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  • Title: Associative growth of Yersinia enterocolitica 0:3 with Pseudomonas aeruginosa and Staphylococcus aureus in a diffusion apparatus. (Ecologen).
    Author: Holmquist-Donquis I, Arispe I.
    Journal: Acta Cient Venez; 1989; 40(2):119-23. PubMed ID: 2534873.
    Abstract:
    To evaluate associative growth of psychorotrophic P. aeruginosa and S. aureus with Y. enterocolitica 0:3, microorganisms were grown in trypticase soy broth in a diffusion apparatus (Ecologen) and incubated for 9 days at 4 degrees C. The effects of culture interactions were determined by growth curves, lag times, generation times, pH changes and acid production. The observed growth curves for Y. enterocolitica 0:3, P. aeruginosa and S. aureus, shows the stimulating effects of Y. enterocolitica 0:3 on growth of psychotrophic microorganisms in associative culture at 4 degrees C, although it was later inhibited by these organisms as they reached the stationary phase, thus proving itself to be a poor competitor with common spoilage microorganism.
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