Monday, January 30, 2012
The bottom of a glacier is not the most hospitable place on Earth, but at least two types of bacteria happily live there, according to researchers. The bacteria -- Chryseobacterium and Paenisporosarcina -- showed signs of respiration in ice made in the laboratory that was designed to simulate as closely as possible the temperatures and nutrient content found at the bottom of Arctic and Antarctic glaciers, said Corien Bakermans, assistant professor of microbiology, Penn State Altoona. She said that carbon dioxide levels in the laboratory-made ice containing the bacteria, which were collected from glaciers in Greenland and Antarctica, indicated that respiration was occurring at temperatures ranging from negative 27 to positive 24 degrees Fahrenheit. (more)
Thursday, May 07, 2009
Swine flu is no mystery to scientists in Penn State's College of Agricultural Sciences, who have been keeping a wary eye on the virus in pigs for decades and researching better vaccines to prevent it, methods to limit its spread, and ways to predict and gauge the risks it poses to human health. (more)