Three-Membered Parasitic System: a Bacteriophage, Bdellovibrio bacteriovorus, and Escherichia coli |
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Authors: | Mazal Varon and Reuben Levisohn |
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Institution: | Department of Microbiology, Tel Aviv University, Tel Aviv, Israel |
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Abstract: | Two bacteriophages for Bdellovibrio bacteriovorus were isolated. One of the phages (VL-1) was isolated on a host-independent Bdellovibrio strain, and the other (VL-2) was isolated on a host-dependent strain. Both phages grew on host-dependent as well as on host-independent Bdellovibrio strains. The development of the phages in host-dependent bdellovibrios occurred only when the phage-infected bdellovibrios parasitized cells of other bacteria. In the absence of other bacteria, the phages adsorbed to the bdellovibrios and killed them and in the process lost their own plaque-forming ability. |
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