Abstract
Environmentally friendly control measures for soilborne plant pathogens are needed that are effective in different soils when applied alone or as components of an integrated disease control strategy. An ethanol extract of Serratia marcescens N4-5, when applied as a cucumber seed treatment, effectively suppressed damping-off caused by Pythium ultimum in potting mix and in a sandy loam soil. Plant stand associated with this treatment was similar to that of seed treated with the chemical pesticide Thiram in the sandy loam soil. The N4-5 ethanol extract did not consistently provide significant disease control in a loam soil. The N4-5 ethanol extract was compatible with two Trichoderma isolates, not affecting in vitro or in situ colonization of cucumber by these biological control fungi. Control of damping-off of cucumber was never diminished when this ethanol extract was applied as a seed treatment in combination with in-furrow application of the Trichoderma isolates, and disease control was improved in certain instances with these combinations in the loam soil. Data presented here indicate that the N4-5 ethanol extract is compatible with certain beneficial fungi, suggesting that this extract can be used as a component of integrated disease control strategies featuring biological control fungi.
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Claims 6
Claim · model-written summary
The ethanol extract of Serratia marcescens N4-5 applied as a seed treatment suppressed cucumber damping-off caused by Pythium ultimum.
- Taxon
- cucumber
Cucumis sativuse1 - Treatment
- ethanol extract of Serratia marcescens N4-5e1
- Interactor
- Pythium ultimumGlobisporangium ultimume1pathogen
- Second interactor
- Serratia marcescens N4-5
Serratia marcescense1biocontrol_agent - Outcome
- damping-offe1
- Direction
- suppressede1
- Setting
- potting mix and in a sandy loam soile1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“An ethanol extract of Serratia marcescens N4-5, when applied as a cucumber seed treatment, effectively suppressed damping-off caused by Pythium ultimum in potting mix and in a sandy loam soil”
Claim · model-written summary
Plant stand with the N4-5 ethanol extract seed treatment was similar to that with Thiram in sandy loam soil.
- Taxon
- cucumberCucumis sativuse1
- Treatment
- ethanol extract of Serratia marcescens N4-5e1
- Outcome
- Plant stande2
- Direction
- similare2
- Comparator
- chemical pesticide Thirame2
- Setting
- sandy loam soile2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“An ethanol extract of Serratia marcescens N4-5, when applied as a cucumber seed treatment, effectively suppressed damping-off caused by Pythium ultimum in potting mix and in a sandy loam soil”
e2“Plant stand associated with this treatment was similar to that of seed treated with the chemical pesticide Thiram in the sandy loam soil”
Claim · model-written summary
The N4-5 ethanol extract did not consistently give significant disease control in loam soil.
- Taxon
- cucumberCucumis sativuse1
- Treatment
- N4-5 ethanol extracte3
- Outcome
- disease controle3
- Setting
- loam soile3
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“An ethanol extract of Serratia marcescens N4-5, when applied as a cucumber seed treatment, effectively suppressed damping-off caused by Pythium ultimum in potting mix and in a sandy loam soil”
e3“The N4-5 ethanol extract did not consistently provide significant disease control in a loam soil”
Claim · model-written summary
The N4-5 ethanol extract was compatible with two Trichoderma isolates and did not affect their colonization of cucumber.
- Taxon
- cucumberCucumis sativuse4
- Treatment
- N4-5 ethanol extracte4
- Interactor
- Trichoderma
Trichodermae4biocontrol_agent - Outcome
- in vitro or in situ colonization of cucumbere4
- Direction
- not affectinge4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The N4-5 ethanol extract was compatible with two Trichoderma isolates, not affecting in vitro or in situ colonization of cucumber by these biological control fungi”
Claim · model-written summary
Control of cucumber damping-off was never diminished when the extract was combined with in-furrow Trichoderma.
- Taxon
- cucumberCucumis sativuse5
- Treatment
- in combination with in-furrow application of the Trichoderma isolatese5
- Outcome
- Control of damping-off of cucumbere5
- Direction
- never diminishede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Control of damping-off of cucumber was never diminished when this ethanol extract was applied as a seed treatment in combination with in-furrow application of the Trichoderma isolates”
Claim · model-written summary
Disease control was improved in certain instances with these combinations in loam soil.
- Taxon
- cucumberCucumis sativuse1
- Treatment
- these combinationse6
- Outcome
- disease controle6
- Direction
- improvede6
- Qualifier
- in certain instancese6
- Setting
- loam soile6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“An ethanol extract of Serratia marcescens N4-5, when applied as a cucumber seed treatment, effectively suppressed damping-off caused by Pythium ultimum in potting mix and in a sandy loam soil”
e6“disease control was improved in certain instances with these combinations in the loam soil”
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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.