0000000000860243

AUTHOR

Marie-reine Allard

showing 2 related works from this author

Long-term effects of crop management on Rhizobium leguminosarum biovar viciae populations.

2004

Little is known about factors that affect the indigenous populations of rhizobia in soils. We compared the abundance, diversity and genetic structure of Rhizobium leguminosarum biovar viciae populations in soils under different crop managements, i.e., wheat and maize monocultures, crop rotation, and permanent grassland. Rhizobial populations were sampled from nodules of pea- or vetch plants grown in soils collected at three geographically distant sites in France, each site comprising a plot under long-term maize monoculture. Molecular characterization of isolates was performed by PCR-restriction fragment length polymorphism of 16S-23S rDNA intergenic spacer as a neutral marker of the genomi…

DNA BacterialBiovarPopulation Dynamicsmedicine.disease_causePoaceaeApplied Microbiology and BiotechnologyMicrobiologyPolymerase Chain ReactionZea maysRhizobium leguminosarumRhizobiaCrop03 medical and health sciencesRNA Ribosomal 16SBotanymedicinePoaceae[SDV.MP] Life Sciences [q-bio]/Microbiology and ParasitologyComputingMilieux_MISCELLANEOUSSoil MicrobiologyTriticum030304 developmental biology2. Zero hunger0303 health sciencesGenetic diversityRhizobium leguminosarumEcologybiologyfood and beveragesAgriculture04 agricultural and veterinary sciencesBiodiversity15. Life on landbiology.organism_classification[SDV.MP]Life Sciences [q-bio]/Microbiology and ParasitologyAgronomy040103 agronomy & agricultureNitrogen fixation0401 agriculture forestry and fisheriesMonocultureFEMS microbiology ecology
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Compatibility of Rhizobial Genotypes within Natural Populations of Rhizobium leguminosarum Biovar viciae for Nodulation of Host Legumes

2003

ABSTRACT Populations of Rhizobium leguminosarum biovar viciae were sampled from two bulk soils, rhizosphere, and nodules of host legumes, fava bean ( Vicia faba ) and pea ( Pisum sativum ) grown in the same soils. Additional populations nodulating peas, fava beans, and vetches ( Vicia sativa ) grown in other soils and fava bean-nodulating strains from various geographic sites were also analyzed. The rhizobia were characterized by repetitive extragenomic palindromic-PCR fingerprinting and/or PCR-restriction fragment length polymorphism (RFLP) of 16S-23S ribosomal DNA intergenic spacers as markers of the genomic background and PCR-RFLP of a nodulation gene region, nodD , as a marker of the sy…

GenotypeBulk soilBiologymedicine.disease_causeApplied Microbiology and BiotechnologyPlant RootsPolymerase Chain ReactionRhizobium leguminosarumRhizobiaPlant MicrobiologySymbiosisBacterial ProteinsNitrogen FixationBotanyGenotypemedicineSymbiosisSoil Microbiology[SDV.EE]Life Sciences [q-bio]/Ecology environmentRhizosphereRhizobium leguminosarumEcologyPeasfood and beveragesbiology.organism_classificationDNA FingerprintingVicia fabaVicia faba[SDV.EE] Life Sciences [q-bio]/Ecology environmentNitrogen fixationFood ScienceBiotechnologyPlasmids
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