Variation
in
Structure
of
Complex
Viruses
In
the
lambda
coliphage
the
head
capsid
is
a
regular
icosahedron.
In
the
coli
phages
T3
and
T7
the
tail
is
Short
and
stubby,
and
ends
in
a
baseplate
like
structure.
The coli phages T1 and T5 have no tail sheath, and their tail fibres are rudimentary. Pox viruses are brick shaped, ovoid or flattened-cylindrical.
The
vesicular
stomatitis
virus
and
the
rabies
virus
are
bullet
shaped,
with
transverse
striations
probably
produced
by
tubular
components
arranged
in
a
criss
cross
pattern.
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