Symbiotic properties of some auxotrophic mutants ofRhizobium meliloti and of their prototrophic revertants

@article{Scherrer2007SymbioticPO,
  title={Symbiotic properties of some auxotrophic mutants ofRhizobium meliloti and of their prototrophic revertants},
  author={Agn{\`e}s Scherrer and Jean D{\'e}nari{\'e}},
  journal={Plant and Soil},
  year={2007},
  volume={35},
  pages={39-45}
}
1. Auxotrophic mutants of 2 strains ofRhizobium meliloti have been isolated: among them 4 are purine or pyrimidine-dependent (adenine, cytosine), 4 are sulfur amino acid-dependent (methionine, cysteine) and 3 glycine-dependent. 2. All of these mutants induce nodule formation on lucerne (variety ‘Du Puits’). 3. There are associations between nutritional requirements and effectiveness in nitrogen fixation on this host. All the amino acid-dependent mutants are effective. Glycine-dependent mutants… CONTINUE READING