Abstract
Abstract Background The emergence of the guava root-knot nematode ( Meloidogyne enterolobii ) poses a significant threat to tomato yields globally. This study evaluated the impact of collagen and chitin soil amendments on soil microbial composition and function (fungal and bacterial communities) and their effects on tomato plant health and M. enterolobii infection under standard (5000 eggs plant −1 ) and high (50,000 eggs plant −1 ) inoculum pressure. Conducted in a greenhouse setting, the study investigated the effectiveness of these amendments in nurturing beneficial microbial communities across both native and agricultural soils. Results Both collagen and chitin were effective in reducing nematode egg counts by up to 66% and 84% under standard and high inoculum pressure, respectively, and enhanced plant health parameters (biomass and chlorophyll content). Moreover, a microbiome shift led to an increase in bacterial ( Kitasatospora , Bacillus , and Streptomyces ) and fungal ( Phialemonium ) genera, known for their chitinase, collagenase, and plant-parasitic nematode control. Among the microbes, Streptomyces spp. were found among the core microbiome and associated with a lower disease incidence assessed through a phenotype-OTU network analysis (PhONA). Under standard inoculum, higher metabolite expression was observed with amino acids representing a majority among the metabolite groups. Conclusions The findings highlight the potential of collagen and chitin to mitigate M. enterolobii infection by fostering beneficial soil microbial communities.
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Claims 6
Claim · model-written summary
Collagen and chitin soil amendments reduced Meloidogyne enterolobii egg counts on tomato by up to 66% under standard and 84% under high inoculum pressure.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- collagen and chitine1
- Interactor
- Meloidogyne enterolobii
_5384315.jpg?width=60)
Meloidogyne enterolobiit0pathogen - Outcome
- nematode egg countse1
- Direction
- reducinge1
- Value
- 66% and 84%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_5384315.jpg?width=500)
Verbatim
t0“Meloidogyne enterolobii”
e0“tomato plant health”
e1“Both collagen and chitin were effective in reducing nematode egg counts by up to 66% and 84% under standard and high inoculum pressure, respectively”
Claim · model-written summary
Collagen and chitin amendments enhanced tomato plant health parameters, namely biomass and chlorophyll content.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- collagen and chitine1
- Outcome
- biomass and chlorophyll contente1
- Direction
- enhancede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato plant health”
e1“Both collagen and chitin were effective in reducing nematode egg counts by up to 66% and 84% under standard and high inoculum pressure, respectively, and enhanced plant health parameters (biomass and chlorophyll content)”
Claim · model-written summary
A soil microbiome shift increased the bacterial genera Kitasatospora, Bacillus and Streptomyces and the fungal genus Phialemonium.
- Outcome
- bacterial ( Kitasatospora , Bacillus , and Streptomyces ) and fungal ( Phialemonium ) generae0
- Direction
- increasee0
Not reportedTaxon
Verbatim
e0“a microbiome shift led to an increase in bacterial ( Kitasatospora , Bacillus , and Streptomyces ) and fungal ( Phialemonium ) genera”
Claim · model-written summary
Streptomyces spp. were found among the core microbiome.
- Taxon
- Streptomyces spp.
Streptomycese0 - Outcome
- core microbiomee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Streptomyces spp. were found among the core microbiome”
Claim · model-written summary
Streptomyces spp. abundance was associated with lower disease incidence in a phenotype-OTU network analysis.
- Taxon
- Streptomyces spp.Streptomycese0
- Interactor
- Streptomyces spp.Streptomycese0other
- Outcome
- disease incidencee1
- Direction
- lowere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Streptomyces spp.”
e1“associated with a lower disease incidence”
Claim · model-written summary
Under standard inoculum, metabolite expression was higher, with amino acids forming the majority of metabolite groups.
Not reportedTaxon
Verbatim
e0“Under standard inoculum, higher metabolite expression was observed with amino acids representing a majority among the metabolite groups”
The same questions in other papers
resistance inducer · Meloidogyne enterolobii · Solanum lycopersicum (tomato)Results agree
1 paper in the same direction as this paper
- positive
resistance inducer · physiology: pigments · 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.