Abstract
Ten days old seedlings of chickpea (Cicer arietinum L var. HC-1) were foliar sprayed with 1.5 or 10 ppm aqueous solution of zinc oxide (ZnO) nanoparticles and effects were compared with corresponding concentration of zinc sulphate and ZnO of normal size. Maximum promontory response with respect to shoot dry weight was observed in seedlings treated with 1.5 ppm ZnO nanoparticles while at 10 ppm the nanoparticles exerted adverse effects on root growth. However, overall biomass accumulation improved in the ZnO nanoparticle treated seedlings. This response may be attributed to low reactive oxygen species (ROS) levels which resulted in less lipid peroxidation as evident from lower malondialdehyde (MDA) content. This was associated with lower activity of prominent antioxidant enzymes, superoxide dismutase (SOD), and peroxidase ZnO nanoparticle treated seedling compared to control. The study indicates importance in precise application of zinc, more so in deficient system, where plant response varies with concentration and is important in understanding the mechanism of action of specific nanomaterials.
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Claims 8
Claim · model-written summary
At 1.5 ppm, ZnO nanoparticles gave the maximum promotory shoot dry weight response.
- Taxon
- chickpea
Cicer arietinumt0 - Treatment
- 1.5 ppm ZnO nanoparticlese0
- Outcome
- shoot dry weighte0
- Direction
- Maximume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea”
e0“Maximum promontory response with respect to shoot dry weight was observed in seedlings treated with 1.5 ppm ZnO nanoparticles”
Claim · model-written summary
At 10 ppm, ZnO nanoparticles adversely affected root growth.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- 10 ppm the nanoparticlese0
- Outcome
- root growthe0
- Direction
- adversee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea”
e0“at 10 ppm the nanoparticles exerted adverse effects on root growth”
Claim · model-written summary
ZnO nanoparticle treatment improved overall biomass accumulation.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- ZnO nanoparticlee0
- Outcome
- overall biomass accumulatione0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea”
e0“overall biomass accumulation improved in the ZnO nanoparticle treated seedlings”
Claim · model-written summary
The authors attributed the biomass response to low reactive oxygen species levels and less lipid peroxidation.
- Taxon
- chickpeaCicer arietinumt0
- Compound
- reactive oxygen species (ROS)e0
- Outcome
- less lipid peroxidatione0
- Qualifier
- may be attributede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea”
e0“This response may be attributed to low reactive oxygen species (ROS) levels which resulted in less lipid peroxidation as evident from lower malondialdehyde (MDA) content”
Claim · model-written summary
ZnO nanoparticle treated seedlings had lower malondialdehyde content.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- ZnO nanoparticlee1
- Outcome
- malondialdehyde (MDA) contente0
- Direction
- lowere0
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea”
e0“lower malondialdehyde (MDA) content”
e1“ZnO nanoparticle treated seedling compared to control”
Claim · model-written summary
ZnO nanoparticle treated seedlings had lower superoxide dismutase activity than controls.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- ZnO nanoparticlee0
- Gene
- superoxide dismutase (SOD)e0
- Outcome
- activity of prominent antioxidant enzymes, superoxide dismutase (SOD)e0
- Direction
- lowere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea”
e0“lower activity of prominent antioxidant enzymes, superoxide dismutase (SOD), and peroxidase ZnO nanoparticle treated seedling compared to control”
Claim · model-written summary
ZnO nanoparticle treated seedlings had lower peroxidase activity than controls.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- ZnO nanoparticlee0
- Gene
- peroxidasee0
- Outcome
- peroxidasee0
- Direction
- lowere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea”
e0“lower activity of prominent antioxidant enzymes, superoxide dismutase (SOD), and peroxidase ZnO nanoparticle treated seedling compared to control”
Claim · model-written summary
The authors recommend precise zinc application because plant responses vary with concentration.
- Taxon
- chickpeaCicer arietinumt0
- Outcome
- precise application of zince0
- Qualifier
- more so in deficient systeme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea”
e0“The study indicates importance in precise application of zinc, more so in deficient system, where plant response varies with concentration”
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