Biology News

Nanosensors to Visualize Movements and Distribution of Plant Stress Hormone Tuesday, April 15, 2014 - 12:34

Biologists at UC San Diego have succeeded in visualizing the movement within plants of a key hormone responsible for growth and resistance to drought. The achievement will allow researchers to conduct further studies to determine how the hormone helps plants respond to drought and other environmental stresses driven by the continuing increase in the atmosphere’s carbon dioxide, or CO2, concentration.

 

Does spending too much time on Facebook damage women’s body image? Friday, April 11, 2014 - 08:59

While too much attention to images of actresses and models in the media may contribute to women developing poor body image, a recent study suggests that this may extend to women who spend a lot of time on Facebook making comparisons between themselves and their friends. The research is being carried out by Petya Eckler of the University of Strathclyde, Yusuf Kalyango Jr. of Ohio University and Ellen Paasch of the University of Iowa. The team will present their findings at the 64th Annual Conference of the International Communication Association in Seattle, WA (22nd-26th May 2014).

 

Insights Into How A Bird Flu Virus Spreads Could Prevent Pandemics Thursday, April 10, 2014 - 10:52

The H5N1 bird flu virus has infected and killed hundreds of people, despite the fact that, at the moment, the virus can't spread easily between people. The death toll could become much worse if the virus became airborne. A study published by Cell Press April 10th in the journal Cell has revealed a minimal set of mutations allowing H5N1 to be transmitted through the air from one ferret to another. The findings will be invaluable for future surveillance programs and may provide early warning signals of the emergence of potential pandemic strains.

 

South American oilbird represents 80 million years of distinct evolution Thursday, April 10, 2014 - 10:39

A new study shows that South American oilbird is the most genetically distinct bird and has not shared its genes with any other bird on the planet, in the last 80 million years. The cuckoo roller of Madagascar also remained evolutionarily distinct for a long time, more than 65 million years.

 

Divergents detected by DNA methylation regulates duplicate genes Wednesday, April 9, 2014 - 11:16

In a new study led by Soojin Yi at Georgia Institute of Technology points the role of DNA methylation in regulating duplicate genes. DNA methylation is addition of a methyl group to the DNA nucleotide cytosine or adenine and some of this is heritable. This study found that small methyl group attaches to the duplicate genes and prevent that gene from being active providing explanation to why duplicate genes are lost eventually.

 

Does music promote alcohol brand and consumption in teen and young adults? Tuesday, April 8, 2014 - 20:30

According to a new study, alochol brand reference in popular music is strongly linked to binge drinking by teens and young adults.

 

New model combines multiple genomic data Tuesday, April 8, 2014 - 10:30

Data about DNA differences, gene expression, or methylation can each tell epidemiologists something about the link between genomics and disease. A new statistical model that can integrate all those sources provides a markedly improved analysis, according to two new papers.

Prion disease transmission and neurodegeneration: lessons from bank voles Thursday, April 3, 2014 - 16:00

Inter-species transmission of prions is fortunately a generally inefficient process, although devastating when it occurs. An exception to this is the case of a rodent called the bank vole which is universally susceptible to prion transmission from multiple other species. This tendency was exploited in a paper from researchers in the University of California to help gain information on prevention of prion transmission. The paper is published on 3rd April in the journal PLoS Pathogens.