Xanthomonas campestris pv. campestris 703 claims

no rank · family Lysobacteraceae · bacterium · NCBI Taxonomy ↗

Also written in claims: X . campestris pv. campestris · X.campestris pv. campestris · X. campestris pv. campestris NRRL B1459 · X. campestris pv. campestris strain 8004 · X. campestris pv. campestris 8004

18 spellings

Xanthomonas campestris pv. campestrisDavid B. Langston · CC BY 3.0 · Wikimedia Commons ↗

703 claims

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Associationobservedoriginal resultmeasured

Claim · model-written summary

Black rot severity and bacterial growth kinetics depended on pathogen race and environmental conditions.

Taxon: broccoliBrassica oleracea var. italicae0
Interactor: Xanthomonas campestris pv. campestrisXanthomonas campestris pv. campestrise2pathogen
Outcome: Black rot severity and bacterial growth kineticse1

Not reportedDirection

Verbatim

e0
“broccoli plants were cultivated under three environmental regimes”
✓ located verbatim in the source · abstract, characters 453–518

e1
“Black rot severity and bacterial growth kinetics depended on both pathogen race and environmental conditions”
✓ located verbatim in the source · abstract, characters 944–1052

e2
“Xanthomonas campestris pv. campestris (Xcc)”
✓ located verbatim in the source · abstract, characters 335–378

Title

Broccoli plants exposed to the combined threat of climate change and bacterial infection

María Luisa Pérez-Bueno; Matilde Barón; Mónica Pineda BMC Plant Biology 2026. doi:10.1186/s12870-026-08704-6

Other claims from this paper (8)

Intervention effect The moderate RCP 4.5 scenario did not negatively affect broccoli fitness.
Intervention effect The severe RCP 8.5 scenario markedly reduced broccoli vegetative growth and photosystem II efficiency.
Association Xcc race 4 was the most aggressive race under current climate and RCP 4.5.
Association Xcc race 1 gained virulence on broccoli under RCP 8.5 at later infection stages.
Intervention effect Xcc infection increased broccoli leaf temperature and lipid peroxidation, regardless of race.
Intervention effect Xcc infection stimulated accumulation of phenolics and other antioxidant metabolites in broccoli.
Mechanism The metabolic changes in broccoli mitigated oxidative damage.
Association The metabolic changes did not prevent the decline in broccoli photosynthetic performance under climate conditions.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Xcc race 4 was the most aggressive race under current climate and RCP 4.5.

Taxon: broccoliBrassica oleracea var. italicae0
Material: race 4e2
Interactor: Xanthomonas campestris pv. campestrisXanthomonas campestris pv. campestrise1pathogen
Outcome: aggressivee2
Direction: most aggressivee2
Setting: CCC and RCP 4.5e2

Verbatim

e0
“broccoli plants were cultivated under three environmental regimes”
✓ located verbatim in the source · abstract, characters 453–518

e1
“Xanthomonas campestris pv. campestris (Xcc)”
✓ located verbatim in the source · abstract, characters 335–378

e2
“race 4 was most aggressive under CCC and RCP 4.5”
✓ located verbatim in the source · abstract, characters 1054–1102

Title

Broccoli plants exposed to the combined threat of climate change and bacterial infection

María Luisa Pérez-Bueno; Matilde Barón; Mónica Pineda BMC Plant Biology 2026. doi:10.1186/s12870-026-08704-6

Other claims from this paper (8)

Intervention effect The moderate RCP 4.5 scenario did not negatively affect broccoli fitness.
Intervention effect The severe RCP 8.5 scenario markedly reduced broccoli vegetative growth and photosystem II efficiency.
Association Black rot severity and bacterial growth kinetics depended on pathogen race and environmental conditions.
Association Xcc race 1 gained virulence on broccoli under RCP 8.5 at later infection stages.
Intervention effect Xcc infection increased broccoli leaf temperature and lipid peroxidation, regardless of race.
Intervention effect Xcc infection stimulated accumulation of phenolics and other antioxidant metabolites in broccoli.
Mechanism The metabolic changes in broccoli mitigated oxidative damage.
Association The metabolic changes did not prevent the decline in broccoli photosynthetic performance under climate conditions.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Xcc race 1 gained virulence on broccoli under RCP 8.5 at later infection stages.

Taxon: broccoliBrassica oleracea var. italicae0
Material: race 1e2
Organ / stage: later infection stagese2
Treatment: RCP 8.5e2
Interactor: Xanthomonas campestris pv. campestrisXanthomonas campestris pv. campestrise1pathogen
Outcome: virulencee2
Direction: gainede2

Verbatim

e0
“broccoli plants were cultivated under three environmental regimes”
✓ located verbatim in the source · abstract, characters 453–518

e1
“Xanthomonas campestris pv. campestris (Xcc)”
✓ located verbatim in the source · abstract, characters 335–378

e2
“while race 1 gained virulence under RCP 8.5 at later infection stages”
✓ located verbatim in the source · abstract, characters 1104–1173

Title

Broccoli plants exposed to the combined threat of climate change and bacterial infection

María Luisa Pérez-Bueno; Matilde Barón; Mónica Pineda BMC Plant Biology 2026. doi:10.1186/s12870-026-08704-6

Other claims from this paper (8)

Intervention effect The moderate RCP 4.5 scenario did not negatively affect broccoli fitness.
Intervention effect The severe RCP 8.5 scenario markedly reduced broccoli vegetative growth and photosystem II efficiency.
Association Black rot severity and bacterial growth kinetics depended on pathogen race and environmental conditions.
Association Xcc race 4 was the most aggressive race under current climate and RCP 4.5.
Intervention effect Xcc infection increased broccoli leaf temperature and lipid peroxidation, regardless of race.
Intervention effect Xcc infection stimulated accumulation of phenolics and other antioxidant metabolites in broccoli.
Mechanism The metabolic changes in broccoli mitigated oxidative damage.
Association The metabolic changes did not prevent the decline in broccoli photosynthetic performance under climate conditions.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Xcc infection increased broccoli leaf temperature and lipid peroxidation, regardless of race.

Taxon: broccoliBrassica oleracea var. italicae0
Organ / stage: leafe2
Treatment: infectione2
Interactor: Xanthomonas campestris pv. campestrisXanthomonas campestris pv. campestrise1pathogen
Outcome: leaf temperature and lipid peroxidatione2
Direction: increasede2

Not reportedComparator

Verbatim

e0
“broccoli plants were cultivated under three environmental regimes”
✓ located verbatim in the source · abstract, characters 453–518

e1
“Xanthomonas campestris pv. campestris (Xcc)”
✓ located verbatim in the source · abstract, characters 335–378

e2
“Regardless of race, infection increased leaf temperature and lipid peroxidation and stimulated the accumulation of phenolics and other antioxidant metabolites”
✓ located verbatim in the source · abstract, characters 1175–1333

Title

Broccoli plants exposed to the combined threat of climate change and bacterial infection

María Luisa Pérez-Bueno; Matilde Barón; Mónica Pineda BMC Plant Biology 2026. doi:10.1186/s12870-026-08704-6

Other claims from this paper (8)

Intervention effect The moderate RCP 4.5 scenario did not negatively affect broccoli fitness.
Intervention effect The severe RCP 8.5 scenario markedly reduced broccoli vegetative growth and photosystem II efficiency.
Association Black rot severity and bacterial growth kinetics depended on pathogen race and environmental conditions.
Association Xcc race 4 was the most aggressive race under current climate and RCP 4.5.
Association Xcc race 1 gained virulence on broccoli under RCP 8.5 at later infection stages.
Intervention effect Xcc infection stimulated accumulation of phenolics and other antioxidant metabolites in broccoli.
Mechanism The metabolic changes in broccoli mitigated oxidative damage.
Association The metabolic changes did not prevent the decline in broccoli photosynthetic performance under climate conditions.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Xcc infection stimulated accumulation of phenolics and other antioxidant metabolites in broccoli.

Taxon: broccoliBrassica oleracea var. italicae0
Treatment: infectione2
Interactor: Xanthomonas campestris pv. campestrisXanthomonas campestris pv. campestrise1pathogen
Outcome: accumulation of phenolics and other antioxidant metabolitese2
Direction: stimulatede2

Not reportedComparator

Verbatim

e0
“broccoli plants were cultivated under three environmental regimes”
✓ located verbatim in the source · abstract, characters 453–518

e1
“Xanthomonas campestris pv. campestris (Xcc)”
✓ located verbatim in the source · abstract, characters 335–378

e2
“Regardless of race, infection increased leaf temperature and lipid peroxidation and stimulated the accumulation of phenolics and other antioxidant metabolites”
✓ located verbatim in the source · abstract, characters 1175–1333

Title

Broccoli plants exposed to the combined threat of climate change and bacterial infection

María Luisa Pérez-Bueno; Matilde Barón; Mónica Pineda BMC Plant Biology 2026. doi:10.1186/s12870-026-08704-6

Other claims from this paper (8)

Intervention effect The moderate RCP 4.5 scenario did not negatively affect broccoli fitness.
Intervention effect The severe RCP 8.5 scenario markedly reduced broccoli vegetative growth and photosystem II efficiency.
Association Black rot severity and bacterial growth kinetics depended on pathogen race and environmental conditions.
Association Xcc race 4 was the most aggressive race under current climate and RCP 4.5.
Association Xcc race 1 gained virulence on broccoli under RCP 8.5 at later infection stages.
Intervention effect Xcc infection increased broccoli leaf temperature and lipid peroxidation, regardless of race.
Mechanism The metabolic changes in broccoli mitigated oxidative damage.
Association The metabolic changes did not prevent the decline in broccoli photosynthetic performance under climate conditions.

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

bomlo12 mutants had a significantly lower black rot disease index than wild-type controls (31.4 to 21.8)

Taxon: Brassica oleraceaBrassica oleraceat0
Treatment: bomlo12 mutantse1
Interactor: Xanthomonas campestris pv. campestrisXanthomonas campestris pv. campestrise2pathogen
Outcome: disease index (DI) valuese1
Direction: reductionse1
Value: 31.4 to 21.8e1
Qualifier: for black rote1
Comparator: wild-type (WT) controlse1

Verbatim

t0
“in Brassica oleracea”
✓ located verbatim in the source · title, characters 80–100

e1
“bomlo12 mutants exhibited statistically significant reductions in disease index (DI) values compared to wild-type (WT) controls, from 31.4 to 21.8 (significant) for black rot, from 65.4 to 15.3 (significant) for Fusarium wilt, and from 77.8 to 43.3 (significant) for black spot”
✓ located verbatim in the source · abstract, characters 3115–3392

e2
“black rot caused by Xanthomonas campestris pv. campestris”
✓ located verbatim in the source · abstract, characters 400–457

Title

Editing of BoMLO12 confers broad-spectrum disease resistance and enhanced yield in Brassica oleracea

Yulun Zhang; Guanzhong Huo; Limei Yang; et al. Horticulture Research 2026. doi:10.1093/hr/uhag009

Other claims from this paper (19)

Intervention effect bomlo12 mutants had a significantly lower Fusarium wilt disease index than wild-type controls (65.4 to 15.3)
Intervention effect bomlo12 mutants had a significantly lower black spot disease index than wild-type controls (77.8 to 43.3)
Association BoMLO12 expression was significantly downregulated following inoculation
Association BoPR10 expression was significantly downregulated after pathogen inoculation
Association BoPAL and BoNPR1 expression was significantly upregulated
Intervention effect In the rosette stage, bomlo12 mutants showed a 10.7%–21.7% increase in plant expansion
Intervention effect In the rosette stage, bomlo12 mutants showed no significant change in head height
Intervention effect In the heading stage, bomlo12 mutants had plant expansion rising by 32.8%–48.6% relative to WT plants
Intervention effect In the heading stage, bomlo12 mutants had head height increased by 30.6%–38.2% relative to WT plants
Intervention effect In the harvesting stage, bomlo12-1 plant expansion increased by 34.7%
Intervention effect In the harvesting stage, bomlo12-2 and bomlo12-3 head height increased by 38.4%–52.3%
Intervention effect Individual head weight of bomlo12 mutants was about 2-fold that of WT plants
Intervention effect BoMLO12 knockout increased maximum root length
Intervention effect BoMLO12 knockout increased leaf thickness, leaf length and plant expansion index
Method / resource CRISPR/Cas9 transformation of Brassica oleracea by Agrobacterium gave a transformation efficiency of 4.6%
Method / resource Agrobacterium-mediated transformation gave an editing efficiency of 42.0% (3/7)
Observation Sanger sequencing of T1 bomlo12 mutants revealed six distinct mutation types
Observation BoMLO12 is a promising candidate for enhancing disease resistance in Brassica oleracea
Observation BoMLO12 showed high sequence similarity to the wheat MLO mutant Tamlo-R32

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Inoculation at the end of the photoperiod consistently reduced disease severity in Brassica oleracea compared with morning infection.

Taxon: Brassica oleraceaBrassica oleraceae1
Treatment: inoculation at the end of the photoperiod (PM)e1
Interactor: Xanthomonas campestris pv. campestrisXanthomonas campestris pv. campestrise1pathogen
Outcome: disease severitye1
Direction: reducede1
Comparator: morning (AM) infectionse1

Verbatim

e1
“Brassica oleracea exhibits strong diurnal variation in resistance to Xanthomonas campestris pv. campestris ( Xcc ): inoculation at the end of the photoperiod (PM) consistently reduced disease severity compared with morning (AM) infections”
✓ located verbatim in the source · abstract, characters 436–674

Title

Diurnal timing influences metabolic reprogramming and resistance of Brassica oleracea to Xanthomonas campestris infection

Carmen Vega-Álvarez; Pilar Soengas; Lorena Álvarez-Iglesias; et al. Plant Stress 2026. doi:10.1016/j.stress.2026.101392

Other claims from this paper (7)

Intervention effect PM-infected plants showed increased TCA-cycle intermediates, branched-chain amino acids and jasmonate-related lipids.
Intervention effect PM-infected plants showed increased fatty acid primary amides.
Intervention effect Oleamide accumulated specifically in PM-infected Brassica oleracea plants.
Intervention effect Exogenous oleamide application attenuated disease symptoms caused by Xanthomonas campestris pv. campestris in Brassica oleracea.
Intervention effect Exogenous oleamide application induced stable lipid and phenylpropanoid remodeling in Brassica oleracea.
Intervention effect Oleamide treatment increased endogenous oleamide in Brassica oleracea.
Observation Oleamide directly inhibited growth of Xanthomonas campestris pv. campestris in vitro.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Exogenous oleamide application attenuated disease symptoms caused by Xanthomonas campestris pv. campestris in Brassica oleracea.

Taxon: Brassica oleraceaBrassica oleraceae1
Treatment: Exogenous oleamide applicatione4
Interactor: Xanthomonas campestris pv. campestrisXanthomonas campestris pv. campestrise1pathogen
Outcome: disease symptomse4
Direction: attenuatinge4
Qualifier: partially reproduced the PM-resistant metabolic statee4

Not reportedComparator

Verbatim

e1
“Brassica oleracea exhibits strong diurnal variation in resistance to Xanthomonas campestris pv. campestris ( Xcc ): inoculation at the end of the photoperiod (PM) consistently reduced disease severity compared with morning (AM) infections”
✓ located verbatim in the source · abstract, characters 436–674

e4
“Exogenous oleamide application partially reproduced the PM-resistant metabolic state, attenuating disease symptoms and inducing stable lipid and phenylpropanoid remodeling”
✓ located verbatim in the source · abstract, characters 1119–1290

Title

Diurnal timing influences metabolic reprogramming and resistance of Brassica oleracea to Xanthomonas campestris infection

Carmen Vega-Álvarez; Pilar Soengas; Lorena Álvarez-Iglesias; et al. Plant Stress 2026. doi:10.1016/j.stress.2026.101392

Other claims from this paper (7)

Intervention effect Inoculation at the end of the photoperiod consistently reduced disease severity in Brassica oleracea compared with morning infection.
Intervention effect PM-infected plants showed increased TCA-cycle intermediates, branched-chain amino acids and jasmonate-related lipids.
Intervention effect PM-infected plants showed increased fatty acid primary amides.
Intervention effect Oleamide accumulated specifically in PM-infected Brassica oleracea plants.
Intervention effect Exogenous oleamide application induced stable lipid and phenylpropanoid remodeling in Brassica oleracea.
Intervention effect Oleamide treatment increased endogenous oleamide in Brassica oleracea.
Observation Oleamide directly inhibited growth of Xanthomonas campestris pv. campestris in vitro.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Six Xcc strains were highly aggressive in Brassica.

Taxon: BrassicaBrassicae0
Interactor: Xanthomonas campestris pv. campestrisXanthomonas campestris pv. campestrise1pathogen
Outcome: 6 highly aggressive strainse0
Value: 6e0

Verbatim

e0
“evaluated their pathogenicity in 5 Brassica accessions, identifying 6 highly aggressive strains”
✓ located verbatim in the source · abstract, characters 449–544

e1
“Xanthomonas campestris pv. campestris (Xcc)”
✓ located verbatim in the source · abstract, characters 26–69

Title

Genome-wide T3E analysis reveals key pathogenicity factors in Xanthomonas campestris pv. campestris strains with high virulence in Brassica

Guo Chen; Congcong Kong; Linping Wang; et al. PLANT PHYSIOLOGY 2026. doi:10.1093/plphys/kiag067

Other claims from this paper (7)

Observation TALEs occurred in about 5% of Chinese Xcc strains.
Intervention effect Deleting tal retained full virulence in Brassica.
Observation Genome sequencing identified 33 Xops.
Intervention effect Deleting xopQ, xopX-1, xopAM or xopN raised disease indices by over 10% in G1180.
Intervention effect Deleting xopK or xopN reduced disease indices and bacterial counts in G87-534.
Intervention effect XopQ, XopX-1 and XopN expression triggered a cabbage hypersensitive response.
Mechanism Five effectors suppressed PR1 or WRKY expression.

Observationobservedoriginal resultmeasured

Claim · model-written summary

TALEs occurred in about 5% of Chinese Xcc strains.

Taxon: BrassicaBrassicae1
Interactor: Xanthomonas campestris pv. campestrisXanthomonas campestris pv. campestrise2pathogen
Outcome: TALEs in only ∼5% of Chinese Xcc strainse0
Value: ∼5%e0

Verbatim

e0
“Southern blotting revealed TALEs in only ∼5% of Chinese Xcc strains”
✓ located verbatim in the source · abstract, characters 546–613

e1
“BR occurrence in Brassica crops”
✓ located verbatim in the source · abstract, characters 705–736

e2
“Xanthomonas campestris pv. campestris (Xcc)”
✓ located verbatim in the source · abstract, characters 26–69

Title

Genome-wide T3E analysis reveals key pathogenicity factors in Xanthomonas campestris pv. campestris strains with high virulence in Brassica

Guo Chen; Congcong Kong; Linping Wang; et al. PLANT PHYSIOLOGY 2026. doi:10.1093/plphys/kiag067

Other claims from this paper (7)

Observation Six Xcc strains were highly aggressive in Brassica.
Intervention effect Deleting tal retained full virulence in Brassica.
Observation Genome sequencing identified 33 Xops.
Intervention effect Deleting xopQ, xopX-1, xopAM or xopN raised disease indices by over 10% in G1180.
Intervention effect Deleting xopK or xopN reduced disease indices and bacterial counts in G87-534.
Intervention effect XopQ, XopX-1 and XopN expression triggered a cabbage hypersensitive response.
Mechanism Five effectors suppressed PR1 or WRKY expression.