Method for improving saccharification property of inedible part of crop, and crop having improved saccharification property

JP2026036563APending Publication Date: 2026-03-05TOHOKU UNIV
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Patent Information

Application Number
JP2024139244
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-08-20
Publication Date
2026-03-05

AI Technical Summary

Technical Problem

Existing methods for improving saccharification of inedible crop parts, such as rice straw, face challenges in efficiency and cost, and often require the use of edible parts, leading to competition with food crops and environmental issues.

Method used

Introducing a cytokinin synthase gene under the control of a senescence-induced promoter to enhance saccharification in inedible crop parts, specifically rice straw, without affecting edible parts or grain yield, using intragenesis to avoid regulatory restrictions.

Benefits of technology

Enhances saccharification of inedible crop parts, reducing production costs and enabling efficient bioethanol production from rice straw, while avoiding classification as a genetically modified organism.

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Abstract

To provide a method for producing a food crop having improved saccharification properties of an inedible part for utilizing the edible part of the food crop as it is and utilizing the inedible part treated as an agricultural residue as bioethanol.SOLUTION: A cytokinin-synthesizing enzyme gene is placed under the control of a promoter inducing expression in the senescence stage and introduced into a food crop, whereby cytokinin is synthesized in the maturation stage to improve saccharification properties.SELECTED DRAWING: FIG. 5B
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Citation Information

Patent Citations

  • Energy crops for improved biofuel feedstock

    JP2009528033A

  • Method for improving saccharification efficiency of plant, plant, method for producing biomass ethanol, and method for evaluating saccharification easiness of plant

    JP2012191914A