suppose you ran this test with providencia stuartii but it took 48 hours to turn pink. do you think this is a false result? if so, is it false positive or a false negative? if not, why not? give some possible reasons for this occurrence
Providencia stuartii (commonly P. stuartii), is a Gram negative bacterium that is commonly found in soil, water, and sewage. P. stuartii is the most common of the 5 species found in the genus Providencia, with Providencia rettgeri, Providencia alcalifaciens, Providencia rustigianii, P heimbachae. Providencia stuartii can be incubated at 37°C in nutrient agar or nutrient broth. P. stuartii is the genomic source for the restriction endonuclease, PstI.
The result is false negative because it has taken longer than it ought to take