Abstract
Accumulation of arsenic (As) in soils is increasing consistently day-by-day, which has resulted in increased toxicity of this element in various crop plants. Arsenic interferes with several plant metabolic processes at molecular, biochemical and physiological levels, which result in reduced plant productivity. Hence, the introduction of novel ameliorating agents to combat this situation is the need of the hour. The present study was designed to examine the effect of zinc oxide nanoparticles (ZnO-NPs) in As-stressed soybean plants. Various plant growth factors and enzymes were studied at varying concentrations of As and ZnO-NPs. Our results showed that with the application of ZnO-NPs, As concentration declined in both root and shoot of soybean plants. The lengths of shoot and root, net photosynthetic rate, transpiration, stomatal conductance, photochemical yield and other factors declined with an increase in external As level. However, the application of ZnO-NPs to the As-stressed soybean plants resulted in a considerable increase in these factors. Moreover, the enzymes involved in the ascorbate-glutathione cycle including superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX) and glutathione reductase (GR) showed a significant increase in their activity with the application of ZnO-NPs to the As-stressed plants. Hence, our study confirms the significance of ZnO-NPs in alleviating the toxicity of As in soybean plants.
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Claims 5
Claim · model-written summary
ZnO-NPs application declined arsenic concentration in both root and shoot of soybean
- Taxon
- soybean
Glycine maxe1 - Organ / stage
- root and shoote1
- Treatment
- application of ZnO-NPse1
- Outcome
- As concentratione1
- Direction
- declinede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean Plants”
e1“with the application of ZnO-NPs, As concentration declined in both root and shoot of soybean plants”
Claim · model-written summary
ZnO-NPs increased shoot and root lengths and net photosynthetic rate in As-stressed soybean
- Taxon
- soybeanGlycine maxe2
- Treatment
- application of ZnO-NPse2
- Outcome
- lengths of shoot and root, net photosynthetic ratee2
- Direction
- considerable increasee2
- Comparator
- As-stressede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean Plants”
e2“The lengths of shoot and root, net photosynthetic rate, transpiration, stomatal conductance, photochemical yield and other factors declined with an increase in external As level. However, the application of ZnO-NPs to the As-stressed soybean plants resulted in a considerable increase in these factors”
Claim · model-written summary
ZnO-NPs increased transpiration, stomatal conductance and photochemical yield in As-stressed soybean
- Taxon
- soybeanGlycine maxe2
- Treatment
- application of ZnO-NPse2
- Outcome
- transpiration, stomatal conductance, photochemical yielde2
- Direction
- considerable increasee2
- Comparator
- As-stressede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean Plants”
e2“The lengths of shoot and root, net photosynthetic rate, transpiration, stomatal conductance, photochemical yield and other factors declined with an increase in external As level. However, the application of ZnO-NPs to the As-stressed soybean plants resulted in a considerable increase in these factors”
Claim · model-written summary
ZnO-NPs significantly increased the activity of SOD, CAT and APX in As-stressed soybean
- Taxon
- soybeanGlycine maxt0
- Treatment
- application of ZnO-NPse3
- Gene
- superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX)e3
- Outcome
- activitye3
- Direction
- significant increasee3
- Comparator
- As-stressede3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean Plants”
e3“the enzymes involved in the ascorbate-glutathione cycle including superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX) and glutathione reductase (GR) showed a significant increase in their activity with the application of ZnO-NPs to the As-stressed plants”
Claim · model-written summary
ZnO-NPs significantly increased glutathione reductase (GR) activity in As-stressed soybean
- Taxon
- soybeanGlycine maxt0
- Treatment
- application of ZnO-NPse3
- Gene
- glutathione reductase (GR)e3
- Outcome
- activitye3
- Direction
- significant increasee3
- Comparator
- As-stressede3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean Plants”
e3“the enzymes involved in the ascorbate-glutathione cycle including superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX) and glutathione reductase (GR) showed a significant increase in their activity with the application of ZnO-NPs to the As-stressed plants”
The same questions in other papers
zinc oxide · nutrient: content · Glycine max (soybean)Positive and negative results
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- positive
- no effect
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See all 9 papers →zinc oxide nanoparticle · nutrient: content · Glycine max (soybean)Results agree
1 paper in the same direction as this paper
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zinc oxide · physiology: photosynthesis · Glycine max (soybean)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
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See all 5 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.