Chemotaxis of Pseudomonas spp. to the polyaromatic hydrocarbon naphthalene

Article Abstract:

A study was conducted on the chemotaxis of naphthalene-degrading bacteria Pseudomonas sp strain NCIB 9816-4 and Pseudomonas putida G7. A modified capillary assay and a drop assay were employed to test the bacteria's chemotactical attraction to naphthalene. Biphenyl was found to be a chemoattractant to Pseudomonas putida G7. Results also show that both Pseudomonas strains were not chemotactic to other polyaromatic hydrocarbons.

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Identification of a malate chemoreceptor in Pseudomonas aeruginosa by screening for chemotaxis defects in an energy taxis-deficient mutant

Article Abstract:

Chemotaxis in Pseudomonas aeruginosa mediated by other methyl-accepting chemotaxis proteins (MCPs) can be masked by a robust energy taxis response. The screening of aer mcp double mutants identifies PA2652 as the chemoreceptor for malate.

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Redirection of metabolism for biological hydrogen production

Article Abstract:

A selection strategy to isolate strains of purple photosynthetic bacteria in which hydrogen production is necessary for growth and independent of nitrogen fixation is described.

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