Motility Spirillum

The test based on motility inhibition of the bacterium Spirillum volutants is a very simple and rapid test for the qualitative screening of wastewater samples or extracts [48]. The organisms are observed under the microscope immediately after the addition of the test solution. The maintenance of a bacterial culture is necessary as in the previous type of assay. 

Aerobic spiral and curved motile gram-negative bacteria. Bdellovibrio, Campylobacter (C. jejuni, diarrhea), Helicobacter (H. pylori, gastric ulcers), Spirillum... 

There are various types of flagellar motility, which depend on the number and location of the flagella in the cell and on the species (Table 1). In some species (e.g., Pseudomonas species, Spirillum species, Chromatium species and Halobacteria), the cells swim forward and backward, and... 

SRB have been implicated in localised pitting corrosion, commonly referred to as microbially influenced corrosion (MIC). These and other anaerobes cause biocorrosion due to production of adds and other by-products (e.g.hydrogen sulphide), that cause cathodic depolarisation of metal surfaces. SRB also cause discoloration problems and production of foul odors. They are susceptible to bioddes, and can be controlled. Many other types of anaerobes may be present in the mill system, including the common helical-shaped, motile bacteria Spirillum. These corkscrew-shaped anaerobes are often seen under the microscope swimming in deposit samples and soured stock. 

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