Paper · 2018 · Molecules

Genetic Variation and Alleviation of Salinity Stress in Barley (Hordeum vulgare L.)

Mohamed A. El-Esawi; Ibrahim A. Alaraidh; Abdulaziz A. Alsahli; et al.

13
claims
28
verbatim quotes
64
citations
2
research areas
✓
Open access · cc-by

Abstract

Barley (Hordeum vulgare L.) represents one of the most important cereals cultivated worldwide. Investigating genetic variability and structure of barley is important for enhancing the crop productivity. This study aimed to investigate the diversity and structure of 40 barley genotypes originated from three European countries (France, the Netherlands, Poland) using amplified fragment length polymorphisms (AFLPs). It also aimed to study 5-aminolevulinic acid (ALA) effect on salinity tolerance of six barley genotypes. The expected heterozygosity (He) diverged from 0.126 to 0.501, with a mean of 0.348. Polymorphic information content (PIC) diverged from 0.103 to 0.482 across barley genotypes, with a mean of 0.316, indicating that barley genotypes are rich in a considerable level of genetic diversity. The 40 barley genotypes were further studied based on their geographical origin (Western Europe and Eastern Europe). The Eastern European region (Poland) has a higher barley variability than the Western European region (France and the Netherlands). Nei’s distance-based cluster tree divided the 40 barley accessions into two major clusters; one cluster comprised all the varieties originated from the Eastern European region, while the other major cluster included all accessions originated from the Western European region. Structure analysis results were in a complete concordance with our cluster analysis results. Slaski 2, Damseaux and Urbanowicki genotypes have the highest diversity level, whereas Carmen, Bigo and Cambrinus genotypes have the lowest level. The response of these six varieties to NaCl stress was also investigated. Salt stress (100 mM NaCl) slightly decreased levels of chlorophyll, carotenoid and osmolytes (proteins, soluble sugars, phenolics and flavonoids) in the leaves of Slaski 2, Damseaux and Urbanowicki genotypes at non-significant level, as compared to control samples. However, pigment contents and osmolytes in leaves of Carmen, Bigo and Cambrinus genotypes were significantly decreased by salt stress. Antioxidant enzyme activities were significantly increased in Slaski 2 genotype, but non-significantly increased in Carmen by salt stress. Priming Slaski 2 and Carmen cultivars with ALA under salt stress significantly induced pigment contents, antioxidants enzymes activity and stress-responsive genes expression, relative to NaCl-stressed plants. In conclusion, this study suggested a correlation between variability percentage and degree of salinity resistance. ALA improved salt tolerance in barley.

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Claims 13

Observationobservedoriginal resultmeasured

Claim · model-written summary

Expected heterozygosity of the barley genotypes ranged from 0.126 to 0.501, with a mean of 0.348.

Material
barley genotypese1
Outcome
expected heterozygosity (He)e2
Value
0.126 to 0.501e2
Setting
three European countries (France, the Netherlands, Poland)e1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Alleviation of Salinity Stress in Barley (Hordeum vulgare L.)”

✓ located verbatim in the source · title, characters 22–83 · show in text ↑
e1

“40 barley genotypes originated from three European countries (France, the Netherlands, Poland)”

✓ located verbatim in the source · abstract, characters 266–360 · show in text ↑
e2

“The expected heterozygosity (He) diverged from 0.126 to 0.501, with a mean of 0.348”

✓ located verbatim in the source · abstract, characters 521–604 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Polymorphic information content of the barley genotypes ranged from 0.103 to 0.482, with a mean of 0.316.

Material
barley genotypese3
Outcome
Polymorphic information content (PIC)e3
Value
0.103 to 0.482e3

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Alleviation of Salinity Stress in Barley (Hordeum vulgare L.)”

✓ located verbatim in the source · title, characters 22–83 · show in text ↑
e3

“Polymorphic information content (PIC) diverged from 0.103 to 0.482 across barley genotypes, with a mean of 0.316”

✓ located verbatim in the source · abstract, characters 606–718 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

The Eastern European region (Poland) has higher barley variability than the Western European region.

Outcome
barley variabilitye4
Direction
highere4
Comparator
Western European region (France and the Netherlands)e4
Setting
Eastern European region (Poland)e4

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Alleviation of Salinity Stress in Barley (Hordeum vulgare L.)”

✓ located verbatim in the source · title, characters 22–83 · show in text ↑
e4

“The Eastern European region (Poland) has a higher barley variability than the Western European region (France and the Netherlands)”

✓ located verbatim in the source · abstract, characters 925–1055 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Nei’s distance-based cluster tree divided the 40 barley accessions into two major clusters.

Outcome
the 40 barley accessionse5
Qualifier
into two major clusterse5

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Alleviation of Salinity Stress in Barley (Hordeum vulgare L.)”

✓ located verbatim in the source · title, characters 22–83 · show in text ↑
e5

“Nei’s distance-based cluster tree divided the 40 barley accessions into two major clusters”

✓ located verbatim in the source · abstract, characters 1057–1147 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Slaski 2, Damseaux and Urbanowicki genotypes had the highest barley diversity level.

Material
Slaski 2, Damseaux and Urbanowicki genotypese6
Outcome
diversity levele6
Qualifier
higheste6

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Alleviation of Salinity Stress in Barley (Hordeum vulgare L.)”

✓ located verbatim in the source · title, characters 22–83 · show in text ↑
e6

“Slaski 2, Damseaux and Urbanowicki genotypes have the highest diversity level, whereas Carmen, Bigo and Cambrinus genotypes have the lowest level”

✓ located verbatim in the source · abstract, characters 1426–1571 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Carmen, Bigo and Cambrinus genotypes had the lowest barley diversity level.

Material
Carmen, Bigo and Cambrinus genotypese6
Outcome
diversity levele6
Qualifier
loweste6

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Alleviation of Salinity Stress in Barley (Hordeum vulgare L.)”

✓ located verbatim in the source · title, characters 22–83 · show in text ↑
e6

“Slaski 2, Damseaux and Urbanowicki genotypes have the highest diversity level, whereas Carmen, Bigo and Cambrinus genotypes have the lowest level”

✓ located verbatim in the source · abstract, characters 1426–1571 · show in text ↑
Intervention effectobservedoriginal resultnegativenot significant (as stated)measured

Claim · model-written summary

Salt stress slightly decreased chlorophyll, carotenoid and osmolyte levels in Slaski 2, Damseaux and Urbanowicki, not significantly.

Material
Slaski 2, Damseaux and Urbanowicki genotypese7
Organ / stage
leavese7
Treatment
Salt stress (100 mM NaCl)e7
Outcome
chlorophyll, carotenoid and osmolytese7
Direction
slightly decreasede7
Comparator
control samplese7

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Alleviation of Salinity Stress in Barley (Hordeum vulgare L.)”

✓ located verbatim in the source · title, characters 22–83 · show in text ↑
e7

“Salt stress (100 mM NaCl) slightly decreased levels of chlorophyll, carotenoid and osmolytes (proteins, soluble sugars, phenolics and flavonoids) in the leaves of Slaski 2, Damseaux and Urbanowicki genotypes at non-significant level, as compared to control samples”

✓ located verbatim in the source · abstract, characters 1647–1911 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Salt stress significantly decreased pigment contents and osmolytes in Carmen, Bigo and Cambrinus genotypes.

Material
Carmen, Bigo and Cambrinus genotypese1
Organ / stage
leavese1
Treatment
salt stresse1
Outcome
pigment contents and osmolytese1
Direction
significantly decreasede1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Alleviation of Salinity Stress in Barley (Hordeum vulgare L.)”

✓ located verbatim in the source · title, characters 22–83 · show in text ↑
e1

“However, pigment contents and osmolytes in leaves of Carmen, Bigo and Cambrinus genotypes were significantly decreased by salt stress”

✓ located verbatim in the source · abstract, characters 1913–2046 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Salt stress significantly increased antioxidant enzyme activities in Slaski 2.

Material
Slaski 2 genotypee1
Treatment
salt stresse1
Outcome
Antioxidant enzyme activitiese1
Direction
significantly increasede1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Alleviation of Salinity Stress in Barley (Hordeum vulgare L.)”

✓ located verbatim in the source · title, characters 22–83 · show in text ↑
e1

“Antioxidant enzyme activities were significantly increased in Slaski 2 genotype, but non-significantly increased in Carmen by salt stress”

✓ located verbatim in the source · abstract, characters 2048–2185 · show in text ↑
Intervention effectobservedoriginal resultpositivenot significant (as stated)measured

Claim · model-written summary

Salt stress non-significantly increased antioxidant enzyme activities in Carmen.

Material
Carmene1
Treatment
salt stresse1
Outcome
Antioxidant enzyme activitiese1
Direction
non-significantly increasede1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Alleviation of Salinity Stress in Barley (Hordeum vulgare L.)”

✓ located verbatim in the source · title, characters 22–83 · show in text ↑
e1

“Antioxidant enzyme activities were significantly increased in Slaski 2 genotype, but non-significantly increased in Carmen by salt stress”

✓ located verbatim in the source · abstract, characters 2048–2185 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

ALA priming under salt stress significantly induced pigment contents, antioxidant enzyme activity and stress-responsive gene expression in Slaski 2 and Carmen.

Material
Slaski 2 and Carmen cultivarse1
Treatment
with ALA under salt stresse1
Outcome
pigment contents, antioxidants enzymes activity and stress-responsive genes expressione1
Direction
significantly inducede1
Comparator
NaCl-stressed plantse1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Alleviation of Salinity Stress in Barley (Hordeum vulgare L.)”

✓ located verbatim in the source · title, characters 22–83 · show in text ↑
e1

“Priming Slaski 2 and Carmen cultivars with ALA under salt stress significantly induced pigment contents, antioxidants enzymes activity and stress-responsive genes expression, relative to NaCl-stressed plants”

✓ located verbatim in the source · abstract, characters 2187–2394 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

ALA improved salt tolerance in barley.

Treatment
ALAe1
Outcome
salt tolerancee1
Direction
improvede1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Alleviation of Salinity Stress in Barley (Hordeum vulgare L.)”

✓ located verbatim in the source · title, characters 22–83 · show in text ↑
e1

“ALA improved salt tolerance in barley”

✓ located verbatim in the source · abstract, characters 2512–2549 · show in text ↑
Associationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The study suggests a correlation between variability percentage and degree of salinity resistance in barley genotypes.

Material
barley genotypese1
Outcome
degree of salinity resistancee2

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Alleviation of Salinity Stress in Barley (Hordeum vulgare L.)”

✓ located verbatim in the source · title, characters 22–83 · show in text ↑
e1

“40 barley genotypes originated from three European countries (France, the Netherlands, Poland)”

✓ located verbatim in the source · abstract, characters 266–360 · show in text ↑
e2

“this study suggested a correlation between variability percentage and degree of salinity resistance”

✓ located verbatim in the source · abstract, characters 2411–2510 · show in text ↑

sodium chloride · physiology: pigments · Hordeum vulgare (barley)Results differ

9 papers: 0 positive, 9 negative or no effect

8 papers in the same direction as this paper

  1. negative
  2. negative
  3. negative

5 papers more in this group

See all 9 papers →

salinity · physiology: pigments · Hordeum vulgare (barley)Positive and negative results

18 papers: 2 positive, 16 negative or no effect

15 papers in the same direction as this paper · 2 in the opposite direction

  1. negative
  2. positive
  3. positive

14 papers more in this group

See all 18 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.