The University of Saskatchewan and one of its well-known professors are acting like "sock puppets" for agri-business giant Monsanto, says a U.S. researcher.

Gary Ruskin of U.S. Right to Know has obtained thousands of pages documenting North American university ties to corporations involved in genetic engineering.

Ruskin recently shared with CBC News nearly 700 pages of U of S emails and other material. Ruskin said the documents show Monsanto has recruited a team of top academics in a "Machiavellian" effort to sway public opinion.