Abstract
The negative effects of salt stress on plants and their environment are increasing dramatically day by day, and it is very crucial for plants to develop salt tolerance with various applications. To this end, in recent years, there is a need for studies to increase salt tolerance with in vitro cultures in which controlled conditions are provided as an alternative approach to greenhouse and pot experiments, which are affected by environmental external conditions. In this study, 24-epibrassinolide (24-epiBL) was used for increasing salt tolerance via in vitro shoot tip cultures of tomato M-28 hybrid cultivar. Shoot tips of 10-day sterile seedlings were placed in MS medium supplemented with 2 mg L-1 K + 0.4 mg L-1 NAA in 12-day culture period, and 12-day old plantlets soaked in 24-epiBL solutions (0, 1, 2 µM) were transferred to MS medium containing different concentrations of NaCl (0, 20, 40, 60, 80, 100 mM). After 20 days, it was determined that morphological parameters (lenght, fresh and dry weight of plantlets) and biochemical parameters (pigment, MDA, proline, total soluble protein contents, POX and SOD enzyme activities). All developmental parameters and various biochemical parameters such as pigment and total soluble protein contents negatively affected by NaCl stress, whereas MDA, proline content, SOD and POX enzyme activities increased. It was found that increase in fresh weight, pigment content, SOD and POX enzyme activity with 24-epiBL pretreatment agaist NaCl stress were found statistically significant difference. Hovewer MDA content decreased with 24-epiBL pretreatment under NaCl. As a result, NaCl responses in plant varies between different NaCl and 24-epiBL concentrations, and the various deffence strategies combine multiple tolerance mechanisms. It was determined that 24-epiBL may play a crucial role increasing salt tolerance using in vitro shoot tip cultures of tomato M-28 hybrid cultivar.
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Claims 6
Claim · model-written summary
NaCl stress negatively affected developmental parameters in tomato cultures.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- NaCl stresse0
- Outcome
- developmental parameterse0
- Direction
- negatively affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All developmental parameters and various biochemical parameters such as pigment and total soluble protein contents negatively affected by NaCl stress”
t0“tomato (Solanum lycopersicum L.)”
Claim · model-written summary
NaCl stress negatively affected pigment and total soluble protein contents.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- NaCl stresse0
- Outcome
- pigment and total soluble protein contentse0
- Direction
- negatively affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All developmental parameters and various biochemical parameters such as pigment and total soluble protein contents negatively affected by NaCl stress”
t0“tomato (Solanum lycopersicum L.)”
Claim · model-written summary
NaCl stress increased MDA and proline content and SOD and POX enzyme activities.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- NaCl stresse1
- Outcome
- MDA, proline content, SOD and POX enzyme activitiese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MDA, proline content, SOD and POX enzyme activities increased”
e1“negatively affected by NaCl stress”
t0“tomato (Solanum lycopersicum L.)”
Claim · model-written summary
24-epiBL pretreatment significantly increased fresh weight and pigment content under NaCl stress.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- 24-epiBL pretreatmente0
- Outcome
- fresh weight, pigment contente0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase in fresh weight, pigment content, SOD and POX enzyme activity with 24-epiBL pretreatment agaist NaCl stress were found statistically significant difference”
t0“tomato (Solanum lycopersicum L.)”
Claim · model-written summary
24-epiBL pretreatment significantly increased SOD and POX enzyme activity under NaCl stress.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- 24-epiBL pretreatmente0
- Outcome
- SOD and POX enzyme activitye0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase in fresh weight, pigment content, SOD and POX enzyme activity with 24-epiBL pretreatment agaist NaCl stress were found statistically significant difference”
t0“tomato (Solanum lycopersicum L.)”
Claim · model-written summary
24-epiBL pretreatment decreased MDA content under NaCl.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- 24-epiBL pretreatmente0
- Outcome
- MDA contente0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MDA content decreased with 24-epiBL pretreatment under NaCl”
t0“tomato (Solanum lycopersicum L.)”
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