Paper · 2024 · Plant Stress

Exploring the impact of endophytic bacteria on mitigating salinity stress in Solanum lycopersicum L.

Tahira Younis; Sidra Rahman; Lubna Rahman; et al.

8
claims
14
verbatim quotes
15
citations
2
research areas
✓
Open access · cc-by-nc-nd

Abstract

In the era of climate change, plants are being compelled to adapt and endure progressively in unfavorable environments. Applying biostimulants to plants can improve their growth and resilience by mitigating the adverse effects of abiotic stresses. Endophytes are well-known for promoting plant growth and producing natural compounds. The current study focuses on the ability of endophytic bacteria to increase plant growth and reduce salt stress in tomato plants. Nine isolates from the stems of Fagonia indica and Ajuga bracteosa showed a variety of salt stress tolerances as well as solubilizing phosphate, indole acetic acid, ammonia production, siderophore production, and extracellular enzymes like protease, cellulase, and chitinase. Four Endophytic bacteria Enterobacter hormaechei (MOSEL-FLS1), Stenotrophomonas maltophilia (MOSEL-FLS2), Bacillus subtilis (MOSEL-S8), and Staphylococcus epidermidis (MOSEL-S9) were selected based on plant growth promoting traits and halotolerant assay. These endophytic bacteria were subjected to ex-situ activities to figure out their capacity to stimulate the growth of the tomato plant in the growth room under different concentrations of NaCl (50-200 mM). All bacterial strains stimulated tomato plant growth under salinity stress compared to uninoculated controls. Antioxidant enzymes (SOD and POD), chlorophyll, and proline level in the plants was increased after salt treatment. Moreover, the activity of antioxidant enzymes and their relative transcript levels were dependent on the concentration of salinity stress. These findings highlight the varied microbial community linked to medicinal plants and their capacity to promote plant growth, potentially mitigating salt stress through the regulation of osmolytes and antioxidant enzymes. This makes them promising contenders for biofertilizers.

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Claims 8

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

All bacterial strains stimulated tomato plant growth under salinity stress compared with uninoculated controls.

Treatment
endophytic bacteriae2
Interactor
endophytic bacteriae2symbiont
Outcome
plant growthe1
Direction
stimulatede1
Comparator
uninoculated controlse1
Setting
growth roome2

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Exploring the impact of endophytic bacteria on mitigating salinity stress in Solanum lycopersicum L.”

✓ located verbatim in the source · title, characters 0–100 · show in text ↑
e1

“All bacterial strains stimulated tomato plant growth under salinity stress compared to uninoculated controls”

✓ located verbatim in the source · abstract, characters 1202–1310 · show in text ↑
e2

“These endophytic bacteria were subjected to ex-situ activities to figure out their capacity to stimulate the growth of the tomato plant in the growth room under different concentrations of NaCl (50-200 mM)”

✓ located verbatim in the source · abstract, characters 995–1200 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Salt treatment increased antioxidant enzymes (SOD and POD), chlorophyll and proline levels in tomato plants.

Taxon
Solanum lycopersicumSolanum lycopersicumt0
Treatment
salt treatmente3
Outcome
Antioxidant enzymes (SOD and POD), chlorophyll, and proline levele3
Direction
increasede3

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Exploring the impact of endophytic bacteria on mitigating salinity stress in Solanum lycopersicum L.”

✓ located verbatim in the source · title, characters 0–100 · show in text ↑
e3

“Antioxidant enzymes (SOD and POD), chlorophyll, and proline level in the plants was increased after salt treatment”

✓ located verbatim in the source · abstract, characters 1312–1426 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

The activity of antioxidant enzymes and their relative transcript levels depend on the concentration of salinity stress.

Taxon
Solanum lycopersicumSolanum lycopersicumt0
Treatment
concentration of salinity stresse4
Outcome
the activity of antioxidant enzymes and their relative transcript levelse4

Not reportedDirection

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Exploring the impact of endophytic bacteria on mitigating salinity stress in Solanum lycopersicum L.”

✓ located verbatim in the source · title, characters 0–100 · show in text ↑
e4

“Moreover, the activity of antioxidant enzymes and their relative transcript levels were dependent on the concentration of salinity stress”

✓ located verbatim in the source · abstract, characters 1428–1565 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Nine isolates from Fagonia indica stems show a variety of salt stress tolerances.

Taxon
Fagonia indicaFagonia indicae5
Outcome
salt stress tolerancese5

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

Fagonia indica
Fagonia indica · TaxonForestowlet · CC0 · Wikimedia Commons ↗

Verbatim

e5

“Nine isolates from the stems of Fagonia indica and Ajuga bracteosa showed a variety of salt stress tolerances as well as solubilizing phosphate, indole acetic acid, ammonia production, siderophore production, and extracellular enzymes like protease, cellulase, and chitinase”

✓ located verbatim in the source · abstract, characters 464–738 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The Fagonia indica isolates solubilize phosphate, produce indole acetic acid and produce ammonia.

Taxon
Fagonia indicaFagonia indicae5
Outcome
solubilizing phosphate, indole acetic acid, ammonia productione5

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

Fagonia indica
Fagonia indica · TaxonForestowlet · CC0 · Wikimedia Commons ↗

Verbatim

e5

“Nine isolates from the stems of Fagonia indica and Ajuga bracteosa showed a variety of salt stress tolerances as well as solubilizing phosphate, indole acetic acid, ammonia production, siderophore production, and extracellular enzymes like protease, cellulase, and chitinase”

✓ located verbatim in the source · abstract, characters 464–738 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The Fagonia indica isolates produce siderophores and extracellular enzymes such as protease, cellulase and chitinase.

Taxon
Fagonia indicaFagonia indicae5
Outcome
siderophore production, and extracellular enzymes like protease, cellulase, and chitinasee5

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

Fagonia indica
Fagonia indica · TaxonForestowlet · CC0 · Wikimedia Commons ↗

Verbatim

e5

“Nine isolates from the stems of Fagonia indica and Ajuga bracteosa showed a variety of salt stress tolerances as well as solubilizing phosphate, indole acetic acid, ammonia production, siderophore production, and extracellular enzymes like protease, cellulase, and chitinase”

✓ located verbatim in the source · abstract, characters 464–738 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The endophytic bacteria are promising contenders for biofertilizers.

Taxon
Solanum lycopersicumSolanum lycopersicumt0
Outcome
promising contenders for biofertilizerse7

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Exploring the impact of endophytic bacteria on mitigating salinity stress in Solanum lycopersicum L.”

✓ located verbatim in the source · title, characters 0–100 · show in text ↑
e7

“This makes them promising contenders for biofertilizers.”

✓ located verbatim in the source · abstract, characters 1790–1846 · show in text ↑
Mechanismhypothesisoriginal resultbasis n/a

Claim · model-written summary

The endophytic bacteria may mitigate salt stress through regulation of osmolytes and antioxidant enzymes.

Taxon
Solanum lycopersicumSolanum lycopersicumt0
Outcome
mitigating salt stresse6
Qualifier
regulation of osmolytes and antioxidant enzymese6

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Exploring the impact of endophytic bacteria on mitigating salinity stress in Solanum lycopersicum L.”

✓ located verbatim in the source · title, characters 0–100 · show in text ↑
e6

“These findings highlight the varied microbial community linked to medicinal plants and their capacity to promote plant growth, potentially mitigating salt stress through the regulation of osmolytes and antioxidant enzymes.”

✓ located verbatim in the source · abstract, characters 1567–1789 · show in text ↑

inoculation · growth · Solanum lycopersicum (tomato)Positive and negative results

441 papers: 387 positive, 54 negative or no effect

386 papers in the same direction as this paper · 53 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
  2. positive
  3. no effect

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See all 441 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.