Method and compositions to promote plant growth in metal contaminated environments
AssigneeThe Regents of the University of California
InventorPaul Brian Larsen
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Abstract
The disclosure provides polynucleotides, polypeptides, transgenic plants, cells and vectors useful for crop plants to augment the basal level of aluminum and heavy metal tolerance.
Claims10
A method for phytoremediation of soil, groundwater, industrial waste or water contaminated with at least one metal ion selected from the group consisting of aluminum, copper, cobalt, zinc, antimony, mercury, cadmium, arsenate and arsenite, the method comprising the step of contacting a plant with at least one polyamine agent the promotes polyamine synthesis or polyamine levels in the plant.
A method for phytoremediation of soil, groundwater, industrial waste or water contaminated with at least one metal ion selected from the group consisting of aluminum, copper, cobalt, zinc, antimony, mercury, cadmium, arsenate and arsenite, the method comprising upregulating polyamine synthesis in a plant or expressing a heterologous polyamine metabolism gene in a plant that promotes polyamine synthesis or levels in the plant.
A method of promoting plant growth on soil, groundwater, industrial waste or water contaminated with at least one metal ion selected from the group consisting of aluminum, copper, cobalt, zinc, antimony, mercury, cadmium, arsenate and arsenite, the method comprising contacting the plant or the plant's environment with at least one polyamine agent wherein the at least one polyamine agent promotes plant growth compared to a plant or environment not contacted with the at least one polyamine agent.
A method of growing plants in an environment contaminated with at least one metal ion selected from the group consisting of aluminum, copper, cobalt, zinc, antimony, mercury, cadmium, arsenate and arsenite comprising contacting the environment with (i) a transgenic plant comprising non-natural polyamine synthesis, or (ii) at least one polyamine agent that increases polyamine content of the plant.
(canceled)
Dependencies are inferred from the claim text.