Induction and Regeneration of Callus Initiated from Young Leaves of Maize ISOLATION OF THE PLASMA MEMBRANE (PM) IN THE MAIZE YOUNG LEAVES GROWTH ZONE BY TWO PHASE PARTITION Advances in Research of Aposematic Coloration in Plants INSECT HERBIVORY PATTERNS ON LEAVES OF CASTANOPSIS FARGESII DURING LEAF EXPANSION IN EVERGREEN BROAD-LEAVED FOREST IN EASTERN CHINA Physiological Responses of Populus alba var. pyramidalis Leaves with Different Maturity to Alkali Stress Optimization of Chromosome Sectioning and Karyotype Analysis of Schisandra sphenanthera Rehd.et Wils. Study on regeneration system from callus of Rehmannia chingii falbiflora Essential oils from the leaves of Cinnamomum camphora