Acquired thermotolerance and heat shock proteins in thermophiles from the three phylogenetic domains - PubMed (original) (raw)

Comparative Study

Acquired thermotolerance and heat shock proteins in thermophiles from the three phylogenetic domains

J D Trent et al. J Bacteriol. 1994 Oct.

Abstract

Thermophilic organisms from each of the three phylogenetic domains (Bacteria, Archaea, and Eucarya) acquired thermotolerance after heat shock. Bacillus caldolyticus grown at 60 degrees C and heat shocked at 69 degrees C for 10 min showed thermotolerance at 74 degrees C, Sulfolobus shibatae grown at 70 degrees C and heat shocked at 88 degrees C for 60 min showed thermotolerance at 95 degrees C, and Thermomyces lanuginosus grown at 50 degrees C and heat shocked at 55 degrees C for 60 min showed thermotolerance at 58 degrees C. Determinations of protein synthesis during heat shock revealed differences in the dominant heat shock proteins for each species. For B. caldolyticus, a 70-kDa protein dominated while for S. shibatae, a 55-kDa protein dominated and for T. lanuginosus, 31- to 33-kDa proteins dominated. Reagents that disrupted normal protein synthesis during heat shock prevented the enhanced thermotolerance.

PubMed Disclaimer

Similar articles

Cited by

References

    1. Arch Microbiol. 1990;154(6):594-9 - PubMed
    1. Adv Microb Physiol. 1990;31:183-223 - PubMed
    1. Nature. 1991 Dec 12;354(6353):490-3 - PubMed
    1. EMBO J. 1992 Jun;11(6):2357-64 - PubMed
    1. FEMS Microbiol Lett. 1992 Jun 15;72(3):279-83 - PubMed

Publication types

MeSH terms

Substances

LinkOut - more resources