0000000000805046
AUTHOR
L Cavicchi
FIRST REPORT OF HOSTA VIRUS X (HVX) INFECTING HOSTA IN ITALY
Species of Hosta (Liliaceae) are herbaceous perennials more often grown for their foliage (blue, gold, green or variegated) then for their flowers. Virus diseases reported elsewhere in the word on cultivated hosta species include Hosta virus X (HVX), first described in USA in 1996, and considered to be the main pathogen of this genus. In October of 2010, the following systemic virus-like symptoms were observed on leaves of three varieties cultivated in Emilia-Romagna region (Italy) (“Gold Standard”, “Sum and Substance” and “Whirlwind”): irregular green blotched scattered in the yellow lamina, green bands running along the veins having an “ink-bleeding” look, malformations, different leaf th…
Molecular characterization and Phylogenetic analysis of Turnip mosaic virus (TuMV) in Erysimum linifolium L. in Italy
In the Summer of 2012, Erysimum linifolium L. pot plants produced at an ornamental grower in Liguria region (northern Italy), showed unusual virus-like disease of dark mottle and stripes on mauve-purple petals. A virus was mechanically transmitted from symptomatic flowers to several test plant species belonging to Chenopodiaceae and Brassicaceae families. This virus was identified as an isolated of turnip mosaic virus (TuMV) by PAS-ELISA analysis, electron microscopy negatively stained crud extracts and immuno-electron microscopy (IEM) tests. In the naturally infected E. linifolium plants, TuMV occurred alone, since any other viruses either by electron microscopy or mechanical inoculations …