Pseudomonas gessardii explained

Pseudomonas gessardii is a fluorescent, Gram-negative, rod-shaped bacterium isolated from natural mineral waters in France.^[1] Based on 16S rRNA analysis, P. gessardii has been placed in the P. fluorescens group.^[2]

Habitat

While as mentioned previously this bacterium was first isolated from natural mineral water, it is also found in other environments such as sewage^[3] or soil.^[4] These bacteria have a wide range of thermal tolerance as they can grow at temperatures ranging from 4 to 35°C with an optimum at 30°C.

Industrial applications

Pseudomonas gessardii bacteria are currently used in many industrial processes. Examples of these applications include bioremediation of contaminated industrial sites through degradation of naphthalene and biological reduction of chromium for its removal from the environment, production of lipase active in low pH conditions used in the food, leather and medical industries^[5]

Notes and References

1. Verhille S, Baïda N, Dabboussi F, Hamze M, Izard D, Leclerc H . Pseudomonas gessardii sp. nov. and Pseudomonas migulae sp. nov., two new species isolated from natural mineral waters . International Journal of Systematic Bacteriology . 49 Pt 4 . 4 . 1559–1572 . October 1999 . 10555337 . 10.1099/00207713-49-4-1559 . free .
2. Anzai Y, Kim H, Park JY, Wakabayashi H, Oyaizu H . Phylogenetic affiliation of the pseudomonads based on 16S rRNA sequence . International Journal of Systematic and Evolutionary Microbiology . 50 Pt 4 . 4 . 1563–1589 . July 2000 . 10939664 . 10.1099/00207713-50-4-1563 .
3. Huang H, Wu K, Khan A, Jiang Y, Ling Z, Liu P, Chen Y, Tao X, Li X . A novel Pseudomonas gessardii strain LZ-E simultaneously degrades naphthalene and reduces hexavalent chromium . Bioresource Technology . 207 . 370–378 . May 2016 . 26901089 . 10.1016/j.biortech.2016.02.015 . free .
4. Shurigin V, Alimov J, Davranov K, Gulyamova T, Egamberdieva D . The diversity of bacterial endophytes from Iris pseudacorus L. and their plant beneficial traits . Current Research in Microbial Sciences . 3 . 100133 . 2022 . 35909614 . 9325737 . 10.1016/j.crmicr.2022.100133 .
5. Ramani K, Chockalingam E, Sekaran G . Production of a novel extracellular acidic lipase from Pseudomonas gessardii using slaughterhouse waste as a substrate . Journal of Industrial Microbiology & Biotechnology . 37 . 5 . 531–5 . May 2010 . 20204455 . 10.1007/s10295-010-0700-2 .