Abstract
Abstract Tomato plants ( Solanum lycopersicum L. ) in controlled climate greenhouse setting were treated with 25 mg plant −1 of foliar nickel (Ni), calcium (Ca) nutrient management levels of high calcium (HC) or low calcium (LC), while under full water (W) or simulated drought (D) irrigation conditions. This study compared overall plant growth and yield, nutrient intake, and gene expression of Ni-associated urease ( Ure ), stress-related glyoxalase I, II ( Gly I, II ), GSH1 encoding gamma-EC synthase and GSH2 encoding glutathione synthetase (the two enzymes synthesizing glutathione) for abiotic stress mitigation. Results demonstrated that foliar Ni increased tomato biomass for both irrigation Ca level treatments by ≤ 70%. Tomato plants treated with foliar Ni expressed higher levels of GlyI, GlyII , GSH1, GSH2, and Ure by up to eight-fold. Foliar Ni application resulted in a maximum increase in tomato leaf nitrogen (N) content from 15 to 41 g kg −1 dry weight when W + HC conditions were applied. Tomato plants treated with Ni also had improved leaf potassium (K) content (≤ 30%), Ca content (≤ 20%), and iron (Fe) content (≤ 100%), demonstrating the potential benefit of Ni application to overall plant health. Evaluation of Ni concentration in fruit and leaves did not show elevated Ni accumulation in fruit (5.7–2.7 mg kg −1 dry weight) or plant leaf (2.2–13.2 mg kg −1 dry weight). The observed lower Ni loading in most plants treated with foliar Ni and W conditions indicated that foliar Ni application does not affect fruit quality or food safety considerations.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 8
Claim · model-written summary
Foliar Ni increased tomato biomass by up to 70% for both irrigation and Ca level treatments.
- Taxon
- tomato
Solanum lycopersicume1 - Treatment
- foliar Nie1
- Outcome
- tomato biomasse1
- Direction
- increasede1
- Value
- ≤ 70%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“foliar Ni increased tomato biomass for both irrigation Ca level treatments by ≤ 70%”
Claim · model-written summary
Foliar Ni-treated tomato plants expressed higher levels of glyoxalase genes GlyI and GlyII by up to eight-fold.
- Taxon
- TomatoSolanum lycopersicume1
- Treatment
- foliar Nie1
- Gene
- GlyI, GlyIIe1
- Outcome
- levelse1
- Direction
- highere1
- Value
- eight-folde1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Tomato plants treated with foliar Ni expressed higher levels of GlyI, GlyII , GSH1, GSH2, and Ure by up to eight-fold”
Claim · model-written summary
Foliar Ni-treated tomato plants expressed higher levels of GSH1, GSH2 and Ure by up to eight-fold.
- Taxon
- TomatoSolanum lycopersicume1
- Treatment
- foliar Nie1
- Gene
- GSH1, GSH2, and Uree1
- Outcome
- levelse1
- Direction
- highere1
- Value
- eight-folde1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Tomato plants treated with foliar Ni expressed higher levels of GlyI, GlyII , GSH1, GSH2, and Ure by up to eight-fold”
Claim · model-written summary
Foliar Ni application produced a maximum increase in tomato leaf nitrogen content from 15 to 41 g kg-1 dry weight under full water plus high calcium conditions.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- Foliar Ni applicatione1
- Outcome
- tomato leaf nitrogen (N) contente1
- Direction
- maximum increasee1
- Value
- 15 to 41 g kg −1 dry weighte1
- Qualifier
- W + HC conditionse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Foliar Ni application resulted in a maximum increase in tomato leaf nitrogen (N) content from 15 to 41 g kg −1 dry weight when W + HC conditions were applied”
Claim · model-written summary
Ni-treated tomato plants had improved leaf potassium content (up to 30%).
- Taxon
- TomatoSolanum lycopersicume1
- Treatment
- Nie1
- Outcome
- leaf potassium (K) contente1
- Direction
- improvede1
- Value
- ≤ 30%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Tomato plants treated with Ni also had improved leaf potassium (K) content (≤ 30%), Ca content (≤ 20%), and iron (Fe) content (≤ 100%)”
Claim · model-written summary
Ni-treated tomato plants had improved leaf Ca content (up to 20%).
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Tomato plants treated with Ni also had improved leaf potassium (K) content (≤ 30%), Ca content (≤ 20%), and iron (Fe) content (≤ 100%)”
Claim · model-written summary
Ni-treated tomato plants had improved leaf iron content (up to 100%).
- Taxon
- TomatoSolanum lycopersicume1
- Treatment
- Nie1
- Outcome
- iron (Fe) contente1
- Direction
- improvede1
- Value
- ≤ 100%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Tomato plants treated with Ni also had improved leaf potassium (K) content (≤ 30%), Ca content (≤ 20%), and iron (Fe) content (≤ 100%)”
Claim · model-written summary
The authors conclude that foliar Ni application does not affect tomato fruit quality or food safety considerations.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- foliar Ni applicatione1
- Outcome
- fruit quality or food safety considerationse1
- Direction
- does not affecte1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“foliar Ni application does not affect fruit quality or food safety considerations”
t0“Tomato”
The same questions in other papers
nickel atom · quality: grain · Solanum lycopersicum (tomato)Positive and negative results
1 in the opposite direction
- positive
nickel atom · nutrient: content · Solanum lycopersicum (tomato)Positive and negative results
2 papers in the same direction as this paper · 3 in the opposite direction
- positive
- negative
- negative
2 papers more in this group
See all 6 papers →nickel atom · growth · Solanum lycopersicum (tomato)Positive and negative results
4 papers in the same direction as this paper · 8 in the opposite direction
- negative
- negative
- negative
9 papers more in this group
See all 13 papers →nickel atom · molecular: metabolites · Solanum lycopersicum (tomato)Results agree
1 paper in the same direction as this paper
- positive
application · quality: grain · Solanum lycopersicum (tomato)Positive and negative results
4 papers in the same direction as this paper · 24 in the opposite direction
- positive
- positive
- positive
25 papers more in this group
See all 29 papers →application · nutrient: content · Solanum lycopersicum (tomato)Positive and negative results
61 papers in the same direction as this paper · 7 in the opposite direction
- negative
- negative
- no effect
65 papers more in this group
See all 69 papers →application · growth · Solanum lycopersicum (tomato)Positive and negative results
224 papers in the same direction as this paper · 26 in the opposite direction · 2 reporting no difference from an alternative
- no effect
- negative
- negative
249 papers more in this group
See all 253 papers →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.