Abstract
BACKGROUND: Ralstonia solanacearum (Rs) is a soilborne phytopathogen that causes bacterial wilt and substantial yield losses in many plants, such as tomatoes. A resistant tomato cultivar can recruit a beneficial microbiome from soil to resist Rs. However, whether this recruitment is inheritable from resistant parent to progeny has not been determined. RESULTS: In the present study, we investigated the rhizosphere microbiomes of tomatoes with clear kinship and different resistance against Rs. Resistant tomatoes grown with the additions of natural soil or its extract showed lower disease indexes than those grown in the sterile soil, demonstrating the importance of soil microbiome in resisting Rs. The results of 16S ribosomal RNA gene amplicon sequencing revealed that the resistant cultivars had more robust rhizosphere microbiomes than the susceptible ones. Besides, the resistant progeny HF12 resembled its resistant parent HG64 in the rhizosphere microbiome. The rhizosphere microbiome had functional consistency between HF12 and HG64 as revealed by metagenomics. Based on multi-omics analysis and experimental validation, two rhizobacteria (Sphingomonas sp. Cra20 and Pseudomonas putida KT2440) were enriched in HF12 and HG64 with the ability to offer susceptible tomatoes considerable protection against Rs. Multiple aspects were involved in the protection, including reducing the virulence-related genes of Rs and reshaping the transcriptomes of the susceptible tomatoes. CONCLUSIONS: We found promising bacteria to suppress the tomato bacterial wilt in sustainable agriculture. And our research provides insights into the heritability of Rs-resistant tomato rhizobacteria, echoing the inheritance of tomato genetic material. Video Abstract.
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Claims 8
Claim · model-written summary
Resistant tomatoes with natural soil or its extract had lower disease indexes than those in sterile soil.
- Taxon
- tomatoes
Solanum lycopersicume0 - Treatment
- additions of natural soil or its extracte0
- Interactor
- Ralstonia solanacearum
Ralstonia solanacearume1pathogen - Outcome
- disease indexese0
- Direction
- lowere0
- Comparator
- the sterile soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Resistant tomatoes grown with the additions of natural soil or its extract showed lower disease indexes than those grown in the sterile soil”
e1“Ralstonia solanacearum (Rs) is a soilborne phytopathogen”
Claim · model-written summary
Resistant cultivars had more robust rhizosphere microbiomes than susceptible cultivars.
- Taxon
- tomatoesSolanum lycopersicume1
- Outcome
- rhizosphere microbiomese0
- Direction
- more robuste0
- Comparator
- the susceptible onese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the resistant cultivars had more robust rhizosphere microbiomes than the susceptible ones”
e1“tomatoes with clear kinship”
Claim · model-written summary
Resistant progeny HF12 resembled resistant parent HG64 in rhizosphere microbiome composition.
- Taxon
- tomatoesSolanum lycopersicume1
- Material
- HF12e0
- Outcome
- rhizosphere microbiomee0
- Comparator
- HG64e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the resistant progeny HF12 resembled its resistant parent HG64 in the rhizosphere microbiome”
e1“tomatoes with clear kinship”
Claim · model-written summary
Rhizosphere microbiome functions were consistent between HF12 and HG64 in metagenomic analysis.
- Taxon
- tomatoesSolanum lycopersicume1
- Material
- HF12e0
- Outcome
- rhizosphere microbiomee0
- Comparator
- HG64e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The rhizosphere microbiome had functional consistency between HF12 and HG64 as revealed by metagenomics.”
e1“tomatoes with clear kinship”
Claim · model-written summary
Sphingomonas sp. Cra20 was enriched in resistant HF12 and HG64 and could protect susceptible tomatoes against Rs.
- Taxon
- tomatoesSolanum lycopersicume0
- Material
- HF12e0
- Interactor
- Ralstonia solanacearumRalstonia solanacearume1pathogen
- Second interactor
- Sphingomonas sp. Cra20e0biocontrol_agent
- Outcome
- considerable protection against Rse0
- Direction
- enrichede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two rhizobacteria (Sphingomonas sp. Cra20 and Pseudomonas putida KT2440) were enriched in HF12 and HG64 with the ability to offer susceptible tomatoes considerable protection against Rs”
e1“Ralstonia solanacearum (Rs) is a soilborne phytopathogen”
Claim · model-written summary
Pseudomonas putida KT2440 was enriched in resistant HF12 and HG64 and could protect susceptible tomatoes against Rs.
- Taxon
- tomatoesSolanum lycopersicume0
- Material
- HG64e0
- Interactor
- Ralstonia solanacearumRalstonia solanacearume1pathogen
- Second interactor
- Pseudomonas putida KT2440
Pseudomonas putida KT2440e0biocontrol_agent - Outcome
- considerable protection against Rse0
- Direction
- enrichede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two rhizobacteria (Sphingomonas sp. Cra20 and Pseudomonas putida KT2440) were enriched in HF12 and HG64 with the ability to offer susceptible tomatoes considerable protection against Rs”
e1“Ralstonia solanacearum (Rs) is a soilborne phytopathogen”
Claim · model-written summary
Protection involved reduction of Rs virulence-related genes.
- Taxon
- tomatoesSolanum lycopersicume1
- Interactor
- Ralstonia solanacearumRalstonia solanacearume2pathogen
- Outcome
- reducing the virulence-related genes of Rse0
- Qualifier
- protectione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Multiple aspects were involved in the protection, including reducing the virulence-related genes of Rs”
e1“tomatoes with clear kinship”
e2“Ralstonia solanacearum (Rs) is a soilborne phytopathogen”
Claim · model-written summary
Protection involved reshaping susceptible tomato transcriptomes.
- Taxon
- tomatoesSolanum lycopersicume0
- Interactor
- Ralstonia solanacearumRalstonia solanacearume2pathogen
- Outcome
- reshaping the transcriptomese0
- Qualifier
- protectione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reshaping the transcriptomes of the susceptible tomatoes”
e1“Multiple aspects were involved in the protection, including reducing the virulence-related genes of Rs and reshaping the transcriptomes of the susceptible tomatoes.”
e2“Ralstonia solanacearum (Rs) is a soilborne phytopathogen”
The same questions in other papers
botanical · Ralstonia solanacearum · Solanum lycopersicum (tomato)Positive and negative results
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- no effect
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