ArticleApplied and environmental microbiology2010
Ralstonia solanacearum Dps contributes to oxidative stress tolerance and to colonization of and virulence on tomato plants.
Article in Applied and environmental microbiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
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Who cites it
26 citing papers in PubMed, 53 citations in OpenAlex.
- Impacts of climate extremes on plant pathogens, microbiomes and plant health.Nature reviews. Microbiology · 2026Review
- Gene expression changes throughout the life cycle allow a bacterial plant pathogen to persist in diverse environmental habitats.PLoS pathogens · 2023Article
- Influence of insertion sequences on population structure of phytopathogenic bacteria in theMicrobiology (Reading, England) · 2023Article
- Plant-PathogenicmBio · 2023Article
- Global diversity and distribution of prophages are lineage-specific within the Ralstonia solanacearum species complex.BMC genomics · 2022Article
- Interrelation between Stress Management and Secretion Systems ofPathogens (Basel, Switzerland) · 2022Article
- NorA, HmpX, and NorB Cooperate to Reduce NO Toxicity during Denitrification and Plant Pathogenesis inMicrobiology spectrum · 2022Article
- Microbial adaptation to different environmental conditions: molecular perspective of evolved genetic and cellular systems.Archives of microbiology · 2022Review
- Comprehensive Analysis Reveals the Genetic and Pathogenic Diversity ofFrontiers in microbiology · 2022Article
- Elucidation of antibacterial effect of calcium chloride against Ralstonia pseudosolanacearum race 4 biovar 3 infecting ginger (Zingiber officinale Rosc.).Archives of microbiology · 2021Article
- Application of Genome Editing in Tomato Breeding: Mechanisms, Advances, and Prospects.International journal of molecular sciences · 2021Review
- Gallic Acid an Agricultural Byproduct Modulates the Biofilm Matrix Exopolysaccharides of the Phytopathogen Ralstonia solanacearum.Current microbiology · 2020Article
- Potential evolutionary impact of integrative and conjugative elements (ICEs) and genomic islands in the Ralstonia solanacearum species complex.Scientific reports · 2020Article
- Plant Assays for QuantifyingBio-protocol · 2018Article
- OxyR-activated expression of Dps is important for Vibrio cholerae oxidative stress resistance and pathogenesis.PloS one · 2017Article
- A Practical Guide to Visualization and Statistical Analysis ofFrontiers in plant science · 2017Article
- Genetic Determinants for Pyomelanin Production and Its Protective Effect against Oxidative Stress in Ralstonia solanacearum.PloS one · 2016Article
- Tropical strains of Ralstonia solanacearum Outcompete race 3 biovar 2 strains at lowland tropical temperatures.Applied and environmental microbiology · 2015Article
- Complete genome sequence of Pseudomonas fluorescens strain PICF7, an indigenous root endophyte from olive (Olea europaea L.) and effective biocontrol agent against Verticillium dahliae.Standards in genomic sciences · 2015Article
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Ralstonia solanacearum, an economically important soilborne plant pathogen, infects host roots to cause bacterial wilt disease. However, little is known about this pathogen's behavior in the rhizosphere and early in pathogenesis. In response to root exudates from tomato, R. solanacearum strain UW551 upregulated a gene resembling Dps, a nonspecific DNA binding protein from starved cells that is critical for stress survival in other bacteria. An R. solanacearum dps mutant had increased hydrogen peroxide sensitivity and mutation rate under starvation. Furthermore, dps expression was positively regulated by the oxidative stress response regulator OxyR. These functional results are consistent with a Dps annotation. The dps mutant caused slightly delayed bacterial wilt disease in tomato after a naturalistic soil soak inoculation. However, the dps mutant had a more pronounced reduction in virulence when bacteria were inoculated directly into host stems, suggesting that Dps helps R. solanacearum adapt to conditions inside plants. Passage through a tomato plant conferred transient increased hydrogen peroxide tolerance on both wild-type and dps mutant strains, demonstrating that R. solanacearum acquires Dps-independent oxidative stress tolerance during adaptation to the host environment. The dps mutant strain was also reduced in adhesion to tomato roots and tomato stem colonization. These results indicate that Dps is important when cells are starved or in stationary phase and that Dps contributes quantitatively to host plant colonization and bacterial wilt virulence. They further suggest that R. solanacearum must overcome oxidative stress during the bacterial wilt disease cycle.
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