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Dominance Relationships in Mixedly Infected Bacillus Subtilis

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Journal J Virol
Date 1972 Apr 1
PMID 4623223
Citations 18
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Abstract

The progeny released from Bacillus subtilis cells mixedly infected with bacteriophages beta22, SP82, and SP02(c1) have been studied at varying multiplicities of infection and orders of addition and with different host strains of the bacterium. In B. subtilis 168, SP02(c1) was subordinate to both SP82 and beta22 and did not yield significant numbers of progeny even when added 5 min before the superior phage. Dominance in mixed infections of beta22 and SP82 was host-dependent. In B. subtilis 168, SP82 was dominant and greatly reduced the yield of beta22 if added simultaneously or before the subordinate partner. However, in the same mixed infection in B. subtilis SB11, beta22 was the dominant phage and totally suppressed the production of SP82 even when added 5 min after the latter.

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