Screening and cloning ligninolytic strain and cellulase gene expression Change of Organic Matter in the Decomposing Oak Twigs in the Temperate Forest Ecosystems Chemical Structure of Waterlogged Coffin Wood from No. 7 Ancient Tomb in Changtaiguan,Xinyang,Henan Province,China Effect of GA3 and IAA on the Dynamic Accumulation of Holocellulose and Chlorophyl Content in Neosinocalamus affinis