Abstract
Abstract Stressful saline concentrations in soils affect photosynthesis by damaging pigments, photosystems, components of electron transport system, and enzymes involved in the process. Plants respond through very complex stress adaptation mechanisms including proteome modulation, alterations in pigment content, cell osmotic adjustment and control of ion and water homeostasis mechanisms, which stabilize cytosolic glutathione redox potential, etc. The level of plant sensitivity depends on salt toxicity levels, growth stage, physiological and genetic factors. With aim the investigation of the salinity tolerant cultivars, and for the elucidation of mechanisms underlying this complex biological process, here we analyze the impact of four NaCl concentrations (0-50-100-200mM) in growth parameters (root, shoot and leaves length), pigment content (chla, chlb, carotenoids), and GSH content, during seedling of five bread wheat ( Triticum aestivum L.) cultivars in modified Hoagland solutions. Based on biometric parameters, pigment synthesis and GSH content cultivar Nogal is salt-sensitive (growth and pigments reduced); cultivar Viktoria is medium-tolerant (growth partially impaired, pigments constant), cultivar Toborzo and cultivar Suba are medium-tolerant (growth partially impaired, pigments increased), cultivar Dajti salt-tolerant (growth partially impaired/ leaves developed, pigments increased). Quantity of GSH in response to different levels of salinity is cultivar specific, and time of exposure to salinity is in negative correlation to GSH content for all investigated cultivars.
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Claims 9
Claim · model-written summary
Nogal was salt sensitive, with reduced growth and pigments.
- Taxon
- wheat
Triticum aestivumt0 - Material
- Nogale0
- Treatment
- NaCl concentrationst1
- Outcome
- growth and pigmentse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cultivar Nogal is salt-sensitive (growth and pigments reduced)”
t0“wheat”
t1“NaCl concentrations”
Claim · model-written summary
Viktoria had partially impaired growth under salt exposure.
- Taxon
- wheatTriticum aestivumt0
- Material
- Viktoriae0
- Treatment
- NaCl concentrationst1
- Outcome
- growthe0
- Direction
- partially impairede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cultivar Viktoria is medium-tolerant (growth partially impaired, pigments constant)”
t0“wheat”
t1“NaCl concentrations”
Claim · model-written summary
Viktoria pigment levels stayed constant under salt exposure.
- Taxon
- wheatTriticum aestivumt0
- Material
- Viktoriae0
- Treatment
- NaCl concentrationst1
- Outcome
- pigmentse0
- Direction
- constante0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cultivar Viktoria is medium-tolerant (growth partially impaired, pigments constant)”
t0“wheat”
t1“NaCl concentrations”
Claim · model-written summary
Toborzo and Suba had partially impaired growth under salinity.
- Taxon
- wheatTriticum aestivumt0
- Material
- Toborzo and cultivar Subae0
- Treatment
- NaCl concentrationst1
- Outcome
- growthe0
- Direction
- partially impairede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cultivar Toborzo and cultivar Suba are medium-tolerant (growth partially impaired, pigments increased)”
t0“wheat”
t1“NaCl concentrations”
Claim · model-written summary
Toborzo and Suba had increased pigments under salinity.
- Taxon
- wheatTriticum aestivumt0
- Material
- Toborzo and cultivar Subae0
- Treatment
- NaCl concentrationst1
- Outcome
- pigmentse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cultivar Toborzo and cultivar Suba are medium-tolerant (growth partially impaired, pigments increased)”
t0“wheat”
t1“NaCl concentrations”
Claim · model-written summary
Dajti growth was partially impaired under salinity while leaves developed.
- Taxon
- wheatTriticum aestivumt0
- Material
- Dajtie0
- Treatment
- NaCl concentrationst1
- Outcome
- growthe0
- Direction
- partially impairede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cultivar Dajti salt-tolerant (growth partially impaired/ leaves developed, pigments increased)”
t0“wheat”
t1“NaCl concentrations”
Claim · model-written summary
Dajti pigments increased under salinity.
- Taxon
- wheatTriticum aestivumt0
- Material
- Dajtie0
- Treatment
- NaCl concentrationst1
- Outcome
- pigmentse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cultivar Dajti salt-tolerant (growth partially impaired/ leaves developed, pigments increased)”
t0“wheat”
t1“NaCl concentrations”
Claim · model-written summary
GSH response to salinity levels differed by cultivar.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- different levels of salinitye0
- Outcome
- Quantity of GSHe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Quantity of GSH in response to different levels of salinity is cultivar specific”
t0“wheat”
Claim · model-written summary
GSH content correlated negatively with duration of salinity exposure in all cultivars.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- salinitye0
- Outcome
- GSH contente0
- Direction
- negativee0
- Qualifier
- all investigated cultivarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“time of exposure to salinity is in negative correlation to GSH content for all investigated cultivars”
t0“wheat”
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