Abstract
Bacillus vallismortis EXTN-1, a biocontrol agent in cucumber, tomato and potato was tested in rice pathosystem against rice fungal pathogens viz. Magnaporthe grisea, Rhizoctonia solani and Cochliobolus miyabeanus. Apart from increasing the yield in the bacterized plants (11.6-12.6% over control), the study showed that EXTN1 is effective in bringing about disease suppression against all the tested fungal pathogens. EXTN-l treatment resulted in 52.11% reduction in rice blast, 83.02% reduction in sheath blight and 11.54% decrease in brown spot symptoms. As the strain is proven as an inducer for systemic resistance based on PR gene expression in Arabidopsis and tobacco models, it is supposed that a similar mechanism works in rice, bringing about disease suppression. The strain could be used as a potent biocontrol and growth-promoting agent in rice cropping system.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc. 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 5
Claim · model-written summary
Bacterized rice yielded 11.6-12.6% more than controls.
- Taxon
- Rice
Oryza sativat0
- Treatment
- bacterized plantse0
- Interactor
- Bacillus vallismortis EXTN-1Bacillus vallismortise1biocontrol_agent
- Outcome
- yielde0
- Direction
- increasinge0
- Value
- 11.6-12.6%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increasing the yield in the bacterized plants (11.6-12.6% over control)”
t0“Rice”
e1“Bacillus vallismortis EXTN-1, a biocontrol agent”
Claim · model-written summary
EXTN-1 reduced rice blast by 52.11%.
- Taxon
- Rice
Oryza sativat0
- Treatment
- EXTN-l treatmente0
- Interactor
- Magnaporthe grisea
Pyricularia griseae1pathogen - Second interactor
- Bacillus vallismortis EXTN-1Bacillus vallismortise2biocontrol_agent
- Outcome
- rice blaste0
- Direction
- reductione0
- Value
- 52.11%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“EXTN-l treatment resulted in 52.11% reduction in rice blast”
e1“Magnaporthe grisea, Rhizoctonia solani and Cochliobolus miyabeanus”
e2“Bacillus vallismortis EXTN-1, a biocontrol agent”
t0“Rice”
Claim · model-written summary
EXTN-1 reduced rice sheath blight by 83.02%.
- Taxon
- Rice
Oryza sativat0
- Treatment
- EXTN-l treatmente3
- Interactor
- Rhizoctonia solani
Rhizoctonia solanie1pathogen - Second interactor
- Bacillus vallismortis EXTN-1Bacillus vallismortise2biocontrol_agent
- Outcome
- sheath blighte0
- Direction
- reductione0
- Value
- 83.02%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“83.02% reduction in sheath blight”
e1“Magnaporthe grisea, Rhizoctonia solani and Cochliobolus miyabeanus”
e2“Bacillus vallismortis EXTN-1, a biocontrol agent”
e3“EXTN-l treatment resulted in 52.11% reduction in rice blast”
t0“Rice”
Claim · model-written summary
EXTN-1 decreased rice brown spot symptoms by 11.54%.
- Taxon
- Rice
Oryza sativat0
- Treatment
- EXTN-l treatmente3
- Interactor
- Cochliobolus miyabeanus
Bipolaris oryzaee1pathogen - Second interactor
- Bacillus vallismortis EXTN-1Bacillus vallismortise2biocontrol_agent
- Outcome
- brown spot symptomse0
- Direction
- decreasee0
- Value
- 11.54%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“11.54% decrease in brown spot symptoms”
e1“Magnaporthe grisea, Rhizoctonia solani and Cochliobolus miyabeanus”
e2“Bacillus vallismortis EXTN-1, a biocontrol agent”
e3“EXTN-l treatment resulted in 52.11% reduction in rice blast”
t0“Rice”
Claim · model-written summary
The authors propose using EXTN-1 as a biocontrol and growth-promoting agent in rice cropping.
- Taxon
- rice
Oryza sativae0
- Interactor
- Bacillus vallismortis EXTN-1Bacillus vallismortise1biocontrol_agent
- Outcome
- biocontrol and growth-promoting agent in rice cropping systeme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The strain could be used as a potent biocontrol and growth-promoting agent in rice cropping system.”
e1“Bacillus vallismortis EXTN-1, a biocontrol agent”