Abstract
Abstract The present study was conducted to evaluate the contribution of nitric oxide (NO) to the priming effects on seed germination, seedling vigour and low-temperature tolerance of two tomato cultivars ( Solanum lycopersicum , cv. Cherry and Falcato) under four different constant temperatures (10, 15, 20 and 25°C). Treatments included priming in a polyethylene glycol 6000 (PEG 6000) solution (osmopriming) or presoaking in sodium nitroprusside (SNP) solution, a donor of NO, for 24 h at 25°C. Suboptimal temperatures reduced seed germination and subsequent seedling growth, as well as amylase activity, in both cultivars, but Falcato was more sensitive to low temperature than Cherry. Both osmopriming and SNP treatments enhanced germination capacity, germination index, seedling root and shoot length, α- and β-amylase activities and sugar content under suboptimal temperatures, especially in Falcato. We observed similarities between the modes of action of the two priming treatments. Both treatments increased seed NO content, whereas their positive effects on germination and subsequent seedling growth under low-temperature stress was reversed by the addition of methylene blue (MB), a scavenger of NO. This is the first report that suggests that positive effects of priming are most likely mediated through NO signalling.
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Claims 12
Claim · model-written summary
Suboptimal temperatures reduced seed germination in tomato.
- Taxon
- Solanum lycopersicum
Solanum lycopersicume0 - Treatment
- Suboptimal temperaturese1
- Outcome
- seed germinatione1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two tomato cultivars ( Solanum lycopersicum , cv. Cherry and Falcato)”
e1“Suboptimal temperatures reduced seed germination”
Claim · model-written summary
Falcato was more sensitive to low temperature than Cherry.
- Taxon
- Solanum lycopersicumSolanum lycopersicume0
- Material
- Falcatoe2
- Outcome
- sensitive to low temperaturee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two tomato cultivars ( Solanum lycopersicum , cv. Cherry and Falcato)”
e2“Falcato was more sensitive to low temperature than Cherry”
Claim · model-written summary
Osmopriming enhanced germination capacity and germination index under suboptimal temperatures.
- Taxon
- Solanum lycopersicumSolanum lycopersicume0
- Treatment
- osmopriminge4
- Outcome
- germination capacity, germination indexe3
- Direction
- enhancede3
- Qualifier
- under suboptimal temperatures, especially in Falcatoe3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two tomato cultivars ( Solanum lycopersicum , cv. Cherry and Falcato)”
e3“Both osmopriming and SNP treatments enhanced germination capacity, germination index, seedling root and shoot length, α- and β-amylase activities and sugar content under suboptimal temperatures, especially in Falcato”
e4“Treatments included priming in a polyethylene glycol 6000 (PEG 6000) solution (osmopriming) or presoaking in sodium nitroprusside (SNP) solution”
Claim · model-written summary
Osmopriming enhanced seedling root and shoot length under suboptimal temperatures.
- Taxon
- Solanum lycopersicumSolanum lycopersicume0
- Treatment
- osmopriminge4
- Outcome
- seedling root and shoot lengthe3
- Direction
- enhancede3
- Qualifier
- under suboptimal temperatures, especially in Falcatoe3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two tomato cultivars ( Solanum lycopersicum , cv. Cherry and Falcato)”
e3“Both osmopriming and SNP treatments enhanced germination capacity, germination index, seedling root and shoot length, α- and β-amylase activities and sugar content under suboptimal temperatures, especially in Falcato”
e4“Treatments included priming in a polyethylene glycol 6000 (PEG 6000) solution (osmopriming) or presoaking in sodium nitroprusside (SNP) solution”
Claim · model-written summary
Osmopriming enhanced α- and β-amylase activities and sugar content under suboptimal temperatures.
- Taxon
- Solanum lycopersicumSolanum lycopersicume0
- Treatment
- osmopriminge4
- Outcome
- α- and β-amylase activities and sugar contente3
- Direction
- enhancede3
- Qualifier
- under suboptimal temperatures, especially in Falcatoe3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two tomato cultivars ( Solanum lycopersicum , cv. Cherry and Falcato)”
e3“Both osmopriming and SNP treatments enhanced germination capacity, germination index, seedling root and shoot length, α- and β-amylase activities and sugar content under suboptimal temperatures, especially in Falcato”
e4“Treatments included priming in a polyethylene glycol 6000 (PEG 6000) solution (osmopriming) or presoaking in sodium nitroprusside (SNP) solution”
Claim · model-written summary
SNP presoaking enhanced germination capacity and germination index under suboptimal temperatures.
- Taxon
- Solanum lycopersicumSolanum lycopersicume0
- Treatment
- sodium nitroprusside (SNP) solutione4
- Outcome
- germination capacity, germination indexe3
- Direction
- enhancede3
- Qualifier
- under suboptimal temperatures, especially in Falcatoe3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two tomato cultivars ( Solanum lycopersicum , cv. Cherry and Falcato)”
e3“Both osmopriming and SNP treatments enhanced germination capacity, germination index, seedling root and shoot length, α- and β-amylase activities and sugar content under suboptimal temperatures, especially in Falcato”
e4“Treatments included priming in a polyethylene glycol 6000 (PEG 6000) solution (osmopriming) or presoaking in sodium nitroprusside (SNP) solution”
Claim · model-written summary
SNP presoaking enhanced seedling root and shoot length under suboptimal temperatures.
- Taxon
- Solanum lycopersicumSolanum lycopersicume0
- Treatment
- sodium nitroprusside (SNP) solutione4
- Outcome
- seedling root and shoot lengthe3
- Direction
- enhancede3
- Qualifier
- under suboptimal temperatures, especially in Falcatoe3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two tomato cultivars ( Solanum lycopersicum , cv. Cherry and Falcato)”
e3“Both osmopriming and SNP treatments enhanced germination capacity, germination index, seedling root and shoot length, α- and β-amylase activities and sugar content under suboptimal temperatures, especially in Falcato”
e4“Treatments included priming in a polyethylene glycol 6000 (PEG 6000) solution (osmopriming) or presoaking in sodium nitroprusside (SNP) solution”
Claim · model-written summary
SNP presoaking enhanced α- and β-amylase activities and sugar content under suboptimal temperatures.
- Taxon
- Solanum lycopersicumSolanum lycopersicume0
- Treatment
- sodium nitroprusside (SNP) solutione4
- Outcome
- α- and β-amylase activities and sugar contente3
- Direction
- enhancede3
- Qualifier
- under suboptimal temperatures, especially in Falcatoe3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two tomato cultivars ( Solanum lycopersicum , cv. Cherry and Falcato)”
e3“Both osmopriming and SNP treatments enhanced germination capacity, germination index, seedling root and shoot length, α- and β-amylase activities and sugar content under suboptimal temperatures, especially in Falcato”
e4“Treatments included priming in a polyethylene glycol 6000 (PEG 6000) solution (osmopriming) or presoaking in sodium nitroprusside (SNP) solution”
Claim · model-written summary
Osmopriming increased seed NO content.
- Taxon
- Solanum lycopersicumSolanum lycopersicume0
- Treatment
- osmopriminge4
- Outcome
- seed NO contente5
- Direction
- increasede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two tomato cultivars ( Solanum lycopersicum , cv. Cherry and Falcato)”
e4“Treatments included priming in a polyethylene glycol 6000 (PEG 6000) solution (osmopriming) or presoaking in sodium nitroprusside (SNP) solution”
e5“Both treatments increased seed NO content”
Claim · model-written summary
SNP presoaking increased seed NO content.
- Taxon
- Solanum lycopersicumSolanum lycopersicume0
- Treatment
- sodium nitroprusside (SNP) solutione4
- Outcome
- seed NO contente5
- Direction
- increasede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two tomato cultivars ( Solanum lycopersicum , cv. Cherry and Falcato)”
e4“Treatments included priming in a polyethylene glycol 6000 (PEG 6000) solution (osmopriming) or presoaking in sodium nitroprusside (SNP) solution”
e5“Both treatments increased seed NO content”
Claim · model-written summary
Adding the NO scavenger methylene blue reversed the positive effects of priming on germination and seedling growth under low temperature.
- Taxon
- Solanum lycopersicumSolanum lycopersicume0
- Treatment
- methylene blue (MB)e6
- Compound
- NOe6
- Outcome
- positive effects on germination and subsequent seedling growthe6
- Direction
- reversede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two tomato cultivars ( Solanum lycopersicum , cv. Cherry and Falcato)”
e6“whereas their positive effects on germination and subsequent seedling growth under low-temperature stress was reversed by the addition of methylene blue (MB), a scavenger of NO”
Claim · model-written summary
Positive effects of priming are most likely mediated through NO signalling in tomato.
- Taxon
- Solanum lycopersicumSolanum lycopersicume0
- Compound
- NOe7
- Outcome
- positive effects of priminge7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two tomato cultivars ( Solanum lycopersicum , cv. Cherry and Falcato)”
e7“positive effects of priming are most likely mediated through NO signalling”
The same questions in other papers
sodium nitroprusside · growth · Solanum lycopersicum (tomato)Results differ
14 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
12 papers more in this group
See all 16 papers →methylene blue · growth · Solanum lycopersicum (tomato)Positive and negative results
1 in the opposite direction
- positive
sodium nitroprusside · quality: sugar starch · Solanum lycopersicum (tomato)Results agree
2 papers in the same direction as this paper
- positive
- positive
seed treatment · quality: sugar starch · Solanum lycopersicum (tomato)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
seed treatment · growth · Solanum lycopersicum (tomato)Positive and negative results
120 papers in the same direction as this paper · 10 in the opposite direction
- no effect
- positive
- positive
127 papers more in this group
See all 131 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.