Development of fluorescence
in eggs after exposure to conditions favoring penetration
of pseudomonads is progressive. Lorenz et al. (1952)
found that after exposure a few eggs in the lot became
fluorescent within a day or two but 6 or 8 weeks at
15 C were required for all or most susceptible eggs to
become fluorescent. Thus a lot of eggs with a low
incidence of spoilage by pseudomonads may develop a
much higher incidence on further storage. In fact,
various workers have pointed out that such spoilage is
most serious in stored eggs.