Abstract
The aim of the present study was to describe eggplant (Solanum melongena L.) tolerance to stress factors in the seedling stage as a basis for future studies on cross-tolerance to other stressors in subsequent stages of growth. After germination (3 days / 26oC), ‘Epic F1’ seedlings were exposed to chilling stress (3, 6 and 9oC × 48 h-1), heat stress (35, 40 and 45oC × 2 h-1), osmotic stress (mannitol 0.2; 0.6 and 1.0 M x 2 h-1), and oxidative stress (H2O2 0.2; 0.4 and 0.6 M × 2 h-1). A linear measurement of seedling radicle growth, electrolyte leakage and external symptoms of radicle damage under the stress conditions, compared to the non-stressed control, were analyzed. It was found that stressors in all experimental combinations caused a morphological and physiological response from eggplant seedlings. A significant reduction in linear growth of radicles, showed as an absolute length and as a percentage of the control, was found in the treatments exposed to chilling stress (3 and 6oC), heat stress (35, 40 and 45oC), osmotic stress (0.2, 0.6 and 1.0 M mannitol) as well as oxidative stress (0.2, 0.4 and 0.6 M H2O2). The changes in seedling length as a result of stress factors did not always correspond with the changes in seedling mass. Electrolyte leakage in the treatments exposed to the following stressors: 3 and 6oC as well as 0.6 M H2O2, was significantly greater than that observed in control plants. Based on the obtained results and microscopic observations of radicle damage, the following stressors can be identified as those which cause a physiological response without severe damage: 9oC × 48 h-1 (chilling stress), 35oC × 2 h-1 (heat stress), 0.2 M mannitol × 2 h-1 (osmoticum), and H2O2 0.2 M × 2 h-1 (oxidation factor). We propose these stressors as a basis for future studies on plant acclimation and hardening to other stresses.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 13
Claim · model-written summary
All stress combinations elicited seedling morphological and physiological responses.
- Taxon
- eggplant
Solanum melongenae0 - Outcome
- morphological and physiological responsee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stressors in all experimental combinations caused a morphological and physiological response from eggplant seedlings”
Claim · model-written summary
Chilling at 3 and 6oC significantly reduced radicle growth.
- Taxon
- eggplantSolanum melongenat0
- Treatment
- chilling stress (3 and 6oC)e0
- Outcome
- linear growth of radiclese0
- Direction
- reductione0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A significant reduction in linear growth of radicles, showed as an absolute length and as a percentage of the control, was found in the treatments exposed to chilling stress (3 and 6oC)”
t0“eggplant”
Claim · model-written summary
Heat at 35, 40 and 45oC significantly reduced radicle growth.
- Taxon
- eggplantSolanum melongenat0
- Treatment
- heat stress (35, 40 and 45oC)e0
- Outcome
- linear growth of radiclese0
- Direction
- reductione0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A significant reduction in linear growth of radicles, showed as an absolute length and as a percentage of the control, was found in the treatments exposed to chilling stress (3 and 6oC), heat stress (35, 40 and 45oC)”
t0“eggplant”
Claim · model-written summary
Mannitol stress significantly reduced radicle growth.
- Taxon
- eggplantSolanum melongenat0
- Treatment
- osmotic stress (0.2, 0.6 and 1.0 M mannitol)e0
- Outcome
- linear growth of radiclese0
- Direction
- reductione0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A significant reduction in linear growth of radicles, showed as an absolute length and as a percentage of the control, was found in the treatments exposed to chilling stress (3 and 6oC), heat stress (35, 40 and 45oC), osmotic stress (0.2, 0.6 and 1.0 M mannitol)”
t0“eggplant”
Claim · model-written summary
Hydrogen peroxide stress significantly reduced radicle growth.
- Taxon
- eggplantSolanum melongenat0
- Treatment
- oxidative stress (0.2, 0.4 and 0.6 M H2O2)e0
- Outcome
- linear growth of radiclese0
- Direction
- reductione0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A significant reduction in linear growth of radicles, showed as an absolute length and as a percentage of the control, was found in the treatments exposed to chilling stress (3 and 6oC), heat stress (35, 40 and 45oC), osmotic stress (0.2, 0.6 and 1.0 M mannitol) as well as oxidative stress (0.2, 0.4 and 0.6 M H2O2)”
t0“eggplant”
Claim · model-written summary
Seedling length and mass responses did not always correspond.
- Taxon
- eggplantSolanum melongenat0
- Outcome
- changes in seedling lengthe0
- Qualifier
- changes in seedling masse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The changes in seedling length as a result of stress factors did not always correspond with the changes in seedling mass”
t0“eggplant”
Claim · model-written summary
Chilling at 3 and 6oC increased electrolyte leakage.
- Taxon
- eggplantSolanum melongenat0
- Treatment
- 3 and 6oCe0
- Outcome
- Electrolyte leakagee0
- Direction
- greatere0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Electrolyte leakage in the treatments exposed to the following stressors: 3 and 6oC as well as 0.6 M H2O2, was significantly greater than that observed in control plants”
t0“eggplant”
Claim · model-written summary
Hydrogen peroxide at 0.6 M increased electrolyte leakage.
- Taxon
- eggplantSolanum melongenat0
- Treatment
- 0.6 M H2O2e0
- Outcome
- Electrolyte leakagee0
- Direction
- greatere0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Electrolyte leakage in the treatments exposed to the following stressors: 3 and 6oC as well as 0.6 M H2O2, was significantly greater than that observed in control plants”
t0“eggplant”
Claim · model-written summary
Chilling at 9oC caused a physiological response without severe damage.
- Taxon
- eggplantSolanum melongenat0
- Outcome
- physiological response without severe damagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the following stressors can be identified as those which cause a physiological response without severe damage: 9oC × 48 h-1 (chilling stress)”
t0“eggplant”
Claim · model-written summary
Heat at 35oC caused a physiological response without severe damage.
- Taxon
- eggplantSolanum melongenat0
- Outcome
- heat stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“35oC × 2 h-1 (heat stress)”
t0“eggplant”
Claim · model-written summary
Mannitol at 0.2 M caused a physiological response without severe damage.
- Taxon
- eggplantSolanum melongenat0
- Outcome
- osmoticume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“0.2 M mannitol × 2 h-1 (osmoticum)”
t0“eggplant”
Claim · model-written summary
Hydrogen peroxide at 0.2 M caused a physiological response without severe damage.
- Taxon
- eggplantSolanum melongenat0
- Outcome
- oxidation factore0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“H2O2 0.2 M × 2 h-1 (oxidation factor)”
t0“eggplant”
Claim · model-written summary
The authors propose these stressors for acclimation research.
- Taxon
- eggplantSolanum melongenat0
- Outcome
- basis for future studies on plant acclimation and hardening to other stressese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We propose these stressors as a basis for future studies on plant acclimation and hardening to other stresses”
t0“eggplant”
The same questions in other papers
hydrogen peroxide · growth · Solanum melongena (eggplant)Results differ
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- no effect
hydrogen peroxide · physiology: oxidative · Solanum melongena (eggplant)Positive and negative results
1 in the opposite direction
- positive
heat · growth · Solanum melongena (eggplant)Positive and negative results
3 papers in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- positive
3 papers more in this group
See all 7 papers →cold · growth · Solanum melongena (eggplant)Positive and negative results
4 papers in the same direction as this paper · 4 in the opposite direction
- positive
- positive
- positive
5 papers more in this group
See all 9 papers →drought · growth · Solanum melongena (eggplant)Positive and negative results
12 papers in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- positive
12 papers more in this group
See all 16 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.