Michigan Technological University

Arborgen, LLC

International Paper Company

Vincent L Chiang

Daniel Carraway

Richard H Smeltzer

Luguang Wu

Gopi Krishna Podila

Chandrashekhar P Joshi

Chung Jui Tsai

Laigeng Li

Daniel T Carraway

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

Production of syringyl lignin in gymnosperms

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.

A method of concurrently introducing multiple genes to plants and trees is provided. The method includes an-mediated gene delivery system by which multiple genes together with a single selectable marker gene are simultaneously transferred and inserted into the genome of plants, including trees.

Method of introducing a plurality of genes into plants

This invention relates to an isolated cellulose synthase promoter, methods for genetically altering cellulose and lignin biosynthesis, and to methods for improving strength properties of juvenile wood and fiber in trees. The invention further relates to methods for identifying regulatory elements in a cellulose synthase promoter and to methods for augmenting expression of polynucleotides operably linked to a cellulose synthase promoter.

Cellulose synthase promoter and method for modifying cellulose and lignin biosynthesis in plants

The invention relates to isolated polynucleotides encoding functional cellulose synthases and UDP-glucose binding domain thereof, transgenic plants and plant cells transformed with the polynucleotides. The invention further relates to methods of transforming plants and plant cells with cellulose synthase or UDP-encoding polynucleotides.

Cellulose synthase encoding polynucleotides and uses thereof

An Agrobacterium-mediated transformation and regeneration method for plants including a transformation method to produce transgenic plants with an altered lignin composition.

Genetic transformation and regeneration of plants

The invention relates to genetically engineering the wood color of woody plants by incorporation of the lignin pathway gene O-methyltransferase into the genome of the plants.

Growing community of inventors

Hancock, MI, United States of America

Vincent L Chiang