Cell morphology governs directional control in swimming bacteria
نویسندگان
چکیده
منابع مشابه
A stochastic model for directional changes of swimming bacteria.
In this work we introduce a stochastic model to describe directional changes in the movement of swimming bacteria. We use the probability density function (PDF) of turn angles, measured on tumbling wild-type E. coli, to build a Langevin equation for the deflection of the bacterial body swimming in isotropic media. We have solved this equation analytically by means of the Green function method a...
متن کاملCell envelope morphology of rumen bacteria.
The cell walls of three species of rumen bacteria (Bacteroides ruminicola, Bacteroides succinogenes, and Megasphaera elsdenii) were studied by a variety of morphological methods. Although all the cells studied were gram-negative and had typical cytoplasmic membranes and outer membranes, great variation was observed in the thickness of their peptidoglycan layers. Megasphaera elsdenii evidenced a...
متن کاملCell Size Control in Bacteria
Like eukaryotes, bacteria must coordinate division with growth to ensure cells are the appropriate size for a given environmental condition or developmental fate. As single-celled organisms, nutrient availability is one of the strongest influences on bacterial cell size. Classic physiological experiments conducted over four decades ago first demonstrated that cell size is directly correlated wi...
متن کاملDirectional intracellular trafficking in bacteria.
I n their natural environments, bacteria often colonize biotic and abiotic surfaces, and the intimate association with biotic surfaces can be a prerequisite for pathogenesis. Once on a surface, cells may remain sessile and simply grow and divide. Alternatively, cells may display active cell movements and translocate across the surface by one of three different mechanisms: swarming, twitching, o...
متن کاملOrigins of individual swimming behavior in bacteria.
Cells in a cloned population of coliform bacteria exhibit a wide range of swimming behaviors--a form of non-genetic individuality. We used computer models to examine the proposition that these variations are due to differences in the number of chemotaxis signaling molecules from one cell to the next. Simulations were run in which the concentrations of seven gene products in the chemotaxis pathw...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Scientific Reports
سال: 2017
ISSN: 2045-2322
DOI: 10.1038/s41598-017-01565-y