🔬 Adsorption Resistance

Discussion

<p>The most commonly observed form of bacterial resistance to phages is adsorption resistance, typically due to an absence from the surface of the bacterium of receptor molecules required by the phage. Such resistance occurs not just because bacteria lose these molecules to mutation or other means but instead because most bacteria simply lack and effective always have lacked whatever receptor a phage employs for adsorption. The result is that phage host ranges tend to be fairly narrow though those phage with particularly wide host ranges either employ receptors that are fairly commonly found among bacteria or, alternatively, can use more than one receptor for adsorption.

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