Schematic representation of the known morphotypes of phages infecting LAB. 1A represents the prolate-headed Siphoviridae while 1B represents the isometric-headed Siphoviridae phages. Members of the Siphoviridae family possess long non-contractile tails. 1C displays the long contractile tail typical of Myoviridae phages. 1D is a schematic highlighting the short non-contractile tails of the Podoviridae phages.