Results 21 to 30 of about 1,073,295 (282)
The interaction of thin-film flow, bacterial swarming and cell differentiation in colonies of Serratia liquefaciens [PDF]
, 2000 The rate of expansion of bacterial colonies of S. liquefaciens is investigated in terms of a mathematical model that combines biological as well as hydrodynamic processes. The relative importance of cell differentiation and production of an extracellular
Bees, Martin Alan +7 more
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Small Science, 2022 Heterogeneous bacterial populations can display increased resistance to external threats, such as exposure to antibiotics. Despite the mounting clinical evidence supporting the importance of bacterial heterogeneity in acute infections, current ...
Giampaolo Pitruzzello +3 more
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Stresses, 2023 Semen quality plays a crucial role in poultry production; however, it may be impaired by the presence of numerous bacterial species. This study researched the impact of bacterial contamination of Lohmann brown rooster semen on the biochemical parameters ...
Michal Ďuračka +6 more
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Optical trapping reveals propulsion forces, power generation and motility efficiency of the unicellular parasites Trypanosoma brucei brucei [PDF]
, 2014 Unicellular parasites have developed sophisticated swimming mechanisms to survive in a wide range of environments. Cell motility of African trypanosomes, parasites responsible for fatal illness in humans and animals, is crucial both in the insect vector ...
Engstler, M. +11 more
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PLoS ONE, 2023 Burkholderia pseudomallei is a facultative intracellular bacterial pathogen that causes melioidosis, a severe invasive disease of humans. We previously reported that the stress-related catecholamine hormone epinephrine enhances motility of B ...
Chatruthai Meethai +11 more
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An experimental and computational study of the effect of ActA polarity on the speed of Listeria monocytogenes actin-based motility. [PDF]
PLoS Computational Biology, 2009 Listeria monocytogenes is a pathogenic bacterium that moves within infected cells and spreads directly between cells by harnessing the cell's dendritic actin machinery. This motility is dependent on expression of a single bacterial surface protein, ActA,
Susanne M Rafelski +2 more
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Effect of Viscosity on Bacterial Motility [PDF]
Journal of Bacteriology, 1974 The behavior of a number of motile flagellated bacteria toward viscosity characteristics of their fluid environments was observed. All showed an increase in velocity (micrometers per second) in more viscous solutions. Velocity reached a maximum at a characteristic value, however, and thereafter decreased with higher viscosities ...
W R, Schneider, R N, Doetsch
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Symmetries in bacterial motility [PDF]
Proceedings of the National Academy of Sciences, 1996 Descriptions are given of three kinds of symmetries encountered in studies of bacterial locomotion, and of the ways in which they are circumvented or broken. A bacterium swims at very low Reynolds number: it cannot propel itself using reciprocal motion (by moving through a sequence of shapes, first forward and then in reverse); cyclic motion is ...
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Impact of Microscopic Motility on the Swimming Behavior of Parasites : Straighter Trypanosomes are More Directional [PDF]
, 2011 Microorganisms, particularly parasites, have developed sophisticated swimming mechanisms to cope with a varied range of environments. African Trypanosomes, causative agents of fatal illness in humans and animals, use an insect vector (the Tsetse fly) to ...
Nagler, J. +21 more
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Bio-Protocol, 2018 A method was developed to allow the quantification and mapping of relative bacterial twitching motility in dense samples, where tracking of individual bacteria was not feasible. In this approach, movies of bacterial films were acquired using differential
Benjamin Smith +5 more
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