipe or so...
Genes Boost Rice Yields On Poorest Farms
...ould result in reducing plant production andrender plants
more vulnerable to pests and disease. However, said McCouch, "the upland varieties of rice have very interestinggenetics" that could be exploited by farmers far from the regions where they areadapted. In countries like Brazil, she noted, the less pr...
Estuaries Vital To The Productivity Of Southeastern U.S. Fisheries
... Excess nitrogen can cause microscopic plants
to "bloom" explosively inestuarine systems and then rob the water of oxygen when they die and decay....
Alien Species Cost U.S. $123 Billion A Year
...ol and loss of foragecrops, crowding out 44 native plants
and endangering the wildlife that depend onthe native plants. -- When the English sparrow ("Passer domesticus") was intentionally introducedto the U.S. in 1853, it was supposed to control canker worms. Instead, thehardy little bird became a pest by...
How Nature Harvests Sunlight
...sfit inside the ring: 24 chlorophylls (which make plants
green); eightcarotenoids (which make tomatoes red); and eight independent peptide units. They all collect and arrange into a protein membrane and feed energy into thebacterium's metabolism. Having an accurate model of the structure, Schulten said, "i...
Vanderbilt University Medical Center Forms Institute For Coffee Studies
...versity of Rio de Janeiro, who has been cataloging plants
in theBrazilian rain forest," Martin said. "We discussed potentially expanding theproject to include looking at the potential pharmacological effects of theseplants." The coffee growers hope to use the information gleaned from scientific researchto m...
Nuclear Safer Than Coal?
Nuclear power plants
are a much safer option in terms of the effect on peopleshealth than traditional coal burning power stations, according to ProfessorBernard Cohen, writing in the journal Interdisciplinary Science Reviews. Cohen,from the University of Pittsburgh, USA...
UF Scientist Seeks Super Sea Oats
...ce matters," Kane said. "Then we'llselect the best plants
from each site and determine whether they havevalu...o be able to selectsuperior, genetically different plants
from around Florida." The final step will be cloning the superior plants
in a laboratory usingmicrop...
Scientists Discover Key Cog In Receptor That Governs Ripening
... the ethylene receptor, a proteinsensor that helps plants
detect the slightest whiffs of ethylene, a gaseous...pper ion is a key mediator in the process by which plants
senseminuscule concentrations of ethylene. The discovery confirms a long-standinghypothesis that pro...
New Edition Of Ecological Monographs Is Now Available
...amount and seasonality of rainfall may affectthese plants
in the future. A three-year field study has shown...for the regeneration of shrubs andother herbaceous plants
that would otherwise die without them. The coexistencebetween plants
and soil organisms within this ...
Managing For Deer, Moose, Elk, Wolves -- And People
...eer that is determined by natural interactionswith plants
and predators, while state agencies seek a point defined mostly by what farmers and foresters will tolerate. And the publicis embracing the idea of natural balance, an outdated scientific concept. Thus,the policy of allowing ecosystem components to...
Researchers isolate gene that helps plants take in iron from soil
Researchers have isolated a gene that helps plants
to move the iron in soil intotheir roots. The finding could enable scientists to develop plants
that are moreefficient in extracting the essential element from poor soils and crops that arericher ...
Scientists Devise Method To Address Conflict Between Molecular Clock, Fossil Record Of Mammalian Evolution
...ular techniqueshave claimed that various groups of plants
and animalsnot just placentalmammalsmust have had a long history that is simply not found in the fossilrecord. These claims are based on the assumption that the molecular clock, the rate ofgenetic change any given species undergoes, is relatively con...
Bees: Latest Weapon In Cancer Fight
...umber of immunotoxindrugs with toxins derived from plants
and bacteria. These immunotoxins,however, are extremely toxic and produce a number of serious side effects thatlimit their clinical application. Dr Werkmeister points out that mellitin is far less toxic than the plant andbacterial toxins used in e...
Fake Photosynthesis? Test-Tube System In Science Paper Sheds Light On The Oxygen We Breathe, UD Prof Says
... Science --mimics a metal cluster that helps green plants
harness sunlightto turn water into oxygen, says Un...rtually all of the oxygen we breathe isproduced by plants
and some bacteria, through photosynthesis," says Rheingold,one of the world's 10 most frequently cit...
New Technology Turns French Fry Oil Into Diesel Fuel
... conversion plantsare connected to food processing plants
everywhere, giving processors anenvironmentally sound source of fuel. The two have secured a provisional patent for the technology, but lack fundingto refine the process and complete the project. As they look for a new fundingsource, though, their en...
Waste Makes Saleable Coal Product
...t we created other problems." Coal-fired plants
now use low NOx burners to reduce emissions. These...nts of unburned carbon left aftercombustion. Power plants
are left with a mixture of fly ash and unburned carbon. "Before low NOx emission requirement...
USGS Scientists To Speak On Rare Plants And Invasive Species At Santa Barbara Symposium
...lreport on the effects of exotic animals on native plants
in Channel IslandsNational Park at the 5th California Islands Symposium, in Santa Barbara, Calif.,Mar. 29-Apr. 1. Plant ecologist Kathryn McEachern will present information on soft-leaved Indianpaintbrush, which is found only on Santa Rosa Island an...
Studies At Cedars-Sinai Confirm Identity Of An Elusive 'Receptor' In Human Cells -- A Breakthrough In Understanding, Fighting Septic Shock
...emhas been conserved throughout the evolution from plants
to fruit flies tovertebrates and humans, to play a role in our immediate reaction to infections.By identifying the receptors and the signaling pathways, perhaps we can soonbegin to develop new approaches to stop the cascade of this lethal syndrome."...
Compounds From Fruits, Vegetables And Grains Slow The Growth Of Human Tumor Cells
...ion that small concentrations of twocompounds from plants
we eat suppress the growth of three kinds of human...r findings strengthen the idea that a diet rich in plants
is beneficialbecause of the large array of plant compounds rather than the singular action ofone kin...
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