Title: Key gene regulating plant cell wall recalcitrance

Abstract

This disclosure provides plants having desirable levels of lignin synthesis, sugar release, S/G ratio, and resistance to stress and pathogens; methods of selecting plants with such desirable levels of lignin synthesis, sugar release, S/G ratio, and resistance to stress and pathogens; methods of genetically modifying plants to modulate lignin synthesis, sugar release, S/G ratio, and resistance to stress and pathogens; and uses of such plants. The inventors have determined that the expression and/or activity of POPTR_0014s08530, a gene encoding an Angustifolia/CtBP transcription factor, modulates lignin synthesis, sugar release, S/G ratio, and resistance to stress and pathogens in plants. Plants with lignin synthesis, sugar release, S/G ratio, and resistance to stress and pathogens, based on modulation of the expression or activity of the POPTR_0014s08530 gene, have divergent uses including pulp and paper production, and ethanol/biofuel production.

Inventors:

Chen, Jay; Gunter, Lee E.; Jawdy, Sara; Wellington, Muchero; Tuskan, Gerald; Guo, Jianjun; Ranjan, Priya; DiFazio, Stephen P.; Bryan, Anthony C.

Issue Date:

Tue Jun 12 00:00:00 EDT 2018

Research Org.:

Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1457723

Patent Number(s):

9994998

Application Number:

14/638,838

Assignee:

UT-BATTELLE, LLC (Oak Ridge, TN)

Patent Classifications (CPCs):

C - CHEMISTRY C12 - BIOCHEMISTRY C12N - MICROORGANISMS OR ENZYMES

D - TEXTILES D21 - PAPER-MAKING D21C - PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS

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C - CHEMISTRY C12 - BIOCHEMISTRY C12N - MICROORGANISMS OR ENZYMES

C12N15/8255 - {involving lignin biosynthesis}
C12N15/8271 - {for stress resistance, e.g. heavy metal resistance}

D - TEXTILES D21 - PAPER-MAKING D21C - PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS

D21C3/00 - Pulping cellulose-containing materials

D - TEXTILES D21 - PAPER-MAKING D21H - PULP COMPOSITIONS

D21H11/00 - Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
D21H11/12 - Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
D21H11/20 - Chemically or biochemically modified fibres

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DOE Contract Number:  

AC05-00OR22725

Resource Type:

Patent

Resource Relation:

Patent File Date: 2015 Mar 04

Country of Publication:

United States

Language:

English

Subject:

59 BASIC BIOLOGICAL SCIENCES