Abstract
Silver nanoparticles (AgNPs) have been implicated to enhance seed germination and plant growth, improve photosynthetic quantum efficiency and act as antimicrobial agents to manage plant diseases. The role of nanoparticles in the improvement of plant tolerance to environmental stresses such as drought and salinity remains unclear. In this study, we examined the effects of AgNP dose on the salt tolerance of tomato (Solanum lycopersicum L.) plants during germination. Tomato seeds were treated with different AgNP doses and germinated under salinity stress. Five concentrations of AgNPs (0.05, 0.5, 1.5, 2 and 2.5 mg L -1 ) and two levels of NaCl (150 and 100 mM) were tested. Seed germination and seedling growth of tomato plants were markedly inhibited by salt stress, and this effect was alleviated by exposure to AgNPs. The germination percentage, germination rate, root length and seedling fresh and dry weight of tomato were improved after exposure to AgNPs under NaCl stress. The expression of salt stress genes was investigated by semi-quantitative RT-PCR. Of the examined salt stress genes, four genes, AREB, MAPK2, P5CS and CRK1, were up-regulated by AgNPs under salt stress, and three genes, TAS14, DDF2 and ZFHD1, were down-regulated in response to AgNPs. The gene expression patterns associated with AgNP exposure also suggest the potential involvement of AgNPs in response to stress, indicating that they might be useful for improving plant tolerance to salinity.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 8
Claim · model-written summary
Salt stress inhibited tomato seed germination and seedling growth.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- salt stresse0
- Outcome
- Seed germination and seedling growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed germination and seedling growth of tomato plants were markedly inhibited by salt stress”
Claim · model-written summary
AgNP exposure alleviated salt stress inhibition of tomato seed germination and seedling growth.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- exposure to AgNPse0
- Outcome
- Seed germination and seedling growthe0
- Direction
- alleviatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed germination and seedling growth of tomato plants were markedly inhibited by salt stress, and this effect was alleviated by exposure to AgNPs”
Claim · model-written summary
AgNP exposure improved tomato germination percentage and rate under NaCl stress.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- exposure to AgNPse0
- Outcome
- germination percentage, germination ratee0
- Direction
- improvede0
- Qualifier
- under NaCl stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The germination percentage, germination rate, root length and seedling fresh and dry weight of tomato were improved after exposure to AgNPs under NaCl stress”
Claim · model-written summary
AgNP exposure improved tomato root length and seedling fresh and dry weight under NaCl stress.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- exposure to AgNPse0
- Outcome
- root length and seedling fresh and dry weighte0
- Direction
- improvede0
- Qualifier
- under NaCl stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The germination percentage, germination rate, root length and seedling fresh and dry weight of tomato were improved after exposure to AgNPs under NaCl stress”
Claim · model-written summary
AgNPs up-regulated AREB, MAPK2 and P5CS under salt stress.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- AgNPse0
- Gene
- AREB, MAPK2, P5CSe0
- Outcome
- up-regulatede0
- Direction
- up-regulatede0
- Qualifier
- under salt stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“four genes, AREB, MAPK2, P5CS and CRK1, were up-regulated by AgNPs under salt stress”
t0“Tomato (Solanum lycopersicum)”
Claim · model-written summary
AgNPs up-regulated CRK1 under salt stress.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- AgNPse0
- Gene
- CRK1e0
- Outcome
- up-regulatede0
- Direction
- up-regulatede0
- Qualifier
- under salt stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“four genes, AREB, MAPK2, P5CS and CRK1, were up-regulated by AgNPs under salt stress”
t0“Tomato (Solanum lycopersicum)”
Claim · model-written summary
AgNPs down-regulated TAS14, DDF2 and ZFHD1.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- AgNPse0
- Gene
- TAS14, DDF2 and ZFHD1e0
- Outcome
- down-regulatede0
- Direction
- down-regulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three genes, TAS14, DDF2 and ZFHD1, were down-regulated in response to AgNPs”
t0“Tomato (Solanum lycopersicum)”
Claim · model-written summary
The gene expression patterns suggest AgNPs might improve tomato salt tolerance.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- AgNP exposuree0
- Outcome
- plant tolerance to salinitye0
- Qualifier
- might be usefule0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The gene expression patterns associated with AgNP exposure also suggest the potential involvement of AgNPs in response to stress, indicating that they might be useful for improving plant tolerance to salinity”
t0“Tomato (Solanum lycopersicum)”
The same questions in other papers
silver nanoparticle · growth · Solanum lycopersicum (tomato)Results differ
11 papers in the same direction as this paper · 2 in the opposite direction
- negative
- no effect
- positive
10 papers more in this group
See all 14 papers →salinity · growth · Solanum lycopersicum (tomato)Positive and negative results
260 papers in the same direction as this paper · 39 in the opposite direction
- positive
- positive
- positive
296 papers more in this group
See all 300 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.