Abstract
Copper (Cu) is an essential micronutrient for plant growth and development. However, excessive Cu from diverse anthropogenic sources leads to the significant loss of crop production. On the other hand, low dose of silicon dioxide nanoparticles (SiO 2 -NPs) showed promising response to various abiotic stresses. This study was conducted to explore the response of SiO 2 -NPs in soybean plants exposed to elevated levels of Cu and uncover the efficacy of SiO 2 -NPs to alleviate the Cu induced toxicity by regulating proline metabolism and antioxidant system. A low level (25 μM) of Cu in the presence of SiO 2 -NPs (50 ppm) significantly increased growth performance, photosynthetic efficiency, and altered proline metabolism. However, higher levels (50, and 100 μM) of Cu alone showed inhibitory effects in concentration dependent manner through increased oxidative stress (electrolyte leakage, H 2 O 2 content, and lipid peroxidation). The follow-up application of SiO 2 -NPs to the Cu-stressed plants improved growth, water relations, photosynthesis, decreased leaf Cu accumulation and simultaneously enhanced the various antioxidant enzymes viz. catalase, peroxidase and superoxide dismutase with the improved RuBisCO activity and excess proline accumulation along with altered ProDH and P5CS activities. These findings suggested that SiO 2 -NPs played a dual role through improved growth and photosynthetic performance of soybean plants in the presence of low dose of Cu and concurrently provide resilience to the soybean plants under higher concentrations of Cu through altered proline metabolism and elevated levels of antioxidant enzymes and proline accumulation resulting in improved growth, water relations and photosynthesis. • Elevated Cu levels in the soil adversely impact the growth and physiological performance of soybean plants. • SiO 2 -NPs were selected to counteract Cu toxicity, leveraging their capacity to interact with heavy metals. • SiO 2 -NPs enhance enzymatic antioxidant activity in soybean plants, decrease total Cu accumulation, and lower oxidative damage. • SiO 2 -NPs efficiently improve physiological performace and modify proline metabolism of soybean plants under Cu stress.
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Claims 9
Claim · model-written summary
At 25 μM copper, 50 ppm silicon dioxide nanoparticles increased soybean growth performance and photosynthetic efficiency and altered proline metabolism.
- Taxon
- soybean plants
Glycine maxt0 - Treatment
- SiO 2 -NPs (50 ppm)e0
- Outcome
- growth performance, photosynthetic efficiency, and altered proline metabolisme0
- Direction
- increasede0
- Qualifier
- 25 μMe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A low level (25 μM) of Cu in the presence of SiO 2 -NPs (50 ppm) significantly increased growth performance, photosynthetic efficiency, and altered proline metabolism.”
t0“Unveiling the protective role of silicon dioxide nanoparticles against copper-induced oxidative damage in soybean plants through altered proline metabolism and antioxidants”
Claim · model-written summary
Copper at 50 and 100 μM inhibited soybean performance in a concentration-dependent manner.
- Taxon
- soybean plantsGlycine maxt0
- Treatment
- 50, and 100 μMe0
- Outcome
- inhibitory effectse0
- Direction
- inhibitorye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher levels (50, and 100 μM) of Cu alone showed inhibitory effects in concentration dependent manner”
t0“Unveiling the protective role of silicon dioxide nanoparticles against copper-induced oxidative damage in soybean plants through altered proline metabolism and antioxidants”
Claim · model-written summary
Higher copper levels increased electrolyte leakage, hydrogen peroxide content, and lipid peroxidation.
- Taxon
- soybean plantsGlycine maxt0
- Treatment
- 50, and 100 μMe0
- Outcome
- electrolyte leakage, H 2 O 2 content, and lipid peroxidatione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher levels (50, and 100 μM) of Cu alone showed inhibitory effects in concentration dependent manner through increased oxidative stress (electrolyte leakage, H 2 O 2 content, and lipid peroxidation).”
t0“Unveiling the protective role of silicon dioxide nanoparticles against copper-induced oxidative damage in soybean plants through altered proline metabolism and antioxidants”
Claim · model-written summary
Nanoparticles improved soybean growth, water relations and photosynthesis under copper stress.
- Taxon
- soybean plantsGlycine maxt0
- Treatment
- SiO 2 -NPse0
- Outcome
- growth, water relations, photosynthesise0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The follow-up application of SiO 2 -NPs to the Cu-stressed plants improved growth, water relations, photosynthesis”
t0“Unveiling the protective role of silicon dioxide nanoparticles against copper-induced oxidative damage in soybean plants through altered proline metabolism and antioxidants”
Claim · model-written summary
Nanoparticles decreased leaf copper accumulation under copper stress.
- Taxon
- soybean plantsGlycine maxt0
- Treatment
- SiO 2 -NPse0
- Outcome
- leaf Cu accumulatione0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The follow-up application of SiO 2 -NPs to the Cu-stressed plants improved growth, water relations, photosynthesis, decreased leaf Cu accumulation”
t0“Unveiling the protective role of silicon dioxide nanoparticles against copper-induced oxidative damage in soybean plants through altered proline metabolism and antioxidants”
Claim · model-written summary
Nanoparticles enhanced catalase, peroxidase and superoxide dismutase activity under copper stress.
- Taxon
- soybean plantsGlycine maxt0
- Treatment
- SiO 2 -NPse1
- Gene
- catalase, peroxidase and superoxide dismutasee0
- Outcome
- various antioxidant enzymese0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“enhanced the various antioxidant enzymes viz. catalase, peroxidase and superoxide dismutase”
t0“Unveiling the protective role of silicon dioxide nanoparticles against copper-induced oxidative damage in soybean plants through altered proline metabolism and antioxidants”
e1“The follow-up application of SiO 2 -NPs”
Claim · model-written summary
Nanoparticles improved RuBisCO activity under copper stress.
- Taxon
- soybean plantsGlycine maxt0
- Treatment
- SiO 2 -NPse1
- Gene
- RuBisCOe0
- Outcome
- RuBisCO activitye0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with the improved RuBisCO activity”
t0“Unveiling the protective role of silicon dioxide nanoparticles against copper-induced oxidative damage in soybean plants through altered proline metabolism and antioxidants”
e1“The follow-up application of SiO 2 -NPs”
Claim · model-written summary
Nanoparticles increased proline accumulation under copper stress.
- Taxon
- soybean plantsGlycine maxt0
- Treatment
- SiO 2 -NPse1
- Outcome
- proline accumulatione0
- Direction
- excesse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“excess proline accumulation along with altered ProDH and P5CS activities”
t0“Unveiling the protective role of silicon dioxide nanoparticles against copper-induced oxidative damage in soybean plants through altered proline metabolism and antioxidants”
e1“The follow-up application of SiO 2 -NPs”
Claim · model-written summary
Nanoparticles altered ProDH and P5CS activities under copper stress.
- Taxon
- soybean plantsGlycine maxt0
- Treatment
- SiO 2 -NPse1
- Gene
- ProDH and P5CSe0
- Outcome
- ProDH and P5CS activitiese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“altered ProDH and P5CS activities”
t0“Unveiling the protective role of silicon dioxide nanoparticles against copper-induced oxidative damage in soybean plants through altered proline metabolism and antioxidants”
e1“The follow-up application of SiO 2 -NPs”
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silicon dioxide · physiology: antioxidant enzymes · Glycine max (soybean)Results agree
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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.