Production of syringyl lignin in gymnosperms
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United States of America Patent
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Jun 26, 2012
Grant Date -
Jul 28, 2011
app pub date -
Jun 24, 2010
filing date -
Dec 16, 1996
priority date (Note) -
Expired
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Abstract
The present invention relates to a method for producing syringyl lignin in gymnosperms. The production of syringyl lignin in gymnosperms is accomplished by genetically transforming a gymnosperm genome, which does not normally contain genes which code for enzymes necessary for production of syringyl lignin, with DNA which codes for enzymes found in angiosperms associated with production of syringyl lignin. The expression of the inserted DNA is mediated using host promoter regions in the gymnosperm. In addition, genetic sequences which code for gymnosperm lignin anti-sense mRNA may be incorporated into the gymnosperm genome in order to suppress the formation of the less preferred forms of lignin in the gymnosperm such as guaiacyl lignin
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