Abstract
Root-knot nematodes (Meloidogyne spp.) are soilborne pathogens that infect vegetable crops and cause major economic losses worldwide annually. Therefore, there is an urgent need for novel nematicides or biological control agents to reduce the damage caused by root-knot nematodes. In this study, we tested efficacy of the Bacillus cereus strain Bc-cm103, isolated from the rhizoplane of Cucumis metuliferus, against Meloidogyne incognita. Strain Bc-cm103 fermentation broth caused 100% mortality of the nematode second-stage juveniles within 12 h and decreased the egg hatching rate by 40.06% within 72 h compared with sterile water. Confocal laser-scanning microscopy revealed that strain Bc-cm103 formed a biofilm on cucumber (C. sativus) roots, which protected the roots from the infection of M. incognita. Additionally, strain Bc-cm103 activated the defense-responsive genes PR1, PR2, LOX1, and CTR1 in cucumber. Furthermore, strain Bc-cm103 significantly reduced the appearance of root galls in pot, split-root, and field tests. These results indicated that B. cereus strain Bc-cm103 had a strong suppressive effect on M. incognita and therefore could be used as a potential biocontrol agent against this pathogen.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 6
Claim · model-written summary
Bc-cm103 fermentation broth caused 100% mortality of M. incognita second-stage juveniles within 12 h
- Taxon
- cucumber (C. sativus)
Cucumis sativuse1 - Treatment
- Strain Bc-cm103 fermentation brothe5
- Interactor
- Meloidogyne incognita
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=60)
Meloidogyne incognitae0pathogen - Second interactor
- Bacillus cereus strain Bc-cm103
Bacillus cereuse0biocontrol_agent - Outcome
- mortality of the nematode second-stage juvenilese5
- Direction
- increaseinferrede5
- Value
- 100%e5
- Qualifier
- within 12 he5
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“In this study, we tested efficacy of the Bacillus cereus strain Bc-cm103, isolated from the rhizoplane of Cucumis metuliferus, against Meloidogyne incognita”
e1“Confocal laser-scanning microscopy revealed that strain Bc-cm103 formed a biofilm on cucumber (C. sativus) roots, which protected the roots from the infection of M. incognita”
e5“Strain Bc-cm103 fermentation broth caused 100% mortality of the nematode second-stage juveniles within 12 h”
Claim · model-written summary
Bc-cm103 fermentation broth decreased M. incognita egg hatching by 40.06% within 72 h compared with sterile water
- Taxon
- cucumber (C. sativus)Cucumis sativuse1
- Treatment
- Strain Bc-cm103 fermentation brothe5
- Interactor
- M. incognitaMeloidogyne incognitae1pathogen
- Second interactor
- strain Bc-cm103e1biocontrol_agent
- Outcome
- egg hatching ratee5
- Direction
- decreasede5
- Value
- 40.06%e5
- Qualifier
- within 72 he5
- Comparator
- sterile watere5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Confocal laser-scanning microscopy revealed that strain Bc-cm103 formed a biofilm on cucumber (C. sativus) roots, which protected the roots from the infection of M. incognita”
e5“Strain Bc-cm103 fermentation broth caused 100% mortality of the nematode second-stage juveniles within 12 h and decreased the egg hatching rate by 40.06% within 72 h compared with sterile water”
Claim · model-written summary
Strain Bc-cm103 biofilm on cucumber roots decreased M. incognita root infection
- Taxon
- cucumber (C. sativus)Cucumis sativuse1
- Treatment
- strain Bc-cm103e1
- Interactor
- M. incognitaMeloidogyne incognitae1pathogen
- Second interactor
- strain Bc-cm103e1biocontrol_agent
- Outcome
- infectione1
- Direction
- protectede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Confocal laser-scanning microscopy revealed that strain Bc-cm103 formed a biofilm on cucumber (C. sativus) roots, which protected the roots from the infection of M. incognita”
Claim · model-written summary
Strain Bc-cm103 activated defense-responsive genes PR1, PR2, LOX1 and CTR1 in cucumber
- Taxon
- cucumberCucumis sativuse2
- Treatment
- strain Bc-cm103e2
- Gene
- PR1, PR2, LOX1, and CTR1e2
- Outcome
- defense-responsive genese2
- Direction
- activatede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“strain Bc-cm103 activated the defense-responsive genes PR1, PR2, LOX1, and CTR1 in cucumber”
Claim · model-written summary
Strain Bc-cm103 significantly reduced root galls in pot, split-root and field tests
- Taxon
- cucumber (C. sativus)Cucumis sativuse1
- Treatment
- strain Bc-cm103e3
- Interactor
- M. incognitaMeloidogyne incognitae1pathogen
- Second interactor
- strain Bc-cm103e3biocontrol_agent
- Outcome
- appearance of root gallse3
- Direction
- reducede3
- Setting
- pot, split-root, and field testse3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Confocal laser-scanning microscopy revealed that strain Bc-cm103 formed a biofilm on cucumber (C. sativus) roots, which protected the roots from the infection of M. incognita”
e3“strain Bc-cm103 significantly reduced the appearance of root galls in pot, split-root, and field tests”
Claim · model-written summary
Bc-cm103 could be used as a potential biocontrol agent against M. incognita
- Taxon
- cucumber (C. sativus)Cucumis sativuse1
- Interactor
- M. incognitaMeloidogyne incognitae4pathogen
- Second interactor
- B. cereus strain Bc-cm103Bacillus cereuse4biocontrol_agent
- Outcome
- potential biocontrol agent against this pathogene4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Confocal laser-scanning microscopy revealed that strain Bc-cm103 formed a biofilm on cucumber (C. sativus) roots, which protected the roots from the infection of M. incognita”
e4“B. cereus strain Bc-cm103 had a strong suppressive effect on M. incognita and therefore could be used as a potential biocontrol agent against this pathogen”
The same questions in other papers
processing · Meloidogyne incognita · Cucumis sativus (cucumber)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
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.