Abstract
summary The effect of the fungal biocontrol agent Gliocladium wrens Miller, Giddens & Foster on the colonization of cucumber by the VA mycorrhizal fungi Glomus etunicatum Becker & Gerdemann and Glomus mosseae (Nicol. & Gerd.) Gerdemann & Trappe was investigated. Inoculum of G. virens , grown on wheat bran or peatmoss‐Czapek substrate, was added to soil artificially infested with Pythium ultimum Trow. Both damping‐off of cucumber and pathogen population density were reduced in treatments with G. virens. Inoculum of G. virens was also added to soils containing increasing propagule densities of Glomus etunicatum or Glomus mosseae. After one week of incubation, the soils were planted with cucumber seeds, and the percent mycorrhizal colonization of roots was determined after 12 d. When grown on wheat bran, G. virens was phytotoxic and increased mycorrhizal colonization by Glomus etunicatum. However, G. virens had no effect on Glomus etunicatum when added as peatmoss‐Czapek inoculum. Amendment of soil with peatmoss‐Czapek inoculum of G. virens reduced colonization by Glomus mosseae when compared to a non‐amended control. Inoculum colonized by other fungal biocontrol agents and sterilized with propylene oxide gave a similar reduction, suggesting that the substrate, not G. virens , was responsible for the reduction in VA mycorrhizal colonization. This evidence suggests that the fungal biocontrol agent G. virens does not have a detrimental impact on these VA mycorrhizal fungi, and would be compatible if applied as a dual‐inoculum.
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Claims 7
Claim · model-written summary
Gliocladium virens reduced both damping-off of cucumber and Pythium population density.
- Taxon
- cucumber
Cucumis sativuse2 - Treatment
- Inoculum of G. virense1
- Interactor
- Pythium ultimumGlobisporangium ultimume1pathogen
- Second interactor
- G. virensTrichoderma virense1biocontrol_agent
- Outcome
- damping‐off of cucumber and pathogen population densitye2
- Direction
- reducede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Inoculum of G. virens , grown on wheat bran or peatmoss‐Czapek substrate, was added to soil artificially infested with Pythium ultimum Trow”
e2“Both damping‐off of cucumber and pathogen population density were reduced in treatments with G. virens”
Claim · model-written summary
On wheat bran, Gliocladium virens was phytotoxic and increased mycorrhizal colonization of cucumber by Glomus etunicatum.
- Taxon
- cucumberCucumis sativuse4
- Treatment
- When grown on wheat brane3
- Interactor
- Glomus etunicatume3symbiont
- Second interactor
- G. virensTrichoderma virense3biocontrol_agent
- Outcome
- mycorrhizal colonization by Glomus etunicatume3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“When grown on wheat bran, G. virens was phytotoxic and increased mycorrhizal colonization by Glomus etunicatum”
e4“The effect of the fungal biocontrol agent Gliocladium wrens Miller, Giddens & Foster on the colonization of cucumber by the VA mycorrhizal fungi”
Claim · model-written summary
Gliocladium virens had no effect on colonization of cucumber by Glomus etunicatum when added as peat moss inoculum.
- Taxon
- cucumberCucumis sativuse4
- Treatment
- peatmoss‐Czapek inoculume5
- Interactor
- Glomus etunicatume5symbiont
- Second interactor
- G. virensTrichoderma virense5biocontrol_agent
- Outcome
- colonizatione4
- Direction
- no effecte5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“G. virens had no effect on Glomus etunicatum when added as peatmoss‐Czapek inoculum”
e4“The effect of the fungal biocontrol agent Gliocladium wrens Miller, Giddens & Foster on the colonization of cucumber by the VA mycorrhizal fungi”
Claim · model-written summary
Amendment of soil with peatmoss-Czapek inoculum reduced colonization of cucumber by Glomus mosseae compared with a non-amended control.
- Taxon
- cucumberCucumis sativuse4
- Treatment
- Amendment of soil with peatmoss‐Czapek inoculume6
- Interactor
- Glomus mosseae
Funneliformis mosseaee6symbiont - Second interactor
- G. virensTrichoderma virense6biocontrol_agent
- Outcome
- colonization by Glomus mosseaee6
- Direction
- reducede6
- Comparator
- non‐amended controle6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Amendment of soil with peatmoss‐Czapek inoculum of G. virens reduced colonization by Glomus mosseae when compared to a non‐amended control”
e4“The effect of the fungal biocontrol agent Gliocladium wrens Miller, Giddens & Foster on the colonization of cucumber by the VA mycorrhizal fungi”
Claim · model-written summary
The reduction in VA mycorrhizal colonization is suggested to be caused by the substrate, not by Gliocladium virens.
- Taxon
- cucumberCucumis sativuse4
- Outcome
- reduction in VA mycorrhizal colonizatione7
- Qualifier
- the substrate, not G. virens, was responsiblee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Inoculum colonized by other fungal biocontrol agents and sterilized with propylene oxide gave a similar reduction, suggesting that the substrate, not G. virens, was responsible for the reduction in VA mycorrhizal colonization”
e4“The effect of the fungal biocontrol agent Gliocladium wrens Miller, Giddens & Foster on the colonization of cucumber by the VA mycorrhizal fungi”
Claim · model-written summary
Gliocladium virens would be compatible with VA mycorrhizal fungi if applied as a dual-inoculum.
- Taxon
- cucumberCucumis sativuse2
- Outcome
- compatible if applied as a dual‐inoculume1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“This evidence suggests that the fungal biocontrol agent G. virens does not have a detrimental impact on these VA mycorrhizal fungi, and would be compatible if applied as a dual‐inoculum”
e2“The effect of the fungal biocontrol agent Gliocladium wrens Miller, Giddens & Foster on the colonization of cucumber by the VA mycorrhizal fungi”
Claim · model-written summary
Gliocladium virens does not have a detrimental impact on VA mycorrhizal fungi.
- Taxon
- cucumberCucumis sativuse2
- Treatment
- fungal biocontrol agent G. virense1
- Outcome
- detrimental impact on these VA mycorrhizal fungie1
- Direction
- does not havee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“This evidence suggests that the fungal biocontrol agent G. virens does not have a detrimental impact on these VA mycorrhizal fungi, and would be compatible if applied as a dual‐inoculum”
e2“The effect of the fungal biocontrol agent Gliocladium wrens Miller, Giddens & Foster on the colonization of cucumber by the VA mycorrhizal fungi”
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See all 83 papers →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.