Satellite Panicum Mosaic Virus (SPMV)
Symptoms: Coinoculation of panicum
mosaic virus (PMV) with its satellite virus (SPMV) results
in a severe chlorotic mottle on pearl millet (Qiu
et al. 1998).
Pathogen and disease characteristics: The virus is a
mechanically transmitted 42S isometric particle, 17 nm in diameter,
but it is not infectious alone. Contains two RNA species (14 and
34S) and a single protein (15,500 daltons). Satellite panicum
mosaic virus is serologically unrelated to panicum
mosaic virus (PMV), but depends on PMV for replication. Two
serotypes are known (Buzen et al. 1984).
Host range: Host range is not well defined but is probably
identical to that of panicum mosaic virus.
See note on panicum mosaic virus.
Geographic distribution: USA (Kansas).
Nomenclature discrepancies: None.
Seed transmission: Not known to be transmitted by seed.
Primary citations: As above.
Department of Agriculture
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Original posting: June 5, 1999.