Tag: "brown" at biology news

Potential treatments for neurofibromatosis

...e. Some NF 1 patients also develop numerous light brown (café-au-lait) spots on the skin, enlargement and deformation of bones and curvature of the spine (scoliosis), and in many instances, learning disorders. Occasionally, tumors may develop in the brain, on cranial nerves, or on the spinal cord. Howeve...

Grizzlies set to invade high Arctic?

...features including a prominent shoulder hump, dark brown hair on and around the rear legs, and faded (grizz...attached to the roof they collected two intriguing brown hairs. These were sent for analysis to Wildlife Genetics International Inc. in Nelson, British Colum...

Oceans more vulnerable to agricultural runoff than previously thought, study finds

...on species produce harmful blooms, known as red or brown tides, which release toxins in the water that can poison mollusks and fish. Excessively large blooms can also overwhelm a marine ecosystem by depleting oxygen in the water. Scientists suspect that many harmful blooms are artificially fueled by fertil...

Nature provides inspiration for important new adhesive

...he new adhesives from tree bark or wood decayed by brown rot fungus. Regardless of the material used to produce the adhesives, they are renewable and may reduce the need for the currently used urea-formaldehyde wood adhesives that have health concerns, and are based on increasingly expensive petroleum. "T...

Cousin of Asian super termite invades Florida

.... The head and dorsal surface of the body are dark brown in contrast to its yellow-brown underside, thereby giving the flying insects a "two-toned" appearance. Termite "soldiers" are characterized by their teardrop-shaped heads and the presence of a pore that secretes a sticky, milk-like fluid. When in do...

Bee mites suppress bee immunity, open door for viruses and bacteria

.... The mites are about the size of a pin head, dark brown in color and visible on close inspection. This bee mite probably arose in the Eastern or Chinese Honey Bee population and hopped over to the United States in 1987. They quickly infested western or European honey bees. One sign of infection is the pr...

Attacks of King George III's madness linked to key metabolism molecule

...lucose in the liver and in the "heating system" of brown fat cells that help prevent damage from cold in certain animals. With their intimate knowledge of PGC-1 alpha and its varied roles in energy metabolism, the Dana-Farber researchers wondered if it might be involved in porphyria, since PGC-1 alpha is...

Seaweed could make junk food healthier

.... Good sources of fibre are fruit and vegetables, brown bread and cereals like bran flakes. One of the research team, Professor Jeff Pearson, of Newcastle University's Institute for Cell and Molecular Biosciences, said: "We're just not eating enough fibre, yet we need this to keep us healthy. The probl...

How cell suicide protects plants from infection

...l number of cells that later die and form discrete brown lesions on the leaves. When the gene is inactivated, the plant can no longer regulate PCD, leading to cell death throughout the leaf and plant. PCD has been described in virtually all cell types, both plant and animal. It is an important aspect of m...

Study uncovers dirty little secret: Soil emissions are much-bigger-than-expected component of air pollution

...des producing ozone smog, they help form the dirty brown clouds that often hang over major cities, they contribute to acid rain and they play a role in global climate change. In addition to equatorial Africa, hot spots for soil emissions include the central plains of the United States; southwestern Europe...

Infectious disease expert warns of spread of Rocky Mountain spotted fever

...n with the spotted fever bacterium. Feral dogs and brown dog ticks are not a species found naturally in the Arizona region, but were introduced to the state as domesticated dogs that moved with their owners into the area. "This study shows that Rocky Mountain spotted fever can show up in unexpected places...

Corn grain mould used as pesticide

... or nuts will be infected to a certain extent with brown mould," Sebastian Kiewnick emphasises. "We can only influence which strain of aspergillus grows on it: a dangerous producer of toxins ?or the non-toxic variant." ...

Techniques available to detect soil that inhibits destructive soybean pest

...are white, lemon-shaped parasites that become dead brown shells filled with maturing eggs. Some soils have ...e ages, she fills with eggs, turns yellow and then brown to become the nematode cyst. At that point her body is a case to protect hundreds of eggs while they...

New classification of eukaryotes has implications for AIDS treatment, agriculture and beyond

...ophytes, haptophytes, and stramenopiles (including brown algae, the diatoms, many zoosporic fungi, opalinids, amongst others). Finally, the authors noted that they "adopted a hierarchical system without formal rank designations, such as "class," "sub-class," "super-order" or "order," The decision to do so...

Toasty oat aroma influenced by presence of health-linked polyphenols

... only produces desirable changes, such as a golden brown color and toasty aroma, but also can sometimes cau... only produces desirable changes, such as a golden brown color and toasty aroma, but also can sometimes cause off-flavors or stale odors. The reaction not o...

Chemical compound inhibits tumor growth, size in new mouse study

... only produces desirable changes, such as a golden brown color and toasty aroma, but also can sometimes cau... only produces desirable changes, such as a golden brown color and toasty aroma, but also can sometimes cause off-flavors or stale odors. The reaction not o...

Seaweed yields new compounds with pharmaceutical potential

... corals, marine sponges, slugs, and green, red and brown seaweeds. In the lab, researchers extracted these organisms using mixtures of organic liquids, which opened up the cells and dissolved the natural products. The organic liquids were then removed from the extract by evaporation, and small quantities...

Polymer gel can block toxic leakage problem in gene therapy

...ported that another chemical extracted from common brown algae can also block toxic leakages from tumor injections when mixed with the adenoviruses. However, the high viscosity of that jello-like mixture made it hard to inject. "The bottom line is that when people try to do gene therapy on cancer they mus...

Underlying cause of massive pinyon pine die-off revealed

... from vibrant green to pale, gasping green to pale brown to dropping all their needles." Pinyon pines all over the Southwest were doing the same thing. U.S. Forest Service's aerial surveys of the region's pinyon-juniper woodlands in 2002 and 2003 revealed significant tree die-off covering more than 4,600...

Health of coral reefs detected from orbit

...d corals may rapidly be colonised by blue-green to brown algae, more difficult to distinguish from live coral. Repetitive, objective and broad-scale satellite coverage is the alternative. At this week's MERIS/AATSR Workshop in Frascati, Italy, the CSIRO team presented initial results using Envisat's Med...

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