Abstract
The interactions of Meloidogyne javanica, Rotylenchulus reniformis, and Rhizobium sp. on cowpea seedlings were investigated. Upon simultaneous inoculation with the two nematode species, M. javanica invaded first but did not affect root invasion by R. reniformis. M. javanica populations increased less in competition with R. reniformis than when present alone. Preinvasion by R. renilormis significantly suppressed the number of M. javanica in the roots. Inoculation of M. javanica and/or R. reniformis with rhizobia did not affect nodulation. Nodule formation was hindered only when R. reniformis infection preceded rhizobial inoculation. Nitrogen nodules were formed on M. javanica galls. Nodules and M. javanica galls served as infection sites for both nematodes. Although R. reniIormis on the roots reduced the space for M. javanica infection, M. javanica is more competitive than R. reniformis and ultimately predominates as a result of its higher reproductive potential and shorter time spent in the soil before infection.
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Claims 7
Claim · model-written summary
Simultaneous inoculation with M. javanica did not affect root invasion by R. reniformis on cowpea.
- Taxon
- cowpea
Vigna unguiculatae0 - Treatment
- simultaneous inoculation with the two nematode speciese1
- Interactor
- R. reniformis
Rotylenchulus reniformise1pathogen - Second interactor
- M. javanicaMeloidogyne javanicae1pathogen
- Outcome
- root invasion by R. reniformise1
- Direction
- did not affecte1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The interactions of Meloidogyne javanica, Rotylenchulus reniformis, and Rhizobium sp. on cowpea seedlings were investigated”
e1“Upon simultaneous inoculation with the two nematode species, M. javanica invaded first but did not affect root invasion by R. reniformis”
Claim · model-written summary
M. javanica invaded the cowpea roots first in simultaneous inoculation.
- Taxon
- cowpeaVigna unguiculatae0
- Interactor
- M. javanicaMeloidogyne javanicae1pathogen
- Outcome
- M. javanica invaded firste1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The interactions of Meloidogyne javanica, Rotylenchulus reniformis, and Rhizobium sp. on cowpea seedlings were investigated”
e1“Upon simultaneous inoculation with the two nematode species, M. javanica invaded first but did not affect root invasion by R. reniformis”
Claim · model-written summary
M. javanica populations increased less on cowpea in competition with R. reniformis than when present alone.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- in competition with R. reniformise2
- Interactor
- M. javanicaMeloidogyne javanicae2pathogen
- Second interactor
- R. reniformisRotylenchulus reniformise2pathogen
- Outcome
- M. javanica populationse2
- Direction
- increased lesse2
- Comparator
- when present alonee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The interactions of Meloidogyne javanica, Rotylenchulus reniformis, and Rhizobium sp. on cowpea seedlings were investigated”
e2“M. javanica populations increased less in competition with R. reniformis than when present alone”
Claim · model-written summary
Inoculation with rhizobia did not affect nodulation of cowpea when either nematode was present.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- Inoculation of M. javanica and/or R. reniformis with rhizobiae5
- Second interactor
- R. reniformisRotylenchulus reniformise5pathogen
- Outcome
- nodulatione5
- Direction
- did not affecte5
RhizobiumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The interactions of Meloidogyne javanica, Rotylenchulus reniformis, and Rhizobium sp. on cowpea seedlings were investigated”
e5“Inoculation of M. javanica and/or R. reniformis with rhizobia did not affect nodulation”
Claim · model-written summary
R. reniformis infection preceding rhizobial inoculation hindered nodule formation on cowpea.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- R. reniformis infection preceded rhizobial inoculatione6
- Interactor
- R. reniformisRotylenchulus reniformise6pathogen
- Outcome
- Nodule formatione6
- Direction
- hinderede6
- Qualifier
- only whene6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The interactions of Meloidogyne javanica, Rotylenchulus reniformis, and Rhizobium sp. on cowpea seedlings were investigated”
e6“Nodule formation was hindered only when R. reniformis infection preceded rhizobial inoculation”
Claim · model-written summary
Nitrogen nodules were formed on M. javanica galls of cowpea.
- Taxon
- cowpeaVigna unguiculatae0
- Organ / stage
- M. javanica gallse7
- Interactor
- M. javanicaMeloidogyne javanicae7pathogen
- Outcome
- Nitrogen nodules were formede7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The interactions of Meloidogyne javanica, Rotylenchulus reniformis, and Rhizobium sp. on cowpea seedlings were investigated”
e7“Nitrogen nodules were formed on M. javanica galls. Nodules and M. javanica galls served as infection sites for both nematodes”
Claim · model-written summary
Nodules and M. javanica galls on cowpea served as infection sites for nematodes.
- Taxon
- cowpeaVigna unguiculatae0
- Organ / stage
- Nodules and M. javanica gallse7
- Interactor
- M. javanicaMeloidogyne javanicae7pathogen
- Outcome
- infection sitese7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The interactions of Meloidogyne javanica, Rotylenchulus reniformis, and Rhizobium sp. on cowpea seedlings were investigated”
e7“Nitrogen nodules were formed on M. javanica galls. Nodules and M. javanica galls served as infection sites for both nematodes”
The same questions in other papers
inoculation · symbiosis · Vigna unguiculata (cowpea)Results differ
11 papers in the same direction as this paper · 57 in the opposite direction
- positive
- positive
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1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
inoculation · Rhizobium · Vigna unguiculata (cowpea)Positive and negative results
17 in the opposite direction
- positive
- positive
- positive
14 papers more in this group
See all 18 papers →infection · symbiosis · Vigna unguiculata (cowpea)Results agree
1 paper in the same direction as this paper
- no effect
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.