Abstract
The properties of nanomaterials and their potential applications have been given considerable attention by researchers in various fields, especially agricultural biotechnology. However, not much has been done to evaluate the role or effect of zinc oxide nanoparticles (ZnO-NP) in regulating physiological and biochemical processes in response to salt-induced stress. For this purpose, some callus growth traits, plant regeneration rate, mineral element (sodium, potassium, phosphorous and nitrogen) contents and changes in the activity of superoxide dismutase (SOD) and glutathione peroxidase (GPX) in tissues of five tomato cultivars were investigated in a callus culture exposed to elevated concentrations of salt (3.0 and 6.0 g L-1NaCl), and in the presence of zinc oxide nanoparticles (15 and 30 mg L-1). The relative callus growth rate was inhibited by 3.0 g L-1 NaCl; this was increased dramatically at 6.0 g L-1. Increasing exposure to NaCl was associated with a significantly higher sodium content and SOD and GPX activities. Zinc oxide nanoparticles mitigated the effects of NaCl, and in this application of lower concentrations (15 mg L-1) was more effective than a higher concentration (30 mg L-1). This finding indicates that zinc oxide nanoparticles should be investigated further as a potential anti-stress agent in crop production. Different tomato cultivars showed different degrees of tolerance to salinity in the presence of ZnO-NP. The cultivars Edkawy, followed by Sandpoint, were less affected by salt stress than the cultivar Anna Aasa.
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Claims 6
Claim · model-written summary
NaCl at 3.0 g L-1 inhibited the relative callus growth rate of tomato.
- Taxon
- tomato (Solanum lycopersicum Mill.)
Solanum lycopersicumt0 - Treatment
- 3.0 g L-1 NaCle1
- Outcome
- relative callus growth ratee1
- Direction
- inhibitede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato (Solanum lycopersicum Mill.)”
e1“The relative callus growth rate was inhibited by 3.0 g L-1 NaCl; this was increased dramatically at 6.0 g L-1”
Claim · model-written summary
NaCl at 6.0 g L-1 increased the relative callus growth rate of tomato dramatically.
- Taxon
- tomato (Solanum lycopersicum Mill.)Solanum lycopersicumt0
- Treatment
- 6.0 g L-1e1
- Outcome
- relative callus growth ratee1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato (Solanum lycopersicum Mill.)”
e1“The relative callus growth rate was inhibited by 3.0 g L-1 NaCl; this was increased dramatically at 6.0 g L-1”
Claim · model-written summary
Increasing NaCl exposure was associated with a significantly higher sodium content in tomato callus.
- Taxon
- tomato (Solanum lycopersicum Mill.)Solanum lycopersicumt0
- Treatment
- Increasing exposure to NaCle2
- Outcome
- sodium contente2
- Direction
- significantly highere2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato (Solanum lycopersicum Mill.)”
e2“Increasing exposure to NaCl was associated with a significantly higher sodium content and SOD and GPX activities”
Claim · model-written summary
Increasing NaCl exposure was associated with significantly higher SOD and GPX activities in tomato callus.
- Taxon
- tomato (Solanum lycopersicum Mill.)Solanum lycopersicumt0
- Treatment
- Increasing exposure to NaCle2
- Outcome
- SOD and GPX activitiese2
- Direction
- significantly highere2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato (Solanum lycopersicum Mill.)”
e2“Increasing exposure to NaCl was associated with a significantly higher sodium content and SOD and GPX activities”
Claim · model-written summary
Zinc oxide nanoparticles at 15 mg L-1 mitigated the effects of NaCl more than 30 mg L-1 did.
- Taxon
- tomato (Solanum lycopersicum Mill.)Solanum lycopersicumt0
- Treatment
- lower concentrations (15 mg L-1)e3
- Outcome
- effects of NaCle3
- Direction
- mitigatede3
- Comparator
- higher concentration (30 mg L-1)e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato (Solanum lycopersicum Mill.)”
e3“Zinc oxide nanoparticles mitigated the effects of NaCl, and in this application of lower concentrations (15 mg L-1) was more effective than a higher concentration (30 mg L-1)”
Claim · model-written summary
Tomato cultivars Edkawy and Sandpoint were less affected by salt stress than Anna Aasa.
- Taxon
- tomatoSolanum lycopersicumt0
- Material
- Edkawye4
- Outcome
- affected by salt stresse4
- Direction
- less affectede4
- Comparator
- Anna Aasae4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato (Solanum lycopersicum Mill.)”
e4“The cultivars Edkawy, followed by Sandpoint, were less affected by salt stress than the cultivar Anna Aasa”
The same questions in other papers
sodium chloride · growth · Solanum lycopersicum (tomato)Results differ
95 papers in the same direction as this paper · 22 in the opposite direction
- negative
- positive
- positive
114 papers more in this group
See all 118 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.