Disease resistant transgenic plants comprising a tomato aspermy virus 2b gene
OwnerShou-Wei Dinginventor
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Abstract
Transgenic plants transformed with a tomato aspermy virus 2b gene or active fragment thereof exhibit resistance to diseases caused by infectious pathogens, such as viruses. Expression of the 2b gene causes activation of hypersensitive response and expression of pathogenicity-related proteins in plants that are incapable of such a response to certain pathogens. Transformation of a wide variety of plants with expression vectors in which the tomato aspermy virus 2b gene is operably linked to a plant-active promoter renders the plant resistant to pathogenic infection.
Claims19
A transgenic plant stably transformed with a tomato aspermy virus 2b gene, or a fragment of said gene which confers a hypersensitive response in a plant transformed therewith, operably linked to a promoter that effects expression of said gene or said fragment in said plant when said plant is infected with a pathogenic organism, wherein said transgenic plant has enhanced resistance to said pathogenic organism compared to an untransformed plant.
A method for enhancing the resistance of a plant to a disease caused by an infectious pathogenic agent, which comprises stably transforming plant with a tomato aspermy virus 2b gene, or a fragment of said gene which confers a hypersensitive response in a plant transformed therewith operatively linked to a promoter that effects expression of said gene or said fragment in said plant when said plant is infected with a pathogenic organism, wherein said plant has enhanced resistance to said pathogenic organism compared to an untransformed plant.
An expression vector comprising a tomato aspermy virus 2b gene or fragment of said gene which confers a hypersensitive response in a plant transformed therewith, operably linked to a plant-active promoter.
Dependencies are inferred from the claim text.