Abstract
Abstract Nitric oxide (NO) plays a vital role in plant defense against various environmental stresses. However, the study on the defensive effect of NO on the phytotoxicity induced by zinc oxide nanoparticles (ZnO-NPs) remains scarce. In the present study, sodium nitroprusside (SNP, a NO donor) was used to investigate the mechanism of NO in ameliorating the ZnO-NPs toxicity in mustard (Brassica juncea (L.) Czern.) plants. The plants were treated with the different concentrations of SNP (100 µM) and ZnO-NPs (1000 and 2000 µM) either alone or in combination at 25 days after sowing (DAS) for five days consecutively. The results of our study shows that 100 µM of SNP proved highly effective in mitigating the toxicity induced by ZnO-NP. SNP significantly improve chlorophyll content that partially improve photosynthesis in ZnO-NPs stressed plants. Moreover, the defensive role of SNP in relieving the oxidative damage induced by ZnO-NPs is intimately linked to NO-induced antioxidative defense system. The spray of SNP increased the growth biomarkers as well as proline content in control as well as in ZnO-NPs-treated plants. Additionally, microscopic studies further reveal an increase in the size of stomatal aperture on SNP exposure in ZnO-NPs treated plants. Overall, this study provides the first evidence indicating the functions of SNP in alleviating the ZnO-NPs toxicity in mustard plants.
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Claims 7
Claim · model-written summary
SNP mitigated zinc oxide nanoparticle toxicity in mustard.
- Taxon
- Brassica juncea
Brassica junceat0 - Treatment
- 100 µM of SNPe0
- Outcome
- toxicity induced by ZnO-NPe0
- Direction
- mitigatinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Brassica juncea”
e0“100 µM of SNP proved highly effective in mitigating the toxicity induced by ZnO-NP”
Claim · model-written summary
SNP significantly improved chlorophyll content in ZnO-NP stressed mustard.
- Taxon
- Brassica junceaBrassica junceat0
- Treatment
- SNPe0
- Outcome
- chlorophyll contente0
- Direction
- improvee0
- Qualifier
- ZnO-NPs stressed plantse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Brassica juncea”
e0“SNP significantly improve chlorophyll content that partially improve photosynthesis in ZnO-NPs stressed plants”
Claim · model-written summary
SNP partially improved photosynthesis in ZnO-NP stressed mustard.
- Taxon
- Brassica junceaBrassica junceat0
- Treatment
- SNPe0
- Outcome
- photosynthesise0
- Direction
- improvee0
- Qualifier
- ZnO-NPs stressed plantse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Brassica juncea”
e0“SNP significantly improve chlorophyll content that partially improve photosynthesis in ZnO-NPs stressed plants”
Claim · model-written summary
SNP induced antioxidant defense associated with relief of ZnO-NP oxidative damage.
- Taxon
- Brassica junceaBrassica junceat0
- Treatment
- SNPe0
- Outcome
- oxidative damage induced by ZnO-NPse0
- Qualifier
- NO-induced antioxidative defense systeme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Brassica juncea”
e0“defensive role of SNP in relieving the oxidative damage induced by ZnO-NPs is intimately linked to NO-induced antioxidative defense system”
Claim · model-written summary
SNP spray increased growth biomarkers in control and ZnO-NP-treated mustard.
- Taxon
- Brassica junceaBrassica junceat0
- Treatment
- spray of SNPe0
- Outcome
- growth biomarkerse0
- Direction
- increasede0
- Qualifier
- control as well as in ZnO-NPs-treated plantse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Brassica juncea”
e0“The spray of SNP increased the growth biomarkers as well as proline content in control as well as in ZnO-NPs-treated plants”
Claim · model-written summary
SNP spray increased proline content in control and ZnO-NP-treated mustard.
- Taxon
- Brassica junceaBrassica junceat0
- Treatment
- spray of SNPe0
- Outcome
- proline contente0
- Direction
- increasede0
- Qualifier
- control as well as in ZnO-NPs-treated plantse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Brassica juncea”
e0“The spray of SNP increased the growth biomarkers as well as proline content in control as well as in ZnO-NPs-treated plants”
Claim · model-written summary
SNP increased stomatal aperture size in ZnO-NP-treated mustard.
- Taxon
- Brassica junceaBrassica junceat0
- Treatment
- SNP exposuree0
- Outcome
- size of stomatal aperturee0
- Direction
- increasee0
- Qualifier
- ZnO-NPs treated plantse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Brassica juncea”
e0“increase in the size of stomatal aperture on SNP exposure in ZnO-NPs treated plants”
The same questions in other papers
sodium nitroprusside · growth · Brassica juncea (Indian mustard)Results agree
1 paper in the same direction as this paper
- positive
application · growth · Brassica juncea (Indian mustard)Positive and negative results
21 papers in the same direction as this paper · 1 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- positive
20 papers more in this group
See all 24 papers →application · physiology: osmolytes · Brassica juncea (Indian mustard)Results agree
1 paper in the same direction as this paper
- 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.