Exposure to lysed bacteria can promote or inhibit growth of neighboring live bacteria depending on local abiotic conditions

Fokko Smakman & Alex R Hall
Abstract Microbial death is extremely common in nature, yet the ecological role of dead bacteria is unclear. Dead cells are assumed to provide nutrients to surrounding microbes, but may also affect them in other ways. We found that adding lysate prepared from dead bacteria to cultures of Escherichia coli in nutrient-rich conditions suppressed their final population density. This is in stark contrast with the notion that the primary role of dead cells is nutritional, although...
1 citation reported since publication in 2022.
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