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Volume 97, Issue 1
1 January 1953
Journal of Experimental Medicine Cover Image for Volume 97, Issue 1
Article| January 01 1953

THE EFFECT OF X-RADIATION ON THE MULTIPLICATION OF RICKETTSIA MOOSERI IN EMBRYONATE EGGS

Donald Greiff,
Donald Greiff
From the Departments of Biology and Pathology, St. Louis University, and the Laboratory of the Jewish Hospital, St. Louis
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Masahiro Chiga,
Masahiro Chiga
From the Departments of Biology and Pathology, St. Louis University, and the Laboratory of the Jewish Hospital, St. Louis
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Herman T. Blumenthal,
Herman T. Blumenthal
From the Departments of Biology and Pathology, St. Louis University, and the Laboratory of the Jewish Hospital, St. Louis
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Henry Pinkerton
Henry Pinkerton
From the Departments of Biology and Pathology, St. Louis University, and the Laboratory of the Jewish Hospital, St. Louis
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Author and Article Information
Donald Greiff
From the Departments of Biology and Pathology, St. Louis University, and the Laboratory of the Jewish Hospital, St. Louis
Masahiro Chiga
From the Departments of Biology and Pathology, St. Louis University, and the Laboratory of the Jewish Hospital, St. Louis
Herman T. Blumenthal
From the Departments of Biology and Pathology, St. Louis University, and the Laboratory of the Jewish Hospital, St. Louis
Henry Pinkerton
From the Departments of Biology and Pathology, St. Louis University, and the Laboratory of the Jewish Hospital, St. Louis
Received: September 05 1952
Online ISSN: 1540-9538
Print ISSN: 0022-1007
Copyright, 1953, by The Rockefeller Institute for Medical Research New York
1953
J Exp Med (1953) 97 (1): 139–144.
https://doi.org/10.1084/jem.97.1.139
Article history
Received:
September 05 1952

The multiplication of Rickettsia mooseri in fertile eggs is speeded up and quantitatively increased by single dose x-radiation given either 24 hours before or 48 hours after inoculation. This effect is noted at all dosage levels studied, ranging from 100 to 1500 r. The rickettsiostatic effects of high incubation temperature (40°C.) and of streptomycin are neutralized by radiation, but the rickettsiostatic actions of PABA, penicillin, and aureomycin are not altered. Possible mechanisms of action and implications of the observed effects are discussed.

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Copyright, 1953, by The Rockefeller Institute for Medical Research New York
1953
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