Abstract
Silicon (Si) is known to alleviate several abiotic stresses in plants, including ammonium (NH4+) toxicity. However, the availability of Si in the nutrient solution depends on factors such as the Si source and NH4+ concentration. This study evaluated the effects of two Si sources, stabilized silicic acid (ASiE) and potassium silicate (SiK), on Micro-Tom tomato grown under NH4+ toxicity. In the first experiment, plants were supplied with 0.0, 0.2, 0.4, 0.6, and 0.8 mmol L−1 Si from either SiK or ASiE. NH4+ toxicity was induced at a NO3−:NH4+ ratio of 3.8:11.2 mmol L−1. In the second experiment, plants received 0.0, 1.0, 2.0, and 2.5 mmol L−1 Si supplied as SiK. NH4+ toxicity was induced by 5.9 mmol L−1 NH4+, while 5.9 mmol L−1 NO3− was used as the control treatment. In the first experiment, Si supply did not increase shoot Si content or Si accumulation, and NH4+ toxicity was not alleviated. In contrast, in the second experiment, Si supply increased shoot Si content and Si accumulation, resulting in greater shoot and root dry weight under NH4+ toxicity. Similarly, plants supplied with NO3− also showed increased shoot and root dry weight in response to Si application. In conclusion, low concentrations of Si supplied as either SiK or ASiE were ineffective in alleviating NH4+ toxicity. However, SiK at 1.29 mmol L−1 Si alleviated NH4+ toxicity induced by 5.9 mmol L−1 NH4+ alone.
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Claims 10
Claim · model-written summary
First-experiment silicon supply did not increase shoot silicon content.
- Taxon
- Tomato
Solanum lycopersicumt0 - Treatment
- Si supplye0
- Outcome
- shoot Si contente0
- Direction
- did not increasee0
Not reportedMaterialComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato”
e0“In the first experiment, Si supply did not increase shoot Si content or Si accumulation, and NH4+ toxicity was not alleviated.”
Claim · model-written summary
First-experiment silicon supply did not increase shoot silicon accumulation.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Si supplye0
- Outcome
- Si accumulatione0
- Direction
- did not increasee0
Not reportedMaterialComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato”
e0“In the first experiment, Si supply did not increase shoot Si content or Si accumulation, and NH4+ toxicity was not alleviated.”
Claim · model-written summary
First-experiment silicon supply did not alleviate ammonium toxicity.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Si supplye0
- Outcome
- NH4+ toxicitye0
- Direction
- not alleviatede0
Not reportedMaterialComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato”
e0“In the first experiment, Si supply did not increase shoot Si content or Si accumulation, and NH4+ toxicity was not alleviated.”
Claim · model-written summary
Second-experiment silicon supply increased shoot silicon content.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Si supplye0
- Outcome
- shoot Si contente0
- Direction
- increasede0
Not reportedMaterialComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato”
e0“In contrast, in the second experiment, Si supply increased shoot Si content and Si accumulation, resulting in greater shoot and root dry weight under NH4+ toxicity.”
Claim · model-written summary
Second-experiment silicon supply increased shoot silicon accumulation.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Si supplye0
- Outcome
- Si accumulatione0
- Direction
- increasede0
Not reportedMaterialComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato”
e0“In contrast, in the second experiment, Si supply increased shoot Si content and Si accumulation, resulting in greater shoot and root dry weight under NH4+ toxicity.”
Claim · model-written summary
Second-experiment silicon supply increased shoot and root dry weight under ammonium toxicity.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Si supplye0
- Outcome
- shoot and root dry weighte0
- Direction
- greatere0
- Qualifier
- under NH4+ toxicitye0
Not reportedMaterialComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato”
e0“In contrast, in the second experiment, Si supply increased shoot Si content and Si accumulation, resulting in greater shoot and root dry weight under NH4+ toxicity.”
Claim · model-written summary
Silicon application increased shoot and root dry weight in nitrate-supplied plants.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Si applicatione0
- Outcome
- shoot and root dry weighte0
- Direction
- increasede0
Not reportedMaterialComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato”
e0“Similarly, plants supplied with NO3− also showed increased shoot and root dry weight in response to Si application.”
Claim · model-written summary
Low silicon concentrations supplied as SiK did not alleviate ammonium toxicity.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- SiKe0
- Outcome
- NH4+ toxicitye0
- Direction
- ineffectivee0
Not reportedMaterialComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato”
e0“In conclusion, low concentrations of Si supplied as either SiK or ASiE were ineffective in alleviating NH4+ toxicity.”
Claim · model-written summary
Low silicon concentrations supplied as ASiE did not alleviate ammonium toxicity.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- ASiEe0
- Outcome
- NH4+ toxicitye0
- Direction
- ineffectivee0
Not reportedMaterialComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato”
e0“In conclusion, low concentrations of Si supplied as either SiK or ASiE were ineffective in alleviating NH4+ toxicity.”
Claim · model-written summary
SiK at 1.29 mmol L−1 silicon alleviated toxicity induced by 5.9 mmol L−1 ammonium.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- SiK at 1.29 mmol L−1 Sie0
- Outcome
- NH4+ toxicitye0
- Direction
- alleviatede0
- Qualifier
- induced by 5.9 mmol L−1 NH4+ alonee0
Not reportedMaterialComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato”
e0“However, SiK at 1.29 mmol L−1 Si alleviated NH4+ toxicity induced by 5.9 mmol L−1 NH4+ alone.”
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