Membrane Lipid Biogenesis
In order to maintain a fluid lipid bilayer in the cell membrane, microorganisms must adjust to environmental conditions including the ambient temperature, pressure, and the presence of solutes that affect the physical state of the membrane. Although the types of amphipathic lipids present in the cell membrane can vary widely between species, the variety of adjustments made, including changes in the compositions of the hydrocarbon chains and the polar headgroups, appear to obey certain rules. The regulation of lipid biosynthesis to adapt to the cellular environment will be discussed in this chapter.
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