Approaches useful for the control of root nodulation of legumino

Details Approaches useful for the control of root nodulation of legumino Approaches useful for the control of root nodulation of legumino

1987-08-20

1993-07-20

Fox, David T.

Drug, bio-affecting and body treating compositions

Whole live micro-organism, cell, or virus containing

Genetically modified micro-organism, cell, or virus

4352522, 435878, 47 576, 47 58, 71 7, A01N 6300, C12R 141, A01C 106, A01H 100, C05F 1108

Patent

active

052291146

ABSTRACT:
A novel approach for the increased dinitrogen fixation of leguminous plants wherein the root nodulation of the leguminous plant is controlled so as to promote nodulation by a desired bradyrhizobial strain and to inhibit nodulation of an undesired bradyrhizobial strain. Novel leguminous plant lines are provided which restrict nodulation by undesired bradyrhizobial strains while allowing nodulation of a desired bradyrhizobial strain. The plant lines are produced by conventional breeding. Recombinant bradyrhizobial strains are also provided which are characterized by a propensity for root nodulation of a predetermined leguminous plant. The recombinant bradyrhizobial strains are produced by genetic engineering.

REFERENCES:
Cregan et al. 1986 Crop Science 26(5):911-916.
Devine et al. 1980. Can. J. Microbiol. 26(2): 179-182.
Vest et al. 1972, Crop Science 12:692-693.
Devine et al. 1977, Euphytica 26: 527-535.
V. G. Reyes et al., "Population Densities of Rhizobium japonicum Strain 123 Estimated Directly in Soil and Rhizospheres," Appl. Environ. Microbial, 37: 854-858 (1979).
E. P. Dunigan et al., "Introduction and Survival of an Inoculant Strain of Rhizobium japonicum in Soil," Agron. J. 76: 463-466 (1984).
G. E. Ham, "Competition Among Strains of Rhizobia," World Soybean Res. Interstate Printers & Publishers, L. D. Hill (ed) pp. 144-150 (1976).
W. R. Ellis et al., "Persistence and Recovery of Rhizobium japonicum Inoculum in a Field Soil," Agron. J. 76: 573-576 (1984).

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