Learn More
Electron microscopy of extracts from diseased Polygonum convolvulus plants from Piedmont (Italy) revealed particles with the morphological features of a tospovirus. Sequencing of the full-length small (S) and medium (M) genome segments indicated that the virus is a member of a new Tospovirus species provisionally named Polygonum ringspot virus. A feature(More)
Studies of phytoplasma-insect vector interactions and epidemiological surveys of plant yellows associated with the stolbur phytoplasma (StolP) require the identification of relevant candidate genes and typing markers. A recent StolP genome survey identified a partial coding sequence, SR01H10, having no homologue in the "Candidatus Phytoplasma asteris"(More)
Viral infections are known to have a detrimental effect on grapevine yield and performance, but there is still a lack of knowledge about their effect on the quality and safety of end products. Vines of Vitis vinifera cv. Nebbiolo clone 308, affected simultaneously by Grapevine leafroll-associated virus 1 (GLRaV-1), Grapevine virus A (GVA), and Rupestris(More)
TaqMan one-step real-time qRT-PCR assays were developed for the quantitation of Grapevine leafroll associated virus-1 and -3 (GLRaV-1 and -3), Grapevine virus A (GVA), Grapevine fanleaf virus (GFLV) and Grapevine fleck virus (GFkV) in Vitis vinifera L. Virus load in the progenies of three 'Nebbiolo' clones planted in two experimental vineyards in Piemonte(More)
Ensuring a seamless connection when users are moving across radio cells is essential to guarantee a high communication quality. In this paper, performance of TCP during the handover in a Long Term Evolution (LTE) network is investigated. Specifically, mobile users with high bit rates TCP services are considered, and the impacts of the intra LTE handover(More)
Bois noir phytoplasma (BNp), widespread in wine-producing areas of Europe and endemic in France and Italy, is classified in the 16SrXII-A subgroup, whose members are referred to as Stolbur phytoplasmas. The 16S rDNA gene of Stolbur phytoplasma shows low variability, and few non-ribosomal genes are available as markers to assess variation among isolates. We(More)
An infectious agent was transmitted mechanically from samples of Viola spp. showing white mosaic and leaf deformation to Nicotiana benthamiana. dsRNA extracted from the N. benthamiana plants migrated as four specific bands that were absent in non-inoculated plants. Sequence analysis of cDNA clones generated from the second-smallest dsRNA showed the greatest(More)
To highlight different transcriptional behaviors of the phytoplasma in the plant and animal host, expression of 14 genes of "Candidatus Phytoplasma asteris," chrysanthemum yellows strain, was investigated at different times following the infection of a plant host (Arabidopsis thaliana) and two insect vector species (Macrosteles quadripunctulatus and(More)
The presence of nine of the most economical important grapevine viruses was surveyed in eight spontaneous grapevine populations from natural areas of Sicily. Arabis mosaic virus (ArMV), Grapevine fanleaf virus (GFLV), Grapevine leafroll-associated virus 1, 2 and 3 (GLRaV-1, −2 and −3), Grapevine virus A and B (GVA, GVB), Grapevine rupestris stem(More)
  • 1