Symbiotic properties of Bradyrhizobium sp. (Lupinus) assayed on serradella plants

Mieczysława Deryło, Józef Bednara, Maria Głowacka, Anna Skorupska

Abstract


Physiological and symbiotic properties of Bradyrhizobium sp. (Lupinus) nodule isolates were compared to the standard slow-growing Bradyrhizobium sp. (Lupinus) strain USDA 3045. Lupine nodules isolates showed typical characteristics for bradyrhizobial strains and nodulated small seed legume, serradella (Ornithopus sativus), in tube test. We observed a permanent physiological segregation of the effective (Fix') and ineffective (Fix-) symbiotic phenotype for all tested bradyrhizobial strains during the growth of serradella in plant tube test. The ultrastructural differences between Fix* and Fix serradella nodules were observed. Rapid and visible nodulation as well as easy assay of the reduction of acetylene make serradella a convenient system for studies of Bradyrhizobium sp. (Lupinus) strains in laboratory conditions.

Keywords


Bradyrhizobium sp. (Lupinus, Ornithopus); serradella; plant test

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DOI: https://doi.org/10.5586/asbp.1995.046

Journal ISSN:
  • 2083-9480 (online)
  • 0001-6977 (print; ceased since 2016)
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Publisher
Polish Botanical Society