Abstract
Tomato plants were grown hydroponically under different deficient regimes of nitrogen (N) and phosphorus (P) in the form of nitrate and phosphate. Results showed a severe reduction in growth, soluble protein and chlorophylls contents under N deficiency, which suggested accelerating of leaf senescence. Furthermore, it was accompanied by enhanced activity of peroxidase and sugars contents that were both correlated with increased shoot anthocyanins content. Under P deficiency, similar results were observed except reduced concentration of sugars and chlorophylls and that both peroxidase activity and anthocyanins contents were higher in P-deficient plants. On the whole, tomato showed reduced tolerance to N than P deficiency, although N deficiency was more damaging. Reduced content of soluble proteins was an important criterion of N and P tolerance. Plant tolerance to low P supply was accompanied by increased activity of peroxidases and accumulation of anthocyanins.
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Claims 8
Claim · model-written summary
Nitrogen deficiency severely reduced tomato growth, soluble protein, and chlorophyll contents.
- Taxon
- Tomato
Solanum lycopersicumt0 - Treatment
- N deficiencye0
- Outcome
- growth, soluble protein and chlorophylls contentse0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a severe reduction in growth, soluble protein and chlorophylls contents under N deficiency”
t0“Tomato to N and P Deficiency”
Claim · model-written summary
Nitrogen deficiency enhanced peroxidase activity and sugar contents.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- N deficiencye1
- Outcome
- activity of peroxidase and sugars contentse0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“enhanced activity of peroxidase and sugars contents”
e1“a severe reduction in growth, soluble protein and chlorophylls contents under N deficiency”
t0“Tomato to N and P Deficiency”
Claim · model-written summary
Peroxidase activity and sugar contents correlated with increased shoot anthocyanin content.
- Taxon
- TomatoSolanum lycopersicumt0
- Compound
- sugarse0
- Outcome
- shoot anthocyanins contente0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“peroxidase and sugars contents that were both correlated with increased shoot anthocyanins content”
t0“Tomato to N and P Deficiency”
Claim · model-written summary
Phosphorus deficiency reduced sugar and chlorophyll concentrations.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- P deficiencye0
- Outcome
- concentration of sugars and chlorophyllse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under P deficiency, similar results were observed except reduced concentration of sugars and chlorophylls”
t0“Tomato to N and P Deficiency”
Claim · model-written summary
Peroxidase activity and anthocyanin contents were higher in P-deficient tomato.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- P-deficiente0
- Outcome
- peroxidase activity and anthocyanins contentse0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both peroxidase activity and anthocyanins contents were higher in P-deficient plants”
t0“Tomato to N and P Deficiency”
Claim · model-written summary
Tomato showed lower tolerance to N than P deficiency.
- Taxon
- tomatoSolanum lycopersicume0
- Outcome
- tolerancee0
- Direction
- reducede0
- Comparator
- P deficiencye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato showed reduced tolerance to N than P deficiency”
Claim · model-written summary
Nitrogen deficiency was more damaging than phosphorus deficiency.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- damaginge0
- Direction
- moree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N deficiency was more damaging”
t0“Tomato to N and P Deficiency”
Claim · model-written summary
Reduced soluble protein content was identified as a criterion of N and P tolerance.
- Taxon
- TomatoSolanum lycopersicumt0
- Compound
- soluble proteinse0
- Outcome
- N and P tolerancee0
Not reportedOrgan / stageDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Reduced content of soluble proteins was an important criterion of N and P tolerance”
t0“Tomato to N and P Deficiency”
The same questions in other papers
nitrogen · physiology: osmolytes · Solanum lycopersicum (tomato)Positive and negative results
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This paper is about lacking the nutrient, so it counts the other way round here.
- no effect
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14 papers in the same direction as this paper · 7 in the opposite direction
This paper is about lacking the nutrient, so it counts the other way round here.
- no effect
- no effect
- no effect
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See all 22 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.