lag phase


Also found in: Dictionary, Thesaurus, Medical, Legal.
Related to lag phase: Log phase

lag phase

[′lag ‚fāz]
(microbiology)
The period of physiological activity and diminished cell division following the addition of inoculum of bacteria to a new culture medium.
References in periodicals archive ?
It must be noted that the C1Fd strain did not show a distinct lag phase when grown on both MAH compounds tested in this study.
CH4 (t)]) for each S/I ratio, the duration of the lag phase (X) (hours), the maximum methane production ([P.
Moreover, [beta]-CyD and Tre prolonged the lag phase of the aggregation process and [beta]-CyD and Tre decreased the aggregation rate.
In the present study, it is found that the lag phase lasts 6h.
At 40oC longer lag phase was revealed up to 12 days, after that degradation rate increased.
It is clearly indicated that microorganisms without metal (control) treatment showed lag phase of 2-3 h.
Then, gas production was found to be slowed down to approximately 200 mL due to the fading out of the readily degradable organic matter at day 10 and this period termed as lag phase or starting up (Fig.
According to Prof Panizza, the virus had a long lag phase, so it is often decades between exposure to the virus and the appearance of symptoms.
The bacterial amplification from the inoculated floor and in the wet carpet and pad in area 4 demonstrated the same standard bacterial growth curve observed in laboratory studies for bacterial amplification with an initial lag phase where some amplification of bacteria occurs slowly followed by a log phase where amplification is exponential (Fishov, Zaritsky, & Grover, 1995).
Lag phase was first described in the 19th Century, and was assumed to be needed by bacteria to prepare to exploit new environmental conditions.