Abstract
This study was done to evaluate the efficiency of non-pathogenic Fusarium oxysporum isolates (141/3, 233, 233/1, 245, 245/1, 251, 251/2, 251/5, and 257) in controlling vascular wilt caused by F. oxysporum f. sp. lycopersici, race 2 (isolates C-21A, TO11, and TO245) in tomato (Lycopersicon esculentum) cv. Viradoro seedlings. In order to determine the effect of non-pathogenic F. oxysporum isolates in tomato plants, the root system of 30-day-old seedlings was immersed in conidial suspensions (10(6) ml-1) of each isolate and the seedlings were transplanted to a cultivation substrate. Thirty-five days after transplanting it was observed that the non-pathogenic F. oxysporum isolates were not pathogenic to the cv. Viradoro nor did they affect seedling development. The efficiency of the non-pathogenic F. oxysporum isolates in controlling Fusarium wilt was determined by immersing the tomato seedling roots in the conidial suspension (10(6) ml-1) of each isolate and then transplanting them into substrates previously infested with isolates of F. oxysporum f.sp. lycopersici, race 2 (10(5) conidia ml-1 of substrate). Evaluations were performed 35 days after transplanting, for severity in scale with 1=healthy plant to 6=dead plant or plant showing vessel browning and wilted leaves up to the leader shoot and seedling height. The non-pathogenic F. oxysporum isolates were efficient in reducing the severity of the disease and maintaining normal plant development. These results provide evidence of the antagonistic activity of non-pathogenic F. oxysporum isolates in controlling vascular wilt caused by F. oxysporum f. sp. lycopersici race 2 in tomato.
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Claims 3
Claim · model-written summary
Non-pathogenic F. oxysporum isolates were not pathogenic to tomato cv. Viradoro and did not affect seedling development.
- Taxon
- tomato
Solanum lycopersicume0 - Interactor
- non-pathogenic F. oxysporum isolatese1other
- Outcome
- seedling developmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in tomato (Lycopersicon esculentum) cv. Viradoro seedlings”
e1“the non-pathogenic F. oxysporum isolates were not pathogenic to the cv. Viradoro nor did they affect seedling development”
Claim · model-written summary
Non-pathogenic F. oxysporum isolates efficiently reduced the severity of Fusarium wilt in tomato caused by F. oxysporum f. sp. lycopersici race 2.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- non-pathogenic F. oxysporum isolatese2
- Interactor
- F. oxysporum f. sp. lycopersici race 2
Fusarium oxysporum f. sp. lycopersicie3pathogen - Second interactor
- non-pathogenic F. oxysporum isolatese2biocontrol_agent
- Outcome
- severity of the diseasee2
- Direction
- reducinge2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in tomato (Lycopersicon esculentum) cv. Viradoro seedlings”
e2“The non-pathogenic F. oxysporum isolates were efficient in reducing the severity of the disease and maintaining normal plant development”
e3“in controlling vascular wilt caused by F. oxysporum f. sp. lycopersici race 2 in tomato”
Claim · model-written summary
Non-pathogenic F. oxysporum isolates maintained normal development of tomato seedlings under Fusarium wilt challenge.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- non-pathogenic F. oxysporum isolatese2
- Outcome
- normal plant developmente2
- Direction
- maintaininge2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in tomato (Lycopersicon esculentum) cv. Viradoro seedlings”
e2“The non-pathogenic F. oxysporum isolates were efficient in reducing the severity of the disease and maintaining normal plant development”
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Fusarium oxysporum · growth · Solanum lycopersicum (tomato)Positive and negative results
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- no effect
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See all 12 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.