Siphoviridae was a family of double-stranded DNA viruses in the order Caudovirales. The family Siphoviridae and order Caudovirales have now been abolished, with the term siphovirus now used to refer to the morphology of viruses in this former family. Bacteria and archaea serve as …

The virions have the largest heads and longest tails in the family Siphoviridae (Figure 3). Virion properties Morphology. Heads are icosahedra of 81 nm in diameter. Tails measure 355×10 nm, are relatively rigid, have no collar and possess six club-shaped terminal spikes. Physicochemical and physical properties

Siphoviridae is a family of bacteriophages characterized by long noncontractile tails, representing 60% of the described phages with double-stranded DNA genomes and a tail connected to their capsid. AI generated definition based on: Reference Module in Life Sciences, 2017

Siphoviridae A group of phages which have double-stranded DNA genomes and long, flexible, non-contractile tails. Siphoviridae may have isometric (see, for example, Rosebush) or prolate (see, for example, Babsiella) heads. The vast majority (~90%, as of early 2011) of known mycobacteriophages are siphoviridae. See also: Myoviridae, Podoviridae, Tail

Of the tailed phages, about 57 percent have long, noncontractile tails ("Siphoviridae"). Tailed phages appear to be monophyletic and are the oldest known virus group. [4][6]

Aug 13, 2018 · Morphologically, they have traditionally been classified further into three families: the Myoviridae, Siphoviridae and Podoviridae. Myophages have long, contractile tails, siphophages have long,...

In our search for new A. baumannii specific bacteriophages we isolated three temperate bacteriophages with a very narrow host range belonging to the family Siphoviridae. The ca. 35 kb genomes were >99% identical to each other, contained 10 nt cohesive end termini, 52–54 predicted genes, an attP site and one tRNA gene each.

Siphoviridae is a family of double-stranded DNA viruses in the order Caudovirales. Bacteria and archaea serve as natural hosts. There are currently 313 species in this family, divided among 47 genera.

Siphoviridae phages possess a long non-contractile tail and use a mechanism of infection whose first step is host recognition and binding. They have evolved adhesion devices at their tails’ distal end, tuned to recognize specific proteinaceous or saccharidic receptors on the host’s surface that span a large spectrum of shapes.

The vast majority of known bacterial viruses are tailed bacteriophages. They consist of a capsid containing a densely packed double-stranded DNA and a tail. Depending on the morphology of their tail, phages are classified as Siphoviridae (long flexible tail), Myoviridae (long contractile tail) and Podoviridiae (short tail). The assembly pathway ...