Abstract
Abstract Nanotechnology is an emerging tool which has the potential to stimulate photosynthetic process in stress related environment. Unfortunately, the role of nanotechnology on photosynthetic performance explaining photosystem II functionality and specific energy fluxes in crop plants are rather scarce. Photosystem II contributes 90% of the energy requirement in plants, therefore its participation in a sub-optimal environment cannot be ruled out. The current study not only elucidates the role of Zinc-NP on light harvesting efficiency of photosystem II and specific energy fluxes but also explains their subsequent involvement in physiological tolerance against salt stress in saline soil. Oryza sativa L. rice var. Diamond and Triticum aestivum L.wheat var. Benazir seeds were sown in plastic pots and were allowed to grow in natural condition. Fifteen-day-old plants were exposed to ZnO-NP at 0.02 g/L with or without salt stress (0, 75, and 150 mM) NaCl concentration. Application of nanoparticles in saline environment showed 22 to 36% increase in rice and 9 to 25% in wheat growth. Biomass accumulations and relative water content (RWC) were also increased from 10 and 111% in a suboptimal condition. Moreover, nanoparticles reduced the oxidative damages in both rice and wheat plants indicating –20.2 to –58.3% and −28.7 to –20.2% reduction in the MDA and H2O2 production under moderate to severe salt stress. Maximum quantum yield (Fv/Fm) was less affected in severe and moderate salt stress indicating –7 and –5.4% decrease in stress condition. Foliar application of ZnO-NP improves the size and number of active reaction centre of photosynthetic machinery (Fv/Fo) and performance index (PIabs) in saline soil. It was concluded that Zn-NP not only sustained light harvesting potential in both cereal plants under salinized soil but also increases the biomass accumulation and reduces oxidative damage in a sub-optimal environment.
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Claims 9
Claim · model-written summary
Nanoparticles increased rice growth by 22 to 36% in saline conditions.
- Taxon
- Oryza sativa L.
Oryza sativae1 - Material
- Diamonde1
- Treatment
- nanoparticlese0
- Outcome
- growthe0
- Direction
- increasee0
- Value
- 22 to 36%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of nanoparticles in saline environment showed 22 to 36% increase in rice and 9 to 25% in wheat growth”
e1“Oryza sativa L. rice var. Diamond”
Claim · model-written summary
Nanoparticles increased wheat growth by 9 to 25% in saline conditions.
- Taxon
- Triticum aestivum L.
Triticum aestivume1 - Material
- Benazire1
- Treatment
- nanoparticlese0
- Outcome
- wheat growthe0
- Direction
- increasee0
- Value
- 9 to 25%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of nanoparticles in saline environment showed 22 to 36% increase in rice and 9 to 25% in wheat growth”
e1“Triticum aestivum L.wheat var. Benazir”
Claim · model-written summary
Nanoparticles increased biomass accumulation under suboptimal conditions.
- Taxon
- rice and wheatOryza sativaTriticum aestivume1
- Treatment
- nanoparticlese1
- Outcome
- Biomass accumulationse0
- Direction
- increasede0
- Value
- 10e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Biomass accumulations and relative water content (RWC) were also increased from 10 and 111% in a suboptimal condition”
e1“nanoparticles reduced the oxidative damages in both rice and wheat plants”
Claim · model-written summary
Nanoparticles increased relative water content under suboptimal conditions.
- Taxon
- rice and wheatOryza sativaTriticum aestivume1
- Treatment
- nanoparticlese1
- Outcome
- relative water content (RWC)e0
- Direction
- increasede0
- Value
- 111%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Biomass accumulations and relative water content (RWC) were also increased from 10 and 111% in a suboptimal condition”
e1“nanoparticles reduced the oxidative damages in both rice and wheat plants”
Claim · model-written summary
Nanoparticles reduced MDA production in rice and wheat under moderate to severe salinity.
- Taxon
- rice and wheatOryza sativaTriticum aestivume0
- Treatment
- nanoparticlese0
- Outcome
- MDAe0
- Direction
- reductione0
- Value
- –20.2 to –58.3%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nanoparticles reduced the oxidative damages in both rice and wheat plants indicating –20.2 to –58.3% and −28.7 to –20.2% reduction in the MDA and H2O2 production under moderate to severe salt stress”
Claim · model-written summary
Nanoparticles reduced H2O2 production in rice and wheat under moderate to severe salinity.
- Taxon
- rice and wheatOryza sativaTriticum aestivume0
- Treatment
- nanoparticlese0
- Outcome
- H2O2 productione0
- Direction
- reductione0
- Value
- −28.7 to –20.2%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nanoparticles reduced the oxidative damages in both rice and wheat plants indicating –20.2 to –58.3% and −28.7 to –20.2% reduction in the MDA and H2O2 production under moderate to severe salt stress”
Claim · model-written summary
Maximum quantum yield decreased 7% in severe salt stress.
- Taxon
- rice and wheatOryza sativaTriticum aestivume1
- Outcome
- Maximum quantum yield (Fv/Fm)e0
- Direction
- decreasee0
- Value
- –7e0
- Qualifier
- severee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maximum quantum yield (Fv/Fm) was less affected in severe and moderate salt stress indicating –7 and –5.4% decrease in stress condition”
e1“both rice and wheat plants”
Claim · model-written summary
Maximum quantum yield decreased 5.4% in moderate salt stress.
- Taxon
- rice and wheatOryza sativaTriticum aestivume1
- Outcome
- Maximum quantum yield (Fv/Fm)e0
- Direction
- decreasee0
- Value
- –5.4%e0
- Qualifier
- moderate salt stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maximum quantum yield (Fv/Fm) was less affected in severe and moderate salt stress indicating –7 and –5.4% decrease in stress condition”
e1“both rice and wheat plants”
Claim · model-written summary
Foliar ZnO nanoparticles improved active reaction centre size and number, Fv/Fo and PIabs in saline soil.
- Taxon
- rice and wheatOryza sativaTriticum aestivume1
- Treatment
- Foliar application of ZnO-NPe0
- Outcome
- size and number of active reaction centre of photosynthetic machinery (Fv/Fo) and performance index (PIabs)e0
- Direction
- improvese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar application of ZnO-NP improves the size and number of active reaction centre of photosynthetic machinery (Fv/Fo) and performance index (PIabs) in saline soil”
e1“both rice and wheat plants”
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See all 72 papers →8 of 12 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.