Paper · 2024 · BMC Plant Biology

The role of salicylic acid in modulating phenotyping in spring wheat varieties for mitigating drought stress

Rawan A. Awadalla; Ahmed Sallam; Andreas Börner; et al.

9
claims
18
verbatim quotes
7
citations
2
research areas
✓
Open access · cc-by

Abstract

Climate change-related droughts that recur frequently are one of the biggest obstacles to wheat (Triticum aestivum L.) productivity. Worldwide, attempts are being done to establish drought-resistant cultivars. However, progress is slow since drought tolerance is a complex trait controlled by numerous genes, and its expression is influenced by the environment. Phenotypic, biochemical physiological, and genotyping approaches are highlighted as critical research components for leveraging genetic variation in eight wheat genotypes. Treatments included eight spring wheat genotypes (IPK_040, IPK_046, IPK_050, IPK_071, IPK_105, WAS_007, WAS_024 and WAS_031), normal irrigation (NI), drought stress (D) (30% field capacity (FC)), normal irrigation with 0.5 mM SA (NSA), and drought treated with SA (DSA). The results revealed that there was a reduction in relative water content, an increase membrane leakage, and leaf chlorophyll content under drought stress. SA induced the defense responses against drought by increasing the osmolytes and the antioxidative enzymes activities. Compared to the NI group, the DSA treatment improved the water regulation, antioxidant capacity, and drought stress resistance. SA significantly reduced the deleterious effects of water stress on phenotyping more in WAS_ 024 and IPK_ 105 genotypes. The most responsive genotypes to salicylic acid were IPK_ 046 among the IPK genotypes, whereas WAS_031 genotype was amongst WAS genotypes based on the morpho-physiological traits. The findings of this study give a solid foundation for assessing drought resistance in T. aestivum and developing cultivation-specific water management methods.

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Claims 9

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Drought stress reduced relative water content in wheat.

Treatment
drought stresse1
Outcome
relative water contente1
Direction
reductione1

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“obstacles to wheat (Triticum aestivum L.) productivity”

✓ located verbatim in the source · abstract, characters 77–131 · show in text ↑
e1

“The results revealed that there was a reduction in relative water content, an increase membrane leakage, and leaf chlorophyll content under drought stress”

✓ located verbatim in the source · abstract, characters 805–959 · show in text ↑
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Drought stress increased membrane leakage in wheat.

Treatment
drought stresse1
Outcome
membrane leakagee1
Direction
increasee1

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“obstacles to wheat (Triticum aestivum L.) productivity”

✓ located verbatim in the source · abstract, characters 77–131 · show in text ↑
e1

“The results revealed that there was a reduction in relative water content, an increase membrane leakage, and leaf chlorophyll content under drought stress”

✓ located verbatim in the source · abstract, characters 805–959 · show in text ↑
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Drought stress reduced leaf chlorophyll content in wheat.

Treatment
drought stresse1
Outcome
leaf chlorophyll contente1
Direction
decreaseinferrede1

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“obstacles to wheat (Triticum aestivum L.) productivity”

✓ located verbatim in the source · abstract, characters 77–131 · show in text ↑
e1

“The results revealed that there was a reduction in relative water content, an increase membrane leakage, and leaf chlorophyll content under drought stress”

✓ located verbatim in the source · abstract, characters 805–959 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Salicylic acid increased osmolytes in drought-stressed wheat.

Treatment
SAe2
Outcome
osmolytese2
Direction
increasinge2

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“obstacles to wheat (Triticum aestivum L.) productivity”

✓ located verbatim in the source · abstract, characters 77–131 · show in text ↑
e2

“SA induced the defense responses against drought by increasing the osmolytes and the antioxidative enzymes activities”

✓ located verbatim in the source · abstract, characters 961–1078 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Salicylic acid increased antioxidative enzyme activities in drought-stressed wheat.

Treatment
SAe2
Outcome
antioxidative enzymes activitiese2
Direction
increasinge2

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“obstacles to wheat (Triticum aestivum L.) productivity”

✓ located verbatim in the source · abstract, characters 77–131 · show in text ↑
e2

“SA induced the defense responses against drought by increasing the osmolytes and the antioxidative enzymes activities”

✓ located verbatim in the source · abstract, characters 961–1078 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The DSA treatment improved water regulation, antioxidant capacity and drought stress resistance compared with the NI group.

Treatment
DSA treatmente3
Outcome
water regulation, antioxidant capacity, and drought stress resistancee3
Direction
improvede3
Comparator
NI groupe3

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“obstacles to wheat (Triticum aestivum L.) productivity”

✓ located verbatim in the source · abstract, characters 77–131 · show in text ↑
e3

“Compared to the NI group, the DSA treatment improved the water regulation, antioxidant capacity, and drought stress resistance”

✓ located verbatim in the source · abstract, characters 1080–1206 · show in text ↑
Associationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Salicylic acid significantly reduced the deleterious effects of water stress on phenotyping in WAS_ 024 and IPK_ 105.

Material
WAS_ 024 and IPK_ 105e4
Treatment
SAe4
Outcome
deleterious effects of water stress on phenotypinge4
Direction
reducede4

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“obstacles to wheat (Triticum aestivum L.) productivity”

✓ located verbatim in the source · abstract, characters 77–131 · show in text ↑
e4

“SA significantly reduced the deleterious effects of water stress on phenotyping more in WAS_ 024 and IPK_ 105 genotypes”

✓ located verbatim in the source · abstract, characters 1208–1327 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

IPK_ 046 was the most salicylic-acid-responsive genotype among the IPK genotypes.

Material
IPK_ 046e5
Treatment
salicylic acide5
Outcome
most responsive genotypes to salicylic acide5

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“obstacles to wheat (Triticum aestivum L.) productivity”

✓ located verbatim in the source · abstract, characters 77–131 · show in text ↑
e5

“The most responsive genotypes to salicylic acid were IPK_ 046 among the IPK genotypes”

✓ located verbatim in the source · abstract, characters 1329–1414 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

WAS_031 was among the most responsive WAS genotypes based on morpho-physiological traits.

Material
WAS_031e6
Outcome
morpho-physiological traitse6

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“obstacles to wheat (Triticum aestivum L.) productivity”

✓ located verbatim in the source · abstract, characters 77–131 · show in text ↑
e6

“whereas WAS_031 genotype was amongst WAS genotypes based on the morpho-physiological traits”

✓ located verbatim in the source · abstract, characters 1416–1507 · show in text ↑

salicylic acid · tolerance: abiotic · Triticum aestivum (wheat)Results differ

9 papers: 8 positive, 1 negative or no effect

7 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. positive

5 papers more in this group

See all 9 papers →

drought · tolerance: abiotic · Triticum aestivum (wheat)Positive and negative results

14 papers: 12 positive, 2 negative or no effect

11 papers in the same direction as this paper · 1 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. positive

10 papers more in this group

See all 14 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.