Bacillus velezensis LSR7: A Biocontrol Agent Against Rubber Red Root Rot Disease
Author Information
Author(s): Meng Xiangjia, Cai Haibin, Luo Youhong, Zhao Xinyang, Fu Yongwei, Zou Lifang, Zhou Yi, Tu Min, Vujanovic Vladimir
Primary Institution: National Key Laboratory for Tropical Crop Breeding, Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences
Hypothesis
Can Bacillus velezensis LSR7 effectively control the fungal pathogen Ganoderma pseudoferreum causing red root rot disease in rubber trees?
Conclusion
Bacillus velezensis LSR7 shows significant potential as a biocontrol agent against red root rot disease in rubber trees, inhibiting the pathogen and promoting plant growth.
Supporting Evidence
- Strain LSR7 inhibited Ganoderma pseudoferreum with an inhibition rate of 88.49%.
- LSR7 significantly promoted rubber tree seedling growth at concentrations of 108 CFU/mL.
- LSR7 produced various hydrolytic enzymes and secondary metabolites that contribute to its antifungal activity.
- Genome analysis confirmed LSR7 as Bacillus velezensis, indicating its potential for biocontrol.
Takeaway
Scientists found a helpful bacteria called LSR7 that can stop a disease in rubber trees and help them grow better.
Methodology
The study involved isolating endophytic bacteria from healthy rubber tree tissues, screening for antifungal activity against Ganoderma pseudoferreum, and evaluating the biocontrol efficacy and mechanisms in greenhouse conditions.
Limitations
The study primarily focused on a single bacterial strain and its effects in controlled greenhouse conditions, which may not fully represent field conditions.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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