Insights into effects of salt stress on the oil-degradation capacity, cell response, and key metabolic pathways of Bacillus sp. YM1 isolated from oily food waste compost

Metabolic and Morphological Aspects of Adaptation of Alkaliphilic Bacillus aequororis 5‐DB and Alkali‐Tolerant Bacillus subtilis ATCC 6633 to Changes in pH and Mineralization

“…YM1 to increased salt concentrations. It was shown that in a medium with 30–50 g/L salt, the cell surface was strongly wrinkled, sticky secretions appeared on the cell surface, and sporulation increased, but the shape and size of the cells did not change significantly [ 6 ]. The adaptation of alkaliphilic bacilli has been studied in detail, mainly from the point of view of energetics.…”

“…The effect of pH has been studied mostly in terms of its impact on growth rate [ 10 ], while the morphological responses of bacilli, ATP content, and dehydrogenases activity are poorly understood. Zhang et al studied the expression of bacilli stress genes under salt stress [ 6 ]; however, there are insufficient data on the combined effects of high salt concentrations and high pH on bacilli metabolism and morphology. In this study, we studied the effect of pH and high NaCl concentration on the metabolic intensity and ATP content of bacilli cells from both the log phase of growth and the stationary phase under starvation conditions and with the addition of glucose.…”