Heat stable mutants of starch biosynthesis enzymes.,申请号ZA20030006963-传众专利搜索

Heat stable mutants of starch biosynthesis enzymes.

申请公布号：ZA200306963(B)

申请号：ZA20030006963

申请日期：2003.09.05

申请公布日期：2004.05.03

申请人：

UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.

发明人：CURTIS L. HANNAH;THOMAS W. GREENE;BRIAN BURGER

分类号：A01H5/00;C12N9/12;C12N15/29;C12N15/54;C12N15/82

主分类号：A01H5/00

摘要：The subject invention pertains to novel mutant polynucleotide molecules that encode enzymes that have increased heat stability. These polynucleotides, when expressed in plants, result in increased yield in plants grown under conditions of heat stress. In one embodiment, the polynucleotide molecules of the subject invention encode maize endosperm ADP glucose pyrophosphorylase (AGP) and soluble starch synthase (SSS) enzyme activities. Plants and plant tissue bred to contain, or transformed with, the mutant polynucleotides, and expressing the polypeptides encoded by the polynucleotides, are also contemplated by the present invention. The subject invention also concerns methods for isolating polynucleotides and polypeptides contemplated within the scope of the invention. Methods for increasing yield in plants grown under conditions of heat stress are also provided.