Nitrogen fertilization of soil puts rare plant species at risk, nationwide study determines
...to a lesser extent, lightning) have the ability to fix atmospheric nitrogen, and the amount they make ava...hat form a symbiotic relationship with bacteria to fix nitrogen from the atmosphere and so do not rely on soil nitrogen) are lost because the benefits asso...Project shows need for better monitoring of river restoration
...t no real consistency," said Allan. Suggestions to fix the problem include: framing grant proposals so they allow for long term monitoring funds; moving from a locally focused restoration approach to a more integrated vision to include more areas; and implementing some sort of systematic data collection....Children at risk, says Illinois agricultural economist who helped assess the world's ecosystem
...ou are doing, especially the bad things, you can't fix them." While the study has a global focus, Nelson also said the study highlights some possible future concerns for Illinois. "Local climate change, following from global climate change, may necessitate changes in cropping patterns, even if farmers st...Disabling gene defuses rheumatoid arthritis in mice
...f these cells are like guided missiles: they get a fix on a specific target, pursue it and attack it. "Classically, everyone thought that the T cells somehow recognized something specific in the joint like collagen or some other protein and attacked it," Peng explains. "In recent years, though, it's bec...To stop evolution: New way of fighting antibiotic resistance demonstrated by Scripps scientists
...te repair enzymes, which then go to work trying to fix the problem. If the damage persists, the cell upregulates recombination enzymes, which are tasked with recombining the DNA -- another way to repair it. And, says Romesberg, if the damage still persists, the cells upregulate enzymes whose sole task is...Dirk Inz receives the Francqui Prize for Biological and Medical Sciences 2005
...ch into the molecular mechanisms with which plants fix carbon dioxide and convert it into bio-mass will undoubtedly enable these processes to be optimized. Prof. Inz's research group is the international leader in the study of the mechanisms that control bio-mass, and it is his ultimate ambition to make ...New study finds how cells with damaged DNA alert the immune system
... cell cycle is halted so that the cell has time to fix the damage before the DNA is replicated. If the damage is too severe for the cell to repair on its own, it can trigger cell death, a process known as apoptosis. "All of this is happening autonomously within the cell," said Raulet. "What's new about o...Study: Well-known protein helps stem cells become secretory cells
...n don't work, and stem cells might be able to help fix that problem, the researchers note. "The key is knowing how pancreatic cells know what hormones to produce and release, or how any gland does, and the new findings add to that knowledge," says Deborah Andrew, Ph.D., professor of cell biology in John...Study identifies protein's role in cell division
...r toxic chemicals, for example, the cell pauses to fix things," said Marzluff. But without Upf1, or another protein called ATR that becomes activated when DNA synthesis is paused, histone messenger RNA is not destroyed, thus allowing histone proteins to accumulate at dangerously high levels. "This is the...Scientists discover the molecular switch for nerve cells' insulating jelly rolls
...d. If so, it may one day be possible to enhance or fix damaged spinal cords and brain tracts that have lost their myelin due to injury or disease by transplanting into, or turning on, a functioning neuregulin gene in nerve cells. "Is it possible that this same switch can reprogram a nerve cell that has l...Illinois research zeroing in on optimum soil nitrogen rates
... Soybeans are legumes. They nodulate and therefore fix atmospheric nitrogen, but are more apt to use soil resources when available. Mulvaney maintains that with today's production systems, soybeans vary widely in their net effect on soil nitrogen availability, which was found to be negative when the ISNT...Cells from amniotic fluid used to tissue-engineer a new trachea
...otic fluid that surrounds it, to create patches to fix birth defects -- in this case, even before birth. ...be safely repaired after birth, Fauza's goal is to fix tracheal defects in utero. Once the baby is born, tracheal surgery requires that the baby be intubat...Normal chromosome ends elicit a limited DNA damage response
...overed with telomeric proteins. "The cell tries to fix everything to make sure that the genetic information is safe and complete for the next generation of cells," says Verdun. "But in the case of healthy chromosome tips or telomeres, repair would have disastrous consequences," he adds. Repairing telomer...Gene therapy for muscular dystrophy fixes frail muscle cells in animal model, Stanford study finds
...d is that it could potentially provide a long-term fix for a variety of genetic diseases, including muscular dystrophy. In muscular dystrophy, the muscle cells break down and are slowly replaced by fat. Eventually people with the disease are confined to a wheelchair and usually die in their 20s. There is......ia Goodfellow, BBSRC Chief Executive, said, "Algae fix around half of the world's carbon so it is vital that we can understand what affects their growth and wellbeing. Research into fundamental relationships and microscopic bacteria may not seem important at first but it is only by improving our understa...Patterns in genome organization may partially explain how microbial cells work
...chromosomes may have something like ZIP codes that fix groups of genes to certain locations within the cell where they are most needed," said Timothy E. Allen, a member of Palsson's team at UCSD who is currently an assistant professor of biomedical engineering at the University of Virginia. He said the s...Pitt professor's theory of evolution gets boost from cell research
...e and expresses itself. "You just can't do a quick fix on the environment to prevent extinction because the cause of the mutation occurred some time in the past, and you don't know what the cause of the stress was at that time," Schwartz said. "This new understanding of how organisms change provides us w...Hot-spring bacteria flip a metabolic switch
...ay job of photosynthesis and unexpectedly begin to fix nitrogen, converting nitrogen gas (N2) into compou...ut until now, it was unclear which organisms could fix nitrogen--especially in the hotter regions of the mat. "The cyanobacteria are true multitaskers with......other means of tweaking the reproductive system to fix problems ranging from infertility to precocious puberty, and also provide animal breeders with a new way to manipulate the productivity of livestock. The findings by Kriegsfeld and colleagues are reported this week in the online early edition of Proc...