In 2002, mosaic symptoms associated with yellowish ringspots were observed on leaves of a hybrid of lobelia (Lobelia spp.) grown in a public garden in Alsace (France). In 2003, similar symptoms were observed in Lobelia laxiflora in the Hanbury botanical garden (La Mortola, Italy) and the botanical
Bituminaria bituminosa (L.) Stirton (pitch trefoil) is a perennial legume endemic to the Mediterranean Basin used as forage in arid areas and for stabilization of degraded soils. Mosaic and chlorotic ringspot symptoms have been observed in leaves of B. bituminosa in the Provence-Alpes-Côte d'Azur
During surveys of Dichondra repens (kidneyweed, family Convolvulaceae) turfs in public gardens of the Franco-Italian Riviera from 1993 to 2003, leaf mosaic and yellow ringspot symptoms have been observed in Antibes, Menton, Nice, and Vallauris (France) and San Remo and La Mortola (Italy). Isolates
SUMMARY Taxonomy: There are three members of the genus Polerovirus (family Luteoviridae) that induce yellowing of sugar beet: Beet mild yellowing virus (BMYV), Beet chlorosis virus (BChV) and Beet western yellows virus-USA (BWYV-USA, Fig. 1). Non-beet-infecting isolates of BWYV found particularly
SUMMARY Taxonomic relationship: Type member of the genus Closterovirus, family Closteroviridae. A member of the alphavirus-like supergroup of positive-strand RNA viruses. Physical properties: Virions are flexuous filaments of approximately 1300 nm in length and approximately 12 nm in diameter that
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