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Virus may help infuse goods traits in crops

Washington, Tue, 05 Jan 2010 ANI

Washington, Jan 5 (ANI): Scientists for Texas AgriLife Research have found a virus that can be used to inculcate goods traits into the crops the plant breeders are developing.

 

According to lead researchers Karen-Beth Scholthof and her husband Dr. Herman Scholthof, plant viruses may work like a trucking service loaded to carry freight to its destination.

 

"The idea is to have a virus do something good for us, like express a foreign protein and carry genetic information into a cell," said Herman Scholthof.

 

"The use of viral vectors to produce proteins in plants is attractive because of the potential high-protein output, the transient nature, the rapid applicability and active expression and the relative cost-effectiveness of the system," the Scholthofs added.

 

However, a problem with this type of system has been that during transport a virus loses the gene or whatever it is intended to express.

 

"We're trying to outsmart the virus and make it stable for the job," Karen-Beth said.

 

Herman noted "a virus recognizes a foreign object and does away with it."

 

During the study, the researchers were able to prove that the coat or particle protein of satellite panicum mosaic virus could be used as a tool to help stabilize viral vector genes introduced in Nicotiana bethamiana, a relative of tobacco and a model plant for research.

 

Satellite panicum mosaic virus only infects grass that is already infected with panicum mosaic virus, the pathogen that causes St. Augustine decline.

 

The Scholthofs said if the virus particle protein were able to transport a gene into a non-grass species, this is an indication that with further research it could be used in a positive way to help plant breeders who want to carry good traits into the crops they are developing.

 

The study is published in the journal Virology. (ANI)

 


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