Claim · model-written summary
The Bacillus pumilus LP-823 lipopeptides were identified as surfactin variants with fatty acid chains ranging from C14 to C19.
- Taxon
- Bacillus pumilusBacillus pumilust1
- Outcome
- surfactin variants with fatty acid chains ranging from C14 to C19e0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Verbatim
t1“Bacillus pumilus”
e0“identified the lipopeptides as surfactin variants with fatty acid chains ranging from C14 to C19”
Title
Zheng Chen; Junjie Feng; Tao Lin; et al. BMC Microbiology 2026. doi:10.1186/s12866-026-05278-z
Other claims from this paper (13)
- Intervention effect In pot experiments, treatment with LP-823 lipopeptides significantly suppressed tomato bacterial wilt development.
- Intervention effect LP-823 lipopeptide treatment delayed symptom onset by four days.
- Intervention effect LP-823 lipopeptide treatment reduced final disease incidence by 29.63% at 20 days post-inoculation.
- Intervention effect LP-823 lipopeptide treatment reduced the final disease index by 36.19% at 20 days post-inoculation.
- Intervention effect The lipopeptides exhibited no direct antibacterial activity in vitro.
- Intervention effect Phenylalanine ammonia-lyase activity increased markedly after lipopeptide treatment, peaking at 36 h with a 5.7-fold increase.
- Intervention effect Polyphenol oxidase activity increased markedly after lipopeptide treatment, peaking at 36 h with a 6.8-fold increase.
- Intervention effect Lipopeptide treatment downregulated AOX1a and CAT2, modulating ROS homeostasis.
- Intervention effect Lipopeptide treatment upregulated ABI2 in ABA signaling.
- Intervention effect Lipopeptide treatment downregulated ZEP in ABA signaling.
- Intervention effect Lipopeptide treatment suppressed expression of aquaporin PIP2-1.
- Intervention effect Lipopeptide treatment redirected phenylpropanoid metabolism.
- Mechanism The authors conclude that the LP-823 lipopeptide is a potent elicitor of induced systemic resistance in tomato.