Paper · 2021 · Biocontrol Science

Effect of Metabolites Produced by Bacillus atrophaeus and Brevibacterium frigoritolerans Strains on Postharvest Biocontrol of Alternaria alternata in Tomato (Solanum lycopersicum L.)

ALEJANDRA CHACÓN-LÓPEZ; LIZETH GUARDADO-VALDIVIA; MIRIAM BAÑUELOS-GONZÁLEZ; et al.

4
claims
8
verbatim quotes
8
citations
2
research areas
✓
Open access

Abstract

In the present study, the antifungal activity of metabolites produced by Bacillus atrophaeus B5 and a new Brevibacterium strain against Alternaria alternata was evaluated. Assays in vitro and in vivo on tomato fruit during postharvest were made. Based on the 16S rDNA gene sequence analysis, the new strain (strain B7) was identified as Brevibacterium frigoritolerans. Metabolites produced by both bacterial strains reduced the spore germination of A. alternata in vitro and decreased the severity of the alternaria rot disease on tomato fruit during postharvest. This is the first report that demonstrates the potential of B. frigoritolerans B7 as a biocontrol agent against this fungal phytopathogen. The use of metabolites produced by B. atrophaeus B5 and B. frigoritolerans B7 represents a new approach to reduce the use of chemical pesticides and control fungal decay during the postharvest stage.

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The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 4

Observationobservedoriginal resultmeasured

Claim · model-written summary

Strain B7 was identified as Brevibacterium frigoritolerans.

Interactor
Brevibacterium frigoritoleransPeribacillus frigoritoleranse0biocontrol_agent
Outcome
identified as Brevibacterium frigoritoleranse0

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 new strain (strain B7) was identified as Brevibacterium frigoritolerans”

✓ located verbatim in the source · abstract, characters 292–367 · show in text ↑
t0

“Tomato”

✓ located verbatim in the source · title, characters 150–156 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Metabolites of both bacterial strains reduced A. alternata spore germination in vitro.

Treatment
Metabolites produced by both bacterial strainse0
Interactor
A. alternataAlternaria alternatae0pathogen
Outcome
spore germination of A. alternatae0
Direction
reducede0

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 ↗
Alternaria alternata
Alternaria alternata · Interactor · picture from its Wikimedia Commons categoryMarta Hiromi Taniwaki, Secretaria de Agricultura e Abastecimento · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Metabolites produced by both bacterial strains reduced the spore germination of A. alternata in vitro”

✓ located verbatim in the source · abstract, characters 369–470 · show in text ↑
t0

“tomato”

✓ located after whitespace/quote normalisation · title, characters 150–156 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Bacterial metabolites decreased Alternaria rot severity in postharvest tomato fruit.

Organ / stage
fruite0
Treatment
Metabolitest0
Outcome
severity of the alternaria rot diseasee0
Direction
decreasede0

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

“decreased the severity of the alternaria rot disease on tomato fruit during postharvest”

✓ located verbatim in the source · abstract, characters 475–562 · show in text ↑
t0

“Metabolites Produced by Bacillus atrophaeus and Brevibacterium frigoritolerans Strains on Postharvest Biocontrol of Alternaria alternata in Tomato”

✓ located verbatim in the source · title, characters 10–156 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The authors propose using these metabolites to control postharvest fungal decay and reduce chemical pesticide use.

Outcome
reduce the use of chemical pesticides and control fungal decay during the postharvest stagee0

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 use of metabolites produced by B. atrophaeus B5 and B. frigoritolerans B7 represents a new approach to reduce the use of chemical pesticides and control fungal decay during the postharvest stage”

✓ located verbatim in the source · abstract, characters 703–901 · show in text ↑
t0

“Tomato”

✓ located verbatim in the source · title, characters 150–156 · show in text ↑

metabolite · disease · Solanum lycopersicum (tomato)Results agree

5 papers: 5 positive, 0 negative or no effect

4 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

1 paper more in this group

See all 5 papers →

inoculation · Alternaria alternata · Solanum lycopersicum (tomato)Positive and negative results

6 papers: 5 positive, 1 negative or no effect

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

  1. negative
  2. positive
  3. positive

2 papers more in this group

See all 6 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.