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What function does the fluoresence have in pseudomonal fluorescent bacteria?

These bacteria don't present much colour when viewed through the microscope, but the name must carry some indication of colour. Has the colour a specific function? What is the process by which the bacteria turn meat "off"? The proces by which the bacteria affect milk is outlined in text books, but the "meat" process seems to be glossed over.

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The common characterisitic of psudomonal fluorescent bacteria is the production of pigments that fluorsce under short wave length UV light at 254 nm particularly after growth under iron limitation. You are ...