Paper · 2021 · Agriculture

Isolation and Characterization of Plant Growth-Promoting Compost Bacteria That Improved Physiological Characteristics in Tomato and Lettuce Seedlings

Betsie Martínez-Cano; Juan Fernando García-Trejo; Arantza Elena Sánchez-Gutiérrez; et al.

6
claims
11
verbatim quotes
12
citations
2
research areas
✓
Open access · cc-by

Abstract

Currently, agricultural systems are inadequate to meet the demand of the population, coupled with the constant degradation of natural resources. Therefore, it is necessary to explore alternatives to increase the productivity and quality of crops with minimal environmental impact. The use of plant growth-promoting bacteria can provide solutions to some agri-environmental problems and replace or minimize conventional agricultural practices. In this study, a Bacillus pumilus strain with plant growth-promoting properties was isolated from mature compost. In vitro, the ability of Bacillus pumilus to solubilize phosphate, inhibit the growth of phytopathogenic fungi, and its effect on the germination of tomato and lettuce seeds was evaluated. In vivo, its effect on stem thickness, height, and the number of leaves of tomato and lettuce seedlings was studied. The results show that, in vitro, Bacillus pumilus solubilizes phosphate, inhibits the growth of the fungus Fusarium oxysporum, and increases the germination percentage of tomato seeds. The results, in vivo, demonstrate that the bacteria increases the stem thickness of tomato seedlings, while, in lettuce, it increases the stem thickness and the number of leaves. The outcome implies that Bacillus pumilus has properties as a plant growth promoter and can be used as a promising inoculant to enhance the growth of tomato and lettuce seedlings.

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

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Claims 6

Observationobservedoriginal resultmeasured

Claim · model-written summary

Bacillus pumilus solubilized phosphate in vitro.

Taxon
tomato and lettuce seedlingsSolanum lycopersicumLactuca sativat0
Interactor
Bacillus pumilusBacillus pumiluse0symbiont
Outcome
solubilizes phosphatee0

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 ↗
Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“in vitro, Bacillus pumilus solubilizes phosphate”

✓ located verbatim in the source · abstract, characters 886–934 · show in text ↑
t0

“Tomato and Lettuce Seedlings”

✓ located verbatim in the source · title, characters 121–149 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Bacillus pumilus inhibited Fusarium oxysporum growth in vitro.

Taxon
Tomato and Lettuce SeedlingsSolanum lycopersicumLactuca sativat0
Interactor
Fusarium oxysporumFusarium oxysporume0pathogen
Second interactor
Bacillus pumilusBacillus pumiluse0biocontrol_agent
Outcome
growth of the fungus Fusarium oxysporume0

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 ↗
Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗
Fusarium oxysporum
Fusarium oxysporum · InteractorClemson University - USDA Cooperative Extension Slide Series · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Bacillus pumilus solubilizes phosphate, inhibits the growth of the fungus Fusarium oxysporum”

✓ located verbatim in the source · abstract, characters 896–988 · show in text ↑
t0

“Tomato and Lettuce Seedlings”

✓ located verbatim in the source · title, characters 121–149 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Bacillus pumilus increased tomato seed germination percentage.

Treatment
Bacillus pumiluse1
Interactor
Bacillus pumilusBacillus pumiluse1symbiont
Outcome
germination percentage of tomato seedse0
Direction
increasese0

Not reportedComparator

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

e0

“increases the germination percentage of tomato seeds”

✓ located verbatim in the source · abstract, characters 994–1046 · show in text ↑
e1

“Bacillus pumilus solubilizes phosphate”

✓ located verbatim in the source · abstract, characters 896–934 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Bacillus pumilus increased tomato seedling stem thickness.

Treatment
Bacillus pumiluse1
Interactor
Bacillus pumilusBacillus pumiluse1symbiont
Outcome
stem thicknesse0
Direction
increasese0

Not reportedComparator

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

e0

“the bacteria increases the stem thickness of tomato seedlings”

✓ located verbatim in the source · abstract, characters 1087–1148 · show in text ↑
e1

“Bacillus pumilus solubilizes phosphate”

✓ located verbatim in the source · abstract, characters 896–934 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Bacillus pumilus increased lettuce seedling stem thickness and leaf number.

Taxon
lettuceLactuca sativae0
Treatment
Bacillus pumiluse1
Interactor
Bacillus pumilusBacillus pumiluse1symbiont
Outcome
stem thickness and the number of leavese0
Direction
increasese0

Not reportedComparator

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“in lettuce, it increases the stem thickness and the number of leaves”

✓ located verbatim in the source · abstract, characters 1157–1225 · show in text ↑
e1

“Bacillus pumilus solubilizes phosphate”

✓ located verbatim in the source · abstract, characters 896–934 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors identify Bacillus pumilus as a promising inoculant for tomato and lettuce seedlings.

Taxon
tomato and lettuce seedlingsSolanum lycopersicumLactuca sativae0
Interactor
Bacillus pumilusBacillus pumiluse0symbiont
Outcome
promising inoculant to enhance the growth of tomato and lettuce seedlingse0

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 ↗
Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“Bacillus pumilus has properties as a plant growth promoter and can be used as a promising inoculant to enhance the growth of tomato and lettuce seedlings”

✓ located verbatim in the source · abstract, characters 1252–1405 · show in text ↑

Bacillus pumilus · growth · Solanum lycopersicum (tomato)Positive and negative results

10 papers: 9 positive, 1 negative or no effect

8 papers in the same direction as this paper · 1 in the opposite direction

  1. positive
  2. positive
  3. no effect

6 papers more in this group

See all 10 papers →

Bacillus pumilus · growth · Lactuca sativa (garden lettuce)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 →

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.