Search claims · PlantClaims

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Acute Cu2+ exposure for 24 hours increases H2O2 level in maize leaves

Taxon: maizeZea mayst0
Treatment: acute Cu2+ exposure for 24 hourse1
Outcome: H2O2 levele1
Direction: increasese1

Not reportedComparator

Verbatim

t0
“in maize leaves”
✓ located verbatim in the source · title, characters 89–104

e1
“acute Cu2+ exposure for 24 hours led to rapid increases of H2O2 level and the increase in ZmMPK3 activity as well as the total activities of antioxidant enzymes SOD, CAT and APX”
✓ located verbatim in the source · abstract, characters 764–941

Title

Copper-caused oxidative stress triggers the activation of antioxidant enzymes via ZmMPK3 in maize leaves

Jianxia Liu; Jinxiang Wang; Shaochin Lee; et al. PLoS ONE 2018. doi:10.1371/journal.pone.0203612

Other claims from this paper (9)

Intervention effect Acute Cu2+ exposure for 24 hours increases ZmMPK3 activity in maize leaves
Intervention effect Acute Cu2+ exposure for 24 hours increases total activities of antioxidant enzymes SOD, CAT and APX in maize leaves
Intervention effect The H2O2 scavenger DMTU inhibits the Cu2+-increased H2O2 level in maize leaves
Intervention effect The H2O2 scavenger DMTU inhibits the Cu2+-increased activity of ZmMPK3 in maize leaves
Intervention effect The H2O2 scavenger DMTU inhibits the Cu2+-increased activities of antioxidant enzymes SOD, CAT and APX in maize leaves
Intervention effect The MAPK inhibitor PD98059 significantly blocks the Cu2+-increased activities of ZmMPK3, CAT and APX in maize leaves
Intervention effect The MAPK inhibitor PD98059 significantly blocks the Cu2+-increased SOD activity in maize leaves
Intervention effect The MAPK inhibitor PD98059 does not affect H2O2 accumulation in maize leaves
Mechanism Cu2+ causes oxidative stress that activates antioxidant enzymes via the MAPK pathway, with the signalling pathway Cu2+-H2O2-ZmMPK3-antioxidant enzymes

Intervention effectobservedoriginal resultmixedmeasured

Claim · model-written summary

In the ABA biosynthetic mutant notabilis, BR induced only transient increases in RBOH1 expression, NADPH oxidase activity, H2O2 accumulation and stress tolerance responses.

Taxon: tomatoSolanum lycopersicumt0
Material: notabilise0
Treatment: BRe0
Outcome: these responsese0
Direction: increasese0
Qualifier: transiente0

Not reportedComparator

Verbatim

t0
“tomato”
✓ located verbatim in the source · title, characters 68–74

e0
“BR could only induced transient increases in these responses in the ABA biosynthetic mutant notabilis (not)”
✓ located verbatim in the source · abstract, characters 473–580

Title

H2O2 mediates the crosstalk of brassinosteroid and abscisic acid in tomato responses to heat and oxidative stresses

Jie Zhou; Jian Wang; Xin Li; et al. Journal of Experimental Botany 2014. doi:10.1093/jxb/eru217

Other claims from this paper (11)

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Treated infected plants showed increases in H₂O₂ and phenolic content.

Taxon: tomatoSolanum lycopersicumt0
Treatment: treated plantse0
Interactor: FORLe0pathogen
Outcome: H₂O₂ and phenolic contente0
Direction: increasese0

Not reportedComparator

Verbatim

e0
“Upon FORL infection, treated plants exhibited strong upregulation of PR1, chitinase and β-1,3-glucanase genes mirrored by sustained increases in H₂O₂ and phenolic content and peroxidase, catalase, chitinase and β-1,3-glucanase activity.”
✓ located verbatim in the source · abstract, characters 1521–1757

t0
“tomato”
✓ located verbatim in the source · title, characters 54–60

Title

Yeast to the rescue: Meyerozyma guilliermondii primes tomato vigor and resistance to Fusarium crown and root rot

Zayneb Kthiri; Maissa Ben Jabeur; Chahine Karmous; et al. Plant Signaling & Behavior 2025. doi:10.1080/15592324.2025.2596486

Other claims from this paper (13)

Intervention effect Yeast treatment enhanced plant growth and chlorophyll content without pathogen.
Intervention effect Yeast priming altered PR1, β-1,3-glucanase and chitinase genes.
Intervention effect Yeast priming altered P69G gene.
Intervention effect Yeast priming altered peroxidase, chitinase, and β-1,3-glucanase.
Intervention effect Yeast priming altered phenolic content and hydrogen peroxide accumulation.
Intervention effect FORL infection produced downregulation in β-1,3-glucanase and chitinase genes.
Intervention effect FORL infection produced stability in PR1 gene expression.
Intervention effect FORL infection produced activation in peroxidase and chitinase.
Intervention effect FORL infection produced activation in catalase, β-1,3-glucanase, and accumulation of phenolics.
Intervention effect Treated infected plants showed upregulation in PR1, chitinase and β-1,3-glucanase genes.
Intervention effect Treated infected plants showed increases in peroxidase, catalase, chitinase and β-1,3-glucanase activity.
Intervention effect Yeast-induced resistance reduced FCRR severity by 61.8%.
Intervention effect Yeast-induced resistance improved growth and photosynthetic traits.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

NO donor prevented UV-B increases in MDA and H2O2 contents.

Taxon: MaizeZea mayst0
Treatment: NO donore0
Outcome: contents of malondialdehyde (MDA) and H2O2e0
Direction: prevented UV-B induced increasee0

Not reportedComparator

Verbatim

e0
“NO donor prevented UV-B induced increase in the contents of malondialdehyde (MDA) and H2O2.”
✓ located verbatim in the source · abstract, characters 1047–1138

t0
“Maize”
✓ located verbatim in the source · title, characters 83–88

Title

Protective Effect of Nitric Oxide against Oxidative Stress under UV-B Radiation in Maize Leaves

Tae-Yun Kim; Myung-Hwan Jo; Jung-Hee Hong Journal of Environmental Science International 2010. doi:10.5322/jes.2010.19.12.1323

Other claims from this paper (17)

Intervention effect UV-B decreased maize leaf length, width and weight.
Intervention effect Sodium nitroprusside significantly alleviated UV-B growth suppression.
Intervention effect NO donor allowed more green leaf tissue to survive under UV-B stress.
Intervention effect NO donor prevented chlorophyll content reduction under UV-B.
Intervention effect NO donor increased photosystem II quantum yield relative to untreated UV-B controls.
Mechanism NO was interpreted as protecting maize chloroplast membranes.
Intervention effect UV-B significantly accumulated flavonoids and anthocyanin in maize leaves.
Intervention effect NO treatment intensified the increase of flavonoids and anthocyanin.
Intervention effect UV-B caused lipid peroxidation in maize leaves.
Intervention effect UV-B induced hydrogen peroxide accumulation in maize leaves.
Mechanism NO was interpreted as an antioxidant scavenging H2O2 to protect cells.
Intervention effect NO donor increased catalase and ascorbate peroxidase activities under UV-B relative to UV-B alone.
Intervention effect PTIO arrested NO protection of leaf growth, photosynthetic pigment and radical scavenging.
Intervention effect PTIO had little effect under UV-B compared with UV-B alone.
Intervention effect LNNA significantly increased H2O2 and MDA accumulation under UV-B.
Intervention effect LNNA decreased antioxidant enzyme activities under UV-B.
Mechanism NO may signal activation of oxygen scavenging to confer UV-B tolerance.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Exogenous H2O2 causes dose-dependent transient increases in net Ca2+ influx in Arabidopsis root epidermis.

Taxon: Arabidopsis thalianaArabidopsis thalianae1
Treatment: exogenous H2O2 applicatione1
Outcome: net Ca2+ influxe1
Direction: increasese1
Qualifier: dose-dependent transiente1

Not reportedComparator

Verbatim

e1
“exogenous H2O2 application to Arabidopsis thaliana root epidermis results in dose-dependent transient increases in net Ca2+ influx”
✓ located verbatim in the source · abstract, characters 91–221

Title

Spatial variation in H₂O₂ response of Arabidopsis thaliana root epidermal Ca²⁺ flux and plasma membrane Ca²⁺ channels

Vadim Demidchik; Sergey N. Shabala; Julia M. Davies The Plant Journal 2006. doi:10.1111/j.1365-313x.2006.02971.x

Other claims from this paper (9)

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

1-MCP diminished increases in α-farnesene, CTols and H2O2 at both harvest dates.

Taxon: appleMalus domesticat1
Treatment: 1-MCP treatmente0
Outcome: concentrations of α-farnesene, CTols, and H2O2e0
Direction: diminishede0

Not reportedComparator

Verbatim

e0
“1-MCP treatment diminished the increases in the concentrations of α-farnesene, CTols, and H2O2 in fruit after both harvest dates.”
✓ located verbatim in the source · abstract, characters 1001–1130

t1
“‘Fuji’ apple”
✓ located verbatim in the source · title, characters 122–134

Title

Interactions ofα-farnesene, conjugated trienols, and anti-oxidant activity during the development of superficial scald in ‘Fuji’ apple

X. G. Lu; Y. P. Ma; L. H. Zhang; et al. The Journal of Horticultural Science and Biotechnology 2013. doi:10.1080/14620316.2013.11512966

Other claims from this paper (19)

Observation Fruit harvested at commercial maturity had less superficial scald than earlier harvested fruit.
Intervention effect 1-MCP inhibited scald at either harvest date.
Intervention effect Ethephon inhibited scald at H1.
Intervention effect Ethephon increased scald at H2.
Observation H2 fruit had lower α-farnesene, CTols and H2O2 concentrations than H1 fruit.
Observation H2 fruit had higher antioxidant activity and enzyme activities than H1 fruit.
Intervention effect 1-MCP raised TAA at H2 relative to untreated controls.
Intervention effect 1-MCP lowered TAA at H1 relative to untreated controls.
Intervention effect At late storage 1-MCP raised SOD activity in H1 fruit.
Intervention effect At late storage 1-MCP lowered CAT and POX activities in H1 fruit.
Intervention effect At late storage 1-MCP lowered all antioxidant enzyme activities in H2 fruit.
Intervention effect Ethephon stimulated α-farnesene accumulation at both harvest dates.
Intervention effect Ethephon decreased CTols and H2O2 concentrations at H1.
Intervention effect Ethephon increased CTols and H2O2 concentrations at H2.
Intervention effect Ethephon raised TAA and SOD activity in H1 fruit at late storage.
Intervention effect Ethephon had no effect on H2 fruit TAA and SOD activity.
Intervention effect Ethephon raised CAT and POX activities at H2.
Intervention effect Ethephon lowered CAT and POX activities at H1.
Mechanism Scald related oxidative stress depends on combined production and scavenging of free radicals.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Exogenous SA increased H2O2, CAT, and POD activities.

Taxon: rubber treeHevea brasiliensist0
Treatment: exogenous SAe0
Outcome: H2O2, CAT, PODe0
Direction: increasese0

Not reportedComparator

Verbatim

e0
“exogenous SA promoted the increases of H2O2, CAT, POD and phenylalanine ammonia lyase (PAL) activities”
✓ located verbatim in the source · abstract, characters 599–701

t0
“Rubber Tree”
✓ located verbatim in the source · title, characters 37–48

Title

Salicylic Acid Induces Resistance in Rubber Tree against Phytophthora palmivora

Nuramalee Deenamo; Arnannit Kuyyogsuy; Khemmikar Khompatara; et al. International Journal of Molecular Sciences 2018. doi:10.3390/ijms19071883

Other claims from this paper (9)

Intervention effect SA pretreatment reduced disease severity by 41%.
Intervention effect SA increased H2O2 level and CAT and POD activities.
Intervention effect Exogenous SA increased PAL activity.
Intervention effect Exogenous SA increased lignin, endogenous SA, and scopoletin contents.
Intervention effect SA affected CAT isoforms differently among organs.
Observation Three partial CAT cDNAs were isolated.
Observation A partial HbPAL cDNA was isolated.
Intervention effect SA induced expression of HbCAT1, HbPAL, and HbPR1.
Mechanism Authors suggest elevated defense components could potentiate resistance.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SiRAV1 overexpression alleviated salt-induced increases in H2O2, MDA, and electrolyte leakage.

Taxon: Setaria italicaSetaria italicat0
Treatment: overexpressing SiRAV1e0
Gene: SiRAV1e0
Outcome: H2O2 accumulation, malondialdehyde (MDA) content and percent of electrolyte leakagee0
Direction: alleviatede0

Not reportedComparator

Verbatim

t0
“Setaria italica”
✓ located verbatim in the source · title, characters 95–110

e0
“overexpressing SiRAV1 in foxtail millet enhanced salt tolerance and alleviated the salt-induced increases of H2O2 accumulation, malondialdehyde (MDA) content and percent of electrolyte leakage.”
✓ located verbatim in the source · abstract, characters 672–865

Title

Phosphorylation of SiRAV1 at Ser31 regulates the SiCAT expression to enhance salt tolerance in Setaria italica

Qiao-lu LI; Zhi-yong LI; Meng-meng WANG; et al. Journal of Integrative Agriculture 2023. doi:10.1016/j.jia.2023.04.034

Other claims from this paper (9)

Intervention effect Salt stress induced 123 of 4000 analyzed phosphopeptides.
Observation Twenty-three transcription factors differed in expression, including a SiRAV1 Ser31 phosphopeptide.
Observation SiRAV1 was located in the nucleus.
Intervention effect SiRAV1 overexpression enhanced salt tolerance in foxtail millet.
Mechanism SiRAV1 positively regulated SiCAT expression through direct promoter binding.
Mechanism SiRAV1 modulation of SiCAT expression affected CAT activity.
Mechanism SiRAV1 Ser31 phosphorylation positively regulated salt tolerance.
Mechanism Ser31 phosphorylation enhanced SiRAV1 binding to the SiCAT promoter.
Mechanism Ser31 phosphorylation did not affect SiRAV1 subcellular localization.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Under normal conditions MB decreased root H2O2 and MDA concentrations.

Taxon: tomatoSolanum lycopersicumt0
Treatment: Methylene bluet0
Outcome: root H2O2 and malonyldialdehyde (MDA) concentrationse0
Direction: decreasede0

Not reportedComparator

Verbatim

e0
“decreased root H2O2 and malonyldialdehyde (MDA) concentrations”
✓ located verbatim in the source · abstract, characters 1011–1073

t0
“Methylene blue increases the tolerance of tomato”
✓ located verbatim in the source · title, characters 0–48

Title

Methylene blue increases the tolerance of tomato plants to abiotic stresses

B. Aloni; L. Karni; H. Aktas The Journal of Horticultural Science and Biotechnology 2010. doi:10.1080/14620316.2010.11512685

Other claims from this paper (10)

Intervention effect Under normal conditions MB enhanced root and shoot growth.
Intervention effect Under normal conditions MB increased root respiration.
Intervention effect Under normal conditions MB enhanced root SOD activity.
Intervention effect High salinity impaired root and shoot growth.
Intervention effect High root temperature impaired root and shoot growth.
Intervention effect High salinity enhanced root oxidative stress.
Intervention effect High root temperature enhanced root oxidative stress.
Intervention effect MB significantly protected tomato against both abiotic stresses.
Intervention effect MB restored root and leaf H2O2 and MDA almost to normal levels.
Mechanism The authors hypothesize that additional root cellular targets may mediate MB protection.

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Dehydration significantly increased H2O2 and O2− levels.

Taxon: TomatoSolanum lycopersicumt0
Treatment: dehydration stresse0
Outcome: H2O2 and O2− levelse0
Direction: increasese0

Not reportedComparator

Verbatim

t0
“Tomato Leaves”
✓ located verbatim in the source · title, characters 28–41

e0
“dehydration stress triggered oxidative stress as we detected significant increases in H2O2 and O2− levels.”
✓ located verbatim in the source · abstract, characters 909–1015

Title

Transcriptomic Profiling of Tomato Leaves Identifies Novel Transcription Factors Responding to Dehydration Stress

Shuchao Dong; Jiayi Ling; Liuxia Song; et al. International Journal of Molecular Sciences 2023. doi:10.3390/ijms24119725

Other claims from this paper (12)

Intervention effect Dehydration decreased tomato leaf relative water content after 2 h.
Intervention effect Dehydration increased malondialdehyde content after 4 h.
Intervention effect Dehydration increased ion leakage ratio after 12 h.
Intervention effect Dehydration enhanced POD, SOD and CAT antioxidant enzyme activities.
Intervention effect Dehydration enhanced PAL activity.
Method / resource RNA sequencing identified 8116 DEGs after 2 h of dehydration.
Method / resource RNA sequencing identified 5670 DEGs after 4 h of dehydration.
Observation DEGs included genes involved in translation, photosynthesis, stress response and cytoplasmic translation.
Observation RNA sequencing identified 742 transcription factors differentially expressed after 2 h versus control.
Observation After 4 h dehydration, 499 DEGs were transcription factors.
Method / resource PCR validated expression patterns of 31 differentially expressed transcription factors across seven families.
Intervention effect Six drought responsive marker genes were upregulated by dehydration.

“increases of H2O2”

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