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. 2024 Feb 29;206(3):131.
doi: 10.1007/s00203-024-03861-4.

Analysis of antimicrobial biological activity of a marine Bacillus velezensis NDB

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Analysis of antimicrobial biological activity of a marine Bacillus velezensis NDB

Ze Wang et al. Arch Microbiol. .

Abstract

A new strain of Bacillus velezensis NDB was isolated from Xiangshan Harbor and antibacterial test revealed antibacterial activity of this strain against 12 major pathogenic bacteria. The whole genome of the bacterium was sequenced and found to consist of a 4,214,838 bp circular chromosome and a 7410 bp circular plasmid. Furthermore, it was predicted by AntiSMASH and BAGEL4 to have 12 clusters of secondary metabolism genes for the synthesis of the inhibitors, fengycin, bacillomycin, macrolactin H, bacillaene, and difficidin, and there were also five clusters encoding potentially novel antimicrobial substances, as well as three bacteriocin biosynthesis gene clusters of amylocyclicin, ComX1, and LCI. qRT-PCR revealed significant up-regulation of antimicrobial secondary metabolite synthesis genes after 24 h of antagonism with pathogenic bacteria. Furthermore, MALDI-TOF mass spectrometry revealed that it can secrete surfactin non-ribosomal peptide synthase and polyketide synthase to exert antibacterial effects. GC-MS was used to analyze methanol extract of B. velezensis NDB, a total of 68 compounds were identified and these metabolites include 16 amino acids, 17 acids, 3 amines, 11 sugars, 11 alcohols, 1 ester, and 9 other compounds which can inhibit pathogenic bacteria by initiating the antibiotic secretion pathway. A comparative genomic analysis of gene families showed that the specificity of B. velezensis NDB was mainly reflected in environmental adaptability. Overall, this research on B. velezensis NDB provides the basis for elucidating its biocontrol effect and promotes its future application as a probiotic.

Keywords: Antibacterial activity; Bacteriostatic metabolites; Complete genome sequencing; Marine Bacillus velezensis.

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References

    1. Al-Ali A, Deravel J, Krier F, Béchet M, Jacques P (2017) Biofilm formation is determinant in tomato rhizosphere colonization by Bacillus velezensis FZB42. Environ Sci Pollut Res Int 25:1–11. https://doi.org/10.1007/s11356-017-0469-1 - DOI
    1. Alexandra S, Ricardo SM, Máximo G, Michael A (2021) The role of surfactin production by Bacillus velezensis on colonization, biofilm formation on tomato root and leaf surfaces and subsequent protection (ISR) against botrytis cinerea. Microorganisms 9(11):2251–2251. https://doi.org/10.3390/microorganisms9112251 - DOI
    1. Arguelles Arias A, Ongena M, Devreese B, Terrak M, Joris B, Fickers P (2013) Characterization of amylolysin, a novel lantibiotic from Bacillus amyloliquefaciens GA1. PLoS ONE 8:e83037. https://doi.org/10.1371/journal.pone.0083037 - DOI - PubMed - PMC
    1. Baharudin M, Ngalimat M, Mohd S, Balia Y, Karim M, Baharum SN, Sabri S (2021) Antimicrobial activities of Bacillus velezensis strains isolated from stingless bee products against methicillin-resistant Staphylococcus aureus. PLoS ONE 16(5):e0251514. https://doi.org/10.1371/journal.pone.0251514 - DOI - PubMed - PMC
    1. Blumenscheit C, Jähne J, Schneider A, Blom J, Schweder T, Lasch P, Borriss R (2022) Genome sequence data of Bacillus velezensis BP12A and BT24. Data Brief 41:107978. https://doi.org/10.1016/j.dib.2022.107978 - DOI - PubMed - PMC

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