منابع مشابه
Growth of the Escherichia coli cell surface.
Phage T6 was used as a label to follow the growth of the outer membrane in a strain of Escherichia coli temperature sensitive for the production of the T6 receptor. Extension of the surface takes place at the cell poles. Small cells extend at only one pole, whereas larger cells grow from both poles. The change from unipolar to bipolar growth appears to depend on the attainment of a particular c...
متن کاملBilinear cell growth of Escherichia coli.
Recent electron micrograph measurements of bacterial dimensions in exponentially growing cultures of Escherichia coli support a model of bilinear increase in cell surface area and volume, with a sharp doubling in growth rate at a discrete age during the cell cycle. The results also indicate coordinate regulation of increase of surface area and volume.
متن کاملEscherichia coli intracellular pH, membrane potential, and cell growth.
We studied the changes in various cell functions during the shift to alkaline extracellular pH in wild-type Escherichia coli and in strain DZ3, a mutant defective in pH homeostasis. A rapid increase in membrane potential (delta psi) was detected in both the wild type and the mutant immediately upon the shift, when both cell types failed to control intracellular pH. Upon reestablishment of intra...
متن کاملThymoquinone Inhibits Escherichia coli ATP Synthase and Cell Growth
We examined the thymoquinone induced inhibition of purified F1 or membrane bound F1FO E. coli ATP synthase. Both purified F1 and membrane bound F1FO were completely inhibited by thymoquinone with no residual ATPase activity. The process of inhibition was fully reversible and identical in both membrane bound F1Fo and purified F1 preparations. Moreover, thymoquinone induced inhibition of ATP synt...
متن کاملRobust Growth of Escherichia coli
The quantitative study of the cell growth has led to many fundamental insights in our understanding of a wide range of subjects, from the cell cycle to senescence. Of particular importance is the growth rate, whose constancy represents a physiological steady state of an organism. Recent studies, however, suggest that the rate of elongation during exponential growth of bacterial cells decreases ...
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ژورنال
عنوان ژورنال: Biophysical Journal
سال: 1968
ISSN: 0006-3495
DOI: 10.1016/s0006-3495(68)86521-x