Abstract
Tomatoes, a vital cash crop, are highly susceptible to postharvest soft rot caused by Pectobacterium carotovorum . Bio-synthesized silver nanoparticles (AgNPs), generated via a green synthesis approach, offer a promising strategy for managing postharvest diseases due to their potent antibacterial properties. In this study, the endophytic Burkholderia plantarii BpMS90 was shown to reduce silver ions to form AgNPs (Bp-AgNPs). These nanoparticles exhibited characteristic surface plasmon resonance peaks between 400–450 nm and had an average size of 78.04 ± 29.66 nm. In vitro assays revealed that Bp-AgNPs had a minimum inhibitory concentration of 0.625 ppm against P. carotovorum and demonstrated broad-spectrum antibacterial activity against six additional bacterial species. Microstructural analysis indicated that Bp-AgNPs inhibited P. carotovorum proliferation by compromising cellular integrity. Treatment with Bp-AgNPs significantly decreased the incidence of tomato soft rot and minimized postharvest weight loss. Additionally, 16S rRNA gene sequencing demonstrated that Bp-AgNPs preserved the relative diversity of endophytic bacterial communities in postharvest tomatoes, notably sustaining the relative abundance of Weissella species in comparison to diseased tomatoes. Metabolomic correlation analysis revealed that Weissella abundance was positively associated with L -phenylalanine, citric acid, and L -tryptophan levels, metabolites implicated in postharvest disease resistance. These findings highlight the potential of biosynthetic Bp-AgNPs as effective antimicrobial agents and support their application in sustainable postharvest disease management. • Silver nanoparticles synthesized using endophytic bacteria control tomato soft rot. • Nanoparticles disrupt bacterial cells and reduce post-harvest disease incidence. • Treatment preserves tomato quality by lowering rot and weight loss after harvest. • Beneficial bacterial population increased relatively after treatment, improving microbial community balance. • Disease resistance links to elevated L -phenylalanine, citric acid, and tryptophan.
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Claims 13
Claim · model-written summary
Burkholderia plantarii BpMS90 formed silver nanoparticles by reducing silver ions.
- Taxon
- Tomatoes
Solanum lycopersicume0 - Interactor
- Burkholderia plantarii BpMS90Burkholderia plantariie1symbiont
- Outcome
- reduce silver ions to form AgNPs (Bp-AgNPs)e1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomatoes, a vital cash crop”
e1“the endophytic Burkholderia plantarii BpMS90 was shown to reduce silver ions to form AgNPs (Bp-AgNPs)”
Claim · model-written summary
The resulting nanoparticles had surface plasmon resonance peaks between 400–450 nm.
- Taxon
- TomatoesSolanum lycopersicume0
- Outcome
- surface plasmon resonance peakse1
- Value
- 400–450 nme1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomatoes, a vital cash crop”
e1“These nanoparticles exhibited characteristic surface plasmon resonance peaks between 400–450 nm”
Claim · model-written summary
The nanoparticles had an average size of 78.04 ± 29.66 nm.
- Taxon
- TomatoesSolanum lycopersicume0
- Outcome
- average sizee1
- Value
- 78.04 ± 29.66 nme1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomatoes, a vital cash crop”
e1“had an average size of 78.04 ± 29.66 nm”
Claim · model-written summary
Bp-AgNPs had a minimum inhibitory concentration of 0.625 ppm against P. carotovorum.
- Taxon
- TomatoesSolanum lycopersicume0
- Interactor
- P. carotovorum
Pectobacterium carotovorume1pathogen - Outcome
- minimum inhibitory concentratione1
- Value
- 0.625 ppme1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomatoes, a vital cash crop”
e1“Bp-AgNPs had a minimum inhibitory concentration of 0.625 ppm against P. carotovorum”
Claim · model-written summary
Bp-AgNPs showed antibacterial activity against six additional bacterial species.
- Taxon
- TomatoesSolanum lycopersicume0
- Outcome
- broad-spectrum antibacterial activitye1
- Qualifier
- six additional bacterial speciese1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomatoes, a vital cash crop”
e1“demonstrated broad-spectrum antibacterial activity against six additional bacterial species”
Claim · model-written summary
Bp-AgNPs inhibited P. carotovorum proliferation by compromising cellular integrity.
- Taxon
- TomatoesSolanum lycopersicume0
- Treatment
- Bp-AgNPse1
- Interactor
- P. carotovorumPectobacterium carotovorume1pathogen
- Outcome
- P. carotovorum proliferatione1
- Direction
- inhibitede1
- Qualifier
- compromising cellular integritye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomatoes, a vital cash crop”
e1“Bp-AgNPs inhibited P. carotovorum proliferation by compromising cellular integrity”
Claim · model-written summary
Bp-AgNP treatment significantly decreased tomato soft rot incidence.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- Bp-AgNPse0
- Interactor
- Pectobacterium carotovorumPectobacterium carotovorume1pathogen
- Outcome
- incidence of tomato soft rote0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment with Bp-AgNPs significantly decreased the incidence of tomato soft rot”
e1“postharvest soft rot caused by Pectobacterium carotovorum”
Claim · model-written summary
Bp-AgNP treatment minimized postharvest tomato weight loss.
- Taxon
- tomatoesSolanum lycopersicume1
- Treatment
- Bp-AgNPse0
- Outcome
- postharvest weight losse0
- Direction
- minimizede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment with Bp-AgNPs significantly decreased the incidence of tomato soft rot and minimized postharvest weight loss”
e1“postharvest tomatoes”
Claim · model-written summary
Bp-AgNPs preserved relative diversity of endophytic bacterial communities in postharvest tomatoes versus diseased tomatoes.
- Taxon
- tomatoesSolanum lycopersicume0
- Treatment
- Bp-AgNPse0
- Outcome
- relative diversity of endophytic bacterial communitiese0
- Direction
- preservede0
- Comparator
- diseased tomatoese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bp-AgNPs preserved the relative diversity of endophytic bacterial communities in postharvest tomatoes, notably sustaining the relative abundance of Weissella species in comparison to diseased tomatoes”
Claim · model-written summary
Bp-AgNPs sustained relative abundance of Weissella species compared with diseased tomatoes.
- Taxon
- tomatoesSolanum lycopersicume0
- Treatment
- Bp-AgNPse0
- Outcome
- relative abundance of Weissella speciese0
- Direction
- sustaininge0
- Comparator
- diseased tomatoese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bp-AgNPs preserved the relative diversity of endophytic bacterial communities in postharvest tomatoes, notably sustaining the relative abundance of Weissella species in comparison to diseased tomatoes”
Claim · model-written summary
Weissella abundance was positively associated with L -phenylalanine levels.
- Taxon
- tomatoesSolanum lycopersicume0
- Outcome
- L -phenylalaninee1
- Direction
- positively associatede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“postharvest tomatoes”
e1“Weissella abundance was positively associated with L -phenylalanine, citric acid, and L -tryptophan levels”
Claim · model-written summary
Weissella abundance was positively associated with citric acid levels.
- Taxon
- tomatoesSolanum lycopersicume0
- Outcome
- citric acide1
- Direction
- positively associatede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“postharvest tomatoes”
e1“Weissella abundance was positively associated with L -phenylalanine, citric acid, and L -tryptophan levels”
Claim · model-written summary
Weissella abundance was positively associated with L -tryptophan levels.
- Taxon
- tomatoesSolanum lycopersicume0
- Outcome
- L -tryptophan levelse1
- Direction
- positively associatede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“postharvest tomatoes”
e1“Weissella abundance was positively associated with L -phenylalanine, citric acid, and L -tryptophan levels”
The same questions in other papers
silver nanoparticle · soil: biology · Solanum lycopersicum (tomato)Positive and negative results
1 in the opposite direction
- no effect
silver ion · quality: postharvest · Solanum lycopersicum (tomato)Positive and negative results
1 in the opposite direction
- negative
silver nanoparticle · quality: postharvest · Solanum lycopersicum (tomato)Results agree
1 paper in the same direction as this paper
- 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.