Abstract
Ralstonia solanacearum is one of the most destructive pathogens of vegetables causing very important economic losses. In 2019, 20 strains of R. solanacearum were collected from potato tubers in Morocco. After their identification, the inhibitory effect of colloidal solutions of chitin and/or chitosan was evaluated in vitro on a solid medium (Mueller Hinton) supplemented with these biopolymers. The concentrations (25, 50, or 100 mg L-1) contributed to significant inhibition of the growth of the isolated strains that led to an inhibition of 45.04% with the combination of chitin-chitosan (100 mg L-1), 58.92% with the addition of 100 mg L-1 of chitin, and 68.74% in the presence of chitosan at 25 mg L-1. Likewise, in experiments with Solanum lycopersicum L. seedlings, chitin derivatives significantly promoted stem and root growth. Stem length increased by 54.95% when chitin was added at 25 mg L-1, while soil amendment with 100 mg L-1 of chitosan increased root length by 82.55% compared to the control. The severity of bacterial wilt due to R. solanacearum was reduced by 117.02% when we added 100 mg L-1 of chitosan to the soil. However, the severity of this disease decreased by 142.86% when the soil was amended with chitin at 50 mg L-1. These findings are consistent with prior research that suggests using this technique to manage bacterial wilt caused by R. solanacearum.
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Claims 7
Claim · model-written summary
In vitro, the chitin-chitosan combination at 100 mg/L inhibited growth of isolated Ralstonia solanacearum strains by 45.04%.
- Taxon
- Solanum lycopersicum L.
Solanum lycopersicumt0 - Material
- isolated strainse1
- Treatment
- combination of chitin-chitosan (100 mg L-1)e3
- Interactor
- Ralstonia solanacearum
Ralstonia solanacearume0pathogen - Outcome
- growth of the isolated strainse1
- Direction
- inhibitione1
- Value
- 45.04%e3
- Setting
- in vitro on a solid medium (Mueller Hinton)e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“bio-elicitation of Solanum lycopersicum L.”
e0“Ralstonia solanacearum is one of the most destructive pathogens of vegetables”
e1“significant inhibition of the growth of the isolated strains”
e2“in vitro on a solid medium (Mueller Hinton)”
e3“an inhibition of 45.04% with the combination of chitin-chitosan (100 mg L-1)”
Claim · model-written summary
In vitro, chitin at 100 mg/L inhibited growth of isolated Ralstonia solanacearum strains by 58.92%.
- Taxon
- Solanum lycopersicum L.Solanum lycopersicumt0
- Material
- isolated strainse1
- Treatment
- the addition of 100 mg L-1 of chitine4
- Interactor
- Ralstonia solanacearumRalstonia solanacearume0pathogen
- Outcome
- growth of the isolated strainse1
- Direction
- inhibitione1
- Value
- 58.92%e4
- Setting
- in vitro on a solid medium (Mueller Hinton)e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“bio-elicitation of Solanum lycopersicum L.”
e0“Ralstonia solanacearum is one of the most destructive pathogens of vegetables”
e1“significant inhibition of the growth of the isolated strains”
e2“in vitro on a solid medium (Mueller Hinton)”
e4“58.92% with the addition of 100 mg L-1 of chitin”
Claim · model-written summary
In vitro, chitosan at 25 mg/L inhibited growth of isolated Ralstonia solanacearum strains by 68.74%.
- Taxon
- Solanum lycopersicum L.Solanum lycopersicumt0
- Material
- isolated strainse1
- Treatment
- chitosan at 25 mg L-1e5
- Interactor
- Ralstonia solanacearumRalstonia solanacearume0pathogen
- Outcome
- growth of the isolated strainse1
- Direction
- inhibitione1
- Value
- 68.74%e5
- Setting
- in vitro on a solid medium (Mueller Hinton)e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“bio-elicitation of Solanum lycopersicum L.”
e0“Ralstonia solanacearum is one of the most destructive pathogens of vegetables”
e1“significant inhibition of the growth of the isolated strains”
e2“in vitro on a solid medium (Mueller Hinton)”
e5“68.74% in the presence of chitosan at 25 mg L-1”
Claim · model-written summary
Chitin at 25 mg/L increased tomato stem length by 54.95%.
- Taxon
- Solanum lycopersicum L.Solanum lycopersicumt0
- Organ / stage
- Steme6
- Treatment
- chitin was added at 25 mg L-1e6
- Outcome
- Stem lengthe6
- Direction
- increasede6
- Value
- 54.95%e6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“bio-elicitation of Solanum lycopersicum L.”
e6“Stem length increased by 54.95% when chitin was added at 25 mg L-1”
Claim · model-written summary
Soil amendment with chitosan at 100 mg/L increased tomato root length by 82.55% compared with the control.
- Taxon
- Solanum lycopersicum L.Solanum lycopersicumt0
- Organ / stage
- roote7
- Treatment
- soil amendment with 100 mg L-1 of chitosane7
- Outcome
- root lengthe7
- Direction
- increasede7
- Value
- 82.55%e7
- Comparator
- the controle7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“bio-elicitation of Solanum lycopersicum L.”
e7“soil amendment with 100 mg L-1 of chitosan increased root length by 82.55% compared to the control”
Claim · model-written summary
Adding chitosan at 100 mg/L to soil reduced bacterial wilt severity caused by R. solanacearum by 117.02%.
- Taxon
- Solanum lycopersicum L.Solanum lycopersicumt0
- Treatment
- we added 100 mg L-1 of chitosan to the soile6
- Interactor
- R. solanacearumRalstonia solanacearume6pathogen
- Outcome
- severity of bacterial wilte6
- Direction
- reducede6
- Value
- 117.02%e6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“bio-elicitation of Solanum lycopersicum L.”
e6“The severity of bacterial wilt due to R. solanacearum was reduced by 117.02% when we added 100 mg L-1 of chitosan to the soil”
Claim · model-written summary
Soil amendment with chitin at 50 mg/L decreased the severity of bacterial wilt caused by R. solanacearum by 142.86%.
- Taxon
- Solanum lycopersicum L.Solanum lycopersicumt0
- Treatment
- the soil was amended with chitin at 50 mg L-1e7
- Interactor
- R. solanacearumRalstonia solanacearume6pathogen
- Outcome
- severity of this diseasee7
- Direction
- decreasede7
- Value
- 142.86%e7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“bio-elicitation of Solanum lycopersicum L.”
e6“The severity of bacterial wilt due to R. solanacearum was reduced by 117.02% when we added 100 mg L-1 of chitosan to the soil”
e7“the severity of this disease decreased by 142.86% when the soil was amended with chitin at 50 mg L-1”
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