Abstract
High Resolution Image Download MS PowerPoint Slide Accumulation of cadmium (Cd) ions in soil is an increasingly acute ecological problem in agriculture production. Selenium nanoparticles (SeNPs) can mediate Cd tolerance in plants; however, the underlying mechanisms remain unclear. Herein, we show that the foliar application of SeNPs improved the adaptive capacity of tomato plants to decrease Cd-induced damage. SeNPs induced more Cd in roots but not in shoots despite greater accumulation of selenium and sulfur in both tissues and high selenate influx. Additionally, SeNPs significantly increased thiol compounds, including glutathione, cysteine, and phytochelatins, contributing to enhanced Cd detoxification. Importantly, SeNPs induced the expression of sulfate transporters 1:3, S-adenosylmethionine 1 and polyamine transporter 3 . Then, experiments with mutants of these genes showed that SeNP-reduced Cd stress largely relies on the levels and shoot-to-root transport of selenium/sulfur and polyamines. These findings highlight the potential of SeNPs to improve crop production and phytoremediation in heavy metal-contaminated soils.
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Claims 8
Claim · model-written summary
Foliar SeNPs improved tomato adaptive capacity against Cd damage.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- foliar application of SeNPse0
- Outcome
- adaptive capacity of tomato plantse0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the foliar application of SeNPs improved the adaptive capacity of tomato plants to decrease Cd-induced damage.”
Claim · model-written summary
SeNPs increased Cd in tomato roots.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- SeNPse0
- Outcome
- Cd in rootse0
- Direction
- moree0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SeNPs induced more Cd in roots but not in shoots despite greater accumulation of selenium and sulfur in both tissues and high selenate influx.”
t0“Tomato”
Claim · model-written summary
SeNPs did not raise Cd in tomato shoots.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- SeNPse0
- Outcome
- not in shootse0
- Direction
- not in shootse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SeNPs induced more Cd in roots but not in shoots despite greater accumulation of selenium and sulfur in both tissues and high selenate influx.”
t0“Tomato”
Claim · model-written summary
SeNPs increased selenium and sulfur accumulation in roots and shoots.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- SeNPse0
- Outcome
- accumulation of selenium and sulfur in both tissuese0
- Direction
- greatere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SeNPs induced more Cd in roots but not in shoots despite greater accumulation of selenium and sulfur in both tissues and high selenate influx.”
t0“Tomato”
Claim · model-written summary
SeNPs were associated with high selenate influx.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- SeNPse0
- Outcome
- selenate influxe0
- Direction
- highe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SeNPs induced more Cd in roots but not in shoots despite greater accumulation of selenium and sulfur in both tissues and high selenate influx.”
t0“Tomato”
Claim · model-written summary
SeNPs significantly increased glutathione, cysteine and phytochelatins.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- SeNPse0
- Outcome
- thiol compounds, including glutathione, cysteine, and phytochelatinse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SeNPs significantly increased thiol compounds, including glutathione, cysteine, and phytochelatins”
t0“Tomato”
Claim · model-written summary
SeNPs induced expression of three transport and metabolism genes.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- SeNPse0
- Outcome
- expression of sulfate transporters 1:3, S-adenosylmethionine 1 and polyamine transporter 3e0
- Direction
- inducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SeNPs induced the expression of sulfate transporters 1:3, S-adenosylmethionine 1 and polyamine transporter 3”
t0“Tomato”
Claim · model-written summary
Mutant experiments indicated SeNP mitigation of Cd stress relies largely on selenium/sulfur and polyamine levels and transport.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- SeNP-reduced Cd stresse0
- Qualifier
- levels and shoot-to-root transport of selenium/sulfur and polyaminese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“experiments with mutants of these genes showed that SeNP-reduced Cd stress largely relies on the levels and shoot-to-root transport of selenium/sulfur and polyamines.”
t0“Tomato”
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