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A family of relatively large bacterial viruses with complex contractile tails, heads that are usually elongated but are isometric in some species, and a double-stranded DNA genome (MW 21-190 × 106). It includes the T-even phage group and probably other genera.
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Dimensions and titration of the isolated phages Phage Prospected Head Tail Phage titer (PFU/ml) Family diameter length (mil) (mil) oEU-3 phage Siphoviridae 71.42 214.28 2 x [10.sup.7] oEU-4 phage Myoviridae 66.6 108.3 2 x [10.sup.5]
On the other hand, the Myoviridae phages (P-1, P-2, and P-5) had a slightly longer latent period of 20-30 min.
[50] observed that Myoviridae phages drastically lost phage activity (3.5 logs PFU [mL.sup.-1]) after 60 min of incubation at 60[degrees]C.
The average burst size of tested phages was about 329 phages per infected cell, which is more than the typical range of 50-100 PFU [cell.sup.-1] for many Myoviridae and Siphoviridae phages [77, 78].
Phage characterization shows that it belongs to family Myoviridae which not only efficiently lyses VRE but also has outstanding thermal and pH stability that makes it a potential candidate for antibacterial therapy.
Andleeb, "Isolation and characterization of a Myoviridae MJ1 bacteriophage against multi-drug resistant Escherichia coli 3," Jundishapur Journal of Microbiology, vol.
Los 24 fagos tenian un peso molecular de 90kb y, segun sus caracteristicas morfologicas, 22 pertenecen a la familia Myoviridae, uno a la familia Podoviridae y uno a la familia Siphoviridae (Frampton et al.
Segun un estudio comparativo entre las tres familias pertenecientes al orden Caudovirales, los fagos que tienen un mayor rango de hospedero son aquellos pertenecientes a la familia Myoviridae, capaces de infectar incluso diferentes generos bacterianos, mientras que los del rango mas estrecho pertenecen a la familia Podoviridae, que en general infectan solo una cepa de su bacteria hospedera (Wichels et al.
cs: cadena sencilla Familia Material Hospedero Morfologia genetico Corticoviridae cdADN Bacteria Tectiviridae cdADN Bacteria Podoviridae cdADN Bacteria Myoviridae cdADN Bacteria y Archaea Siphoviridae cdADN Bacteria y Archaea Fuselloviridae cdADN Archaea Guttaviridae cdADN Archaea Lipothrixiviridae cdADN Archaea Rudiviridae cdADN Archaea Plasmaviridae cdADN Bacteria Sin familia cdADN asignada Salterprovirus Microviridae csADN Bacteria Inoviridae csADN Bacteria Cystoviridae cdARN Bacteria Leviviridae csARN Bacteria
unclassified Sample Viruses Root reads BH 80/11 RNA (3 55 (Myoviridae, Siphoviridae, 377 1,318 pooled samples) Podoviridae, Bunyaviridae, Retroviridae, Papillomaviridae) BH 81/11 RNA 57 (Myoviridae, Siphoviridae, 19 1,006 Podoviridae, Retroviridae) BH 80/11 DNA (3 3 (Herpesviridae, Mimiviridae, 9,181 9,339 pooled samples) unclassified virus) BH 81/11 DNA 1 (Retroviridae) 3 9,929
Los colifagos somaticos son virus con ADN de cadena doble o sencilla, con capsides cubicas o complejas que tienen cabeza y cola; existen cuatro familias: la Myoviridae que se caracteriza por presentar un ADN de cadena doble con capsides de hasta 100 nm con colas largas no contractiles; la Podoviridae, presenta ADN de cadena doble con colas cortas no contractiles; la Microviridae: tiene ADN de cadena sencilla, con una capside de 30 nm sin colas y la Siphoviridae, es semejante a la familia Podoviridae, pero a diferencia de esta es la familia mas resistente junto con la familia Myoviridae, encontrandose la primera con mayor frecuencia en aguas localizadas lejos del sitio de polucion, mientras que la segunda se localiza en aguas recientemente contaminadas.
Consequently, the phages were classified as belonging to family Myoviridae (group A).