Effect of exogenous application of rhizopine on lucerne root nodulation

  • CI Owuama
  • PJ Murphy

Abstract

Rhizopine, 3-0 -methyl scyllo-inosamine was applied to the roots of luceme seedling inoculated with either  rhizopine synthesizing Sinorhizobium meliloti strain L530 or the non-rhizopine synthesizing strain Rm 1021 . There was an initial delay in nodule formation. A significant increase in the number of nodules formed in  rhizopine treated roots was observed compared with seedling roots inoculated with the rhizobial strains but not treated with rhizopine. The same numbers of nodules were observed after 30 days in the rhizopine treated rootlets inoculated with either the rhizopine or non-rhizopine rhizobial strain, indicating that rhizopine catabolism had no effect on nodule formation. Slight difference was observed after 30 days in the number of nodules on roots inoculated with the rhizopine or non-rhizopinc strains but not treated with rhizopine.

Running title: of rhizopine on nodulation

Published
2015-11-20
Section
Articles

Journal Identifiers


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print ISSN: 01891731