biofilms, motility, Pseudomonas aeruginosa, pyocyanin, rhamnolipid production

Pseudomonas aeruginosa is an environmentally significant, ubiquitous Gram-negative, rod shaped γ-proteobacterium. It is an important opportunistic human pathogen, also capable of causing infections in non-mammalian host species, such as insects, nematodes and plants. P. aeruginosa successfully colonizes different natural ecological habitats, including soil, water, rhizosphere, as well as wastewaters, wastewater treatment plants, wasted sludge leachate and, consequently, irrigation water or agricultural soil, thus increasing potential public health risks. Given that it is commonly present in public drinking water supply systems and enclosed spaces, such as hospitals and schools, many studies have investigated its major natural features (physical, physiological, biochemical, biological) that may be responsible for high survival and pathogenicity rates (Driscoll et al. 2007; Gellatly & Hancock 2013; Grosso-Becerra et al. 2014). It is thought that widespread distribution of P....

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