Effects of Lactic Acid-Forming Bacteria on Vibrio comma Inoculated into Intestinal Segments of Rabbits

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Hattori, H. (Sankyo Co., Ltd., Tokyo, Japan), H. Misawa, I. Igarashi, and Y. Sugiya. Effects of lactic acid-forming bacteria on Vibrio comma inoculated into intestinal segments of rabbits. J. Bacteriol. 90:541–545. 1965.—Mixed inocula of Vibrio comma KC-4 and various lactic acid-forming bacteria were injected into the intestinal segments of rabbits (De and Chatterje, 1953) to observe the effects of the latter agents in altering the changes produced by strain KC-4. The animals were sacrificed 10 and 20 hr after inoculation. The inoculated intestinal segments were first examined grossly, and the amount of exudate in the segments, if any, was measured, after which the tissues were subjected to pathological examination. When KC-4 cells together with spore-bearing lactic acid-forming bacilli, strain P-22, or Lactobacillus casei were introduced, the intestinal segments showed few or no macroscopic and microscopic changes, and no accumulation of exudate. With mixed inoculation with lactic acid bacteria such as L. bulgaricus, L. acidophilus, Streptococcus lactis, and S. faecalis, changes were produced by strain KC-4. Macroscopically, no difference was discernible between the changes caused by mixed inoculation and those produced by single inoculation of KC-4. Upon pathological examination, however, it was seen that changes resulting from mixed inoculation were slightly less severe than those produced by inoculation with strain KC-4 only.

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