Abstract
Bacillus subtilis XF-1 is a gram-positive, plant-associated bacterium that stimulates plant growth and produces secondary metabolites that suppress soil-borne plant pathogens. In particular, it is especially highly efficient at controlling the clubroot disease of cruciferous crops. Its 4,061,186-bp genome contains an estimated 3853 protein-coding sequences and the 1155 genes of XF-1 are present in most genome-sequenced Bacillus strains: 3757 genes in B. subtilis 168, and 1164 in B. amyloliquefaciens FZB42. Analysis using the Cluster of Orthologous Groups database of proteins shows that 60 genes control bacterial mobility, 221 genes are related to cell wall and membrane biosynthesis, and more than 112 are genes associated with secondary metabolites. In addition, the genes contributed to the strain’s plant colonization, bio-control and stimulation of plant growth. Sequencing of the genome is a fundamental step for develo** a desired strain to serve as an efficient biological control agent and plant growth stimulator. Similar to other members of the taxon, XF-1 has a genome that contains giant gene clusters for the non-ribosomal synthesis of antifungal lipopeptides (surfactin and fengycin), the polyketides (macrolactin and bacillaene), the siderophore bacillibactin, and the dipeptide bacilysin. There are two synthesis pathways for volatile growth-promoting compounds. The expression of biosynthesized antibiotic peptides in XF-1 was revealed by matrix-assisted laser desorption/ionization-time of flight mass spectrometry.
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Acknowledgments
We thank the Ministry of Agriculture, China, and the Department of Science and Technologies, Yunnan Province, China, for their financial support through the Special Fund for Agroscientific Research in the Public Interest (201003029) and the Natural Science Foundation of Yunnan Province (2008CC024).
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Guo, S., Li, X., He, P. et al. Whole-genome sequencing of Bacillus subtilis XF-1 reveals mechanisms for biological control and multiple beneficial properties in plants. J Ind Microbiol Biotechnol 42, 925–937 (2015). https://doi.org/10.1007/s10295-015-1612-y
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DOI: https://doi.org/10.1007/s10295-015-1612-y