Abstract
Tomato seedlings were used as experimental materials and treated with 1.0, 2.0, 3.0, and 4.0 mg/L ozone water irrigation and 0.2, 0.4, 0.6, and 0.8 mg/L ozone water spray treatments. Indexes including the malondialdehyde (MDA) content, superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT), activities, soil and plant analysis development (SPAD) value, and nitrogen content of leaves were measured. Furthermore, the expression of antioxidant enzyme, chlorophyll synthesis and nitrogen absorption genes was analyzed after optimal ozone water treatment. The results showed that the activities of antioxidant enzymes in tomato leaves were significantly increased, and the MDA content in tomato leaves was significantly reduced by ozone water irrigation and spray treatment, which indicated that ozone water treatment can significantly improve the stress tolerance of tomato seedlings. Ozone water irrigation and spraying could also significantly increase the leaf SPAD value and nitrogen content of tomato seedlings, and the optimal concentrations of ozone water irrigation and spraying were 3.0 mg/L and 0.6 mg/L, respectively. The effect of ozone water irrigation on improving the physiological characteristics of tomato seedlings was better than that of spraying. After treatment with the optimal concentration of ozone water, the relative expression of antioxidant enzyme, chlorophyll synthesis, and nitrogen absorption genes was significantly increased, and the maximum expression level was reached at 12 h. In addition, ozone water irrigation could promote the expression of genes more than ozone water spraying, which was consistent with the improvements in the physiological characteristics of the tomato seedlings.
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Claims 10
Claim · model-written summary
Ozone water irrigation increased antioxidant enzyme activities in tomato leaves.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- ozone water irrigatione0
- Outcome
- activities of antioxidant enzymese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“activities of antioxidant enzymes in tomato leaves were significantly increased, and the MDA content in tomato leaves was significantly reduced by ozone water irrigation and spray treatment”
Claim · model-written summary
Ozone water spraying increased antioxidant enzyme activities in tomato leaves.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- spray treatmente0
- Outcome
- activities of antioxidant enzymese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“activities of antioxidant enzymes in tomato leaves were significantly increased, and the MDA content in tomato leaves was significantly reduced by ozone water irrigation and spray treatment”
Claim · model-written summary
Ozone water irrigation reduced MDA content in tomato leaves.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- ozone water irrigatione0
- Outcome
- MDA contente0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the MDA content in tomato leaves was significantly reduced by ozone water irrigation and spray treatment”
Claim · model-written summary
Ozone water spraying reduced MDA content in tomato leaves.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- spray treatmente0
- Outcome
- MDA contente0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the MDA content in tomato leaves was significantly reduced by ozone water irrigation and spray treatment”
Claim · model-written summary
Ozone water irrigation increased leaf SPAD value and nitrogen content in tomato seedlings.
- Taxon
- tomato seedlingsSolanum lycopersicume0
- Treatment
- Ozone water irrigatione0
- Outcome
- leaf SPAD value and nitrogen contente0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ozone water irrigation and spraying could also significantly increase the leaf SPAD value and nitrogen content of tomato seedlings”
Claim · model-written summary
Ozone water spraying increased leaf SPAD value and nitrogen content in tomato seedlings.
- Taxon
- tomato seedlingsSolanum lycopersicume0
- Treatment
- sprayinge0
- Outcome
- leaf SPAD value and nitrogen contente0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ozone water irrigation and spraying could also significantly increase the leaf SPAD value and nitrogen content of tomato seedlings”
Claim · model-written summary
Optimal ozone water concentrations were 3.0 mg/L for irrigation and 0.6 mg/L for spraying.
Not reportedTaxon
Verbatim
e0“the optimal concentrations of ozone water irrigation and spraying were 3.0 mg/L and 0.6 mg/L, respectively”
Claim · model-written summary
Ozone water irrigation improved tomato seedling physiological characteristics more than spraying.
- Taxon
- tomato seedlingsSolanum lycopersicume0
- Treatment
- ozone water irrigatione0
- Outcome
- physiological characteristicse0
- Direction
- bettere0
- Comparator
- sprayinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of ozone water irrigation on improving the physiological characteristics of tomato seedlings was better than that of spraying.”
Claim · model-written summary
Optimal ozone water treatment increased expression of antioxidant enzyme, chlorophyll synthesis and nitrogen absorption genes.
- Treatment
- optimal concentration of ozone watere0
- Outcome
- relative expression of antioxidant enzyme, chlorophyll synthesis, and nitrogen absorption genese0
- Direction
- increasede0
- Qualifier
- 12 he0
Not reportedTaxonComparator
Verbatim
e0“After treatment with the optimal concentration of ozone water, the relative expression of antioxidant enzyme, chlorophyll synthesis, and nitrogen absorption genes was significantly increased, and the maximum expression level was reached at 12 h.”
Claim · model-written summary
Ozone water irrigation promoted gene expression more than spraying in tomato seedlings.
- Taxon
- tomato seedlingsSolanum lycopersicume0
- Treatment
- ozone water irrigatione0
- Outcome
- expression of genese0
- Direction
- more thane0
- Comparator
- ozone water sprayinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ozone water irrigation could promote the expression of genes more than ozone water spraying, which was consistent with the improvements in the physiological characteristics of the tomato seedlings.”
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See all 175 papers →8 of 10 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.