Paper · 2025 · Scientific Reports

Inoculation of wheat seeds with spore-forming bacteria as a novel approach to enhance growth under climate change-induced stress conditions

Shafiqullah Aryan; Safiullah Habibi; Shin-ichiro Agake; et al.

4
claims
7
verbatim quotes
2
citations
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research areas
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Open access · cc-by-nc-nd

Abstract

Spore-forming bacteria (SFB) survive various environmental stress conditions by transforming into dormant endospores. In this study, we isolated 243 strains of SFB from the roots and rhizosphere soils of crops. The 16 S rRNA sequences of the selected 62 isolates identified Bacillus (45%), Priestia (31%), and Paenibacillus (24%). These Priestia and Paenibacillus isolates showed the capability for P solubilization, Priestia strains were capable of K solubilization and exhibited higher indole-3-acetic acid, while Bacillus strains showed strong siderophore production. Whole genome analysis of isolates, TTREn1 and TC-CSREp1, classified them as Priestia aryabhattai and Paenibacillus sp. Inoculation of wheat seedlings with the spores of 13 selected isolates improved shoot and root biomass under control and stress conditions (heat and drought) compared to uninoculated controls. Bacillus species, which showed higher biofilm formation among the three genera, colonized roots endophytically when inoculated as spores under drought stress, whereas the other isolates tested did not. Furthermore, spore inoculation modulated the expression of stress-related genes such as APX, CAT, and P5CS, with strong induction observed under heat stress and suppression under drought stress in most isolates. Our findings demonstrate the potential efficacy of spore inoculation in enhancing wheat plant growth resilience under heat and drought stress conditions.

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Claims 4

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Spore inoculation improved wheat shoot and root biomass under control, heat and drought conditions versus uninoculated controls.

Treatment
spores of 13 selected isolatese0
Interactor
13 selected isolatese0symbiont
Outcome
shoot and root biomasse0
Direction
improvede0
Qualifier
heat and droughte0
Comparator
uninoculated controlse0

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

“Inoculation of wheat seedlings with the spores of 13 selected isolates improved shoot and root biomass under control and stress conditions (heat and drought) compared to uninoculated controls”

✓ located verbatim in the source · abstract, characters 690–881 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Bacillus species colonized wheat roots endophytically under drought when applied as spores, unlike other tested isolates.

Treatment
inoculated as sporese0
Interactor
Bacillus speciese0symbiont
Outcome
colonized roots endophyticallye0
Qualifier
under drought stresse0
Comparator
the other isolates testede0

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

“Bacillus species, which showed higher biofilm formation among the three genera, colonized roots endophytically when inoculated as spores under drought stress, whereas the other isolates tested did not”

✓ located verbatim in the source · abstract, characters 883–1083 · show in text ↑
t0

“wheat”

✓ located verbatim in the source · title, characters 15–20 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Spore inoculation strongly induced stress-related genes under heat stress in most isolates.

Treatment
spore inoculatione0
Outcome
expression of stress-related genes such as APX, CAT, and P5CSe0
Direction
strong inductione0
Qualifier
under heat stresse0

Not reportedComparator

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

“spore inoculation modulated the expression of stress-related genes such as APX, CAT, and P5CS, with strong induction observed under heat stress and suppression under drought stress in most isolates”

✓ located verbatim in the source · abstract, characters 1098–1295 · show in text ↑
t0

“wheat”

✓ located verbatim in the source · title, characters 15–20 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Spore inoculation suppressed stress-related gene expression under drought stress in most isolates.

Treatment
spore inoculatione0
Outcome
expression of stress-related genes such as APX, CAT, and P5CSe0
Direction
suppressione0
Qualifier
under drought stress in most isolatese0

Not reportedComparator

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

“spore inoculation modulated the expression of stress-related genes such as APX, CAT, and P5CS, with strong induction observed under heat stress and suppression under drought stress in most isolates”

✓ located verbatim in the source · abstract, characters 1098–1295 · show in text ↑
t0

“wheat”

✓ located verbatim in the source · title, characters 15–20 · show in text ↑

inoculation · molecular: expression · Triticum aestivum (wheat)Positive and negative results

47 papers: 38 positive, 9 negative or no effect

37 papers in the same direction as this paper · 9 in the opposite direction

  1. positive
  2. no effect
  3. no effect

43 papers more in this group

See all 47 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.