Stress tolerant plants
AssigneeConsejo Superior De Investigaciones Cientificas (Csic)
InventorsVicente Rubio Munoz, Elisa Iniesto Sanchez, Maria Luisa Irigoyen Miguel
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Abstract
The invention relates to transgenic plants and methods for modulating abscisic acid (ABA) perception and signal transduction in plants. The plants fmd use in increasing yield in plants, particularly under abiotic stress.
Claims80
A method for increasing yield and/or growth of a plant under stress conditions or mitigating the impact of a plant under stress, said method comprising introducing and expressing in said plant a nucleic acid construct comprising a plant DDA I nucleic acid sequence.
A method for reducing a plant response to abscisic acid (ABA), or modulating the interaction of the PYL8 receptor with the same, said method comprising introducing and expressing in said plant a nucleic acid construct comprising a plant DDA1 nucleic acid sequence.
(canceled)
A method for reducing seed dormancy said method comprising introducing and expressing in said plant a nucleic acid construct comprising a plant DDA1 nucleic acid sequence.
(canceled)
A method for producing a transgenic plant with improved yield/growth under stress conditions said method comprising introducing and expressing in said plant a nucleic acid construct comprising a plant DDA1 nucleic acid sequence.
A method according to claim wherein said stress is abiotic stress.
A transgenic plant with an altered response to ABA wherein said plant expresses a nucleic acid construct comprising a plant DDA 1 nucleic acid sequence.
A product derived from a plant as defined in claim or from a part thereof.
A vector comprising a plant DDA1 nucleic acid sequence.
The use of a DDAI plant nucleic acid sequence in reducing a plant response to ABA.
The use of a DDAI plant nucleic acid sequence in reducing seed dormancy.
The use of a DDA 1 plant nucleic acid sequence in increasing yield/growth of a plant under stress conditions.
A plant with increased expression of an endogenous DDA1 plant nucleic acid sequence wherein said endogenous DDA1 promoter carries a mutation introduced by mutagenesis or genome editing which. results in increased expression of the DDA1 gene.
A plant with increased stability of the endogenous DDA1 polypeptide wherein said endogenous DDA1 nucleic acid sequence carries a mutation introduced by mutagenesis or genome editing and which results in increased stability of the DDA1 protein,
A method for increasing expression of a DDA1 plant nucleic acid sequence or improving stability of a DDA1 protein in a plant, producing plants, a method for mitigating the impacts of stress conditions on plant growth and yield and a method for producing plants with improved yield/growth under stress conditions comprising the steps of mutagenising a plant population, identifying and selecting plants with an improved yield/growth under stress conditions and identifying a variant DDA1 promoter or gene sequence.
Dependencies are inferred from the claim text.