Abstract
Abstract Fusarium-infected wheat seed decreases germination, seedling emergence, and causes post emergence seedling death, and can contribute to wheat scab and ear rot of maize, with consequent production of mycotoxins such as deoxynivalenol and zearalenone. Current seed treatments have proved ineffective in controlling seedling blight and scab. A patented endophytic bacterial strain, Bacillus mojavensis RRC 101, and several other strains of this species were studied to determine in vitro antagonism to some Fusarium species and to assess the potential of this bacterium to serve as an endophytic biocontrol for seedling blight of wheat produced by species within the F. graminearum complex, as well as other species of Fusarium. Seedling emergence and seed germination were two tests used as indicators of seedling blight. These tests were conducted in growth rooms with two wheat cultivars highly susceptible to scab, Norm and Pioneer 2552, and other cultivars with varying resistance to scab. The results indicated that all strains of this bacterium were antagonistic in vitro to the strains of F. graminearum and its seven related species, as well as four strains of F. pseudograminearum and the two strains of F. verticillioides. Germination of the highly scab susceptible cultivar 2552 was increased from 77 to 97% when planted in soil containing a mixed inoculum of F. graminearum and related species. Seedling emergence in the very susceptible wheat cultivar Norm increased from 20 to 82% when treated with the bacterium. The data indicated that inoculating wheat kernels with B. mojavensis reduced seedling blight of wheat produced by F. graminearum and related Fusarium species indicating the potential for this bacterium as a biocontrol under field condition.
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Claims 4
Claim · model-written summary
Bacillus mojavensis strains antagonized the tested Fusarium strains in vitro.
- Taxon
- Bacillus mojavensisBacillus mojavensist0
- Interactor
- F. graminearum
_on_Corn_(Zea_mays)_at_Waimea%2C_Hawaii.jpg?width=60)
Fusarium graminearume0 - Outcome
- antagonistic in vitroe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_on_Corn_(Zea_mays)_at_Waimea%2C_Hawaii.jpg?width=500)
Verbatim
e0“all strains of this bacterium were antagonistic in vitro to the strains of F. graminearum and its seven related species, as well as four strains of F. pseudograminearum and the two strains of F. verticillioides”
t0“Bacillus mojavensis”
Claim · model-written summary
Bacterial treatment increased cultivar 2552 germination from 77 to 97% in Fusarium infested soil.
- Taxon
- wheat
Triticum aestivumt0 - Material
- 2552e0
- Treatment
- mixed inoculum of F. graminearum and related speciese0
- Interactor
- F. graminearumFusarium graminearume0pathogen
- Outcome
- Germinatione0
- Direction
- increasede0
- Value
- 77 to 97%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Germination of the highly scab susceptible cultivar 2552 was increased from 77 to 97% when planted in soil containing a mixed inoculum of F. graminearum and related species”
t0“wheat”
Claim · model-written summary
Bacterial treatment increased emergence of cultivar Norm from 20 to 82%.
- Taxon
- wheatTriticum aestivume0
- Material
- Norme0
- Treatment
- the bacteriume0
- Outcome
- Seedling emergencee0
- Direction
- increasede0
- Value
- 20 to 82%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seedling emergence in the very susceptible wheat cultivar Norm increased from 20 to 82% when treated with the bacterium”
Claim · model-written summary
Inoculating wheat kernels with B. mojavensis reduced seedling blight caused by Fusarium.
- Taxon
- wheatTriticum aestivume0
- Treatment
- inoculating wheat kernels with B. mojavensise0
- Interactor
- F. graminearumFusarium graminearume0pathogen
- Second interactor
- B. mojavensisBacillus mojavensise0biocontrol_agent
- Outcome
- seedling blight of wheate0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inoculating wheat kernels with B. mojavensis reduced seedling blight of wheat produced by F. graminearum and related Fusarium species”
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