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Tag: "environmental" at biology news

One species, many genomes

...ies that are optimally adapted to rapidly changing environmental conditions," explains Weigel. He is already collaborating with the International Rice Research Institute (IRRI) in the Philippines to apply the methods and experience gathered with Arabidopsis to twenty different rice varieties. How environment and...

Research identifies protein that signals flowering in squash plants

... optimizing crop yields and other traits for local environmental conditions. Experimental evidence indicates that a flowering-inducing substance, known as florigen, is produced in the leaves of a plant under inducing conditions, and then is transported through the phloem to the floral meristems, where it acts t...

Pregnant mom's exposure to flu vaccine kick-starts fetal immune system

... incompetent but, rather, capable of responding to environmental exposures. These conclusions have important implications for determining when immune responses to environmental exposures begin....

Soils offer new hope as carbon sink

...300 times as potent as carbon dioxide). NSW DPI environmental scientist Steve Kimber said an added benefit for both the farmer who applies agrichar and the environment is that the carbon in agrichar remains locked up in the soil for many years longer than, for example, carbon applied as compost, mulch or crop r...

Researchers track how spores break out of dormant state

...ore coat, have a significant resistance to extreme environmental factors including heat, radiation and toxic chemicals. However, once in favorable conditions, spores break the dormant state through germination and reenter the vegetative mode of replication. Although significant progress has been made in underst...

CSIRO scientists join fight to save 'Tassie devil'

...the vital role they have in maintaining Tasmania’s environmental balance. Other collaborators include: the Department of Primary Industries and Water (DPIW) and the University of Tasmania (UT)....

Bigger horns equal better genes

...ore than 150 ibex, took into account the fact that environmental factors also play a role in determining ibex horn size. The ibex's horns are considered a "secondary sexual trait". Researchers believe the horns help males successfully mate because they display genetic quality to females and also help to "win" p...

Envisat captures first image of Sargassum from space

...he first time thanks to an instrument aboard ESA’s environmental satellite, Envisat. The ability to monitor Sargassum globally will allow researchers to understand better the primary productivity of the ocean and better predict climate change. Using optical radiance data from the Medium Resolution Imaging Spect...

Ancient DNA traces the woolly mammoth's disappearance

...this seems much more likely to have been driven by environmental rather than human causes, even if humans might hav... because scientists tended to think that the major environmental changes happened about fifteen to twenty-five thousand years ago, when the glaciers reached their fu...

New study finds genetically engineered crops could play a role in sustainable agriculture

... Science. The study analyzes, for the first time, environmental impact data from field experiments all over the wo... a searchable global database for agricultural and environmental scientists studying the effects of genetically engineered crops. Biotechnology and genetic engineer...

Undergraduate research shows leaderless honeybee organizing

... complex tasks – manufacturing, community defense, environmental control and maintenance, food production, brood-re...dynamics of the group itself. Social interactions, environmental pressures or group dynamics in some still-unknown way initiate a string of behaviors that effectivel...

Massive herds of animals found to still exist in Southern Sudan

...ties and engage the private sector to employ sound environmental practices. “Humanitarian and development NGOs a...s will affect the wildlife and without appropriate environmental impact assessments and mitigation plans in place. Resettlement in areas depopulated during the war i...

Study shows lizard moms dress their children for success

...lassic example of an interaction between genes and environmental influences on traits," Lancaster said. "Females provide an estradiol-rich prenatal environment to their entire clutch, but different progeny respond to it in different ways depending on which genes they inherit for throat color. So a female could mak...

Microbes at work cleaning up the environment

...are naturally asking questions about the potential environmental impacts. Here, we see that naturally produced nanoparticles can be naturally controlled.”...

Herpes virus hijacks DNA repair process

...ally fixes DNA errors caused by radiation or other environmental factors, or mistakes accidentally introduced when cells copy their genetic material prior to dividing. In the murine (or mouse-infecting) herpes virus they studied, researchers at Washington University School of Medicine in St. Louis identified a ...

Marine phytoplankton changes form to protect itself from different predators

...s. This complex defensive behavior also shows how environmental factors can affect even simple organisms, Hay note...form the organism has taken. “It depends on the environmental context, which we are appreciating more and more in ecology and in biomedical research,” he added. ...

Research finds that circadian rhythms dominate all life functions

...of circadian rhythm on all genes. Depending upon environmental factors, groups of genes can function in a synchronized manner, shifting in time against each other and working in what resembles a domino effect. However, very few genes are found to be oscillating in the same phases in different tissues or organ...

Gene responsible for common hearing loss identified for first time

...l disease, caused by an interaction of genetic and environmental factors. The outcome is a progressive hearing loss as the growing bone in the middle ear interrupts the sound waves passing to the inner ear. While the causative factors remain unknown, now one of the genetic components has been identified, Ms Thys t...

Researchers demonstrate way to control tree height

...ive ways, and some might have value in cleaning up environmental pollution. In their studies, OSU scientists wer...indy, limited soil moisture situations. From an environmental viewpoint, the researchers said, dwarfed trees such as this are unlikely to be any kind of threat to...

Researchers discover 'acquired' DNA key to certain bacterial infection

...ka. The key to the bacterium’s ability to enter environmental amoebas – and ultimately humans – is an “island” o...es, the bacterium is very inefficient in infecting environmental amoeba, which is the environmental host,” Bermudez said. “In fact, its efficiency is close to zero. ...

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