Using Bacillus amyloliquefaciens SFB-1 to Control Sweetpotato Black Rot
Author Information
Author(s): Gao Fangyuan, Zhou Xiaosi, Yang Dongjing, Chen Jingwei, Kgosi Veronica Tshegofatso, Zhang Chengling, Ma Jukui, Tang Wei, Liang Zhao, Sun Houjun
Primary Institution: Key Laboratory of Biology and Genetic Improvement of Sweetpotato, Xuzhou Institute of Agricultural Sciences, China
Hypothesis
Can Bacillus amyloliquefaciens SFB-1 effectively control sweetpotato black rot caused by Ceratocystis fimbriata?
Conclusion
Bacillus amyloliquefaciens SFB-1 shows significant potential as a biocontrol agent against sweetpotato black rot.
Supporting Evidence
- Bacillus amyloliquefaciens SFB-1 inhibited C. fimbriata mycelial growth by up to 81.01%.
- The cell-free supernatant of SFB-1 suppressed C. fimbriata growth.
- SFB-1 treatments reduced lesion diameter and depth on sweetpotato roots by over 50%.
- Transcriptomic analysis identified 1164 differentially expressed genes in C. fimbriata after SFB-1 treatment.
Takeaway
This study found that a type of bacteria called Bacillus amyloliquefaciens SFB-1 can help stop a disease that affects sweetpotatoes, making them healthier.
Methodology
The study used in vitro assays to assess the antifungal activity of SFB-1 against C. fimbriata, including mycelial inhibition and spore germination tests, along with pathogenicity assays on sweetpotato roots.
Limitations
The study does not address the long-term effects of using SFB-1 in field conditions or its interactions with other biocontrol agents.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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