Journal
BIOFOULING
Volume 35, Issue 2, Pages 143-158Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/08927014.2019.1575960
Keywords
Transcriptome; motile-to-sessile switch; adhesion; biofilms; Bacillus licheniformis
Funding
- National Natural Science Foundation of China [31772080]
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RNA sequencing was used to reveal transcriptional changes during the motile-to-sessile switch in high and low biofilm-forming dairy strains of B. licheniformis isolated from Chinese milk powders. A significant part of the whole gene content was affected during this transition in both strains. In terms of the Kyoto Encyclopedia of Genes and Genomes (KEGG) database, seven metabolic pathways were significantly downregulated in the planktonic state compared to the biofilm state in both strains. Lipid and sugar metabolism seemed to play an important role in matrix production. Several genes involved in adhesion, matrix production and the matrix coating were either absent or less expressed in the biofilm state of the low biofilm producer compared to the high biofilm producer. Genes related to sporulation and the production of extracellular polymeric substances were concomitantly expressed in the biofilm state of both strains. These comprehensive insights will be helpful for future research into mechanisms and targets.
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