New gene silencing pathway found in plants
Biologists at Washington University in St. Louis have made major headway in explaining a mechanism by which plant cells silence potentially harmful genes. A team led by Craig Pikaard, Ph.D., WUSTL professor of biology in Arts & Sciences, has published a paper this month in Cell, that explains how RNA polymerases work together to use the non-coding region of DNA to prevent destructive, virus-derived genes from being activated.
New type of RNA polymerase discovered in plants
*Arabidopsis thaliana*A team headed by Craig Pikaard, Ph.D., Washington University professor of biology in Arts & Sciences, has discovered a fourth kind of RNA polymerase found only in plants and speculated to have been a plant feature for more than 200 million years.