Abstract
ABSTRACT Passion fruit ( Passiflora edulis Sims ) is a popular fruit favored by consumers due to its unique taste and health properties around the world. Moreover, it serves as an important source of bioactive compounds, making it highly valuable for industrial exploitation. However, its growth and development are highly susceptible to cold stress, which can result in significant economic losses. Protection against abiotic stress is a significant function of the plant microbiota. In this work, we systematically evaluated the potential of the plant growth‐promoting bacterium (PGPB) Bacillus subtilis GUCC4, an endophyte isolated from healthy passion fruit leaves, to enhance the cold stress tolerance in passion fruit. The results demonstrated that inoculation with B. subtilis GUCC4 significantly enhances the cold tolerance of passion fruit. The strain was shown to rapidly colonize and migrate into both roots and leaves within 48 h of inoculation. Compared to the control, B. subtilis GUCC4 inoculation markedly enhanced total chlorophyll content, photosynthetic parameters, antioxidant enzyme activities, osmoregulatory substances, and phytohormone levels in passion fruit seedlings. Notably, B. subtilis GUCC4 upregulated genes associated with plant growth and transcription factors responsive to low‐temperature stress at 5°C. The mode of action is multifaceted and includes efficient colonization, growth promotion, hormone balancing, and stress protection. Overall, this study demonstrates that B. subtilis GUCC4 effectively mitigates the adverse effects of low‐temperature stress on passion fruit seedlings, offering a novel and promising strategy for enhancing plant resilience under adverse climate conditions.
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Claims 8
Claim · model-written summary
Bacillus inoculation significantly enhanced passion fruit cold tolerance.
- Taxon
- passion fruit
Passiflora edulise0 - Treatment
- inoculation with B. subtilis GUCC4e0
- Interactor
- B. subtilis GUCC4
Bacillus subtilise0symbiont - Outcome
- cold tolerancee0
- Direction
- enhancese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results demonstrated that inoculation with B. subtilis GUCC4 significantly enhances the cold tolerance of passion fruit.”
Claim · model-written summary
Bacillus rapidly colonized passion fruit roots and leaves within 48 hours.
- Taxon
- passion fruitPassiflora edulist0
- Treatment
- inoculatione0
- Interactor
- Bacillus subtilis GUCC4Bacillus subtilist0symbiont
- Outcome
- colonize and migrate into both roots and leavese0
- Value
- 48 he0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The strain was shown to rapidly colonize and migrate into both roots and leaves within 48 h of inoculation.”
t0“Bacillus subtilis GUCC4 Enhances Passion Fruit”
Claim · model-written summary
Bacillus inoculation increased passion fruit total chlorophyll content.
- Taxon
- passion fruitPassiflora edulise0
- Treatment
- B. subtilis GUCC4 inoculatione0
- Interactor
- B. subtilis GUCC4Bacillus subtilise0symbiont
- Outcome
- total chlorophyll contente0
- Direction
- enhancede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to the control, B. subtilis GUCC4 inoculation markedly enhanced total chlorophyll content, photosynthetic parameters, antioxidant enzyme activities, osmoregulatory substances, and phytohormone levels in passion fruit seedlings.”
Claim · model-written summary
Bacillus inoculation increased passion fruit photosynthetic parameters.
- Taxon
- passion fruitPassiflora edulise0
- Treatment
- B. subtilis GUCC4 inoculatione0
- Interactor
- B. subtilis GUCC4Bacillus subtilise0symbiont
- Outcome
- photosynthetic parameterse0
- Direction
- enhancede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to the control, B. subtilis GUCC4 inoculation markedly enhanced total chlorophyll content, photosynthetic parameters, antioxidant enzyme activities, osmoregulatory substances, and phytohormone levels in passion fruit seedlings.”
Claim · model-written summary
Bacillus inoculation increased passion fruit antioxidant enzyme activities.
- Taxon
- passion fruitPassiflora edulise0
- Treatment
- B. subtilis GUCC4 inoculatione0
- Interactor
- B. subtilis GUCC4Bacillus subtilise0symbiont
- Outcome
- antioxidant enzyme activitiese0
- Direction
- enhancede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to the control, B. subtilis GUCC4 inoculation markedly enhanced total chlorophyll content, photosynthetic parameters, antioxidant enzyme activities, osmoregulatory substances, and phytohormone levels in passion fruit seedlings.”
Claim · model-written summary
Bacillus inoculation increased passion fruit osmoregulatory substances.
- Taxon
- passion fruitPassiflora edulise0
- Treatment
- B. subtilis GUCC4 inoculatione0
- Interactor
- B. subtilis GUCC4Bacillus subtilise0symbiont
- Outcome
- osmoregulatory substancese0
- Direction
- enhancede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to the control, B. subtilis GUCC4 inoculation markedly enhanced total chlorophyll content, photosynthetic parameters, antioxidant enzyme activities, osmoregulatory substances, and phytohormone levels in passion fruit seedlings.”
Claim · model-written summary
Bacillus inoculation increased passion fruit phytohormone levels.
- Taxon
- passion fruitPassiflora edulise0
- Treatment
- B. subtilis GUCC4 inoculatione0
- Interactor
- B. subtilis GUCC4Bacillus subtilise0symbiont
- Outcome
- phytohormone levelse0
- Direction
- enhancede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to the control, B. subtilis GUCC4 inoculation markedly enhanced total chlorophyll content, photosynthetic parameters, antioxidant enzyme activities, osmoregulatory substances, and phytohormone levels in passion fruit seedlings.”
Claim · model-written summary
Bacillus upregulated growth and low-temperature-responsive genes at 5°C.
- Taxon
- passion fruitPassiflora edulist0
- Treatment
- B. subtilis GUCC4e0
- Interactor
- B. subtilis GUCC4Bacillus subtilise0symbiont
- Outcome
- genes associated with plant growth and transcription factors responsive to low‐temperature stresse0
- Direction
- upregulatede0
- Qualifier
- 5°Ce0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Notably, B. subtilis GUCC4 upregulated genes associated with plant growth and transcription factors responsive to low‐temperature stress at 5°C.”
t0“Passion Fruit”
The same questions in other papers
inoculation · physiology: pigments · Passiflora edulis (passion fruit)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.