Abstract
ABSTRACT Biological control of soilborne plant pathogens in the field has given variable results. By combining specific strains of microorganisms, multiple traits antagonizing the pathogen can be combined and this may result in a higher level of protection. Pseudomonas putida WCS358 suppresses Fusarium wilt of radish by effectively competing for iron through the production of its pseudobactin siderophore. However, in some bioassays pseudobactin-negative mutants of WCS358 also suppressed disease to the same extent as WCS358, suggesting that an, as yet unknown, additional mechanism may be operative in this strain. P. putida strain RE8 induced systemic resistance against fusarium wilt. When WCS358 and RE8 were mixed through soil together, disease suppression was significantly enhanced to approximately 50% as compared to the 30% reduction for the single strain treatments. Moreover, when one strain failed to suppress disease in the single application, the combination still resulted in disease control. The enhanced disease suppression by the combination of P. putida strains WCS358 and RE8 is most likely the result of the combination of their different disease-suppressive mechanisms. These results demonstrate that combining biocontrol strains can lead to more effective, or at least, more reliable biocontrol of fusarium wilt of radish.
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Claims 6
Claim · model-written summary
WCS358 suppresses Fusarium wilt of radish through iron competition via pseudobactin.
- Taxon
- radish
Raphanus sativuse0 - Second interactor
- Pseudomonas putida WCS358
Pseudomonas putidae0biocontrol_agent - Outcome
- Fusarium wilt of radishe0
- Qualifier
- competing for irone0
FusariumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pseudomonas putida WCS358 suppresses Fusarium wilt of radish by effectively competing for iron through the production of its pseudobactin siderophore.”
Claim · model-written summary
Pseudobactin-negative WCS358 mutants suppressed disease to the same extent as WCS358 in some bioassays.
- Taxon
- RadishRaphanus sativust0
- Treatment
- pseudobactin-negative mutants of WCS358e0
- Interactor
- WCS358e0biocontrol_agent
- Outcome
- diseasee0
- Direction
- to the same extente0
- Comparator
- WCS358e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in some bioassays pseudobactin-negative mutants of WCS358 also suppressed disease to the same extent as WCS358”
t0“Radish”
Claim · model-written summary
RE8 induced systemic resistance against Fusarium wilt.
- Taxon
- RadishRaphanus sativust0
- Treatment
- P. putida strain RE8e0
- Interactor
- P. putida strain RE8Pseudomonas putidae0biocontrol_agent
- Outcome
- systemic resistance against fusarium wilte0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“P. putida strain RE8 induced systemic resistance against fusarium wilt.”
t0“Radish”
Claim · model-written summary
Combined WCS358 and RE8 suppressed disease approximately 50%, versus 30% for single strains.
- Taxon
- RadishRaphanus sativust0
- Treatment
- WCS358 and RE8e0
- Interactor
- WCS358e0biocontrol_agent
- Second interactor
- RE8e0biocontrol_agent
- Outcome
- disease suppressione0
- Direction
- enhancede0
- Value
- approximately 50%e0
- Qualifier
- 30%e0
- Comparator
- single strain treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When WCS358 and RE8 were mixed through soil together, disease suppression was significantly enhanced to approximately 50% as compared to the 30% reduction for the single strain treatments.”
t0“Radish”
Claim · model-written summary
The combination controlled disease even when one strain failed alone.
- Taxon
- RadishRaphanus sativust0
- Treatment
- the combinatione0
- Outcome
- disease controle0
- Comparator
- single applicatione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“when one strain failed to suppress disease in the single application, the combination still resulted in disease control.”
t0“Radish”
Claim · model-written summary
Enhanced suppression by the combination was attributed to different suppressive mechanisms.
- Taxon
- RadishRaphanus sativust0
- Interactor
- P. putida strains WCS358 and RE8e0biocontrol_agent
- Outcome
- enhanced disease suppressione0
- Qualifier
- different disease-suppressive mechanismse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The enhanced disease suppression by the combination of P. putida strains WCS358 and RE8 is most likely the result of the combination of their different disease-suppressive mechanisms.”
t0“Radish”
The same questions in other papers
Pseudomonas putida · disease · Raphanus sativus (radish)Positive and negative results
1 in the opposite direction
- no effect
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.