(1) Department of Pharmacognosy, College of Pharmacy, University of Minnesota, 55455 Minneapolis, MN, U.S.A.;(2) College of Pharmacy, Grand Central and Utopia Parkways, St. John's University, 11439 Jamaica, NY, U.S.A.
Abstract:
Light consistently increased the pyrethrin content of pyrethrum shoot organ cultures. Under the experimental conditions used, the pyrethrin increase was not dependent upon a constant light supply.