This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Reprints and Permissions Copyright Information Books from ASM Press MicrobeWorld Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Cannefax, G. R. Search for Related Content PubMed PubMed Citation Articles by Cannefax, G. R.

 Previous Article  |  Next Article 

J Bacteriol. 1962 April; 83(4): 708-710
Copyright © 1962, The Williams & Wilkins Company. All Rights Reserved.

A TEMPERATURE-GRADIENT BAR AND ITS APPLICATIONS TO THE STUDY OF TEMPERATURE EFFECTS ON THE GROWTH OF REITER'S TREPONEME

^a Venereal Disease Experimental Laboratory, Communicable Disease Center, U. S. Public Health Service, and Department of Experimental Medicine, School of Public Health, University of North Carolina, Chapel Hill, North Carolina

ABSTRACT

CANNEFAX, GEORGE R. (Communicable Disease Center, Atlanta, Ga.). A temperature-gradient bar and its applications to the study of temperature effects on the growth of Reiter's treponeme. J. Bacteriol. 83:708–710. 1962.—A temperature-gradient device is described which employs a constant heat source and an aluminum bar with 294 holes to accommodate small test tubes. Examples of the range and degree of temperature gradients are presented, and the factors affecting heat conduction and heat losses are discussed. Three temperature gradients obtained under different conditions are shown graphically. The usefulness of the temperature-gradient bar in determining the optimal temperature for the cultivation of Reiter's treponeme is presented. The optimal temperature range was found to be 33 to 35 C. The potential usefulness of the temperature-gradient bar in other biological studies is suggested.

¹ Present address: Venereal Disease Research Laboratory, Venereal Disease Branch, Communicable Disease Center, Atlanta, Ga.