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AssigneeNorth Carolina State University
InventorsAMY MICHELE GRUNDEN, HEIKE INGE ADA SEDEROFF, ROOPA D. YALAMANCHILI
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This invention relates to compositions and methods for reducing reactive oxygen species in plants, yeast, algae or bacteria by transforming a plant, yeast or bacteria with a heterologous polynucleotide encoding a superoxide reductase from an archaeon species. The invention also provides methods for protecting a photosynthetic reaction center, for reducing photorespiration and/or for increasing the photosynthetic efficiency of plants or cyanobacteria as well as methods for increasing tolerance to abiotic stress in plants, yeast or bacteria by transforming a plant, yeast, or bacteria with a heterologous polynucleotide encoding a archaeon superoxide reductase. Methods for delaying senescence, reducing lignin polymerization and increasing accessibility of cell wall cellulose to an enzyme in a plant by transforming the plant with a heterologous polynucleotide encoding an archaeon superoxide reductase are also provided. Additionally, transformed plants, yeast and bacteria are provided as well as products produced from the transformed plants, yeast and bacteria.
A stably transformed plant, plant cell, plant part, yeast cell or bacterial cell comprising a heterologous polynucleotide encoding a superoxide reductase (SOR) from an archaeon species, wherein the superoxide reductase is localized in the cytosolic membrane, the chloroplast, the peroxisome, the cell wall, mitochondria, periplasm and/or as a membrane associated protein of the transformed plant, plant cell, plant part, yeast cell or bacterial cell.
An expression cassette comprising an isolated nucleic acid having:
Dependencies are inferred from the claim text.