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Appl Environ Microbiol. 1969 June; 17(6): 836-838
Copyright © 1969 American Society for Microbiology. All Rights Reserved.

Coagulase Production by Injured Staphylococcus aureus MF-31 During Recovery¹

^a Division of Biology, Kansas State University, Manhattan, Kansas 66502

ABSTRACT

Suspensions of Staphylococcus aureus MF-31 injured by heat treatment at 54 C for 15 min produced coagulase during recovery in Trypticase Soy Broth. Coagulase also was produced by injured cells during recovery in a medium that did not support growth. Coagulase synthesis during recovery was independent of the molar strength of the buffer in which the cells were injured, the age of the cells, and the degree of injury. Return of salt tolerance and coagulase production required glucose, amino acids, and phosphate in the recovery medium. Vitamins stimulated coagulase production, but did not affect recovery. Although coagulase production was not necessary for repair of thermal injury to S. aureus MF-31, its detection was interpreted as an indicator of protein synthesis.

¹ Contribution no. 1028, Division of Biology, Kansas Agricultural Experiment Station, Manhattan, Kan.