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. 1966 Jan;91(1):340–348. doi: 10.1128/jb.91.1.340-348.1966

Characterization of a Thermophilic Bacteriophage for Bacillus stearothermophilus1

Grady F Saunders a, L Leon Campbell a
PMCID: PMC315953  PMID: 5903101

Abstract

Saunders, Grady F. (University of Illinois, Urbana), and L. Leon Campbell. Characterization of a thermophilic bacteriophage for Bacillus stearothermophilus. J. Bacteriol. 91:340–348. 1965.—The biological and physical-chemical properties of the thermophilic bacteriophage TP-84 were investigated. TP-84 was shown to be lytic for 3 of 24 strains of Bacillus stearothermophilus tested over the temperature range of 43 to 76 C. The latent period of TP-84 on B. stearothermophilus strain 10 was 22 to 24 min. TP-84 has a hexagonal head, 53 mμ in diameter and 30 mμ on a side; its tail is 130 mμ long and 3 to 5 mμ wide. The phage has an S5020,w of 436, and bands at a density of 1.508 g/cc in CsCl (pH 8.5). The diffusion coefficient of TP-84 was calculated to be 6.19 × 10−8 cm2/sec. From the sedimentation and diffusion data, a particle molecular weight of 50 million daltons was calculated for TP-84. The phage DNA has a base composition of 42% guanine + cytosine, deduced from buoyant density and melting temperature measurements.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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