R. Ricomora et al., BIOLOGICAL-CONTROL OF VIBRIO-ALGINOLYTICUS IN SKELETONEMA-COSTATUM (BACILLARIOPHYCEAE) CULTURES, Aquacultural engineering, 19(1), 1998, pp. 1-6
A bacterial strain (SK-05), selected for its active growth in organic-
poor substrates and inoculated in a Skeletonema costatum culture in la
te exponential growth, prevented the establishment of Vibrio alginolyt
icus, purposely introduced into the diatom culture. Since SK-05 has no
bacteriostatic or antibiotic activity against V. alginolyticus, it is
concluded that it has an effect of competitive exclusion, due to its
ability to utilize the exudates of S. costatum, which maintain within
the culture an organic-poor environment, unsuitable for Vibrio growth.
It is speculated that the use of SK-05 or other strains with similar
properties in commercial hatcheries, might be a viable alternative to
the use of other, more expensive probiotic bacteria. (C) 1998 Elsevier
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