Morphological changes of Aeromonas hydrophila in response to osmotic stress

Engineering global transcription factor cyclic AMP receptor protein of Escherichia coli for improved 1-butanol tolerance

“…Cell elongation is a common phenomenon observed when microorganisms adapt themselves to stressful environment (Pianetti et al 2009;Shi and Xia 2003). Furthermore, cell elongation would lead to reduction in cell surface with respect to its volume (Neumann et al 2005), which could also lower the possibility of toxic 1-butanol attaching to the cell surface.…”

Cell surface properties of Lactobacillus salivarius under osmotic stress

“…Normal and treated specimens were processed for SEM according to conventional procedures [24]. The pellets were washed and immediately fixed with 2% glutaraldehyde in 0.15 mol l -1 phosphate buffer (pH 7.2) for 1.5 h, cells were washed and postfixed with 2% osmium tetroxide in the same buffer and subsequently dehydrated in a graded series of ethyl alcohol, followed by specimen critical point drying.…”

Heat and phosphate starvation effects on the proteome, morphology and chemical composition of the biomining bacteria Acidithiobacillus ferrooxidans

“…Thus, in this work, three different approaches, namely, scanning electronic microscopy, FT-IR spectroscopy and proteome analysis, were used to investigate morphological changes, alterations in the chemical composition and in the protein profile of A. ferrooxidans LR cells subjected to such conditions. These analyses rely on the possibility of bacterial cell shape being affected by stress, which indicates that morphological changes are correlated to adaptive mechanisms that enable the cells to survive (Pianetti et al 2009). Additionally, FT-IR, a method which measures the overall composition of a sample by detecting the molecular vibrations and other motions of chemical bonds, can be used to characterize modifications in cells grown in different conditions.…”