FIG. 1.

Implication of protein synthesis in the viability of L. delbrueckii subsp. bulgaricus strain 546 during heat shock at 65°C. Cells in exponential phase were centrifuged, resuspended in MPL medium in the absence (▪) or in the presence (○) of 10 μg of chloramphenicol/ml, and incubated at room temperature for 20 min before heat shock at 65°C for the indicated times. Viability was monitored by plate counting during the challenge. Each point is the average of at least 11 independent experiments. Standard deviations are shown by bars.