Abstract
Bacteria resembling Rhizobium leguminosarum, but lacking symbiotic information, were isolated from soil of two different geographical origins. One of these bacteria belongs to a previously described Rhizobium leguminosarum bv. phaseoli somatic serogroup, is fully complemented for nodulation and nitrogen fixation by an R. leguminosarum bv. phaseoli symbiotic plasmid, and is able to compete for bean nodulation with indigenous R. leguminosarum bv. phaseoli strains. This is the first report giving evidence for persistence in soil of Rhizobium lacking symbiotic information.Key words: Rhizobium ecology, symbiotic plasmid, nodulation, plasmid transfer.
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Claims 4
Claim · model-written summary
Bacteria resembling Rhizobium leguminosarum but lacking symbiotic information were isolated from soils of two origins.
- Taxon
- beane1
- Interactor
- Rhizobium leguminosarum
Rhizobium leguminosarume0symbiont - Outcome
- Rhizobium leguminosarum, but lacking symbiotic information, were isolated from soile0
- Qualifier
- two different geographical originse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bacteria resembling Rhizobium leguminosarum, but lacking symbiotic information, were isolated from soil of two different geographical origins”
e1“bean nodulation”
Claim · model-written summary
A symbiotic plasmid fully complemented one isolate for bean nodulation and nitrogen fixation.
- Taxon
- beane0
- Treatment
- R. leguminosarum bv. phaseoli symbiotic plasmide0
- Interactor
- R. leguminosarum bv. phaseoliRhizobium leguminosarume0symbiont
- Outcome
- nodulation and nitrogen fixatione0
- Direction
- fully complementede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“is fully complemented for nodulation and nitrogen fixation by an R. leguminosarum bv. phaseoli symbiotic plasmid, and is able to compete for bean nodulation with indigenous R. leguminosarum bv. phaseoli strains”
Claim · model-written summary
The complemented isolate competed for bean nodulation with indigenous strains.
- Taxon
- beane0
- Interactor
- R. leguminosarum bv. phaseoli strainsRhizobium leguminosarume0symbiont
- Outcome
- compete for bean nodulatione0
- Comparator
- indigenous R. leguminosarum bv. phaseoli strainse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“is able to compete for bean nodulation with indigenous R. leguminosarum bv. phaseoli strains”
Claim · model-written summary
The authors report evidence that Rhizobium lacking symbiotic information persists in soil.
RhizobiumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This is the first report giving evidence for persistence in soil of Rhizobium lacking symbiotic information”
e1“bean nodulation”
The same questions in other papers
Rhizobium leguminosarum · symbiosis · Phaseolus vulgaris (common bean)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.