Analysis of Cell Wall Components and Ultra-structure for Brittleness Mutation Rice An Investgation on Tablet Compressing of Chengxiang Lubailu Pian Kinetic study on cell wall components for brittleness mutation rice at different growth stages Anatomical and Chemical Alterations but not Photosynthetic Dynamics and Apoplastic Transport Changes are Involved in the Brittleness Culm Mutation of Rice