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(11)    Patent No :    AP 2691   
(21)    Application No :    AP/P/2007/003942   
(22)    Filing Date :    05.08.2005   
(24)    Date of Grant &    16.07.2013   
           
(45)    Publication :

(30)  Priority Data       
(33) Country    (31) Number    (32) Date
US    60/602,440    18.08.2004

(84)    Designated State

BW    GM    GH    KE    LS    MW  MZ   NA   SL
SD    SZ    T Z    UG    ZM    Z
(73) Applicant(s)

MONSANTO DO BRASIL LTDA, Avenida das Nações Unidas, No. 12901, North Tower, 7th and 6th Floors, District of Brooklin Paulista, Saõ Paulo, Brazil 04578- 000,

Brazil
(72) Inventors

PAPES Fabio, Brazil

ARRUDA Paulo, Brazil

(74) Representative

GILL, GODLONTON & GERRANS

ZIMBABWE
(51)    International  Classification   A01H 1/00 (2006.01)
(54)    Title

Polynucleotides, DNA constructs and methods for the alteration of plant lignin content and/or composition

(57)    Abstract

Polynucleotides, DNA constructs and methods are disclosed for the modification of lignin content in plant tissues. Plants are transformed with a DNA molecule encoding an active S-adenosylmethionine decarboxylase (SAMdc) enzyme. The over-expression of a SAMdc gene in the plant's vascular

system leads to decreased S -adenosylmethionine availability and consequently

to an overall decrease in lignin content. Plant transformants harboring a SAMdc coding nucleic acid molecule are expected to demonstrate decreased

(56)    Documents Cited :    WAIE BHAVNA et al:    THU-HANG PHAM et al:    WO 95/14092 A    ROY MALABIKA et al:

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