In cells, as in cities, disposing of garbage and recycling anything that can be reused is an essential service. In both city and cell, health problems can arise when the process breaks down.
Using ever-growing genome data, scientists with the Department of Energy’s (DOE) Oak Ridge National Laboratory and the University of Tennessee are tracing the evolution of the bacterial regulatory system that controls cellular motility, potentially giving researchers a method for predicting important cellular functions that will impact both medical and biotechnology research.
Scientists have learned how a gene controls cell division, a finding that could be useful for understanding why increasing numbers of children are being born with genital malformations.
Research of how Galapagos marine iguanas respond to El Niño could provide insight into how wildlife in the Gulf of Mexico will respond to the current oil spill. In emergencies, animals secrete corticosterone to help them cope. However, prolonged hormone production can also be lethal.