Abstract
The ability of Bacillus spp. to alter the nodulation of Phaseolus vulgaris by Rhizobium etli was assessed. The simultaneous presence of both Rhizobium etli TAL 182 and Bacillus megaterium S49 on plant roots during the early stages of plant growth was necessary for enhanced nodulation of Phaseolus vulgaris by the Rhizobium microsymbiont. Coinoculation with both bacterial species also facilitated heterologous nodulation of Rhizobium TAL 182 on Phaseolus acutifolius. These results are consistent with earlier reports of increased root hair proliferation and lateral root formation in response to coinoculation. Split-root experiments revealed that coinoculation partially suppressed host-controlled regulation of nodulation, implicating a plant interaction with the two bacterial species. Changes to the nodulation potential of R. etli due to coinoculation with Bacillus spp. demonstrate the potential for root-associated organisms other than rhizobia to alter the dynamics of the legume–Rhizobium symbiosis.Key words: Bacillus, nodulation enhancement, heterologous nodulation.
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Claims 3
Claim · model-written summary
Early simultaneous presence of Rhizobium etli TAL 182 and Bacillus megaterium S49 was necessary for enhanced Phaseolus vulgaris nodulation.
- Taxon
- Phaseolus vulgaris
Phaseolus vulgarise0 - Treatment
- simultaneous presence of both Rhizobium etli TAL 182 and Bacillus megaterium S49e0
- Interactor
- Rhizobium etli TAL 182Rhizobium etlie0symbiont
- Second interactor
- Bacillus megaterium S49
Priestia megateriume0symbiont - Outcome
- nodulation of Phaseolus vulgarise0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The simultaneous presence of both Rhizobium etli TAL 182 and Bacillus megaterium S49 on plant roots during the early stages of plant growth was necessary for enhanced nodulation of Phaseolus vulgaris by the Rhizobium microsymbiont”
Claim · model-written summary
Coinoculation facilitated heterologous Rhizobium nodulation of Phaseolus acutifolius.
- Taxon
- Phaseolus acutifolius
Phaseolus acutifoliuse0 - Treatment
- Coinoculation with both bacterial speciese0
- Interactor
- Rhizobium TAL 182e0symbiont
- Outcome
- heterologous nodulation of Rhizobium TAL 182e0
- Direction
- facilitatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Coinoculation with both bacterial species also facilitated heterologous nodulation of Rhizobium TAL 182 on Phaseolus acutifolius”
Claim · model-written summary
Coinoculation partially suppressed host-controlled regulation of nodulation.
- Taxon
- Phaseolus vulgarisPhaseolus vulgarist0
- Treatment
- coinoculatione0
- Interactor
- Rhizobium etliRhizobium etlit0symbiont
- Second interactor
- Bacillust0symbiont
- Outcome
- host-controlled regulation of nodulatione0
- Direction
- suppressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“coinoculation partially suppressed host-controlled regulation of nodulation”
t0“Nodulation ofPhaseolus vulgarisbyRhizobium etliis enhanced by the presence ofBacillus”
The same questions in other papers
Rhizobium etli · symbiosis · Phaseolus vulgaris (common bean)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
Priestia megaterium · symbiosis · Phaseolus vulgaris (common bean)Results agree
1 paper in the same direction as this paper
- 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.