Paper · 2025 · Journal of Fungi

Transcriptomic and Metabolomic Insights into the Effects of Arbuscular Mycorrhizal Fungi on Root Vegetative Growth and Saline–Alkali Stress Response in Oat (Avena sativa L.)

Xingzhe Wang; Xiaodan Ma; Senyuan Wang; et al.

17
claims
45
verbatim quotes
3
citations
3
research areas
✓
Open access · cc-by

Abstract

Soil salinization limits the growth of agricultural crops in the world, requiring the use of methods to increase the tolerance of agricultural crops to salinity–alkali stress. Arbuscular mycorrhizal fungi (AMF) enhance plant stress adaptation through symbiosis and offer a promising strategy for remediation. However, in non-model crops such as oat (Avena sativa L.), research has mainly focused on physiological assessments, while the key genes and metabolic pathways involved in AMF-mediated growth and saline–alkali tolerance remain unclear. In this study, we employed integrated multi-omics and physiological analyses to explore the regulatory mechanisms of AMF in oats under normal and saline–alkali stress. The results indicated that AMF symbiosis significantly promoted oat growth and physiological performance under both normal and saline–alkali stress conditions. Compared to the non-inoculated group under normal conditions, AMF increased plant height and biomass by 8.5% and 15.3%, respectively. Under saline–alkali stress, AMF enhanced SPAD value and relative water content by 16.7% and 7.3%, reduced MDA content by 35.8%, increased soluble protein by 21.8%, and decreased proline by 13.3%. In addition, antioxidant enzyme activities (SOD, POD, and CAT) were elevated by 18.4%, 18.2%, and 14.8%, respectively. Transcriptomic analysis revealed that AMF colonization under saline–alkali stress induced about twice as many differentially expressed genes (DEGs) as under non-saline–alkali stressed conditions. These DEGs were primarily associated with Environmental Information Processing, Genetic Information Processing, and Metabolic Processes. According to metabolomic analysis, a total of 573 metabolites were identified across treatments, mainly comprising lipids (29.3%), organic compounds (36.8%), and secondary metabolites (21.5%). Integrated multi-omics analysis indicated that AMF optimized energy utilization and antioxidant defense by enhancing phenylpropanoid biosynthesis and amino acid metabolism pathways. This study provides new insights into how AMF may enhance oat growth and tolerance to saline–alkali stress.

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

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Claims 17

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Under normal conditions, AMF increased oat plant height relative to the non-inoculated group.

Treatment
AMFe2
Interactor
Arbuscular mycorrhizal fungi (AMF)e1symbiont
Outcome
plant heighte2
Direction
increasede2
Value
8.5%e2
Qualifier
under normal conditionse2
Comparator
non-inoculated groupe2

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

Avena sativa
Avena sativa · TaxonSendelbach ( talk ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in non-model crops such as oat (Avena sativa L.)”

✓ located verbatim in the source · abstract, characters 318–366 · show in text ↑
e1

“Arbuscular mycorrhizal fungi (AMF) enhance plant stress adaptation through symbiosis”

✓ located verbatim in the source · abstract, characters 176–260 · show in text ↑
e2

“Compared to the non-inoculated group under normal conditions, AMF increased plant height and biomass by 8.5% and 15.3%, respectively”

✓ located verbatim in the source · abstract, characters 873–1005 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Under normal conditions, AMF increased oat biomass relative to the non-inoculated group.

Treatment
AMFe2
Interactor
Arbuscular mycorrhizal fungi (AMF)e1symbiont
Outcome
biomasse2
Direction
increasede2
Value
15.3%e2
Qualifier
under normal conditionse2
Comparator
non-inoculated groupe2

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

Avena sativa
Avena sativa · TaxonSendelbach ( talk ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in non-model crops such as oat (Avena sativa L.)”

✓ located verbatim in the source · abstract, characters 318–366 · show in text ↑
e1

“Arbuscular mycorrhizal fungi (AMF) enhance plant stress adaptation through symbiosis”

✓ located verbatim in the source · abstract, characters 176–260 · show in text ↑
e2

“Compared to the non-inoculated group under normal conditions, AMF increased plant height and biomass by 8.5% and 15.3%, respectively”

✓ located verbatim in the source · abstract, characters 873–1005 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Under saline-alkali stress, AMF enhanced the SPAD value of oat.

Treatment
AMFe3
Interactor
Arbuscular mycorrhizal fungi (AMF)e1symbiont
Outcome
SPAD valuee3
Direction
enhancede3
Value
16.7%e3
Qualifier
Under saline–alkali stresse3

Not reportedComparator

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

Avena sativa
Avena sativa · TaxonSendelbach ( talk ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in non-model crops such as oat (Avena sativa L.)”

✓ located verbatim in the source · abstract, characters 318–366 · show in text ↑
e1

“Arbuscular mycorrhizal fungi (AMF) enhance plant stress adaptation through symbiosis”

✓ located verbatim in the source · abstract, characters 176–260 · show in text ↑
e3

“Under saline–alkali stress, AMF enhanced SPAD value and relative water content by 16.7% and 7.3%, reduced MDA content by 35.8%, increased soluble protein by 21.8%, and decreased proline by 13.3%”

✓ located verbatim in the source · abstract, characters 1007–1201 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Under saline-alkali stress, AMF enhanced the relative water content of oat.

Treatment
AMFe3
Interactor
Arbuscular mycorrhizal fungi (AMF)e1symbiont
Outcome
relative water contente3
Direction
enhancede3
Value
7.3%e3
Qualifier
Under saline–alkali stresse3

Not reportedComparator

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

Avena sativa
Avena sativa · TaxonSendelbach ( talk ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in non-model crops such as oat (Avena sativa L.)”

✓ located verbatim in the source · abstract, characters 318–366 · show in text ↑
e1

“Arbuscular mycorrhizal fungi (AMF) enhance plant stress adaptation through symbiosis”

✓ located verbatim in the source · abstract, characters 176–260 · show in text ↑
e3

“Under saline–alkali stress, AMF enhanced SPAD value and relative water content by 16.7% and 7.3%, reduced MDA content by 35.8%, increased soluble protein by 21.8%, and decreased proline by 13.3%”

✓ located verbatim in the source · abstract, characters 1007–1201 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Under saline-alkali stress, AMF reduced MDA content in oat.

Treatment
AMFe3
Interactor
Arbuscular mycorrhizal fungi (AMF)e1symbiont
Outcome
MDA contente3
Direction
reducede3
Value
35.8%e3
Qualifier
Under saline–alkali stresse3

Not reportedComparator

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

Avena sativa
Avena sativa · TaxonSendelbach ( talk ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in non-model crops such as oat (Avena sativa L.)”

✓ located verbatim in the source · abstract, characters 318–366 · show in text ↑
e1

“Arbuscular mycorrhizal fungi (AMF) enhance plant stress adaptation through symbiosis”

✓ located verbatim in the source · abstract, characters 176–260 · show in text ↑
e3

“Under saline–alkali stress, AMF enhanced SPAD value and relative water content by 16.7% and 7.3%, reduced MDA content by 35.8%, increased soluble protein by 21.8%, and decreased proline by 13.3%”

✓ located verbatim in the source · abstract, characters 1007–1201 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Under saline-alkali stress, AMF increased soluble protein in oat.

Treatment
AMFe3
Interactor
Arbuscular mycorrhizal fungi (AMF)e1symbiont
Outcome
soluble proteine3
Direction
increasede3
Value
21.8%e3
Qualifier
Under saline–alkali stresse3

Not reportedComparator

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

Avena sativa
Avena sativa · TaxonSendelbach ( talk ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in non-model crops such as oat (Avena sativa L.)”

✓ located verbatim in the source · abstract, characters 318–366 · show in text ↑
e1

“Arbuscular mycorrhizal fungi (AMF) enhance plant stress adaptation through symbiosis”

✓ located verbatim in the source · abstract, characters 176–260 · show in text ↑
e3

“Under saline–alkali stress, AMF enhanced SPAD value and relative water content by 16.7% and 7.3%, reduced MDA content by 35.8%, increased soluble protein by 21.8%, and decreased proline by 13.3%”

✓ located verbatim in the source · abstract, characters 1007–1201 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Under saline-alkali stress, AMF decreased proline in oat.

Treatment
AMFe3
Interactor
Arbuscular mycorrhizal fungi (AMF)e1symbiont
Outcome
prolinee3
Direction
decreasede3
Value
13.3%e3
Qualifier
Under saline–alkali stresse3

Not reportedComparator

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

Avena sativa
Avena sativa · TaxonSendelbach ( talk ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in non-model crops such as oat (Avena sativa L.)”

✓ located verbatim in the source · abstract, characters 318–366 · show in text ↑
e1

“Arbuscular mycorrhizal fungi (AMF) enhance plant stress adaptation through symbiosis”

✓ located verbatim in the source · abstract, characters 176–260 · show in text ↑
e3

“Under saline–alkali stress, AMF enhanced SPAD value and relative water content by 16.7% and 7.3%, reduced MDA content by 35.8%, increased soluble protein by 21.8%, and decreased proline by 13.3%”

✓ located verbatim in the source · abstract, characters 1007–1201 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

AMF elevated SOD activity in oat.

Treatment
AMFe1
Interactor
Arbuscular mycorrhizal fungi (AMF)e1symbiont
Gene
SODe4
Outcome
antioxidant enzyme activitiese4
Direction
elevatede4
Value
18.4%e4

Not reportedComparator

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

Avena sativa
Avena sativa · TaxonSendelbach ( talk ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in non-model crops such as oat (Avena sativa L.)”

✓ located verbatim in the source · abstract, characters 318–366 · show in text ↑
e1

“Arbuscular mycorrhizal fungi (AMF) enhance plant stress adaptation through symbiosis”

✓ located verbatim in the source · abstract, characters 176–260 · show in text ↑
e4

“antioxidant enzyme activities (SOD, POD, and CAT) were elevated by 18.4%, 18.2%, and 14.8%, respectively”

✓ located verbatim in the source · abstract, characters 1216–1320 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

AMF elevated POD activity in oat.

Treatment
AMFe1
Interactor
Arbuscular mycorrhizal fungi (AMF)e1symbiont
Gene
PODe4
Outcome
antioxidant enzyme activitiese4
Direction
elevatede4
Value
18.2%e4

Not reportedComparator

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

Avena sativa
Avena sativa · TaxonSendelbach ( talk ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in non-model crops such as oat (Avena sativa L.)”

✓ located verbatim in the source · abstract, characters 318–366 · show in text ↑
e1

“Arbuscular mycorrhizal fungi (AMF) enhance plant stress adaptation through symbiosis”

✓ located verbatim in the source · abstract, characters 176–260 · show in text ↑
e4

“antioxidant enzyme activities (SOD, POD, and CAT) were elevated by 18.4%, 18.2%, and 14.8%, respectively”

✓ located verbatim in the source · abstract, characters 1216–1320 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

AMF elevated CAT activity in oat.

Treatment
AMFe1
Interactor
Arbuscular mycorrhizal fungi (AMF)e1symbiont
Gene
CATe4
Outcome
antioxidant enzyme activitiese4
Direction
elevatede4
Value
14.8%e4

Not reportedComparator

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

Avena sativa
Avena sativa · TaxonSendelbach ( talk ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in non-model crops such as oat (Avena sativa L.)”

✓ located verbatim in the source · abstract, characters 318–366 · show in text ↑
e1

“Arbuscular mycorrhizal fungi (AMF) enhance plant stress adaptation through symbiosis”

✓ located verbatim in the source · abstract, characters 176–260 · show in text ↑
e4

“antioxidant enzyme activities (SOD, POD, and CAT) were elevated by 18.4%, 18.2%, and 14.8%, respectively”

✓ located verbatim in the source · abstract, characters 1216–1320 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

AMF colonization under saline-alkali stress induced about twice as many DEGs as under non-saline-alkali conditions.

Treatment
AMF colonizatione5
Interactor
Arbuscular mycorrhizal fungi (AMF)e1symbiont
Outcome
differentially expressed genes (DEGs)e5
Direction
inducede5
Value
about twice as manye5
Qualifier
under saline–alkali stresse5
Comparator
non-saline–alkali stressed conditionse5

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

Avena sativa
Avena sativa · TaxonSendelbach ( talk ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in non-model crops such as oat (Avena sativa L.)”

✓ located verbatim in the source · abstract, characters 318–366 · show in text ↑
e1

“Arbuscular mycorrhizal fungi (AMF) enhance plant stress adaptation through symbiosis”

✓ located verbatim in the source · abstract, characters 176–260 · show in text ↑
e5

“AMF colonization under saline–alkali stress induced about twice as many differentially expressed genes (DEGs) as under non-saline–alkali stressed conditions”

✓ located verbatim in the source · abstract, characters 1360–1516 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The DEGs of oat under AMF were primarily associated with environmental information processing, genetic information processing and metabolic processes.

Outcome
DEGse6
Qualifier
primarily associated with Environmental Information Processing, Genetic Information Processing, and Metabolic Processese6

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

Avena sativa
Avena sativa · TaxonSendelbach ( talk ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in non-model crops such as oat (Avena sativa L.)”

✓ located verbatim in the source · abstract, characters 318–366 · show in text ↑
e6

“These DEGs were primarily associated with Environmental Information Processing, Genetic Information Processing, and Metabolic Processes. According to metabolomic analysis, a total of 573 metabolites were identified across treatments, mainly comprising lipids (29.3%), organic compounds (36.8%), and secondary metabolites (21.5%)”

✓ located verbatim in the source · abstract, characters 1518–1846 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

A total of 573 metabolites were identified in oat across treatments.

Outcome
metabolitese6
Value
573 metabolitese6
Qualifier
identified across treatmentse6

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

Avena sativa
Avena sativa · TaxonSendelbach ( talk ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in non-model crops such as oat (Avena sativa L.)”

✓ located verbatim in the source · abstract, characters 318–366 · show in text ↑
e6

“These DEGs were primarily associated with Environmental Information Processing, Genetic Information Processing, and Metabolic Processes. According to metabolomic analysis, a total of 573 metabolites were identified across treatments, mainly comprising lipids (29.3%), organic compounds (36.8%), and secondary metabolites (21.5%)”

✓ located verbatim in the source · abstract, characters 1518–1846 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Lipids made up 29.3% of the identified oat metabolites.

Outcome
lipidse6
Value
29.3%e6

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

Avena sativa
Avena sativa · TaxonSendelbach ( talk ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in non-model crops such as oat (Avena sativa L.)”

✓ located verbatim in the source · abstract, characters 318–366 · show in text ↑
e6

“These DEGs were primarily associated with Environmental Information Processing, Genetic Information Processing, and Metabolic Processes. According to metabolomic analysis, a total of 573 metabolites were identified across treatments, mainly comprising lipids (29.3%), organic compounds (36.8%), and secondary metabolites (21.5%)”

✓ located verbatim in the source · abstract, characters 1518–1846 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Organic compounds made up 36.8% of the identified oat metabolites.

Outcome
organic compoundse6
Value
36.8%e6

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

Avena sativa
Avena sativa · TaxonSendelbach ( talk ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in non-model crops such as oat (Avena sativa L.)”

✓ located verbatim in the source · abstract, characters 318–366 · show in text ↑
e6

“These DEGs were primarily associated with Environmental Information Processing, Genetic Information Processing, and Metabolic Processes. According to metabolomic analysis, a total of 573 metabolites were identified across treatments, mainly comprising lipids (29.3%), organic compounds (36.8%), and secondary metabolites (21.5%)”

✓ located verbatim in the source · abstract, characters 1518–1846 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Secondary metabolites made up 21.5% of the identified oat metabolites.

Outcome
secondary metabolitese6
Value
21.5%e6

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

Avena sativa
Avena sativa · TaxonSendelbach ( talk ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in non-model crops such as oat (Avena sativa L.)”

✓ located verbatim in the source · abstract, characters 318–366 · show in text ↑
e6

“These DEGs were primarily associated with Environmental Information Processing, Genetic Information Processing, and Metabolic Processes. According to metabolomic analysis, a total of 573 metabolites were identified across treatments, mainly comprising lipids (29.3%), organic compounds (36.8%), and secondary metabolites (21.5%)”

✓ located verbatim in the source · abstract, characters 1518–1846 · show in text ↑
Mechanismauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

AMF optimized energy utilization and antioxidant defense in oat by enhancing phenylpropanoid biosynthesis and amino acid metabolism pathways.

Interactor
AMFe7symbiont
Outcome
energy utilization and antioxidant defensee7
Qualifier
by enhancing phenylpropanoid biosynthesis and amino acid metabolism pathwayse7

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

Avena sativa
Avena sativa · TaxonSendelbach ( talk ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in non-model crops such as oat (Avena sativa L.)”

✓ located verbatim in the source · abstract, characters 318–366 · show in text ↑
e7

“Integrated multi-omics analysis indicated that AMF optimized energy utilization and antioxidant defense by enhancing phenylpropanoid biosynthesis and amino acid metabolism pathways”

✓ located verbatim in the source · abstract, characters 1848–2028 · show in text ↑

mycorrhiza · growth · Avena sativa (oats)Positive and negative results

6 papers: 4 positive, 2 negative or no effect

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

  1. positive
  2. no effect
  3. no effect

2 papers more in this group

See all 6 papers →

mycorrhiza · physiology: pigments · Avena sativa (oats)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

mycorrhiza · physiology: oxidative · Avena sativa (oats)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

mycorrhiza · soil: biology · Avena sativa (oats)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 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.