TECHNOLOGY FOCUS - BIOTECHNOLOGY - Preparation (Claimed): The production of transgenic monocot plant proteins, involves (a) providing a first transgenic monocot plant including the DNA or at least 80% homology to bglA gene, a base sequence of gcgggcggcggctattg (SEQ ID No. 1) of B.fibrisolvens encoding beta -glucosidase to a subcellular compartment of the transgenic monocot plant, and a second transgenic monocot plant encoding an enzyme other than the beta -glucosidase which degrades cellulose, mating by sexual fertilization the first and the second transgenic monocot plants to produce a third transgenic monocot plant which includes the DNA encoding the beta -glucosidase and the DNA encoding the enzyme other than beta -glucosidase, grinding the monocot plant after the enzymes have accumulated, and extracting the plant proteins, or (b) providing a first transgenic monocot plant which includes the DNA encoding a xylanase having a DNA sequence at least 80% homology to XYL1 gene, a defined sequence of 2031 base pairs (SEQ ID No. 16) given in the specification, to a subcellular compartment of the transgenic monocot plant, and a second transgenic monocot plant encoding an enzyme other than the xylanase which degrades cellulose, mating by sexual fertilization the first and the second transgenic monocot plants to produce a third transgenic monocot plant which includes the DNA encoding the xylanase and the DNA encoding the enzyme other than xylanase, grinding the monocot plant after the enzymes have accumulated, and extracting the plant proteins. Preferred Plant: The plant is chosen from maize, wheat, barley, rye, hops, hemp, rice and grasses, preferably maize. The DNA encoding the signal peptide is operably linked to endoplasmic reticulum leading sequence (ER) as the subcellular compartment. The promoter is cauliflower mosaic virus (CaMV) 35S and the terminator is CaMV 35S-T. The second DNA encoding a cellulase is included. The B.fibrisolvens is derived from cow rumen. The transgenic monocot plant further includes a DNA encoding a selectable marker operably linked to a constitutive promoter. The DNA encoding the selectable marker provides the transgenic monocot plant with resistance to antibiotic, herbicide, or to environmental stress. The DNA encoding resistance to the herbicide is a DNA encoding phosphinothricin acetyl transferase which confers resistance to the herbicide phosphinothricin. The subcellular compartment is the apoplast of the plant. The subcellular compartment is apoplast endoplasmic reticulum vacuole, chloroplast or mitochondria of the plant. The transgenic monocot plant is ground and extracted to produce the plant protein by providing in the monocot plant DNA encoding xylanase having DNA sequence of at least 80% homology to XYL1 gene, a defined sequence of 2031 base pairs (SEQ ID No. 16) given in the specification, which is operably linked to a nucleotide sequence encoding a signal peptide that directs the xylanase to a subcellular compartment of the transgenic monocot plant, grinding the monocot plant material after the xylanase has accumulated, and extracting the plant protein, optionally mixing the plant protein with another plant protein encoding a cellulase and optionally mixing with a commercially available enzyme produced by a bacterium. Preferred Method: The transformed progeny of the third transgenic monocot plant which includes the DNA encoding the beta -glucosidase and the DNA encoding the enzyme other than beta -glucosidase are mated by sexual fertilization to a transgenic monocot plant chosen from first, second, and third transgenic monocot plants to produce a transgenic monocot plant comprising different copies of the DNA encoding the beta -glucosidase and different copies of the DNA encoding the cellulase. The method further involves adding a plant material from a non-transgenic monocot plant to extracted plant proteins, and fermenting the sugars to ethanol. The monocot plant comprises DNA encoding the flowering locus C (FLC) gene. The DNA encoding xylanase is the XYL1 gene. The transformed progeny of the third transgenic monocot plant which includes the DNA encoding the xylanase and the DNA encoding the enzyme other than xylanase are mated by sexual fertilization to a transgenic monocot plant chosen from the first, second, and third transgenic monocot plants to produce a transgenic monocot plant comprising multiple copies of the DNA encoding the xylanase and multiple copies of the DNA encoding the enzyme other than the xylanase. EXAMPLE - The maize callus was transferred to callus proliferation medium and cultured for 5 days, and then transferred to selection medium containing bialaphos (2 mg/l) and maintained for 6-8 weeks. The bialaphos-resistant surviving callus clones were placed in regeneration medium and exposed to continuous light for 4-6 weeks. The plantlets were transferred to rooting medium containing bialaphos selectable herbicide (2 mg/l) and maintained for 2-4 weeks. Rooted plantlets (8-10 cm) were transferred to soil pots to transgenic plant which were grown for 35-45 days. The genomic DNA was extracted from the leaf tissue of above transgenic plant and subjected to PCR using primers gcgggcggcggctattg (SEQ ID No. 1) and gccgacaggatcgaaaatcg (SEQ ID No. 2). The obtained PCR products were analyzed by electrophoresis, and then subjected to Western blotting to obtain 100 kDa transgenic protein.