Tomato
Spotted
Witt
Virus
(TSWV) - Tomato spotted wilt virus is a pleomorphic myxovirus. It infects both monocotyledon and dicotyledon plants, and has a host range of at least 160 plant species. It is the only plant virus that is transmitted by thrips. Of which four species of vectors have been found.
The
virus
can
be
transmitted
only
in
the
larval
stages
of
the
thrips.
It
is
injested
during
feeding,
and
after
an
incubation
period
of
several
days
the
vector
becomes
infective
for
the
rest
of
its
life.TSWV
contains
5%
ssRNA,
19%
lipid,
7%
carbohydrate
and
the
rest
protein.
It
has
a
particle
weight
of
1I
x
10'
daltons,
and
sediments
at
about
500-520'S.
