Abstract
Abstract Background Soil microbial communities affect above-ground plant diversity and community composition by influencing plant growth performance. Several studies have tested the effect of soil bacterial microbiome on growth performance of native and invasive plants, but the influence of specific bacterial isolates has not been investigated. Here, we investigated the effects of soil bacterial exclusion by soil sterilization and by inoculation of Streptomyces rhizobacterial isolates on the growth performance of native and invasive Prosopis congeners. Results Plant growth performance of invasive P. juliflora was significantly reduced when grown in sterilized soils, whereas native P. cineraria showed enhanced growth performance in the sterilized soils. When grown in the soil inoculated with the specific Streptomyces isolate from P. juliflora (PJ1), the growth performance of invasive P. juliflora was significantly enhanced while that of native P. cineraria seedlings was significantly reduced. However, inoculation of P. cineraria and P. juliflora seedlings with Streptomyces isolate from the rhizosphere of native P. cineraria (PC1) had no significant effect on the growth performances either of P. juliflora or P. cineraria . Conclusion Our study reveals that invasive P. juliflora experiences positive feedback from the non-native soil bacterial community, while the native P. cineraria experiences negative feedback from its soil bacterial community. Our results provide fresh experimental evidence for the enemy release hypothesis, and further our understanding of the contrasting growth-promoting effects of differentially recruited microbial species belonging to the same genus ( Streptomyces ) in the rhizospheres of alien invasive and native plants.
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Claims 8
Claim · model-written summary
Sterilized soil significantly reduced invasive P. juliflora growth.
- Taxon
- P. juliflora
Neltuma juliflorae0 - Treatment
- sterilized soilse0
- Outcome
- Plant growth performancee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant growth performance of invasive P. juliflora was significantly reduced when grown in sterilized soils”
Claim · model-written summary
Sterilized soil enhanced native P. cineraria growth.
- Taxon
- P. cineraria
Prosopis cinerariae0 - Treatment
- sterilized soilse0
- Outcome
- growth performancee0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“native P. cineraria showed enhanced growth performance in the sterilized soils”
Claim · model-written summary
PJ1 Streptomyces inoculation significantly enhanced invasive P. juliflora growth.
- Taxon
- P. julifloraNeltuma juliflorae0
- Treatment
- soil inoculated with the specific Streptomyces isolate from P. juliflora (PJ1)e0
- Interactor
- Streptomyces isolatee0symbiont
- Outcome
- growth performancee0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soil inoculated with the specific Streptomyces isolate from P. juliflora (PJ1), the growth performance of invasive P. juliflora was significantly enhanced”
Claim · model-written summary
PJ1 Streptomyces inoculation significantly reduced native P. cineraria seedling growth.
- Taxon
- P. cinerariaProsopis cinerariae0
- Treatment
- soil inoculated with the specific Streptomyces isolate from P. juliflora (PJ1)e0
- Interactor
- Streptomyces isolatee0symbiont
- Outcome
- growth performancee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soil inoculated with the specific Streptomyces isolate from P. juliflora (PJ1), the growth performance of invasive P. juliflora was significantly enhanced while that of native P. cineraria seedlings was significantly reduced”
Claim · model-written summary
PC1 Streptomyces inoculation had no significant effect on P. juliflora growth.
- Taxon
- P. julifloraNeltuma juliflorae0
- Treatment
- inoculation of P. cineraria and P. juliflora seedlings with Streptomyces isolate from the rhizosphere of native P. cineraria (PC1)e0
- Interactor
- Streptomyces isolatee0symbiont
- Outcome
- growth performancese0
- Direction
- no significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inoculation of P. cineraria and P. juliflora seedlings with Streptomyces isolate from the rhizosphere of native P. cineraria (PC1) had no significant effect on the growth performances either of P. juliflora or P. cineraria”
Claim · model-written summary
PC1 Streptomyces inoculation had no significant effect on P. cineraria growth.
- Taxon
- P. cinerariaProsopis cinerariae0
- Treatment
- inoculation of P. cineraria and P. juliflora seedlings with Streptomyces isolate from the rhizosphere of native P. cineraria (PC1)e0
- Interactor
- Streptomyces isolatee0symbiont
- Outcome
- growth performancese0
- Direction
- no significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inoculation of P. cineraria and P. juliflora seedlings with Streptomyces isolate from the rhizosphere of native P. cineraria (PC1) had no significant effect on the growth performances either of P. juliflora or P. cineraria”
Claim · model-written summary
The authors interpreted invasive P. juliflora as receiving positive feedback from the non-native soil bacterial community.
- Taxon
- P. julifloraNeltuma juliflorae0
- Interactor
- non-native soil bacterial communitye0symbiont
- Outcome
- positive feedbacke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“invasive P. juliflora experiences positive feedback from the non-native soil bacterial community”
Claim · model-written summary
The authors interpreted native P. cineraria as receiving negative feedback from its soil bacterial community.
- Taxon
- P. cinerariaProsopis cinerariae0
- Interactor
- soil bacterial communitye0symbiont
- Outcome
- negative feedbacke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“native P. cineraria experiences negative feedback from its soil bacterial community”
The same questions in other papers
inoculation · growth · Neltuma julifloraPositive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
inoculation · growth · Prosopis cinerariaPositive and negative results
4 in the opposite direction
- positive
- positive
- positive
1 paper more in this group
See all 5 papers →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.