MICRONUCLEUS AND ANAPHASE ABERRATIONS IN VICIA FABA ROOT TIPS INDUCED BY THE DERIVATIVES OF SULFUR DIOXIDE Toxicity of surfactant,acid rain and Cd2+ combined pollution to the nucleus of Vicia faba root tip cells THE ACCUMULATION OF HYDROGEN PEROXIDE FUMIGATED WITH SULFUR DIOXIDE In RELATION TOLIPID PEROXIDATION IN LEAVES OF FABA BEAN,VICIA FABA L. The NADPH Oxidase Is Likely Involved in ABA-Induced Stomatal Guard Cell Movement in Vicia faba Ni^2+和Cu^2+离子对蚕豆根生长和根尖核仁的影响