Search results
Results from the WOW.Com Content Network
Serratia marcescens (/ s ə ˈ r eɪ ʃ i ə m ɑːr ˈ s ɛ s ɪ n z /) [3] [failed verification] is a species of rod-shaped, Gram-negative bacteria in the family Yersiniaceae. It is a facultative anaerobe and an opportunistic pathogen in humans. It was discovered in 1819 by Bartolomeo Bizio in Padua, Italy. [4]
S. marcescens and S. liquefaciens can be easily confused in the lab when using the analytical profile index system. They can both oxidise arabinose, but only S. liquefaciens can ferment arabinose in peptone water. The virulence of Serratia strains can also be identifiable by type 4 fimbriae, small hair-like projections. [20]
Operation Sea-Spray was a 1950 U.S. Navy secret biological warfare experiment in which Serratia marcescens and Bacillus globigii bacteria were sprayed over the San Francisco Bay Area in California, in order to determine how vulnerable a city like San Francisco may be to a bioweapon attack, killing at least one American and sickening at least 10 more.
Slow sand filters rely on biofilm development in the same way to filter surface water from lake, spring or river sources for drinking purposes. What is regarded as clean water is effectively a waste material to these microcellular organisms. Biofilms can help eliminate petroleum oil from contaminated oceans or marine systems.
In 1950, to conduct a simulation of a biological warfare attack, the U.S. Navy sprayed large quantities of the bacterium Serratia marcescens – considered harmless at the time – over the city of San Francisco during a project called Operation Sea-Spray. Numerous citizens contracted pneumonia-like illnesses, and at least one person died as a ...
Prodigiosin is a red dye produced by many strains of the bacterium Serratia marcescens, [1] [2] as well as other Gram-negative, gamma proteobacteria such as Vibrio psychroerythrus and Hahella chejuensis. It is responsible for the pink tint occasionally found in grime that accumulates on porcelain surfaces such as bathtubs, sinks, and toilet bowls.
Serratiopeptidase (Serratia E-15 protease, also known as serralysin, serrapeptase, serratiapeptase, serratia peptidase, serratio peptidase, or serrapeptidase) is a proteolytic enzyme (protease) produced by enterobacterium Serratia sp. E-15, now known as Serratia marcescens ATCC 21074. [1]
S. marcescens on an agar plate. The pathogen responsible is believed to be Serratia marcescens, a common intestinal bacterium found in humans and other animals. [1] [6] This is the first time it has been linked to the death of coral. [7] The specific source of the bacteria that is killing the coral is currently unknown.