Effects of Icarrin on Secretive Function of Cultured Granulosa and Adrenal Cortical Cells of Rats Studies on the Character istic of the Structures in the Cortical Cells of Gastrodia clara after Infection of Armillaria mellea Ultrastructural Localization of Cellulase Acitvity in Lytic Root Cortical Cells during Aerenchyma Formation of Flooded Maize