NOVELTY - Generating a transgenic plant having decreased recalcitrance or increased growth compared to a control plant grown under same conditions, comprises transforming a cell of a plant with a polynucleotide to obtain a recombinant plant cell, and generating the transgenic plant from the recombinant plant cell, where the plant has increased expression of a coding region encoding a pectin acetylesterase (PAE) polypeptide compared to a control plant.    USE - The method is useful for generating a transgenic plant (such as monocot plant and a woody plant) having decreased recalcitrance or increased growth to produce biomass, a pulp of biomass, a metabolic product such as alcohol (e.g. ethanol, butanol and diol) and an organic acid, and generating a plant part such as a leaf, a stem, a flower, an ovary, a fruit, a seed, and a callus (all claimed) to prepare plant material-derived product such as lumber (including dimensional lumber and engineered lumber), paper products, plant biomass-derived biomaterials, and agricultural product, where the biomass is useful for generating biofuel and biomaterial, the plant such as switchgrass (Panicum virgatum), millet (including foxtail millet), turfgrass, sugar beet, lettuce, carrot, strawberry, cassava, sweet potato, Geranium and soybean plants, and the plant parts are used as a feedstock for a livestock.    ADVANTAGE - The method allows the transgenic plant to yield biomass with reduced recalcitrance and easy deconstruction and efficient use of wall structural polymers and components in a cost-effective manner, and ensures that the transgenic plant can be easily digested by an animal and efficiently converted into animal mass.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for:    (1) the transgenic plant comprising increased expression of a coding region encoding the PAE polypeptide compared to a control plant;    (2) use of the plant for the production of a metabolic product, where the application method comprises exposing a plant material obtained from the plant;    (3) a method for using the transgenic plant, comprising processing the transgenic plant to obtain a processed pulp; and    (4) producing the metabolic product comprising contacting a microbe with a composition comprising the processed pulp obtained from the transgenic plant.