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Tag: "produces" at biology news

Brazilians sequence genes of pig and poultry killers

...which participated in the sequencing study, Brazil produces 7.5 millions tonnes of it each year. Reference: Journal of Bacteriology 187, 5568 (2005) ...

GM crop that holds on to its seeds offers higher yields

...ive Brassica napus (canola or oilseed rape) ?which produces a better quality oil ?to create new varieties. Østergaard says that combining the new drought resistant varieties with his teams' plants that do not shatter their seeds could yield crops that are well suited for the warmer climates of most developin...

Researchers find gland that tells fruit flies when to stop growing

...an it really is." Enlarging the prothoracic gland produces much smaller-than-normal adult fruit flies, Riddiford said. "In humans, it would be as if you reached puberty when you were 6 years old." In the research, Mirth determined the critical weight for fruit flies to begin metamorphosis, and examined when...

New factor implicated in allergy and asthma attacks

...ntists have long assumed that they know how pollen produces such debilitating responses. They blame an overreaction by the body's immune system, set off by proteins known as antigens, which are found on the surface of pollen particles--an inappropriate activation of the normal "antigen-mediated" immune respon...

Gene therapy reverses genetic mutation responsible for heart failure in muscular dystrophy

...o deliver the genes before the human immune system produces antibodies to block it. In addition, we used a muscle-specific promoter in the virus, which also should lower the risk of any potential immune response against the gene product. In fact, in hamsters, we did not find any immune response to the human d...

MicroRNAs have shaped the evolution of the majority of mammalian genes

...often act to reduce the quantity of protein a gene produces without shutting it off all together. "We think the microRNAs are sometimes having what you can call a dampening effect," says Bartel, who is also a Howard Hughes Medical Institute investigator and MIT professor of biology. "They appear to be helpin...

Research casts doubt on circulating stem cells

...org , PNAS Early Edition). Bone marrow constantly produces stem cells from which, among other things, the white and red blood corpuscles are formed. The dream of many scientists is to breed other types of tissue from bone marrow-derived cells. In recent years a great deal of hype has been generated around th...

A 'dimmer switch' for genes

... than an on-off switch. Genes carry the code that produces proteins to carry out almost all functions in a living organism. But some of these proteins also help control when and where genes do their jobs. The new study deals with how one such protein, named Ets-1, turns genes on or off. Huntsman Cancer Inst...

Oceans turning to acid from rise in CO2

...ronment. When CO2 gas dissolves into the ocean it produces carbonic acid, which is corrosive to shells of marine organisms and can interfere with the oxygen supply. If current trends continue, the scientists believe the acidic water could interrupt the process of shell and coral formation and adversely affec...

Molecular Partners Required For Appropriate Neuronal Gene Repression

...emature infants who die during intensive care also produces HA. We believe the HA may also prevent the production of myelin-producing cells and be related to the motor impairment seen in CP. My hope is that this work will benefit a wide range of patients from premature infants to stroke victims to those suffe...

OHSU researchers discover potential mechanism to repair brain damage linked to Multiple Sclerosis

...emature infants who die during intensive care also produces HA. We believe the HA may also prevent the production of myelin-producing cells and be related to the motor impairment seen in CP. My hope is that this work will benefit a wide range of patients from premature infants to stroke victims to those suffe...

NHGRI expands effort to revolutionize sequencing technologies

...ltiplex single-molecule DNA sequencing system that produces sequence reads containing hundreds of thousands of nucleotides. "$100,000 Genome" Grants NHGRI's "Near-Term Development for Genome Sequencing" grants will support research aimed at sequencing a human-sized genome at 100 times lower cost than is pos...

Immune system has evolved to prevent autoimmune disease

...that are effective, as it rapidly creates and mass produces mutant white blood cells called B cells that make only these antibodies." Deem said prior research has identified a number of alternate strategies the immune system could use to reduce the time needed to create an effective B cell. In addition, thes...

Micro RNAs play role in egg making

.... (All plants and animals have DICER, the gene the produces miRNAs, so the researchers used a "genetic trick" to generate DICER-less eggs.) In comparing overall protein production between these two groups, the researchers discovered that miRNAs stopped the manufacturing of a small group of key proteins, incl...

Scientists use gene transfer technology and common virus to block neuropathic pain

...opathy will lift their paw if the filament or heat produces pain. Rats without neuropathic pain don't even notice. By monitoring whether rats lift their paw, and how long it takes for them to do so, scientists can measure the degree of pain the animal is feeling. One week after surgery, some of the rats rece...

Making plant cells work like miniature factories

...etabolism, then ideally, all the materials a plant produces can be controlled." The project, "Mass Spectrometric Imaging of Plant Metabolites," combines the analytical chemistry expertise of Ames Laboratory with the strength of ISU's Plant Sciences Institute. Yeung, who is also a distinguished professor of c...

Study: Plants use dual defense system to fight pathogens

...tors, that are secreted by pathogens. This pathway produces a stronger immune response than the PAMP pathway, Mackey said. He and his colleagues found that the R-protein pathway steps in when PAMP is rendered useless by a pathogen. Certain types of bacteria, including P. syringae, make a hypodermic needle-l...

Solution to 'legionella'

...ctive interference generates a pressure front that produces a decompression of the gases dissolved in the water. This wave front produces a luminous plasma around the bubbles, as well as high pressure and temperatures. These pressures an...

Virus uses tiny RNA to evade the immune system

...s most studied part." When SV40 enters a cell, it produces T antigen, which functions to trigger viral DNA replication. Unfortunately for the virus, T antigen also serves as a target for immune (T) cells, which can destroy infected cells and prevent the virus from spreading. Conveniently, the microRNA that ...

Long-sought flower-inducing molecule found

...assical properties of Florigen. A gene called "FT" produces the "messenger molecule". This gene is active in leaves and its activity is controlled by the length of the day. When the gene is activated, a messenger molecule is produced that is transported to the shoot tips where it very efficiently induces the ...

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