Paper · 2025 · Plant Stress

Integrative transcriptome and metabolome analysis reveal key pathways in combined salt-alkali tolerance of wheat (Triticum aestivum L.)

Jianan Huang; Yindeng Ding; Guiqiang Fan; et al.

10
claims
21
verbatim quotes
1
citations
2
research areas
✓
Open access · cc-by

Abstract

• Two salt-alkali-tolerant (ST) and two sensitive (SS) wheat genotypes showed contrasting growth and stress responses under sodium sulfate. • ST wheat had higher soluble sugars, proline, and SOD activity, with lower MDA, reflecting better osmotic and oxidative stress management. • Transcriptome–metabolome analysis revealed DEGs and pathways—amino acid metabolism, ABC transporters, and glutathione—underpinning ST tolerance, offering targets for breeding resilient wheat. Wheat production in southern Xinjiang is severely limited by sulfate-dominated saline–alkali soils, which are characterized by high salinity and alkalinity, yet the molecular mechanisms underlying varietal differences in tolerance remain poorly understood. Here, we evaluated 120 wheat varieties under sodium sulfate stress and identified two salt-alkali-tolerant (ST) and two salt-alkali-sensitive (SS) genotypes. Compared with SS wheat, ST wheat maintained higher root and shoot growth, accumulated more soluble sugars and antioxidant enzymes (SOD), and exhibited lower membrane damage (MDA) under stress. Transcriptome analysis revealed that key genes such as P5CS/P5CR, SOS1/NHX1 , ABC transporters, and GSHS/GST were significantly upregulated. Metabolomic profiling demonstrated significant enrichment in pathways associated with ABC transporters (67 metabolites), glutathione metabolism (GSH/GSSG, 47 metabolites), and related amino acid metabolism pathways (48 metabolites). Integrated network analysis revealed that the amino acid metabolism-ion transport-glutathione metabolism module represents the central regulatory network associated with stress tolerance. This study provides new insights into the mechanisms of wheat tolerance to sulfate-type saline-alkali stress and offers candidate genes, metabolites, and physiological traits for marker-assisted selection, germplasm screening, and targeted breeding to improve crop performance in saline-alkali soils.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

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Claims 10

Observationobservedoriginal resultmeasured

Claim · model-written summary

Two salt-alkali-tolerant and two salt-alkali-sensitive wheat genotypes were identified among 120 varieties under sodium sulfate stress

Treatment
sodium sulfate stresse4
Outcome
two salt-alkali-tolerant (ST) and two salt-alkali-sensitive (SS) genotypese4

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

e4

“we evaluated 120 wheat varieties under sodium sulfate stress and identified two salt-alkali-tolerant (ST) and two salt-alkali-sensitive (SS) genotypes”

✓ located verbatim in the source · abstract, characters 737–887 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Tolerant wheat maintained higher root and shoot growth than sensitive wheat under sodium sulfate stress

Material
ST wheate1
Treatment
sodium sulfate stresse4
Outcome
root and shoot growthe1
Direction
highere1
Comparator
SS wheate1

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

e1

“Compared with SS wheat, ST wheat maintained higher root and shoot growth”

✓ located verbatim in the source · abstract, characters 889–961 · show in text ↑
e4

“we evaluated 120 wheat varieties under sodium sulfate stress and identified two salt-alkali-tolerant (ST) and two salt-alkali-sensitive (SS) genotypes”

✓ located verbatim in the source · abstract, characters 737–887 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Tolerant wheat accumulated more soluble sugars and antioxidant enzymes (SOD) than sensitive wheat under sodium sulfate stress

Material
ST wheate1
Treatment
sodium sulfate stresse4
Outcome
soluble sugars and antioxidant enzymes (SOD)e2
Direction
moree2
Comparator
SS wheate1

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

e1

“Compared with SS wheat, ST wheat maintained higher root and shoot growth”

✓ located verbatim in the source · abstract, characters 889–961 · show in text ↑
e2

“accumulated more soluble sugars and antioxidant enzymes (SOD)”

✓ located verbatim in the source · abstract, characters 963–1024 · show in text ↑
e4

“we evaluated 120 wheat varieties under sodium sulfate stress and identified two salt-alkali-tolerant (ST) and two salt-alkali-sensitive (SS) genotypes”

✓ located verbatim in the source · abstract, characters 737–887 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Tolerant wheat exhibited lower membrane damage (MDA) than sensitive wheat under sodium sulfate stress

Material
ST wheate1
Treatment
sodium sulfate stresse4
Outcome
membrane damage (MDA)e3
Direction
lowere3
Comparator
SS wheate1

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

e1

“Compared with SS wheat, ST wheat maintained higher root and shoot growth”

✓ located verbatim in the source · abstract, characters 889–961 · show in text ↑
e3

“exhibited lower membrane damage (MDA) under stress”

✓ located verbatim in the source · abstract, characters 1030–1080 · show in text ↑
e4

“we evaluated 120 wheat varieties under sodium sulfate stress and identified two salt-alkali-tolerant (ST) and two salt-alkali-sensitive (SS) genotypes”

✓ located verbatim in the source · abstract, characters 737–887 · show in text ↑
Observationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

P5CS/P5CR and SOS1/NHX1 genes were significantly upregulated in wheat under the stress

Gene
P5CS/P5CR, SOS1/NHX1e5
Outcome
key genese5
Direction
upregulatede5

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

e1

“Compared with SS wheat, ST wheat maintained higher root and shoot growth”

✓ located verbatim in the source · abstract, characters 889–961 · show in text ↑
e5

“Transcriptome analysis revealed that key genes such as P5CS/P5CR, SOS1/NHX1 , ABC transporters, and GSHS/GST were significantly upregulated”

✓ located verbatim in the source · abstract, characters 1082–1221 · show in text ↑
Observationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

ABC transporters and GSHS/GST genes were significantly upregulated in wheat under the stress

Gene
ABC transporters, and GSHS/GSTe5
Outcome
key genese5
Direction
upregulatede5

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

e1

“Compared with SS wheat, ST wheat maintained higher root and shoot growth”

✓ located verbatim in the source · abstract, characters 889–961 · show in text ↑
e5

“Transcriptome analysis revealed that key genes such as P5CS/P5CR, SOS1/NHX1 , ABC transporters, and GSHS/GST were significantly upregulated”

✓ located verbatim in the source · abstract, characters 1082–1221 · show in text ↑
Observationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

The ABC transporter pathway was significantly enriched in metabolites (67 metabolites) in wheat under the stress

Outcome
pathways associated with ABC transporterse7
Value
67 metabolitese7

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

e1

“Compared with SS wheat, ST wheat maintained higher root and shoot growth”

✓ located verbatim in the source · abstract, characters 889–961 · show in text ↑
e7

“significant enrichment in pathways associated with ABC transporters (67 metabolites)”

✓ located verbatim in the source · abstract, characters 1258–1342 · show in text ↑
Observationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

The glutathione metabolism pathway was significantly enriched in metabolites (47 metabolites) in wheat under the stress

Outcome
glutathione metabolisme2
Value
47 metabolitese2

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

e1

“Compared with SS wheat, ST wheat maintained higher root and shoot growth”

✓ located verbatim in the source · abstract, characters 889–961 · show in text ↑
e2

“glutathione metabolism (GSH/GSSG, 47 metabolites)”

✓ located verbatim in the source · abstract, characters 1344–1393 · show in text ↑
Observationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Related amino acid metabolism pathways were significantly enriched in metabolites (48 metabolites) in wheat under the stress

Outcome
related amino acid metabolism pathwayse2
Value
48 metabolitese2

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

e1

“Compared with SS wheat, ST wheat maintained higher root and shoot growth”

✓ located verbatim in the source · abstract, characters 889–961 · show in text ↑
e2

“related amino acid metabolism pathways (48 metabolites)”

✓ located verbatim in the source · abstract, characters 1399–1454 · show in text ↑
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

An amino acid metabolism-ion transport-glutathione metabolism module is the central regulatory network associated with stress tolerance in wheat

Outcome
stress tolerancee2
Qualifier
amino acid metabolism-ion transport-glutathione metabolism modulee2

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

e1

“Compared with SS wheat, ST wheat maintained higher root and shoot growth”

✓ located verbatim in the source · abstract, characters 889–961 · show in text ↑
e2

“the amino acid metabolism-ion transport-glutathione metabolism module represents the central regulatory network associated with stress tolerance”

✓ located verbatim in the source · abstract, characters 1498–1642 · show in text ↑

sodium sulfate · physiology: antioxidant enzymes · Triticum aestivum (wheat)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. negative
See all 2 papers →

sodium sulfate · growth · Triticum aestivum (wheat)Positive and negative results

6 papers: 2 positive, 4 negative or no effect

1 paper in the same direction as this paper · 4 in the opposite direction

  1. negative
  2. negative
  3. negative

2 papers more in this group

See all 6 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.