Abstract
Micronutrients play a critical role in plant growth and development, and their deficiency can have adverse effects on plant performance. These elements can also influence plant physiological processes as they are incorporated into the molecular structure of enzymes as cofactors. In this study, the impact of a micronutrient solution containing manganese (125 ppm), iron (200 ppm), zinc (60 ppm), and copper (20 ppm) was investigated on the growth parameters, yield, and antioxidant enzyme activity of tomato (Solanum lycopersicum) plants. Greenhouse tomatoes (cultivar Jet Star F1) were irrigated with the above-mentioned concentrations of elements in a completely randomized design, with five independent biological replicates. The micronutrient treatment increased the specific activities of superoxide dismutase, ascorbate peroxidase, glutathione reductase, guaiacol peroxidase, catalase, and phenylalanine ammonia-lyase, as well as the phenol and salicylic acid contents in tomato leaves. However, the malondialdehyde level and electrolyte leakage index were unaffected. Analysis of the plant growth parameters revealed that the micronutrients increased the stem diameter, root length, number of leaves, stem height, and fruit’s fresh weight in the treated plants. Overall, our results indicated that micronutrients positively affected the growth and development of tomato plants without adverse effects on the health indices. Moreover, the application of micronutrients can magnify the antioxidant capacity of tomato plants through increasing enzyme activity, as well as the phenol and salicylic acid levels. These changes would benefit those plants under abiotic/biotic stress conditions, where elevated levels of antioxidant activities are crucial.
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Claims 7
Claim · model-written summary
Micronutrient treatment increased the specific activities of superoxide dismutase, ascorbate peroxidase and glutathione reductase in tomato.
- Taxon
- tomato
Solanum lycopersicume1 - Material
- Jet Star F1e2
- Treatment
- micronutrient solution containing manganese (125 ppm), iron (200 ppm), zinc (60 ppm), and copper (20 ppm)e6
- Outcome
- specific activities of superoxide dismutase, ascorbate peroxidase, glutathione reductasee1
- Direction
- increasede1
- Setting
- Greenhousee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The micronutrient treatment increased the specific activities of superoxide dismutase, ascorbate peroxidase, glutathione reductase, guaiacol peroxidase, catalase, and phenylalanine ammonia-lyase, as well as the phenol and salicylic acid contents in tomato leaves”
e2“Greenhouse tomatoes (cultivar Jet Star F1)”
e6“a micronutrient solution containing manganese (125 ppm), iron (200 ppm), zinc (60 ppm), and copper (20 ppm)”
Claim · model-written summary
Micronutrient treatment increased guaiacol peroxidase, catalase and phenylalanine ammonia-lyase activities in tomato.
- Taxon
- tomatoSolanum lycopersicume1
- Material
- Jet Star F1e2
- Treatment
- micronutrient solution containing manganese (125 ppm), iron (200 ppm), zinc (60 ppm), and copper (20 ppm)e6
- Outcome
- guaiacol peroxidase, catalase, and phenylalanine ammonia-lyasee1
- Direction
- increasede1
- Setting
- Greenhousee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The micronutrient treatment increased the specific activities of superoxide dismutase, ascorbate peroxidase, glutathione reductase, guaiacol peroxidase, catalase, and phenylalanine ammonia-lyase, as well as the phenol and salicylic acid contents in tomato leaves”
e2“Greenhouse tomatoes (cultivar Jet Star F1)”
e6“a micronutrient solution containing manganese (125 ppm), iron (200 ppm), zinc (60 ppm), and copper (20 ppm)”
Claim · model-written summary
Micronutrient treatment increased phenol and salicylic acid contents in tomato leaves.
- Taxon
- tomatoSolanum lycopersicume1
- Material
- Jet Star F1e2
- Organ / stage
- leavese1
- Treatment
- micronutrient solution containing manganese (125 ppm), iron (200 ppm), zinc (60 ppm), and copper (20 ppm)e6
- Outcome
- phenol and salicylic acid contentse1
- Direction
- increasede1
- Setting
- Greenhousee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The micronutrient treatment increased the specific activities of superoxide dismutase, ascorbate peroxidase, glutathione reductase, guaiacol peroxidase, catalase, and phenylalanine ammonia-lyase, as well as the phenol and salicylic acid contents in tomato leaves”
e2“Greenhouse tomatoes (cultivar Jet Star F1)”
e6“a micronutrient solution containing manganese (125 ppm), iron (200 ppm), zinc (60 ppm), and copper (20 ppm)”
Claim · model-written summary
Micronutrient treatment did not change malondialdehyde level or electrolyte leakage index in tomato.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- micronutrient solution containing manganese (125 ppm), iron (200 ppm), zinc (60 ppm), and copper (20 ppm)e6
- Outcome
- malondialdehyde level and electrolyte leakage indexe4
- Direction
- unaffectede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“However, the malondialdehyde level and electrolyte leakage index were unaffected”
e1“The micronutrient treatment increased the specific activities of superoxide dismutase, ascorbate peroxidase, glutathione reductase, guaiacol peroxidase, catalase, and phenylalanine ammonia-lyase, as well as the phenol and salicylic acid contents in tomato leaves”
e6“a micronutrient solution containing manganese (125 ppm), iron (200 ppm), zinc (60 ppm), and copper (20 ppm)”
Claim · model-written summary
Micronutrient treatment increased stem diameter, root length and number of leaves in tomato.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- micronutrient solution containing manganese (125 ppm), iron (200 ppm), zinc (60 ppm), and copper (20 ppm)e6
- Outcome
- stem diameter, root length, number of leavese5
- Direction
- increasede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“the micronutrients increased the stem diameter, root length, number of leaves, stem height, and fruit’s fresh weight in the treated plants”
e1“The micronutrient treatment increased the specific activities of superoxide dismutase, ascorbate peroxidase, glutathione reductase, guaiacol peroxidase, catalase, and phenylalanine ammonia-lyase, as well as the phenol and salicylic acid contents in tomato leaves”
e6“a micronutrient solution containing manganese (125 ppm), iron (200 ppm), zinc (60 ppm), and copper (20 ppm)”
Claim · model-written summary
Micronutrient treatment increased stem height and fruit fresh weight in tomato.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- micronutrient solution containing manganese (125 ppm), iron (200 ppm), zinc (60 ppm), and copper (20 ppm)e6
- Outcome
- stem height, and fruit’s fresh weighte5
- Direction
- increasede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“the micronutrients increased the stem diameter, root length, number of leaves, stem height, and fruit’s fresh weight in the treated plants”
e1“The micronutrient treatment increased the specific activities of superoxide dismutase, ascorbate peroxidase, glutathione reductase, guaiacol peroxidase, catalase, and phenylalanine ammonia-lyase, as well as the phenol and salicylic acid contents in tomato leaves”
e6“a micronutrient solution containing manganese (125 ppm), iron (200 ppm), zinc (60 ppm), and copper (20 ppm)”
Claim · model-written summary
Micronutrient application can magnify the antioxidant capacity of tomato through increased enzyme activity and phenol and salicylic acid levels.
- Taxon
- tomatoSolanum lycopersicume6
- Treatment
- application of micronutrientse6
- Compound
- salicylic acide6
- Outcome
- antioxidant capacitye6
- Qualifier
- through increasing enzyme activitye6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“the application of micronutrients can magnify the antioxidant capacity of tomato plants through increasing enzyme activity, as well as the phenol and salicylic acid levels”
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See all 5 papers →8 of 15 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.