Cellulose is the primary component of the xylem which is the essence of lumber.The way that cloning the genes relate to cellulose synthase,transforming these genes into plant vivo by genetic method,analyzing the function and interaction way of these genes may establish base to show the mechanism of the cellulose synthesis in xylem and explore one method by the genetic engineering to study cellulose biosynthesis mechanism in forest.The new way may carry on the improvement target-oriented to the fores...