Abstract
Abstract Cadmium (Cd) is detrimental to crops and the environment. This work examines the natural mechanisms underlying silicon‐ (Si‐)directed Cd detoxification in rice plants. The addition of Si to plants under Cd stress caused significant improvements in morphological parameters, chlorophyll score, F v /F m and total soluble protein concentration compared to controls, confirming that Si is able to ameliorate Cd‐induced damage in rice plants. This morpho‐physiological evidence was correlated with decreased cell death and electrolyte leakage after Si application. The results showed no critical changes in root Cd concentration, while shoot Cd decreased significantly after Si supplementation in comparison with Cd‐stressed rice. Additionally, expression of Cd transporters ( OsNRAMP5 and OsHMA2 ) was significantly down‐regulated while the concentration of phytochelatin, cysteine and glutathione, together with expression of OsPCS1 (phytochelatin synthase) in roots of Cd‐stressed rice was significantly induced when subjected to Si treatment. This confirms that the alleviation of Cd stress is not only limited to the down‐regulation of Cd transporters but also closely related to the phytochelatin‐driven vacuolar storage of Cd in rice roots. The enzymatic analysis further revealed the role of SOD and GR enzymes in protecting rice plants from Cd‐induced oxidative harm. These findings suggest a mechanistic basis in rice plants for Si‐mediated mitigation of Cd stress.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 10
Claim · model-written summary
Silicon added to rice under Cd stress significantly improved morphological parameters, chlorophyll score and Fv/Fm compared with controls.
- Taxon
- rice
Oryza sativae0 - Treatment
- addition of Sie1
- Outcome
- morphological parameters, chlorophyll score, F v /F me1
- Direction
- improvementse1
- Qualifier
- under Cd stresse1
- Comparator
- controlse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“detoxification in rice plants”
e1“The addition of Si to plants under Cd stress caused significant improvements in morphological parameters, chlorophyll score, F v /F m and total soluble protein concentration compared to controls”
Claim · model-written summary
Silicon added to rice under Cd stress significantly improved total soluble protein concentration compared with controls.
- Taxon
- riceOryza sativae0
- Treatment
- addition of Sie1
- Outcome
- total soluble protein concentratione1
- Direction
- improvementse1
- Qualifier
- under Cd stresse1
- Comparator
- controlse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“detoxification in rice plants”
e1“The addition of Si to plants under Cd stress caused significant improvements in morphological parameters, chlorophyll score, F v /F m and total soluble protein concentration compared to controls”
Claim · model-written summary
Silicon application was correlated with decreased cell death and electrolyte leakage in rice.
- Taxon
- riceOryza sativae0
- Treatment
- Si applicatione2
- Outcome
- cell death and electrolyte leakagee2
- Direction
- decreasede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“detoxification in rice plants”
e2“decreased cell death and electrolyte leakage after Si application”
Claim · model-written summary
Silicon supplementation caused no critical change in root Cd concentration of Cd-stressed rice.
- Taxon
- riceOryza sativae0
- Treatment
- Si supplementatione3
- Outcome
- root Cd concentratione3
- Direction
- no critical changese3
- Comparator
- Cd‑stressed ricee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“detoxification in rice plants”
e3“The results showed no critical changes in root Cd concentration, while shoot Cd decreased significantly after Si supplementation in comparison with Cd‑stressed rice”
Claim · model-written summary
Silicon supplementation significantly decreased shoot Cd in comparison with Cd-stressed rice.
- Taxon
- riceOryza sativae0
- Treatment
- Si supplementatione3
- Outcome
- shoot Cde3
- Direction
- decreasede3
- Comparator
- Cd‑stressed ricee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“detoxification in rice plants”
e3“The results showed no critical changes in root Cd concentration, while shoot Cd decreased significantly after Si supplementation in comparison with Cd‑stressed rice”
Claim · model-written summary
Silicon treatment significantly down-regulated expression of the Cd transporters OsNRAMP5 and OsHMA2 in rice relative to Cd-stressed rice.
- Taxon
- riceOryza sativae0
- Treatment
- Si treatmente4
- Gene
- OsNRAMP5 and OsHMA2e4
- Outcome
- expression of Cd transporterse4
- Direction
- down‑regulatede4
- Comparator
- Cd‑stressed ricee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“detoxification in rice plants”
e4“Additionally, expression of Cd transporters ( OsNRAMP5 and OsHMA2 ) was significantly down‑regulated while the concentration of phytochelatin, cysteine and glutathione, together with expression of OsPCS1 (phytochelatin synthase) in roots of Cd‑stressed rice was significantly induced when subjected to Si treatment”
Claim · model-written summary
Silicon treatment significantly induced phytochelatin, cysteine and glutathione concentrations in the roots of Cd-stressed rice.
- Taxon
- riceOryza sativae0
- Organ / stage
- rootse4
- Treatment
- Si treatmente4
- Outcome
- concentration of phytochelatin, cysteine and glutathionee4
- Direction
- inducede4
- Comparator
- Cd‑stressed ricee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“detoxification in rice plants”
e4“Additionally, expression of Cd transporters ( OsNRAMP5 and OsHMA2 ) was significantly down‑regulated while the concentration of phytochelatin, cysteine and glutathione, together with expression of OsPCS1 (phytochelatin synthase) in roots of Cd‑stressed rice was significantly induced when subjected to Si treatment”
Claim · model-written summary
Silicon treatment significantly induced expression of OsPCS1 in the roots of Cd-stressed rice.
- Taxon
- riceOryza sativae0
- Organ / stage
- rootse4
- Treatment
- Si treatmente4
- Gene
- OsPCS1e4
- Outcome
- expression of OsPCS1e4
- Direction
- inducede4
- Comparator
- Cd‑stressed ricee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“detoxification in rice plants”
e4“Additionally, expression of Cd transporters ( OsNRAMP5 and OsHMA2 ) was significantly down‑regulated while the concentration of phytochelatin, cysteine and glutathione, together with expression of OsPCS1 (phytochelatin synthase) in roots of Cd‑stressed rice was significantly induced when subjected to Si treatment”
Claim · model-written summary
Cd alleviation by silicon is closely related to phytochelatin-driven vacuolar storage of Cd in rice roots, beyond transporter down-regulation.
- Taxon
- riceOryza sativae0
- Compound
- phytochelatine5
- Outcome
- the alleviation of Cd stresse5
- Qualifier
- phytochelatin‑driven vacuolar storage of Cde5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“detoxification in rice plants”
e5“the alleviation of Cd stress is not only limited to the down‑regulation of Cd transporters but also closely related to the phytochelatin‑driven vacuolar storage of Cd in rice roots”
Claim · model-written summary
SOD and GR enzymes protect rice plants from Cd-induced oxidative harm.
- Taxon
- rice plantsOryza sativae6
- Gene
- SOD and GRe6
- Outcome
- Cd‑induced oxidative harme6
- Qualifier
- protecting rice plantse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“detoxification in rice plants”
e6“The enzymatic analysis further revealed the role of SOD and GR enzymes in protecting rice plants from Cd‑induced oxidative harm”
The same questions in other papers
silicon atom · physiology: osmolytes · Oryza sativa (rice)Results differ
17 papers in the same direction as this paper
- positive
- positive
- positive
14 papers more in this group
See all 18 papers →silicon atom · nutrient: content · Oryza sativa (rice)Results differ
163 papers in the same direction as this paper · 13 in the opposite direction
- positive
- positive
- no effect
173 papers more in this group
See all 177 papers →silicon atom · molecular: expression · Oryza sativa (rice)Positive and negative results
20 papers in the same direction as this paper · 5 in the opposite direction
- positive
- no effect
- no effect
22 papers more in this group
See all 26 papers →silicon atom · physiology: pigments · Oryza sativa (rice)Positive and negative results
35 papers in the same direction as this paper · 1 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- positive
34 papers more in this group
See all 38 papers →silicon atom · molecular: metabolites · Oryza sativa (rice)Positive and negative results
65 papers in the same direction as this paper · 9 in the opposite direction · 2 reporting no difference from an alternative
- positive
- no effect
- no effect
73 papers more in this group
See all 77 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.