Abstract
Drought is among the most damaging climatic hazards affecting crop productivity and nutritional quality. Here, we investigated the influence of Cu-based materials at mitigating drought stress in soybeans ( Glycine max ) during the reproductive stage in order to elucidate effects on productivity. Commercial copper oxide (CuO) nanoparticles (NPs), in-house synthesized copper sulfide (CuS) NPs, and copper sulfate (CuSO 4 ) were foliar applied at 10 mg Cu/L daily for 1 week to soybean that were exposed to water deficit at the onset of flowering, and plants were harvested 5 days after exposure. Drought inhibited flower production by 27% compared to the nondrought treatment. Notably, both CuS NPs and ionic Cu mitigated the drought-induced inhibition of flower production, showing 41.7 and 33.3% improvement. CuS NPs exhibited the most positive impact on restoring shoot biomass, pod biomass, and shoot moisture content, increasing values by 53, 96, and 10%, respectively, compared to the drought control plants. The Cu-based materials maintained photosynthetic parameters under drought conditions and modulated oxidative damage by enhancing reactive oxygen species-scavenging enzyme activities. Furthermore, CuO NP treatment increased shoot and pod Cu levels by 624 and 54%, respectively, compared to the drought control plants. Taken together, these findings suggest that Cu-based materials modulate plant protective mechanisms against drought stress during the flowering stage, offering a potentially important nanoenabled strategy to promote biofortified climate resilient crops.
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 11
Claim · model-written summary
Drought inhibited soybean flower production by 27% compared with the nondrought treatment.
- Taxon
- Soybean
Glycine maxt0 - Treatment
- Droughte0
- Outcome
- flower productione0
- Direction
- inhibitede0
- Value
- 27%e0
- Comparator
- nondrought treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought inhibited flower production by 27% compared to the nondrought treatment”
t0“Soybean”
Claim · model-written summary
CuS NPs mitigated the drought-induced inhibition of soybean flower production, with a 41.7% improvement.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- CuS NPse0
- Outcome
- drought-induced inhibition of flower productione0
- Direction
- mitigatede0
- Value
- 41.7e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both CuS NPs and ionic Cu mitigated the drought-induced inhibition of flower production, showing 41.7 and 33.3% improvement”
t0“Soybean”
Claim · model-written summary
Ionic Cu mitigated the drought-induced inhibition of soybean flower production, with a 33.3% improvement.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- ionic Cue0
- Outcome
- drought-induced inhibition of flower productione0
- Direction
- mitigatede0
- Value
- 33.3%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both CuS NPs and ionic Cu mitigated the drought-induced inhibition of flower production, showing 41.7 and 33.3% improvement”
t0“Soybean”
Claim · model-written summary
CuS NPs increased soybean shoot biomass by 53% compared with drought control plants.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- CuS NPse0
- Outcome
- shoot biomasse0
- Direction
- increasinge0
- Value
- 53e0
- Comparator
- drought control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CuS NPs exhibited the most positive impact on restoring shoot biomass, pod biomass, and shoot moisture content, increasing values by 53, 96, and 10%, respectively, compared to the drought control plants”
t0“Soybean”
Claim · model-written summary
CuS NPs increased soybean pod biomass by 96% compared with drought control plants.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- CuS NPse0
- Outcome
- pod biomasse0
- Direction
- increasinge0
- Value
- 96e0
- Comparator
- drought control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CuS NPs exhibited the most positive impact on restoring shoot biomass, pod biomass, and shoot moisture content, increasing values by 53, 96, and 10%, respectively, compared to the drought control plants”
t0“Soybean”
Claim · model-written summary
CuS NPs increased soybean shoot moisture content by 10% compared with drought control plants.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- CuS NPse0
- Outcome
- shoot moisture contente0
- Direction
- increasinge0
- Value
- 10%e0
- Comparator
- drought control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CuS NPs exhibited the most positive impact on restoring shoot biomass, pod biomass, and shoot moisture content, increasing values by 53, 96, and 10%, respectively, compared to the drought control plants”
t0“Soybean”
Claim · model-written summary
Cu-based materials maintained photosynthetic parameters in soybean under drought.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Cu-based materialse0
- Outcome
- photosynthetic parameterse0
- Direction
- maintainede0
- Qualifier
- under drought conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Cu-based materials maintained photosynthetic parameters under drought conditions”
t0“Soybean”
Claim · model-written summary
Cu-based materials modulated oxidative damage in soybean by enhancing reactive oxygen species-scavenging enzyme activities.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Cu-based materialse1
- Outcome
- reactive oxygen species-scavenging enzyme activitiese0
- Direction
- enhancinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“modulated oxidative damage by enhancing reactive oxygen species-scavenging enzyme activities”
e1“The Cu-based materials maintained photosynthetic parameters”
t0“Soybean”
Claim · model-written summary
CuO NP treatment increased soybean shoot Cu levels by 624% compared with drought control plants.
- Taxon
- SoybeanGlycine maxt0
- Organ / stage
- shoote0
- Treatment
- CuO NP treatmente0
- Outcome
- Cu levelse0
- Direction
- increasede0
- Value
- 624e0
- Comparator
- drought control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CuO NP treatment increased shoot and pod Cu levels by 624 and 54%, respectively, compared to the drought control plants”
t0“Soybean”
Claim · model-written summary
CuO NP treatment increased soybean pod Cu levels by 54% compared with drought control plants.
- Taxon
- SoybeanGlycine maxt0
- Organ / stage
- pode0
- Treatment
- CuO NP treatmente0
- Outcome
- Cu levelse0
- Direction
- increasede0
- Value
- 54%e0
- Comparator
- drought control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CuO NP treatment increased shoot and pod Cu levels by 624 and 54%, respectively, compared to the drought control plants”
t0“Soybean”
Claim · model-written summary
The authors conclude that Cu-based materials modulate plant protective mechanisms against drought stress during the flowering stage.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Cu-based materialse0
- Outcome
- plant protective mechanismse0
- Qualifier
- against drought stress during the flowering stagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cu-based materials modulate plant protective mechanisms against drought stress during the flowering stage”
t0“Soybean”
The same questions in other papers
copper atom · disease · Glycine max (soybean)Positive and negative results
2 papers in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
1 paper more in this group
See all 5 papers →nanoparticle · disease · Glycine max (soybean)Positive and negative results
8 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- no effect
- negative
8 papers more in this group
See all 12 papers →nanoparticle · nutrient: content · Glycine max (soybean)Positive and negative results
25 papers in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- no effect
25 papers more in this group
See all 29 papers →nanoparticle · growth · Glycine max (soybean)Positive and negative results
73 papers in the same direction as this paper · 8 in the opposite direction
- positive
- positive
- negative
78 papers more in this group
See all 82 papers →drought · yield · Glycine max (soybean)Positive and negative results
178 papers in the same direction as this paper · 35 in the opposite direction
- negative
- positive
- positive
210 papers more in this group
See all 214 papers →nanoparticle · quality: grain · Glycine max (soybean)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.