Abstract
High temperature has deleterious impacts on tomato growth and development and limits its production. Acetyl salicylic acid (ASA) and 24-epibrassinolide (EBL) have been widely reported as stress-ameliorating agents. The effect of exogenous application of varying levels of EBL (0.75, 1.5, and 3 µM) and ASA (0.25, 0.75, and 1.25 mM) on root activity (RA) in terms of 2,3,5 triphenyl tetrazolium chloride (TTC) reduction and root morphological features was evaluated in four-week-old tomato seedlings (cultivar: Mei Jie Lo) grown under high-temperature stress (46°C/4 h per day) for 21 days. The daily heat stress treatment almost ceased the root growth of chemically untreated seedlings. However, both EBL and ASA significantly attenuated the deleterious impacts of heat stress to different extents regarding root activity, total root length, surface area, volume, and number of nodes and connections. Different concentrations demonstrated signature effects. EBL (3 µM) was over all the best treatment to improve root activity whereas ASA (0.25 mM) best enhanced root architecture (net length, volume, and area) as compared to the untreated heat-stressed controls. However, EBL (3 µM) and ASA (1.25 mM) slightly inhibited mean root diameter. It is concluded that under high-temperature conditions, the exogenous EBL and ASA in studied doses improve root morphological features and root activity, hence enhance heat stress tolerance. Both chemical agents can be potential candidates in practical agriculture for extension of tomato growth period in summer by virtue of their heat stress amelioration ability.
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 10
Claim · model-written summary
Daily heat stress nearly stopped root growth in untreated tomato seedlings.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- daily heat stress treatmente0
- Outcome
- root growthe0
- Direction
- almost ceasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The daily heat stress treatment almost ceased the root growth of chemically untreated seedlings”
t0“tomato plants”
Claim · model-written summary
EBL significantly attenuated heat stress effects on tomato root activity, root size, and root branching.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- EBLe0
- Outcome
- root activity, total root length, surface area, volume, and number of nodes and connectionse0
- Direction
- attenuatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both EBL and ASA significantly attenuated the deleterious impacts of heat stress to different extents regarding root activity, total root length, surface area, volume, and number of nodes and connections”
t0“tomato plants”
Claim · model-written summary
ASA significantly attenuated heat stress effects on tomato root activity, root size, and root branching.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- ASAe0
- Outcome
- root activity, total root length, surface area, volume, and number of nodes and connectionse0
- Direction
- attenuatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both EBL and ASA significantly attenuated the deleterious impacts of heat stress to different extents regarding root activity, total root length, surface area, volume, and number of nodes and connections”
t0“tomato plants”
Claim · model-written summary
EBL at 3 µM best improved root activity relative to untreated heat stressed controls.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- EBL (3 µM)e0
- Outcome
- root activitye0
- Direction
- best treatment to improvee0
- Comparator
- untreated heat-stressed controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“EBL (3 µM) was over all the best treatment to improve root activity whereas ASA (0.25 mM) best enhanced root architecture (net length, volume, and area) as compared to the untreated heat-stressed controls”
t0“tomato plants”
Claim · model-written summary
ASA at 0.25 mM best enhanced root architecture relative to untreated heat stressed controls.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- ASA (0.25 mM)e0
- Outcome
- root architecture (net length, volume, and area)e0
- Direction
- best enhancede0
- Comparator
- untreated heat-stressed controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“EBL (3 µM) was over all the best treatment to improve root activity whereas ASA (0.25 mM) best enhanced root architecture (net length, volume, and area) as compared to the untreated heat-stressed controls”
t0“tomato plants”
Claim · model-written summary
EBL at 3 µM slightly inhibited mean root diameter.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- EBL (3 µM)e0
- Outcome
- mean root diametere0
- Direction
- slightly inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“EBL (3 µM) and ASA (1.25 mM) slightly inhibited mean root diameter”
t0“tomato plants”
Claim · model-written summary
ASA at 1.25 mM slightly inhibited mean root diameter.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- ASA (1.25 mM)e0
- Outcome
- mean root diametere0
- Direction
- slightly inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“EBL (3 µM) and ASA (1.25 mM) slightly inhibited mean root diameter”
t0“tomato plants”
Claim · model-written summary
The authors infer that studied doses of EBL improve tomato heat stress tolerance through root responses.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- EBLe0
- Outcome
- heat stress tolerancee0
- Direction
- enhancee0
- Qualifier
- root morphological features and root activitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the exogenous EBL and ASA in studied doses improve root morphological features and root activity, hence enhance heat stress tolerance”
t0“tomato plants”
Claim · model-written summary
The authors infer that studied doses of ASA improve tomato heat stress tolerance through root responses.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- ASAe0
- Outcome
- heat stress tolerancee0
- Direction
- enhancee0
- Qualifier
- root morphological features and root activitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the exogenous EBL and ASA in studied doses improve root morphological features and root activity, hence enhance heat stress tolerance”
t0“tomato plants”
Claim · model-written summary
The authors propose EBL and ASA as agents to extend summer tomato growth.
- Taxon
- tomatoSolanum lycopersicume0
- Outcome
- potential candidates in practical agriculture for extension of tomato growth period in summere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both chemical agents can be potential candidates in practical agriculture for extension of tomato growth period in summer by virtue of their heat stress amelioration ability”
The same questions in other papers
24-epi-brassinolide · growth · Solanum lycopersicum (tomato)Results differ
17 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
15 papers more in this group
See all 19 papers →acetylsalicylic acid · growth · Solanum lycopersicum (tomato)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- positive
1 paper more in this group
See all 5 papers →heat · growth · Solanum lycopersicum (tomato)Results differ
54 papers in the same direction as this paper · 26 in the opposite direction
- positive
- positive
- positive
77 papers more in this group
See all 81 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.