Results 211 to 220 of about 111,040 (251)
Some of the next articles are maybe not open access.
Bacterial motility: machinery and mechanisms
Nature Reviews Microbiology, 2021Bacteria have developed a large array of motility mechanisms to exploit available resources and environments. These mechanisms can be broadly classified into swimming in aqueous media and movement over solid surfaces. Swimming motility involves either the rotation of rigid helical filaments through the external medium or gyration of the cell body in ...
Navish Wadhwa +2 more
exaly +3 more sources
Bacterial Motility and the Bacterial Flagellar Motor
Annual Review of Biophysics and Bioengineering, 1984Bacteria are exposed to a wide range of environments, some hostile, some benign. Because of their small size and simple structure, their ability to modify their environment is quite limited. The dominant strategy that has evolved, therefore, is selective motion toward environments that enhance the prospects for survival.
R M, Macnab, S, Aizawa
openaire +3 more sources
A field guide to bacterial swarming motility [PDF]
Nature Reviews Microbiology, 2010 How bacteria regulate, assemble and rotate flagella to swim in liquid media is reasonably well understood. Much less is known about how some bacteria use flagella to move over the tops of solid surfaces in a form of movement called swarming. The focus of bacteriology is changing from planktonic to surface environments, and so interest in swarming ...
Daniel B Kearns, Kearns Daniel B
exaly +3 more sources
Gastrointestinal motility disorders and bacterial overgrowth
Journal of Internal Medicine, 1995Abstract.Data on the relationship between small intestinal motility, absorption, and nutrition are sparse and incomplete. Yet, impaired motility is considered to be a plausible cause of bacterial overgrowth, which may have deleterious effects on digestion and absorption.
E Husebye
exaly +3 more sources
Bacterial effect on sperm motility
Urology, 1975Human semen containing normal number of sperm was exposed to concentrations of Escherichia coli varying from 500 to 10-8 colonies per cubic centimeter. A significant decrease in motility was abserved at 10-6 colonies per cubic centimeter.
G B, del Porto +2 more
openaire +2 more sources
Bacterial Flagella and Motility
Nature, 1948Flagella, and especially bacterial flagella, have been thoroughly investigated during the past decade. Before that they were rather taken for granted. This awakening of interest was largely due to the electron microscope referred to as the EM) which made them more real, and revealed new features, without solving their mysteries. Perhaps also, as Knaysi
openaire +3 more sources
Actin-based bacterial motility
Current Opinion in Cell Biology, 1995Listeria monocytogenes and other bacterial pathogens move in the host cell cytoplasm, propelled by continuous actin assembly at one pole of the bacterium. This actin-based motility requires the presence of the bacterial proteins ActA on L. monocytogenes and IcsA on Shigella flexneri.
openaire +2 more sources
Introduction to bacterial motility and chemotaxis
Journal of Chemical Ecology, 1990Bacteria swim by rotating semirigid, left-handed helical flagellar filaments; counterclockwise (CCW) rotation produces straight swims, known as "runs," and clockwise (CW) rotation generates abrupt changes in direction, known as "tumbles." As a cell moves through its environment, alternately running and tumbling, it detects spatial gradients of ...
openaire +2 more sources
Aliphatic alcohols and bacterial motile behavior
Canadian Journal of Microbiology, 1974Aliphatic alcohols induced a state of continuous uncoordinated translational movement in Pseudomonas fluorescens, Citrobacter freundii, Alcaligenes faecalis, and Rhodospirillum rubrum. This behavior was reversible and ceased upon removal of the stimulus. A hypothesis based upon electrostatic mechanisms is presented to explain these observations.
C, Biddle, R N, Doetsch
openaire +2 more sources