Homeoviscous adaptation, growth rate, and morphogenesis in bacteria.
Fluorescence polarization, P, of 1,6-diphenyl-1,3,5-hexatriene was studied in Escherichia coli B/r. Modification of nutritional conditions was not compensated by homeoviscous adaptation, demonstrated to exist for temperature variations. Cell diameter, which is known also to vary with nutrition but not with temperature, was found to be positively correlated with 1/P, and may therefore be regulated by membrane lipid order and fluidity.
D003470:Culture Media; D004161:Diphenylhexatriene; D004926:Escherichia coli / Q000254:growth & development* / Q000502:physiology; D009024:Morphogenesis; D013050:Spectrometry, Fluorescence; D014783:Viscosity
D003470:Culture Media; D004161:Diphenylhexatriene