Plants, Phenols - metabolism, 4-beta Xylanases - metabolism, Aspergillus niger - enzymology, Carboxylic Ester Hydrolases - metabolism, Cell Wall - metabolism, Cellulase - metabolism, Coumaric Acids - metabolism, Endo-1, Endoplasmic Reticulum - enzymology, Festuca - genetics, Festuca - metabolism, Genetically Modified - genetics, Genetically Modified - metabo...