Abstract
Abstract In this study, only non-antagonistic, root-colonizing bacterial isolates and non-pathogenic F. oxysporum isolates were evaluated either alone or in combination as biological control agents. Two non-pathogenic F. oxysporum isolates significantly reduced the Fusarium root and stem rot severity compared to the pathogen inoculated controls plants. Although the bacterial isolates did not protect cucumber plants from Fusarium rot when they were applied alone, the bacterial isolates significantly enhanced (p < 0.05) the plant protection when they were used in combination with the non-pathogenic F. oxysporum isolates. Interestingly, one of the non-pathogenic F. oxysporum isolates which did not protect cucumber plants from Fusarium rot when used alone became a biological control agent when combined with either bacterial isolates. Seed bacterization induced significant root development compared to non-bacterized controls indicating positive effect on the plant growth. Addition of excess iron did not affect the plant protection ability of bacteria indicating no involvement of sidereophore-mediated iron competition. These data provide evidence of the importance of the use of the combination of two biological control agents in this system. Keywords: Cucumberbiological controlrhizobacteriaintegrated crop protectionSri Lanka Acknowledgements The author wishes to thank the financial support provided by the University of Ruhuna through the Faculty of Science Research grant (RU/SF/RP/2001/04).
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 6
Claim · model-written summary
Two nonpathogenic Fusarium isolates significantly reduced rot severity versus pathogen-inoculated controls.
- Taxon
- cucumber
Cucumis sativuse1 - Treatment
- Two non-pathogenic F. oxysporum isolatese0
- Second interactor
- F. oxysporum
_(Fusarium_oxysporum_f.sp._batatas)_1234227-PPT-Clemson_University.jpg?width=60)
Fusarium oxysporume0biocontrol_agent - Outcome
- Fusarium root and stem rot severitye0
- Direction
- reducede0
- Comparator
- pathogen inoculated controls plantse0
FusariumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
_(Fusarium_oxysporum_f.sp._batatas)_1234227-PPT-Clemson_University.jpg?width=500)
Verbatim
e0“Two non-pathogenic F. oxysporum isolates significantly reduced the Fusarium root and stem rot severity compared to the pathogen inoculated controls plants.”
e1“Although the bacterial isolates did not protect cucumber plants from Fusarium rot”
Claim · model-written summary
Bacterial isolates alone did not protect cucumber from Fusarium rot.
- Taxon
- cucumberCucumis sativuse0
- Treatment
- bacterial isolatese0
- Outcome
- protect cucumber plants from Fusarium rote0
- Direction
- did not protecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the bacterial isolates did not protect cucumber plants from Fusarium rot when they were applied alone”
Claim · model-written summary
Combining bacterial and nonpathogenic Fusarium isolates significantly enhanced plant protection.
- Taxon
- cucumberCucumis sativuse1
- Treatment
- bacterial isolatese0
- Second interactor
- F. oxysporumFusarium oxysporume0biocontrol_agent
- Outcome
- plant protectione0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the bacterial isolates significantly enhanced (p < 0.05) the plant protection when they were used in combination with the non-pathogenic F. oxysporum isolates”
e1“Although the bacterial isolates did not protect cucumber plants from Fusarium rot”
Claim · model-written summary
A nonpathogenic Fusarium isolate became effective when combined with either bacterial isolate.
- Taxon
- cucumberCucumis sativuse0
- Treatment
- combined with either bacterial isolatese0
- Second interactor
- F. oxysporumFusarium oxysporume0biocontrol_agent
- Outcome
- protect cucumber plants from Fusarium rote0
- Direction
- became a biological control agente0
- Comparator
- used alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“one of the non-pathogenic F. oxysporum isolates which did not protect cucumber plants from Fusarium rot when used alone became a biological control agent when combined with either bacterial isolates”
Claim · model-written summary
Seed bacterization significantly increased root development relative to nonbacterized controls.
- Taxon
- cucumberCucumis sativuse1
- Organ / stage
- roote0
- Treatment
- Seed bacterizatione0
- Outcome
- root developmente0
- Direction
- inducede0
- Comparator
- non-bacterized controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed bacterization induced significant root development compared to non-bacterized controls”
e1“Although the bacterial isolates did not protect cucumber plants from Fusarium rot”
Claim · model-written summary
Excess iron did not affect bacterial plant protection.
- Taxon
- cucumberCucumis sativuse1
- Treatment
- Addition of excess irone0
- Outcome
- plant protection ability of bacteriae0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Addition of excess iron did not affect the plant protection ability of bacteria”
e1“Although the bacterial isolates did not protect cucumber plants from Fusarium rot”
The same questions in other papers
Fusarium oxysporum · disease · Cucumis sativus (cucumber)Positive and negative results
2 papers in the same direction as this paper · 2 in the opposite direction
- negative
- no effect
- positive
1 paper more in this group
See all 5 papers →inoculation · Fusarium · Cucumis sativus (cucumber)Results agree
6 papers in the same direction as this paper
- positive
- positive
- positive
3 papers more in this group
See all 7 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.