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Tag: "red" at biology news

Scientists solve sour taste proteins

...cium concentration was high, the other that glowed red when the concentration was low. When they added s...ration within the cell and changing the cells from red to green, Matsunami said. The channels remained closed when confronted with salt, sweeteners, or bit...

Movie spies on malaria parasite's sneaky behavior

...ansitioned from infecting liver cells to infecting red blood cells. During this stage of the parasite's l...moves back into the bloodstream to infect and kill red blood cells. The rupturing of blood cells causes the worst symptoms of the infection, which can be d...

Science captures the essence of fruit

...ing a compound that smells like the heady scent of red roses. Dr Newcomb says HortResearch scientists are continuing to seek new gene/compound combinations which they believe will find ready demand in the marketplace. "Alongside colour, flavour and fragrance rank as some of the most important guides...

Loosen up, DNA: Leukemia gene changes genetic packaging

...e researchers got came very simply and clearly ?in red and white. By looking at the eye color of a variet...es, and active when expected, producing flies with red eyes. But in flies with increased JAK/STAT signaling, similar to what occurs in many leukemia patien...

How bad is malaria anemia? It may depend on your genes

...inflammation called MIF, which appears to suppress red blood cell production in people whose red blood cells already are infected by malaria parasites. The parasite that causes malaria - known a...

Predators prefer to hunt small-brained prey

...ll brain such as small antelope, mongooses and the red river hog were more susceptible to attacks by predators compared with larger-brained prey. The report showed a strong correlation between the brain size of the prey and the predatory bias towards it. Animals with small brains lack behavioural flexi...

Choosy females make colourful males

...ed species, one with blue males and the other with red males. Females prefer males of the right colour, b...light Yet how did these differences evolve? The red species occurs in deeper water than the blue species and therefore experiences different light condi...

Biological motors sort molecules one by one on a chip

...is, the researchers allowed a mixture of green and red fluorescent microtubules to arrive at a Y-junction...lft researchers were able to collect the green and red microtubules in different reservoirs. With their approach to the nano-channels, the researchers k...

Recent, rapid climate change is driving evolution of animal species

...e a number of examples of these changes: Canadian red squirrels reproducing earlier in the year; German blackcaps (birds) are migrating and arriving earlier to their nesting grounds; and, North American mosquitoes living in the water-filled leaves of carnivorous plants are using shorter, more "southern"...

Salk scientists get to the root of plant cell fate

When Robert Burns compared his love to a red, red rose, he definitely wasn't referring to a topless mutant. That's because rather than being topped by a lovely, fragrant bloom, a rose mutant in the gene known as TOPLESS would be crowned by a homely second root. Researchers at the Salk Institute for...

More than drought affecting wheat yields

...ddition, 50 percent of the samples contained maize red stripe virus, more commonly known as High Plains virus. Both diseases are vectored by the wheat curl mite, Allen said. And so far, there's no treatment for either the viruses or the mite. The Great Plains Diagnostic Network is a part of a national p...

Zebra finch males prefer females with exaggerated maternal traits

...he father red; for another group, the mother got a red beak and the father an orange one. When the males reached adulthood, they were tested with females with a spectrum of beak colors ranging from extreme orange to extreme red. Males in both groups preferred females with beaks that were more extremely c...

Researchers find protein that silences genes

...and found that much of the HDA6, seen as a glowing red signal under the microscope, shows up in the nucleolus, which is precisely the site where ribosomal RNA genes are regulated and where nucleolar dominance occurs. "We found HDA6 at the scene of the crime, which was reassuring," Pikaard said. Ph.D....

New treatment for severe malaria

...hen the malaria bacteria P.falciparium infects the red blood cells, which then accumulate in large amounts, blocking the flow of blood in the capillaries of the brain and other organs. The reason that the blood cells conglomerate and lodge in the blood vessels is that once in the blood cell the parasit...

MRSA vaccine shows promise in mouse study

...lp the microbe acquire needed iron from the host's red blood cells. The other two, SdrD and SdrE, are thought to be involved in bacterial adhesion to host tissues. When tested alone as a vaccine, each of the four proteins provided only partial or no protection. Fifty to 70 percent of mice vaccinated ...

ABCB6 is key to production of heme in hemoglobin

...uction of a molecule that is key to the ability of red blood cells to carry oxygen, of liver cells to bre...d to heme. Heme is the oxygen-carrying part of the red blood cell molecule called hemoglobin, as well as a critical part of certain liver enzymes that brea...

Ghost protein leaves fresh tracks in the cell

...f Cell Biology. Spectrin was first discovered in red blood cells, where it forms a protein scaffold und...serves as the mortar that attaches spectrin to the red blood cell membrane. Dubreuil and his UIC co-workers have spent a decade looking at different type...

With record resolution and sensitivity, tool images how life organizes in a cell membrane

...brane features that they could study. Tall lipids, red in illustrations in the paper, melted at higher temperatures than short lipids, represented by green. The researchers melted the lipids together, then placed them on a surface to cool and separate into splotchy patterns. This is the system that Longo...

Parasitic plants sniff out hosts

... plants, pots of moist dirt, and vials of green or red water. None of these objects elicited any directional growth. Then, to narrow down the possible cues being used, they tested the seedlings' response to tomato plants slightly separated from the dodder seedlings, out of view so to speak, in a set-up ...

Fire ant-attacking fly spreading rapidly in Texas

Parasitic flies introduced to control red imported fire ants have spread over four million a... "getting to first base" in the attempt to control red imported fire ants with phorid flies. In their native Argentina, where Gilbert and his collaborat...

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