Patent ID: 7582809

Claim:
A method of producing a genetically transformed plant wherein the method comprises: (a) cloning or synthesizing a nucleic acid molecule encoding a Al-inducible citrate efflux transporter polypeptide, wherein said nucleic acid molecule is selected from the group consisting of: (i) the nucleic acid molecule shown in SEQ ID NO:1; (ii) a nucleic acid molecule encoding SEQ ID NO:4; and (iii) a nucleic acid molecule encoding an amino acid sequence at least 95% identical to the amino acid sequence shown in SEQ ID NO:4, wherein said nucleic acid molecule encodes a polypeptide capable of providing tolerance to aluminum to a plant; (b) inserting the nucleic acid molecule in a vector so that the nucleic acid molecule is operably linked to a promoter; (c) insert the vector into a plant cell or plant seed; (d) expressing said nucleic acid molecule in said plant cell or seed; and (e) regenerating a plant from the plant cell or plant seed, wherein tolerance to aluminum in the plant is increased compared to a wild type plant.