The effect of bacterial products of various strains obtained from patients with urinary tract infections was tested on peristalsis of sheep ureteral rings. In 55-70% spontaneous rhythmic contractions were inhibited by addition of small amounts of growth supernatants from Escherichia coli, Pseudomona
The effect of surfactants on the motility and adhesion of gliding bacteria
โ Scribed by R. P. Burchard
- Publisher
- Springer
- Year
- 1986
- Tongue
- English
- Weight
- 664 KB
- Volume
- 146
- Category
- Article
- ISSN
- 0302-8933
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โฆ Synopsis
Surfactants markedly inhibited swarming and gliding motility but not other movements nor the growth of Cytophaga U67. The swarming of several other gliding bacteria was also diminished. Inhibition of translocation may result from the fact that the surfactants blocked adhesion of these bacteria. In contrast, the gliding of Oscillatoria princeps was unaffected by reduction of surface free energy.
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Diatoms are a group of unicellular microalgae that are encased in a highly ornamented siliceous cell wall, or frustule. Pennate diatoms have bilateral symmetry and many genera possess an elongated slit in the frustule called the raphe, a feature synonymous with their ability to adhere and glide over
Ureteral rings were used to study in vitro spontaneous phasic contractions, similar to the peristaltic waves in vivo. Addition of small amounts of sheep or human urine inhibited or totally blocked rhythmic contractions, and induced tonic contracture. Changes in osmolality induced by the addition of