By interacting organism › Bacteria › Comamonadaceae › Variovorax

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Lettuce inoculated with Variovorax spp. strains had 59.9% higher dry weight than non-inoculated plants under drought.

Taxon: Lactuca sativaLactuca sativae0
Treatment: inoculated with Bacillus spp. and Variovorax spp. strainse1
Interactor: Variovorax spp.Variovoraxe1symbiont
Outcome: dry weighte1
Direction: increasee1
Value: 59.9%e1
Qualifier: under drought conditionse1
Comparator: non-inoculated plantse1

Verbatim

e0
“selected indigenous bacterial strains isolated from the rhizosphere of Lactuca sativa”
✓ located verbatim in the source · abstract, characters 398–483

e1
“Lettuce plants inoculated with Bacillus spp. and Variovorax spp. strains exhibited a significant increase in dry weight, by 63.9% and 59.9%, respectively, under drought conditions compared to non-inoculated plants”
✓ located verbatim in the source · abstract, characters 1427–1640

Title

Harnessing Indigenous Rhizosphere Bacteria to Improve Plant Growth and Soil Microbial Activity in the Cultivation of Lactuca sativa L. Under Drought Stress Conditions

Małgorzata Woźniak; Sylwia Siebielec; Artur Nowak; et al. Journal of soil science and plant nutrition 2026. doi:10.1007/s42729-026-03299-1

Other claims from this paper (9)

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Four named bacterial taxa were enriched in N-fertilized soils.

Taxon: maizeZea mayst0
Treatment: N-fertilized soilse0
Interactor: VariovoraxVariovoraxe0symbiont
Second interactor: MicroscillaceaeMicroscillaceaee0symbiont
Outcome: Variovorax, Microscillaceae, Lysobacter, and Dyadobactere0
Direction: enrichede0
Qualifier: Lysobacter, and Dyadobactere0

Not reportedComparator

Verbatim

e0
“Key taxa, including Variovorax, Microscillaceae, Lysobacter, and Dyadobacter, were enriched in N-fertilized soils”
✓ located verbatim in the source · abstract, characters 1236–1349

t0
“maize”
✓ located verbatim in the source · title, characters 36–41

Title

Balanced NPK fertilization enhances maize yield and shapes rhizosphere bacterial communities in purple soil: evidence from a ten-year field experiment

Song Guo; Mengying Liu; Zhigang Liu; et al. BMC Microbiology 2026. doi:10.1186/s12866-026-05142-0

Other claims from this paper (9)

Intervention effect Nitrogen fertilizer treatments increased maize grain yield relative to CK and PK.
Intervention effect Nitrogen fertilizer treatments increased shoot and root biomass relative to CK and PK.
Intervention effect Nitrogen fertilizer treatments increased root morphological traits relative to CK and PK.
Intervention effect Balanced NPK had the highest performance among fertilizer regimes.
Intervention effect Fertilization significantly influenced soil nutrient availability.
Intervention effect NPK maintained more stable nutrient levels over time.
Intervention effect Rhizosphere communities responded more to fertilization than bulk soil communities.
Association N availability drove bacterial diversity shifts and community separation.
Association The named taxa correlated positively with grain yield and N uptake.

Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

The named taxa correlated positively with grain yield and N uptake.

Taxon: maizeZea mayst0
Interactor: VariovoraxVariovoraxe0symbiont
Second interactor: MicroscillaceaeMicroscillaceaee0symbiont
Outcome: grain yield and N uptakee0
Direction: positivelye0
Qualifier: Lysobacter, and Dyadobactere0

Verbatim

e0
“Key taxa, including Variovorax, Microscillaceae, Lysobacter, and Dyadobacter, were enriched in N-fertilized soils and positively correlated with grain yield and N uptake.”
✓ located verbatim in the source · abstract, characters 1236–1406

t0
“maize”
✓ located verbatim in the source · title, characters 36–41

Title

Balanced NPK fertilization enhances maize yield and shapes rhizosphere bacterial communities in purple soil: evidence from a ten-year field experiment

Song Guo; Mengying Liu; Zhigang Liu; et al. BMC Microbiology 2026. doi:10.1186/s12866-026-05142-0

Other claims from this paper (9)

Intervention effect Nitrogen fertilizer treatments increased maize grain yield relative to CK and PK.
Intervention effect Nitrogen fertilizer treatments increased shoot and root biomass relative to CK and PK.
Intervention effect Nitrogen fertilizer treatments increased root morphological traits relative to CK and PK.
Intervention effect Balanced NPK had the highest performance among fertilizer regimes.
Intervention effect Fertilization significantly influenced soil nutrient availability.
Intervention effect NPK maintained more stable nutrient levels over time.
Intervention effect Rhizosphere communities responded more to fertilization than bulk soil communities.
Association N availability drove bacterial diversity shifts and community separation.
Intervention effect Four named bacterial taxa were enriched in N-fertilized soils.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Over 8 years, Pseudomonas, Variovorax and Chryseobacterium (copiotrophic Proteobacteria and Bacteroidetes) maintained stable populations.

Taxon: WheatTriticum aestivumt0
Interactor: Pseudomonas, Variovorax, ChryseobacteriumPseudomonasVariovoraxChryseobacteriume0other
Outcome: stable populationse0
Qualifier: Over 8 yearse0

Verbatim

t0
“Wheat-Associated Bacterial Communities Under Dryland and Irrigated Conditions”
✓ located verbatim in the source · title, characters 46–123

e0
“Over 8 years, copiotrophic Proteobacteria and Bacteroidetes ( Pseudomonas, Variovorax, Chryseobacterium) maintained stable populations”
✓ located verbatim in the source · abstract, characters 991–1125

Title

Eight Years in the Soil: Temporal Dynamics of Wheat-Associated Bacterial Communities Under Dryland and Irrigated Conditions

Mingming Yang; Daniel C. Schlatter; Melissa K. LeTourneau; et al. Phytobiomes Journal 2025. doi:10.1094/pbiomes-02-24-0028-r

Other claims from this paper (9)

Associationobservedoriginal resultmeasured

Claim · model-written summary

Phenylpropane pathway metabolites correlated most highly with the bacteria Variovorax and Pseudomonas and the fungus Filobasidium.

Taxon: teat0
Interactor: Variovorax and PseudomonasPseudomonasVariovoraxe7other
Second interactor: FilobasidiumFilobasidiume7other
Outcome: highest correlation with phenylpropane pathway metabolitese7
Direction: higheste7

Verbatim

t0
“improvement of greenhouse tea quality”
✓ located verbatim in the source · title, characters 34–71

e7
“Metabolite- microbial correlation analysis indicated that the highest correlation with phenylpropane pathway metabolites was in bacteria Variovorax and Pseudomonas , and in fungi Filobasidium”
✓ located verbatim in the source · abstract, characters 829–1020

Title

Revealing novel insights into the improvement of greenhouse tea quality through exogenous substance interventions using targeted and untargeted metabolomics and microbial community analyses

Haozhen Li; Shuyao Wang; Xiaohua Zhang; et al. Food Chemistry X 2025. doi:10.1016/j.fochx.2025.102410

Other claims from this paper (7)

Intervention effect Seaweed fertiliser (CF) tea was milder, less astringent and of better quality than gibberellin (CH) tea.
Intervention effect Catechin, epicatechin and epigallocatechin were notably lower in CF tea.
Observation Differentially accumulated metabolites were notably enriched in flavonoid and phenylpropanoid biosynthesis in tea.
Intervention effect Seaweed fertiliser (CF) improved tea quality by down-regulating phenylpropanoid metabolites.
Observation The foliar microbial community under CF was enriched in amino acid and secondary metabolite biosynthesis.
Association Signature microorganisms were strongly correlated with flavour substances in tea.
Recommendation The authors propose a measure to improve greenhouse tea quality.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SiO2-COOH nanoparticles increased the abundance of the beneficial endosphere bacteria Variovorax and Pseudomonas in soybean.

Taxon: SoybeanGlycine maxt0
Treatment: SiO 2 -COOH NPse4
Interactor: VariovoraxVariovoraxe4other
Second interactor: PseudomonasPseudomonase4other
Outcome: abundance of beneficial generae4
Direction: increasinge4
Setting: endospheree4

Not reportedComparator

Verbatim

t0
“Mitigate Salt Stress in Soybean”
✓ located verbatim in the source · title, characters 36–67

e4
“SiO 2 -COOH NPs enhanced microbial diversity, increasing the abundance of beneficial genera Variovorax and Pseudomonas in the endosphere, and Haliangium and Arthrobacter in the rhizosphere”
✓ located verbatim in the source · abstract, characters 696–884

Title

Functionalized Silica Nanoparticles Mitigate Salt Stress in Soybean: Comprehensive Insights of Physiological, Metabolomic, and Microbiome Responses

Zhidi Chen; Pan Wang; Simin Zhao; et al. Journal of Agricultural and Food Chemistry 2025. doi:10.1021/acs.jafc.5c00194

Other claims from this paper (6)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Variovorax, Pseudarthrobacter and Lechevalieria were among the lesser known key genera identified in tomato roots.

Taxon: tomatoSolanum lycopersicume2
Interactor: Variovorax, Pseudarthrobacter, and LechevalieriaVariovorax LentzeaPseudarthrobactere5symbiont
Outcome: key generae5

Verbatim

e2
“tomato root endophytic prokaryotic microbiota”
✓ located verbatim in the source · abstract, characters 652–697

e5
“Streptomyces, Shinella, Devosia, and Pseudoxanthomonas, as well as the lesser known genera Variovorax, Pseudarthrobacter, and Lechevalieria, represented the key genera identified”
✓ located verbatim in the source · abstract, characters 1244–1422

Title

From microbiome to biostimulants: unlocking the potential of tomato root endophytes

Francesco Maria Fagnano; Valeria Ventorino; Edoardo Pasolli; et al. BMC Plant Biology 2025. doi:10.1186/s12870-025-06447-4

Other claims from this paper (6)

Associationobservedoriginal resultmeasured

Claim · model-written summary

Variovorax and Bacillus are genotype-dependent bacteria predominantly recruited in the rhizosphere of Pyrus betulifolia Qingzhen V111 via root exudates.

Taxon: Pyrus betulifoliaPyrus betulifoliat0
Material: Qingzhen V111e2
Organ / stage: rhizospheree2
Interactor: VariovoraxVariovoraxe2symbiont
Second interactor: Bacilluse2symbiont
Outcome: Variovorax and Bacilluse2
Direction: predominantly recruitede2

Verbatim

t0
“Pyrus betulifolia”
✓ located verbatim in the source · title, characters 107–124

e2
“Variovorax and Bacillus are genotype dependent bacteria predominantly recruited in the rhizosphere of ‘Qingzhen V111’ via root exudates”
✓ located after whitespace/quote normalisation · abstract, characters 1504–1639

Title

Integrated rhizosphere bacterial community and root exudate analysis clarify the key bacteria in enhancing Pyrus betulifolia saline-alkali stress tolerance

Yingjie Yang; Yuling Mei; Weizhen Ma; et al. Horticultural Plant Journal 2025. doi:10.1016/j.hpj.2025.03.002

Other claims from this paper (9)

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Lip@MSNs recruited beneficial endophytic bacteria, including antagonistic Sphingomonas, Variovorax and Streptomyces.

Taxon: SoybeanGlycine maxe1
Treatment: Lip@MSNse5
Interactor: Sphingomonas, Variovorax, and StreptomycesStreptomycesSphingomonasVariovoraxe5biocontrol_agent
Outcome: beneficial endophytic bacteriae5

Not reportedComparatorDirection

Verbatim

e1
“Soybean production is severely affected by the soil-borne phytopathogenic, Fusarium oxysporum, which causes root rot disease”
✓ located verbatim in the source · abstract, characters 12–136

e5
“Furthermore, Lip@MSNs recruited beneficial endophytic bacteria, such as antagonistic genera (Sphingomonas, Variovorax, and Streptomyces) and growth-promoting genera (Rhizobium, Ensifer, and Nocardioides)”
✓ located verbatim in the source · abstract, characters 948–1151