PROBLEM TO BE SOLVED: To provide a transformed plant useful for utilizing wooden biomass, in which the quantitative character of secondary cell wall of woody fiber cells is improved and secondary cell wall formation is suppressed.SOLUTION: Provided is a transformed plant in which secondary cell wall formation of woody fiber cells is suppressed by transforming the plant using a nucleic acid encoding VNI2 under the control of NST3 promoter. Provided is a method useful for utilizing wooden biomass, by which growth of the plant is improved as compared with a wild type control a whole amount of biomass in the transformed plant increases and saccharification efficiency increases.SELECTED DRAWING: NoneCOPYRIGHT: (C)2017,JPO&INPIT【課題】木質繊維細胞の二次細胞壁の量的形質を改良し二次細胞壁形成を抑制した、木質バイオマス利活用に有用な形質転換植物の提供。【解決手段】NST3プロモーターの制御下にあるVNI2をコードする核酸により植物を形質転換することで、木質繊維細胞の二次細胞壁形成が抑制された形質転換植物。そのことにより野生型対照と比較して成長が良くなって全バイオマス量前記形質転換植物が増大し、かつ糖化効率が高まるという木質バイオマスの利活用に有用な方法。【選択図】なし
