Journal of Plant Pathology (2006) 88, p. S53 (Parrella et al.)

G. Parrella and M.G. Bellardi (2006)
Molecular characterization of Alfalfa mosaic virus isolates from officinal plants
Journal of Plant Pathology 88 (3, Special Issue), S53-S53
S.I.Pa.V XIII National Meeting - Foggia, 12-16 September 2006 - Poster
Abstract: Seven new Alfalfa mosaic virus (AMV) isolates from officinal plants have been characterized at the molecular level. Isolates were from symptomatic plants of Lavandula hybrida (three varieties of lavandins), Lavandula x alardii (one hybrid) and single plants of Lippia citriodora, Ocimum basilicum and Symphytum tuberosum. In all instances symptoms consisted in a more or less extended yellow bright mosaic of the leaves. The nucleote and amino acid sequences of the coat protein (CP) and movement protein (MP) were determined. Phylogenetic analysis of CP and MP sequences showed that all isolates belonged to AMV subgroup I except for that from the'Sumiens' variety of L. hybrida, which was related to subgroup II. Data were confirmed by RFLP of amplicons from CP and MP. Since subgroup II isolates have been detected so far only in France, the finding of one of its member in Italy could be explained with the accidental introduction of infected propagating materials form France where the cv. 'Sumiens' was constituted several years ago. The possibility of spreading of subgroup II isolates in Italy and related consequences are discussed.
Database assignments for author(s): Giuseppe Parrella, Maria Grazia Bellardi

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Alfalfa mosaic virus	Basil (Ocimum)
	Alfalfa mosaic virus	Lavender (Lavandula)	France
	Alfalfa mosaic virus	Lavender (Lavandula)	Italy