Materials and method for increasing a plant's resistance to stress
AssigneeIowa State University Research Foundation, Inc.
InventorsLing Li, Eve Syrkin Wurtele
Life of this patent
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Abstract
Method of increasing resistance to a pathogen or a pest in a plant comprising introducing into the plant and expressing therein a polynucleotide comprising a nucleotide sequence encoding a Qua-Quine Starch (QQS) polypeptide; method of producing a plant with increased resistance to a pathogen or a pest comprising crossing a plant obtained in accordance with the above method with a second plant to produce progeny plants and selecting progeny plants with increased resistance to a pathogen or a pest; a plant with increased resistance to a pathogen or a pest; a seed of the plant; a hybrid of the plant; and a seed of the hybrid plant.
Claims18
A method of increasing resistance to a pathogen or a pest in a plant, said method comprising the steps of:
- (a) transforming plant cells with a polynucleotide comprising a nucleotide sequence encoding an Arabidopsis Qua-Quine Starch (QQS) polypeptide, wherein the nucleotide sequence is operably linked to a promoter;
- (b) regenerating transgenic plants from the transformed plant cells;
- and (c) identifying and selecting a transgenic plant that exhibits increased resistance to the pathogen or the pest as compared to an untransformed plant of the same species lacking the QQS polypeptide and grown under similar conditions, wherein the pathogen or the pest is a bacterium, a virus, or a fungus and the increased resistance to the pathogen or the pest is due to the expression of the QQS polypeptide in the selected transgenic plant.
A method of producing a plant with increased resistance to a pathogen or a pest, which method comprises crossing a transgenic plant, which comprises and expresses a polynucleotide comprising a nucleotide sequence encoding an Arabidopsis Qua-Quine Starch (QQS) polypeptide and operably linked to a promoter and wherein, due to the expression of the QQS polypeptide, the transgenic plant exhibits increased resistance to the pathogen or the pest as compared to a plant of the same species, which does not comprise and express the QQS polypeptide and is grown under similar conditions, with a second plant of the same species to produce progeny plants and selecting progeny plants that express the QQS polypeptide, and wherein the pathogen or the pest is a bacterium, a virus, or a fungus.
Dependencies are inferred from the claim text.