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Tag: "grow" at biology news

Loosen up, DNA: Leukemia gene changes genetic packaging

... when or where they shouldn't be, causing cells to grow out of control. A system similar to JAK/STAT in hu...al for normal health, helping us fight disease and grow new blood cells, but when its signals run amok, those people are much more likely to get any one of ...

Global warming may have damaged coral reefs forever

...rby reefs to provide larvae which could settle and grow into new coral structures and the absence of favourable sea currents to transport the larvae could be largely to blame. Yet while a bleak picture is painted in the inner islands of the Seychelles, the survey area, from a diving perspective the oute...

Metal homeostasis research in plants will lead to nutrient-rich food and higher yielding crops

...le to engineer nutrient-rich plants better able to grow in soils now considered marginal and to increase crop biomass in soils now in cultivation. Guerinot presented her findings 2 p.m. today (Wednesday, August 7) at the Annual Meeting of the American Society of Plant Biologists (ASPB) in the Hynes Conven...

Scientists identify gene involved in stem cell self-renewal in planaria

...dy parts. Chop one into pieces, and each piece can grow into a complete planarian. The flatworm relies upon a population of stem cells to accomplish this remarkable feat; recent work sheds light on how planarians maintain these stem cells throughout their lives. In a paper to appear in the August issue o...

Airborne mold spores increase kids' risk for multiple allergies

...s) into the air. Mold is a type of fungus that can grow on any moist surface--including wood, drywall and cement. Previous allergy studies focused on visible mold or total mold concentrations, not the identification of specific airborne fungal spores. The UC-led study showed that exposure to specific air...

Invasive species alter habitat to their benefit

...itter, and the increase in nutrients may help them grow larger." The results suggest that invasive cattails set in motion a feedback loop that helps them gain a stronghold. "The invasive cattails change the ecosystem through litter accumulation, producing an environment in which native plants don't perf...

Defense peptide found in primates may block some human HIV transmissions

...ular biology and microbiology, to develop a way to grow retrocyclin through genetically engineered tobacco plants. The retrocyclin gene would be incorporated into the chloroplast genome of tobacco cells before the plants grow. Daniell has developed a similar approach to growing anthrax vaccine in tobacco ...

Genetic snooze button governs timing of spring flowers

...milar to vernalization, occurs in many plants that grow in temperate climates. "Bud dormancy is not broken until the plant has 'counted' a sufficient number of days of cold to ensure that any subsequent warm weather actually indicates that spring has arrived," Amasino says. The Wisconsin team led by Amas...

Finding paves way for better treatment of autoimmune disease

...thor. "After three days, we give them some food to grow and, in one week, you get about 90 percent pure regulatory cells." The approach worked with laboratory-grade alcohol, called butanol, as well as beverage-grade ethanol. Normally, regulatory T cells constitute about 5 percent of the T cell compa...

Bedsores and bald hides: Novel roles revealed for a 'scaffolding' protein

...reported that mice lacking the K17 protein fail to grow a healthy coat of body hair during the first week after birth. It turns out that without K17, cells in the hair follicle die too soon, which results in a thin coat of fragile hair, a condition resembling alopecia or thinning, balding hair. That the h...

Recombination protein dynamics observed with single monomer resolution

...ment that spirals around the DNA. The filament can grow in either direction, and can advance on the DNA by...ations, both ends of the RecA filament continually grow and shrink, but a higher binding rate at one end causes the filament to grow primarily in one direct...

Protein-coated dental implants could improve bone regeneration

...able wound and space for the regenerated tissue to grow during the initial stages of healing. "If these ...y enough and may block the space for new tissue to grow into." The experiments helped researchers narrow down possible treatments to the use of proteins t...

Scientists discover why cornea is transparent and free of blood vessels, allowing vision

...d illnesses such as cancer, in which blood vessels grow abnormally and uncontrollably, since this phenomenon, present in the cornea normally, can be used therapeutically in other tissues. "This is a very significant discovery," says Dr. Reza Dana, Senior Scientist at the Schepens Eye Research Institute,...

Breaks in hibernation help fight bugs

...obial growth depends on temperature. Most bacteria grow faster when it is warm and much slower when it is ...adaptation to help protect them from bacteria that grow well in low temperatures," says Luis. The researchers suggest that an understanding of how path...

Spinal cord bridge bypasses injury to restore mobility

...ed that axons are alive and continue to attempt to grow for years. Silver describes them as "trucks stuck...of the spinal cord and allowed the nerve fibers to grow and regenerate over three weeks. . At approximately two and a half weeks into the new nerve growth...

Research highlights how bacteria produce energy

...y allowing the bacteria in microbial fuel cells to grow on biofilms on the electrodes of a fuel cell. This week, Gemma Reguera, a researcher in Lovley's lab will present data identifying for the first time how these bacteria are able to transfer electrons through the biofilms to the electrodes. "Cells a...

The vicious cycle of rainforest destruction

...of tension' where rainforest and savanna currently grow side by side. Using these measurements, detailed computer models will be created to look at the impact of changes in tropical vegetation on the Earth system in terms of carbon emissions, temperature and rainfall. These changes will then be fed back ...

How ancient whales lost their legs, got sleek and conquered the oceans

...s, they didn't have the Sonic hedgehog required to grow a complete or even partial limb, although it is active elsewhere in the embryo. The team also showed why Sonic hedgehog became inactive and all traces of hind limbs vanished at the end of this stage of whale evolution, said Cohn. A gene called Hand2...

Neurons grown from embryonic stem cells restore function in paralyzed rats

...n the back of the hind leg). GDNF causes axons to grow toward it. Three months after the transplants, ...use cells. It has only recently become possible to grow motor neurons from human embryonic stem cells, Dr. Kerr adds. However, if the future studies go well...

Five surprising facts about starvation that could change the international agenda

...e deadly synergy of these two factors is likely to grow in coming years." Fourth, political and economic...epetitions of nutrition and health insults as they grow into adulthood. The world cannot afford to waste another decade talking about global targets, waitin...

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