Effects of La~(3+) on Callus Culture form Young Leaves of Ginkgo Biloba L.
MA Yun_feng 1, SHANG Fu_de 1,XUE Gui_ling 2 ( 1. Biological Department of Henan University, Henan Kaifeng 475001, China; 2. Second People's hospital of Kaifeng, Henan Kaifeng 475001, China )
Various concentrations of La 3+ are added to media to culture the callus of Ginkgo biloba L . The growth ratios of callus containing La 3+ of 10 -4 g/L,10 -3 g/L,10 -2 g/L, 10 -1 g/L are superior to that of control, and 10 -4 g/L is the most adaptive concentration. The similar results have been gained in the subculture.