Introductory Microbiology

Classification of virus

Phylum- vira
Subphylum – Deoxyvira (DNA virus):
Class :1) Deoxy helica (helical symmetry)
           2) Deoxycubi (cubical symmetry)
          3) Deoxybinala (viruses with head and tail)
          4) Ribohelica (helical symmetry)
          5) Ribocubia (cuboidal symmetry)

I. ss RNA viruses:
1) Helical (plant viruses)
2) Icosa hedral (plant and animal viruses)
3) Enveloped
II. DNA viruses:
1) Segmented genome (animal and plant viruses)
2) Enveloped
III. ss DNA viruses:
1) Icosa hedral – Bacteriophages and parvo viruses
2) Helical – Bacteriophages
IV. Ds DNA viruses:
1) Icosahedral complex (Tailed)
2) Enveloped
3) Nuclear assembly
3) Cytoplasmic assembly

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