Abstract
Ralstonia solanacearum and Meloidogyne incognita are two soilborne pathogens that cause serious damage and great losses in the production of tomato. For this purpose, a bacterial isolate, Bacillus thuringiensis CR-371, and an actinomyces isolate, Streptomyces avermectinius NBRC14893, were examined for their ability to protect tomato from root-knot nematode and bacterial wilt diseases under glasshouse conditions. Treatment of tomato roots with B. thuringiensis CR-371 and S. avermectinius NBRC14893 followed by challenge inoculation with R. solanacearum and M. incognita significantly decreased disease severity of bacterial wilt alone, root-knot nematode alone, or mixed infection by both pathogens compared to the control. Furthermore, pretreatment of tomato roots with B. thuringiensis CR-371 and S. avermectinius NBRC14893 significantly reduced bacterial proliferation of R. solanacearum both in pathogen alone inoculated plants and in plants co-inoculated with R. solanacearum and M. incognita. In conclusion, our results suggest that the treatment of tomato roots with B. thuringiensis CR-371 and S. avermectinius NBRC14893 simultaneously suppresses bacterial wilt and root-knot nematode diseases. Therefore, B. thuringiensis CR-371 and S. avermectinius NBRC14893 could provide new options for integrated pest management strategies against plant diseases, especially against bacterial-nematode disease complexes that cause synergistic yield losses.
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Claims 6
Claim · model-written summary
Combined microbial root treatment reduced bacterial wilt severity versus control.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- B. thuringiensis CR-371 and S. avermectinius NBRC14893e0
- Interactor
- R. solanacearum
Ralstonia solanacearume0pathogen - Second interactor
- B. thuringiensis CR-371
Bacillus thuringiensise0biocontrol_agent - Outcome
- disease severity of bacterial wilt alonee0
- Direction
- decreasede0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment of tomato roots with B. thuringiensis CR-371 and S. avermectinius NBRC14893 followed by challenge inoculation with R. solanacearum and M. incognita significantly decreased disease severity of bacterial wilt alone, root-knot nematode alone, or mixed infection by both pathogens compared to the control.”
Claim · model-written summary
Combined microbial root treatment reduced root-knot disease severity versus control.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- B. thuringiensis CR-371 and S. avermectinius NBRC14893e0
- Interactor
- M. incognita
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=60)
Meloidogyne incognitae0pathogen - Second interactor
- S. avermectinius NBRC14893
Streptomyces avermitilise0biocontrol_agent - Outcome
- root-knot nematode alonee0
- Direction
- decreasede0
- Comparator
- the 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“Treatment of tomato roots with B. thuringiensis CR-371 and S. avermectinius NBRC14893 followed by challenge inoculation with R. solanacearum and M. incognita significantly decreased disease severity of bacterial wilt alone, root-knot nematode alone, or mixed infection by both pathogens compared to the control.”
Claim · model-written summary
Combined microbial root treatment reduced severity of mixed infection versus control.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- B. thuringiensis CR-371 and S. avermectinius NBRC14893e0
- Interactor
- R. solanacearumRalstonia solanacearume0pathogen
- Second interactor
- M. incognitaMeloidogyne incognitae0pathogen
- Outcome
- mixed infection by both pathogense0
- Direction
- decreasede0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment of tomato roots with B. thuringiensis CR-371 and S. avermectinius NBRC14893 followed by challenge inoculation with R. solanacearum and M. incognita significantly decreased disease severity of bacterial wilt alone, root-knot nematode alone, or mixed infection by both pathogens compared to the control.”
Claim · model-written summary
Pretreatment reduced R. solanacearum proliferation in singly inoculated tomato.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- B. thuringiensis CR-371 and S. avermectinius NBRC14893e0
- Interactor
- R. solanacearumRalstonia solanacearume0pathogen
- Second interactor
- B. thuringiensis CR-371Bacillus thuringiensise0biocontrol_agent
- Outcome
- bacterial proliferation of R. solanacearume0
- Direction
- reducede0
- Qualifier
- pathogen alone inoculated plantse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pretreatment of tomato roots with B. thuringiensis CR-371 and S. avermectinius NBRC14893 significantly reduced bacterial proliferation of R. solanacearum both in pathogen alone inoculated plants and in plants co-inoculated with R. solanacearum and M. incognita.”
Claim · model-written summary
Pretreatment reduced R. solanacearum proliferation in coinoculated tomato.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- B. thuringiensis CR-371 and S. avermectinius NBRC14893e0
- Interactor
- R. solanacearumRalstonia solanacearume0pathogen
- Second interactor
- M. incognitaMeloidogyne incognitae0pathogen
- Outcome
- bacterial proliferation of R. solanacearume0
- Direction
- reducede0
- Qualifier
- plants co-inoculated with R. solanacearum and M. incognitae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pretreatment of tomato roots with B. thuringiensis CR-371 and S. avermectinius NBRC14893 significantly reduced bacterial proliferation of R. solanacearum both in pathogen alone inoculated plants and in plants co-inoculated with R. solanacearum and M. incognita.”
Claim · model-written summary
The authors propose both isolates for integrated management of bacterial–nematode disease complexes.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- integrated pest management strategies against plant diseasese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“B. thuringiensis CR-371 and S. avermectinius NBRC14893 could provide new options for integrated pest management strategies against plant diseases, especially against bacterial-nematode disease complexes”
t0“tomato”
The same questions in other papers
Bacillus thuringiensis · Ralstonia solanacearum · Solanum lycopersicum (tomato)Results agree
1 paper in the same direction as this paper
- positive
Bacillus thuringiensis · Meloidogyne incognita · Solanum lycopersicum (tomato)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 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.