期刊
JOURNAL OF BASIC MICROBIOLOGY
卷 62, 期 5, 页码 584-592出版社
WILEY
DOI: 10.1002/jobm.202200054
关键词
Escherichia coli; flagellar motor; L-fucose; swimming motility
类别
资金
- National Natural Science Foundation of China [11804072, 31801114]
- Natural Science Foundation of Anhui Province [1808085QC64]
L-fucose, a monosaccharide, plays a crucial role in bacterial colonization. It affects the swimming motility of bacteria, resulting in decreased movement and increased tumble frequency. Additionally, L-fucose promotes bacterial surface aggregation and adhesion.
L-Fucose, as a monosaccharide in nature, plays a crucial role in bacteria colonization. Escherichia coli (E. coli), as a common microorganism in environment, utilize bacterial flagellar motor to drive the rotation of flagella, which is regulated by chemotactic signal transduction signals. Yet the effect of L-fucose to bacterial motility remains unclear. The effect of L-fucose on the swimming motility of bacteria was investigated from the level of single flagellar motor to individual cell and cell population by employing a bead assay, a high-throughput 2D tracking assay and a high-throughput dark-field flicker microscopy. The results showed that the swimming motility of the bacteria cultured with L-fucose was decreased, while the tumble frequency increased. Furthermore, the behavioral alterations of bacteria affected by L-fucose were directly reveled by measuring the cell distribution of bacteria swimming near surfaces and bacterial surface adhesion, suggesting that L-fucose promotes bacterial surface aggregation and surface adhesion. The effect of l-fucose on bacterial swimming motility characterized in this study are consistent with the key role that L-fucose plays in bacterial colonization.
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