Abstract
Keeping in view the staid health and ecological apprehensions coupled with the use of pesticides, entomopathogenic nematodes have the potential to supersede pesticides for the management of various pests. Brinjal plants are the most seriously affected by Meloidogyne incognita. The main objective of this study was to evaluate the persistence effectiveness of bacterial cell suspensions (Xenorhabdus and Photorhabdus spp.) and their culture filtrates in soil up to 7, 14 and 21 days and their response against M. incognita as a source of biological control for nematode management. In a life cycle study, Xenorhabdus and Photorhabdus spp., isolated from Steinernema asiaticum and Heterorhabditis bacteriophora, were proved more effective in influencing the life cycle of RKNs. It was found that all the treatments of bacterial cell suspensions and their culture filtrates at all persistent times proved effective in reducing the number of females and egg masses as compared to control. It delayed penetration of nematode juveniles (J2) into host roots. It was concluded that persistence effectiveness of bacteria and their metabolites decreased in soil with time.
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Claims 5
Claim · model-written summary
Xenorhabdus and Photorhabdus were more effective in influencing root-knot nematode life cycles.
- Taxon
- brinjal
Solanum melongenat0 - Treatment
- Xenorhabdus and Photorhabdus spp.e0
- Interactor
- RKNse0pest
- Second interactor
- Xenorhabdus and Photorhabdus spp.Xenorhabdus
Photorhabduse0biocontrol_agent
- Outcome
- life cycle of RKNse0
- Direction
- more effectivee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Xenorhabdus and Photorhabdus spp., isolated from Steinernema asiaticum and Heterorhabditis bacteriophora, were proved more effective in influencing the life cycle of RKNs”
t0“brinjal”
Claim · model-written summary
Bacterial suspensions and filtrates reduced nematode number of females relative to control at all tested persistence times.
- Taxon
- brinjalSolanum melongenat0
- Treatment
- bacterial cell suspensions and their culture filtratese0
- Interactor
- M. incognita
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=60)
Meloidogyne incognitat0pest - Outcome
- number of femalese0
- Direction
- reducinge0
- Qualifier
- all persistent timese0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
e0“all the treatments of bacterial cell suspensions and their culture filtrates at all persistent times proved effective in reducing the number of females and egg masses as compared to control”
t0“M. incognitaon brinjal”
Claim · model-written summary
Bacterial suspensions and filtrates reduced nematode egg masses relative to control at all tested persistence times.
- Taxon
- brinjalSolanum melongenat0
- Treatment
- bacterial cell suspensions and their culture filtratese0
- Interactor
- M. incognitaMeloidogyne incognitat0pest
- Outcome
- egg massese0
- Direction
- reducinge0
- Qualifier
- all persistent timese0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all the treatments of bacterial cell suspensions and their culture filtrates at all persistent times proved effective in reducing the number of females and egg masses as compared to control”
t0“M. incognitaon brinjal”
Claim · model-written summary
Bacterial treatment delayed juvenile nematode penetration into brinjal roots.
- Taxon
- brinjalSolanum melongenat0
- Treatment
- bacterial cell suspensions and culture filtratest0
- Interactor
- nematode juveniles (J2)e0pest
- Outcome
- penetration of nematode juveniles (J2) into host rootse0
- Direction
- delayede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It delayed penetration of nematode juveniles (J2) into host roots”
t0“bacterial cell suspensions and culture filtrates againstM. incognitaon brinjal”
Claim · model-written summary
Bacterial and metabolite effectiveness declined in soil over time.
- Taxon
- brinjalSolanum melongenat0
- Outcome
- persistence effectivenesse0
- Direction
- decreasede0
- Setting
- soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“persistence effectiveness of bacteria and their metabolites decreased in soil with time”
t0“brinjal”
The same questions in other papers
pathogen product · pest · Solanum melongena (eggplant)Results agree
5 papers in the same direction as this paper
- positive
- positive
- positive
2 papers more in this group
See all 6 papers →pathogen product · Meloidogyne incognita · Solanum melongena (eggplant)Results agree
5 papers in the same direction as this paper
- positive
- positive
- positive
2 papers more in this group
See all 6 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.