Abstract
Cadmium (Cd) readily accumulates in plants during agricultural activities, leading to diminished crop yields and quality and posing a risk to humans. Silicon (Si) and iron (Fe) have shown promise in mitigating Cd toxicity, but the efficacy of their combined application to alleviate the stress of Cd remains unclear. This study focused on the physiological and transcriptomic responses of tomato seedlings to Cd stress. When tomato seedlings were subjected to Cd stress, the application of external Si and Fe effectively alleviated Cd toxicity; increased photosynthetic pigment content, antioxidant enzyme activity, and transcription factor; and improved plant growth. Transcriptome analyses revealed that photosynthetic antenna proteins, photosynthesis-related processes, and glutathione metabolism were significantly overrepresented among differentially expressed genes when plants were subjected to Si-Fe competition under Cd stress conditions. Fructose-bisphosphate aldolase is a critical component in the mechanism of the effectiveness of Si-Fe in mitigating Cd toxicity. The hub genes CAB13 and CAB6A could potentially play a role in the modulation of photorespiration and light-capture processes when subjected to Si-Fe treatment. These findings offer novel insights into the environmental impacts and underlying mechanisms governing the roles of Si and Fe in reducing Cd toxicity.
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Claims 7
Claim · model-written summary
Silicon and iron alleviated cadmium toxicity in tomato seedlings.
- Taxon
- tomato seedlings
Solanum lycopersicume1 - Treatment
- external Si and Fee0
- Outcome
- Cd toxicitye0
- Direction
- alleviatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of external Si and Fe effectively alleviated Cd toxicity”
e1“physiological and transcriptomic responses of tomato seedlings to Cd stress”
e2“the application of external Si and Fe”
Claim · model-written summary
Silicon and iron increased photosynthetic pigment content and antioxidant enzyme activity.
- Taxon
- tomato seedlingsSolanum lycopersicume1
- Treatment
- external Si and Fee2
- Outcome
- photosynthetic pigment content, antioxidant enzyme activitye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased photosynthetic pigment content, antioxidant enzyme activity, and transcription factor”
e1“physiological and transcriptomic responses of tomato seedlings to Cd stress”
e2“the application of external Si and Fe”
Claim · model-written summary
Silicon and iron increased transcription factor response.
- Taxon
- tomato seedlingsSolanum lycopersicume1
- Treatment
- external Si and Fee2
- Outcome
- transcription factore0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased photosynthetic pigment content, antioxidant enzyme activity, and transcription factor”
e1“physiological and transcriptomic responses of tomato seedlings to Cd stress”
e2“the application of external Si and Fe”
Claim · model-written summary
Silicon and iron improved tomato seedling growth under cadmium stress.
- Taxon
- tomato seedlingsSolanum lycopersicume1
- Treatment
- external Si and Fee2
- Outcome
- plant growthe0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“improved plant growth”
e1“physiological and transcriptomic responses of tomato seedlings to Cd stress”
e2“the application of external Si and Fe”
Claim · model-written summary
Photosynthesis and glutathione metabolism genes were overrepresented among differential expression results.
- Taxon
- tomato seedlingsSolanum lycopersicume1
- Outcome
- photosynthetic antenna proteins, photosynthesis-related processes, and glutathione metabolisme0
- Direction
- overrepresentede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“photosynthetic antenna proteins, photosynthesis-related processes, and glutathione metabolism were significantly overrepresented among differentially expressed genes”
e1“physiological and transcriptomic responses of tomato seedlings to Cd stress”
e2“the application of external Si and Fe”
Claim · model-written summary
Fructose-bisphosphate aldolase was identified as critical to mitigation of cadmium toxicity.
- Taxon
- tomato seedlingsSolanum lycopersicume1
- Gene
- Fructose-bisphosphate aldolasee0
- Outcome
- mitigating Cd toxicitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fructose-bisphosphate aldolase is a critical component in the mechanism of the effectiveness of Si-Fe in mitigating Cd toxicity.”
e1“physiological and transcriptomic responses of tomato seedlings to Cd stress”
e2“the application of external Si and Fe”
Claim · model-written summary
CAB13 and CAB6A may modulate photorespiration and light capture after silicon and iron treatment.
- Taxon
- tomato seedlingsSolanum lycopersicume1
- Gene
- CAB13 and CAB6Ae0
- Outcome
- modulation of photorespiration and light-capture processese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The hub genes CAB13 and CAB6A could potentially play a role in the modulation of photorespiration and light-capture processes when subjected to Si-Fe treatment.”
e1“physiological and transcriptomic responses of tomato seedlings to Cd stress”
e2“the application of external Si and Fe”
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