They found rgs-CaM, otherwise known as gtobacco calmodulin-like proteinh, a calcium-binding messenger protein (Calmodulin is an abbreviation for gCALcium MODulated proteIN). In tobacco this protein binds to the viral (RNA interference) suppressors (molecules produced by the virus that chemically counteract the plantsf own defenses) and inhibits the virus from impeding the plantfs defenses.
These findings have the potential to enhance the immune systems for crops that are vulnerable to pesticide-resistant viruses. The results of this research may well have an impact beyond tobacco crops. gBecause most viruses encode RNAi suppressors, this study may contribute to the development of a molecular breeding strategy to confer resistance other viruses in crops,h said Associate Prof. Nakahara.