POLYNUCLEOTIDES, DNA CONSTRUCTS AND METHODS FOR THE ALTERATION OF PLANT CELLULOSE CONTENT

摘要

Polynucleotide, DNA constructs and methods are disclosed for the modification
of cellulose content in plant tissues. Plants are transformed with constructs
encoding either an active Anabaena sp. sucrose synthase gene or a soybean
nodule sucrose synthase gene, which leads to increased cellulose content when
over-expressed under the control of a cambium/xylem preferred promoter. Plant
transformants harboring an Anabaena sp. or a soybean nodule sucrose synthase
gene demonstrated increased content of cellulose, a trait that is thought to
improve woody trees for cellulose extraction during pulping and papermaking.