Cloning and Expression Analysis of Copper and Zinc Superoxide Dismutase (Cu/Zn-SOD) Gene from Brassica campestris L. Research on artificial reproduction of Acipenser schrencki in lower temperature environment EFFECTS OF LOW TEMPERATURE ON PHOTOSYNTHESIS OF SWEET PEPPER UNDER LOW LIGHT Cloning, Expression, and Activity Analysis of Ascorbate Peroxidase (APX) Gene from Winter Turnip Rape (Brassica campestris L.)