Abstract
Abstract Isolates of Steinernema feltiae MG-14 from Hawaii and SN from France, and the symbiont Xenorhabdus bovienii from each nematode isolate, were tested for their glasshouse efficacy against the root-knot nematode, Meloidogyne javanica, on several vegetable plants. Steinernema feltiae application for 3-5 consecutive days at rates of 1000 or 10 000 infective juveniles (IJ) did not affect M. javanica root penetration and development in glasshouse pot experiments. IJ were recovered from the cortical tissue of tomatoes, soybeans, snow peas and cow peas. Xenorhabdus bovienii applied at 1010 colony-forming units (CFU) ml–1 reduced root-knot nematode penetration in cow peas but was ineffective in tomato or snow pea. Xenorhabdus bovienii metabolites had no effect on M. javanica root penetration and egg production in soybean. Soybean plant growth was unaffected by nematode and bacterial treatment; biomass was lower in M. javanica-infected soybean, irrespective of treatment, than in non-infected soybean, but the differences between the treatments were non-significant. Accordingly, the Steinernema feltiae-Xenorhabdus bovienii complex did not meet the objective for the suppression of M. javanica root penetration and development.
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Claims 10
Claim · model-written summary
Steinernema feltiae did not affect M. javanica root penetration.
- Taxon
- tomatoes
Solanum lycopersicume1 - Treatment
- Steinernema feltiae application for 3-5 consecutive days at rates of 1000 or 10 000 infective juveniles (IJ)e0
- Interactor
- M. javanicaMeloidogyne javanicae0pathogen
- Second interactor
- Steinernema feltiae
Steinernema feltiaee0biocontrol_agent - Outcome
- M. javanica root penetratione0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Steinernema feltiae application for 3-5 consecutive days at rates of 1000 or 10 000 infective juveniles (IJ) did not affect M. javanica root penetration and development in glasshouse pot experiments.”
e1“IJ were recovered from the cortical tissue of tomatoes, soybeans, snow peas and cow peas.”
Claim · model-written summary
Steinernema feltiae did not affect M. javanica development.
- Taxon
- tomatoesSolanum lycopersicume1
- Treatment
- Steinernema feltiae application for 3-5 consecutive days at rates of 1000 or 10 000 infective juveniles (IJ)e0
- Interactor
- M. javanicaMeloidogyne javanicae0pathogen
- Second interactor
- Steinernema feltiaeSteinernema feltiaee0biocontrol_agent
- Outcome
- M. javanica root penetration and developmente0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Steinernema feltiae application for 3-5 consecutive days at rates of 1000 or 10 000 infective juveniles (IJ) did not affect M. javanica root penetration and development in glasshouse pot experiments.”
e1“IJ were recovered from the cortical tissue of tomatoes, soybeans, snow peas and cow peas.”
Claim · model-written summary
Infective juveniles were recovered from cortical tissue of four vegetable hosts.
- Taxon
- tomatoesSolanum lycopersicume0
- Organ / stage
- cortical tissuee0
- Interactor
- IJe0biocontrol_agent
- Outcome
- IJ were recoverede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“IJ were recovered from the cortical tissue of tomatoes, soybeans, snow peas and cow peas.”
Claim · model-written summary
Xenorhabdus bovienii reduced root-knot nematode penetration in cow peas.
- Taxon
- cow peas
Vigna unguiculatae0 - Treatment
- Xenorhabdus bovienii applied at 1010 colony-forming units (CFU) ml–1e0
- Interactor
- root-knot nematode
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=60)
Meloidogynee0pathogen - Second interactor
- Xenorhabdus bovieniiXenorhabdus bovieniie0biocontrol_agent
- Outcome
- root-knot nematode penetratione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
e0“Xenorhabdus bovienii applied at 1010 colony-forming units (CFU) ml–1 reduced root-knot nematode penetration in cow peas”
Claim · model-written summary
Xenorhabdus bovienii was ineffective in tomato.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- Xenorhabdus bovieniit0
- Interactor
- Meloidogyne javanicaMeloidogyne javanicat0pathogen
- Second interactor
- Xenorhabdus bovieniiXenorhabdus bovieniit0biocontrol_agent
- Outcome
- ineffectivee0
- Direction
- ineffectivee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but was ineffective in tomato or snow pea”
t0“Effect of Steinernema feltiae-Xenorhabdus bovienii insect pathogen complex on Meloidogyne javanica”
Claim · model-written summary
Xenorhabdus bovienii was ineffective in snow pea.
- Taxon
- snow peae0
- Treatment
- Xenorhabdus bovieniit0
- Interactor
- Meloidogyne javanicaMeloidogyne javanicat0pathogen
- Second interactor
- Xenorhabdus bovieniiXenorhabdus bovieniit0biocontrol_agent
- Outcome
- ineffectivee0
- Direction
- ineffectivee0
Not reportedComparator
Verbatim
e0“but was ineffective in tomato or snow pea”
t0“Effect of Steinernema feltiae-Xenorhabdus bovienii insect pathogen complex on Meloidogyne javanica”
Claim · model-written summary
Xenorhabdus metabolites had no effect on nematode root penetration in soybean.
- Taxon
- soybean
Glycine maxe0 - Treatment
- Xenorhabdus bovienii metabolitese0
- Interactor
- M. javanicaMeloidogyne javanicae0pathogen
- Second interactor
- Xenorhabdus bovieniiXenorhabdus bovieniie0biocontrol_agent
- Outcome
- M. javanica root penetratione0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Xenorhabdus bovienii metabolites had no effect on M. javanica root penetration and egg production in soybean.”
Claim · model-written summary
Xenorhabdus metabolites had no effect on nematode egg production in soybean.
- Taxon
- soybeanGlycine maxe0
- Treatment
- Xenorhabdus bovienii metabolitese0
- Interactor
- M. javanicaMeloidogyne javanicae0pathogen
- Second interactor
- Xenorhabdus bovieniiXenorhabdus bovieniie0biocontrol_agent
- Outcome
- egg productione0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Xenorhabdus bovienii metabolites had no effect on M. javanica root penetration and egg production in soybean.”
Claim · model-written summary
Soybean growth was unaffected by nematode and bacterial treatment.
- Taxon
- SoybeanGlycine maxe0
- Treatment
- nematode and bacterial treatmente0
- Interactor
- Meloidogyne javanicaMeloidogyne javanicat0pathogen
- Second interactor
- Xenorhabdus bovieniiXenorhabdus bovieniit0biocontrol_agent
- Outcome
- Soybean plant growthe0
- Direction
- unaffectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soybean plant growth was unaffected by nematode and bacterial treatment”
t0“Effect of Steinernema feltiae-Xenorhabdus bovienii insect pathogen complex on Meloidogyne javanica”
Claim · model-written summary
Infected soybean had lower biomass than uninfected soybean, without significant treatment differences.
- Taxon
- soybeanGlycine maxe0
- Treatment
- M. javanica-infectede0
- Interactor
- M. javanicaMeloidogyne javanicae0pathogen
- Outcome
- biomasse0
- Direction
- lowere0
- Comparator
- non-infected soybeane0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“biomass was lower in M. javanica-infected soybean, irrespective of treatment, than in non-infected soybean, but the differences between the treatments were non-significant.”
The same questions in other papers
infection · Meloidogyne javanica · Solanum lycopersicum (tomato)Results agree
5 papers in the same direction as this paper
- negative
- negative
- negative
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.