Abstract
Abstract Isolates of non-pathogenic Fusarium moniliforme (Fu3, Fu7 and Fu24), F. oxysporum (Fu2, Fu4), F. solani (Fu25) and F. merismoides (Fu1) that were found to be effective in reducing wilt incidence in tomato were tested for their potential to elicit induced systemic resistance (ISR) in tomato. Talc formulations of these isolates derived from liquid fermentation as well as cell elicitors of these cultures were tested. Changes in the phenol and total protein contents and activities of peroxidase and polyphenol oxidase were studied. Isolate Fu3 induced more phenol and total protein contents as well as activities of peroxidase and polyphenol oxidase. Elicitors of Fu2 induced more of these compounds and enzymes. Although Fu1, Fu4 and Fu24 were found to give good control against Fusarium wilt incidence in an earlier study, they were less effective in inducing these defense related compounds. Peroxidase activity was increased when plants were treated with Fu3, Fu4, Fu7, Fu24 and Fu25, whereas polyphenol oxidase activity was increased only with the isolate Fu3 and elicitor of Fu2. It is suggested that ISR was the mode of action for the isolates Fu2 and Fu3, whereas for the other isolates, the mode of action may be root colonisation, competition for nutrition and so on. The role of ISR with non-pathogenic isolates of Fusarium spp. is discussed. Keywords: Non-pathogenic Fusarium Fusarium wilttomatoinduced systemic resistance Acknowledgements The authors acknowledge the grant provided by Indian Council of Agricultural Research in the form of PhytoFuRa project. The infrastructure facilities and encouragement provided by the Director, NBAII, Bangalore, is gratefully acknowledged. Additional informationNotes on contributorsS. Patil Present address: College of Agriculture, University of Agricultural Sciences, Raichur, Karnataka, India
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Claims 9
Claim · model-written summary
Fu3 increased phenol and total protein contents and peroxidase activity in tomato.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- Fu3e0
- Interactor
- Fu3e0biocontrol_agent
- Outcome
- phenol and total protein contentse0
- Direction
- induced moree0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Isolate Fu3 induced more phenol and total protein contents as well as activities of peroxidase and polyphenol oxidase.”
t0“tomato”
Claim · model-written summary
Fu3 increased polyphenol oxidase activity.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Fu3e0
- Interactor
- Fu3e0biocontrol_agent
- Outcome
- polyphenol oxidasee0
- Direction
- induced moree0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Isolate Fu3 induced more phenol and total protein contents as well as activities of peroxidase and polyphenol oxidase.”
t0“tomato”
Claim · model-written summary
Fu2 elicitors induced more defense compounds and enzymes.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Elicitors of Fu2e0
- Interactor
- Fu2e0biocontrol_agent
- Outcome
- compounds and enzymese0
- Direction
- induced moree0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Elicitors of Fu2 induced more of these compounds and enzymes.”
t0“tomato”
Claim · model-written summary
Fu1, Fu4 and Fu24 were less effective at inducing defense compounds.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Fu1, Fu4 and Fu24e0
- Outcome
- defense related compoundse0
- Direction
- less effectivee0
Not reportedInteractorComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Although Fu1, Fu4 and Fu24 were found to give good control against Fusarium wilt incidence in an earlier study, they were less effective in inducing these defense related compounds.”
t0“tomato”
Claim · model-written summary
Fu3, Fu4, Fu7, Fu24 and Fu25 increased tomato peroxidase activity.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Fu3, Fu4, Fu7, Fu24 and Fu25e0
- Outcome
- Peroxidase activitye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Peroxidase activity was increased when plants were treated with Fu3, Fu4, Fu7, Fu24 and Fu25”
t0“tomato”
Claim · model-written summary
Fu3 increased polyphenol oxidase activity.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- isolate Fu3e0
- Interactor
- Fu3e0biocontrol_agent
- Outcome
- polyphenol oxidase activitye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“polyphenol oxidase activity was increased only with the isolate Fu3 and elicitor of Fu2.”
t0“tomato”
Claim · model-written summary
Fu2 elicitor increased polyphenol oxidase activity.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- elicitor of Fu2e0
- Outcome
- polyphenol oxidase activitye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“polyphenol oxidase activity was increased only with the isolate Fu3 and elicitor of Fu2.”
t0“tomato”
Claim · model-written summary
Authors suggest induced systemic resistance is the mode of action for Fu2 and Fu3.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- ISRe0
- Qualifier
- mode of action for the isolates Fu2 and Fu3e0
Not reportedInteractor
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It is suggested that ISR was the mode of action for the isolates Fu2 and Fu3”
t0“tomato”
Claim · model-written summary
Authors suggest other isolates may act through root colonisation and nutrient competition.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- root colonisation, competition for nutritione0
- Qualifier
- mode of actione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“whereas for the other isolates, the mode of action may be root colonisation, competition for nutrition and so on.”
t0“tomato”
The same questions in other papers
resistance inducer · physiology: enzyme activity · Solanum lycopersicum (tomato)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
resistance inducer · physiology: antioxidant enzymes · Solanum lycopersicum (tomato)Positive and negative results
11 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- no effect
- positive
10 papers more in this group
See all 14 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.