Method for increasing manganese content in low-cadmium rice body

By overexpressing the OsMTP9 protein in low-cadmium rice and utilizing a recombinant expression vector and appropriate promoter regulation, the problem of insufficient manganese content in low-cadmium rice was solved, thereby increasing manganese content and reducing the risk of yield reduction.

CN120842340APending Publication Date: 2025-10-28HUNAN HYBRID RICE RES CENT
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Patent Information

Application Number
CN202410513358.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-04-26
Publication Date
2025-10-28

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Abstract

The invention discloses a method for increasing the manganese content in low-cadmium rice. The invention provides application of OsMTP9 protein in regulation and control of manganese content in low-cadmium rice. The OsMTP9 protein is any one of the following proteins: (A1) a protein with an amino acid sequence of SEQ ID No.1; (A2) a protein which is obtained by substitution and / or deletion and / or addition of amino acid residues on the amino acid sequence as shown in SEQ ID No.1 and has the same function as that of the amino acid sequence as shown in SEQ ID No.1; (A3) protein which is derived from rice, has 80% or more of identity with the amino acid sequence in (A1) or (A2) and has the same function with the amino acid sequence in (A1) or (A2); and (A4) a fusion protein obtained by connecting a protein tag to the N terminal and / or C terminal of any one of the proteins (A1)-(A3). By overexpressing the rice OsMTP9 in the OsNramp5 mutant, a novel low-cadmium and manganese-adaptive rice material can be created, which lays a theoretical foundation for enhancing the adaptability of the OsNramp5 mutant to the ecological environment and stress and reducing the risk of yield reduction.
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Citation Information

Patent Citations

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    CN101063139A

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Cited By

  • Application and methods of OsMYB2L gene in regulating cadmium and / or manganese content in rice

    CN122405711A