Abstract
The primary aim of the present study was to identify bacterial isolates with yield‐enhancing potential for application as biofertilisers in the cultivation of sweet potato. Therefore, endophytic and rhizospheric strains were isolated from sweet potato plantations in Hungary to identify bacterial strains with plant growth‐promoting and antifungal potential. In total, seven Bacillus licheniformis strains were identified and subjected to detailed ecophysiological investigations. Experiments have been conducted to investigate the tolerance of selected strains to different limiting factors such as pH, temperature, and water activity, which affect survivability in various agricultural environments. The majority of tested B. licheniformis strains exhibited plant growth‐promoting potential (e.g., production of indole‐3‐acetic acid up to 40.42 μ g mL −1 , production of ammonia up to 0.87 mg mL −1 , phosphorus solubilising activity, siderophore production), with two strains (SZMC 27713 and SZMC 27715) demonstrating inhibitory activity (ranging between 7% and 38%) against plant pathogenic fungi prevalent in sweet potato cultivation. Furthermore, strain SZMC 27715 induced accelerated germination and a significantly higher germination rate in tomato seeds compared to the control. In a field study, it was observed that strain SZMC 27715 had a potent yield enhancing effect in sweet potato, where a significant yield per plant increase was observed in all treatments (1.13, 1.09 and 1.40 kg) compared to the control plants (0.92 kg). The highest yield per plant was observed when the cuttings were soaked combined with two additional foliar treatments. To the best of our knowledge, this is the first report of the successful utilisation of the B. licheniformis strain as a biofertiliser for yield enhancement in sweet potato cultivation. Based on our results, strain SZMC 27715 has potential for application as a biofertiliser in sweet potato cultivation either as a standalone option or in a microbial consortium.
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Claims 11
Claim · model-written summary
B. licheniformis strains from sweet potato produced indole-3-acetic acid up to 40.42 μg/mL.
- Taxon
- Sweet Potato
_Flower.jpg?width=60)
Ipomoea batatast0 - Interactor
- B. licheniformis strains
Bacillus licheniformise1symbiont - Outcome
- production of indole‐3‐acetic acide1
- Value
- 40.42 μ g mL −1e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
t0“Isolated from Sweet Potato”
e1“The majority of tested B. licheniformis strains exhibited plant growth‐promoting potential (e.g., production of indole‐3‐acetic acid up to 40.42 μ g mL −1 , production of ammonia up to 0.87 mg mL −1 , phosphorus solubilising activity, siderophore production)”
Claim · model-written summary
B. licheniformis strains from sweet potato produced ammonia up to 0.87 mg/mL.
- Taxon
- Sweet PotatoIpomoea batatast0
- Interactor
- B. licheniformis strainsBacillus licheniformise1symbiont
- Outcome
- production of ammoniae1
- Value
- 0.87 mg mL −1e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Isolated from Sweet Potato”
e1“The majority of tested B. licheniformis strains exhibited plant growth‐promoting potential (e.g., production of indole‐3‐acetic acid up to 40.42 μ g mL −1 , production of ammonia up to 0.87 mg mL −1 , phosphorus solubilising activity, siderophore production)”
Claim · model-written summary
The majority of tested B. licheniformis strains from sweet potato showed plant growth-promoting potential.
- Taxon
- Sweet PotatoIpomoea batatast0
- Interactor
- B. licheniformis strainsBacillus licheniformise1symbiont
- Outcome
- plant growth‐promoting potentiale1
- Qualifier
- majority of testede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Isolated from Sweet Potato”
e1“The majority of tested B. licheniformis strains exhibited plant growth‐promoting potential (e.g., production of indole‐3‐acetic acid up to 40.42 μ g mL −1 , production of ammonia up to 0.87 mg mL −1 , phosphorus solubilising activity, siderophore production)”
Claim · model-written summary
B. licheniformis strains from sweet potato showed phosphorus solubilising activity and siderophore production.
- Taxon
- Sweet PotatoIpomoea batatast0
- Interactor
- B. licheniformis strainsBacillus licheniformise1symbiont
- Outcome
- phosphorus solubilising activity, siderophore productione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Isolated from Sweet Potato”
e1“The majority of tested B. licheniformis strains exhibited plant growth‐promoting potential (e.g., production of indole‐3‐acetic acid up to 40.42 μ g mL −1 , production of ammonia up to 0.87 mg mL −1 , phosphorus solubilising activity, siderophore production)”
Claim · model-written summary
Strains SZMC 27713 and SZMC 27715 showed 7% to 38% inhibitory activity against plant pathogenic fungi of sweet potato.
- Taxon
- sweet potatoIpomoea batatase1
- Interactor
- plant pathogenic fungie1pathogen
- Second interactor
- SZMC 27713 and SZMC 27715e1biocontrol_agent
- Outcome
- inhibitory activitye1
- Value
- 7% and 38%e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“with two strains (SZMC 27713 and SZMC 27715) demonstrating inhibitory activity (ranging between 7% and 38%) against plant pathogenic fungi prevalent in sweet potato cultivation”
Claim · model-written summary
Strain SZMC 27715 gave a significantly higher germination rate in tomato seeds than the control.
- Taxon
- tomato
Solanum lycopersicume1 - Treatment
- strain SZMC 27715e1
- Interactor
- strain SZMC 27715e1symbiont
- Outcome
- germination ratee1
- Direction
- highere1
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“strain SZMC 27715 induced accelerated germination and a significantly higher germination rate in tomato seeds compared to the control”
Claim · model-written summary
Strain SZMC 27715 induced accelerated germination of tomato seeds compared to the control.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- strain SZMC 27715e1
- Interactor
- strain SZMC 27715e1symbiont
- Outcome
- germinatione1
- Direction
- acceleratede1
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“strain SZMC 27715 induced accelerated germination and a significantly higher germination rate in tomato seeds compared to the control”
Claim · model-written summary
Strain SZMC 27715 significantly increased yield per plant of sweet potato in the field, to 1.13, 1.09 and 1.40 kg against 0.92 kg in control plants.
- Taxon
- sweet potatoIpomoea batatase1
- Treatment
- strain SZMC 27715e1
- Interactor
- strain SZMC 27715e1symbiont
- Outcome
- yield per plante1
- Direction
- increasee1
- Value
- 1.13, 1.09 and 1.40 kge1
- Qualifier
- 0.92 kge1
- Comparator
- control plantse1
- Setting
- field studye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In a field study, it was observed that strain SZMC 27715 had a potent yield enhancing effect in sweet potato, where a significant yield per plant increase was observed in all treatments (1.13, 1.09 and 1.40 kg) compared to the control plants (0.92 kg)”
Claim · model-written summary
Soaking cuttings combined with two additional foliar treatments gave the highest yield per plant of sweet potato.
- Taxon
- Sweet PotatoIpomoea batatast0
- Treatment
- cuttings were soaked combined with two additional foliar treatmentse1
- Outcome
- yield per plante1
- Direction
- higheste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Isolated from Sweet Potato”
e1“The highest yield per plant was observed when the cuttings were soaked combined with two additional foliar treatments”
Claim · model-written summary
Strain SZMC 27715 has potential for application as a biofertiliser in sweet potato cultivation.
- Taxon
- sweet potatoIpomoea batatase1
- Interactor
- strain SZMC 27715e1symbiont
- Outcome
- application as a biofertilisere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Based on our results, strain SZMC 27715 has potential for application as a biofertiliser in sweet potato cultivation either as a standalone option or in a microbial consortium”
Claim · model-written summary
Seven B. licheniformis strains were identified from sweet potato plantations.
- Taxon
- Sweet PotatoIpomoea batatast0
- Outcome
- seven Bacillus licheniformis strains were identifiede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Isolated from Sweet Potato”
e1“In total, seven Bacillus licheniformis strains were identified”
The same questions in other papers
application · yield · Ipomoea batatas (sweet potato)Positive and negative results
20 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- no effect
- no effect
20 papers more in this group
See all 24 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.