Your browser doesn't support javascript.
loading
Molecular Typing of Bois Noir Phytoplasma Strains in the Chianti Classico Area (Tuscany, Central Italy) and Their Association with Symptom Severity in Vitis vinifera 'Sangiovese'.
Pierro, R; Passera, A; Panattoni, A; Casati, P; Luvisi, A; Rizzo, D; Bianco, P A; Quaglino, F; Materazzi, A.
Affiliation
  • Pierro R; First, third, fifth, and ninth authors: Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy; second, fourth, seventh, and eighth authors: Department of Agricultural and Environmental Sciences-Production, Landscape, Agroenergy, University of Mi
  • Passera A; First, third, fifth, and ninth authors: Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy; second, fourth, seventh, and eighth authors: Department of Agricultural and Environmental Sciences-Production, Landscape, Agroenergy, University of Mi
  • Panattoni A; First, third, fifth, and ninth authors: Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy; second, fourth, seventh, and eighth authors: Department of Agricultural and Environmental Sciences-Production, Landscape, Agroenergy, University of Mi
  • Casati P; First, third, fifth, and ninth authors: Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy; second, fourth, seventh, and eighth authors: Department of Agricultural and Environmental Sciences-Production, Landscape, Agroenergy, University of Mi
  • Luvisi A; First, third, fifth, and ninth authors: Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy; second, fourth, seventh, and eighth authors: Department of Agricultural and Environmental Sciences-Production, Landscape, Agroenergy, University of Mi
  • Rizzo D; First, third, fifth, and ninth authors: Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy; second, fourth, seventh, and eighth authors: Department of Agricultural and Environmental Sciences-Production, Landscape, Agroenergy, University of Mi
  • Bianco PA; First, third, fifth, and ninth authors: Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy; second, fourth, seventh, and eighth authors: Department of Agricultural and Environmental Sciences-Production, Landscape, Agroenergy, University of Mi
  • Quaglino F; First, third, fifth, and ninth authors: Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy; second, fourth, seventh, and eighth authors: Department of Agricultural and Environmental Sciences-Production, Landscape, Agroenergy, University of Mi
  • Materazzi A; First, third, fifth, and ninth authors: Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy; second, fourth, seventh, and eighth authors: Department of Agricultural and Environmental Sciences-Production, Landscape, Agroenergy, University of Mi
Phytopathology ; 108(3): 362-373, 2018 Mar.
Article in En | MEDLINE | ID: mdl-29027886
ABSTRACT
Bois noir (BN) is the most widespread disease of the grapevine yellows complex in the Euro-Mediterranean area. BN is caused by 'Candidatus Phytoplasma solani' (BNp), transmitted from herbaceous plants to grapevine by polyphagous insect vectors. In this study, genetic diversity among BNp strains and their prevalence and possible association with grapevine symptom severity were investigated in a Sangiovese clone organic vineyard in the Chianti Classico area (Tuscany). Field surveys over 2 years revealed a range of symptom severity on grapevine and an increase of BN incidence. A TaqMan allelic discrimination assay detected only tufB type b among BNp strains, suggesting the prevalence of the bindweed-related ecology. Nucleotide sequence analyses of vmp1 and stamp genes identified 12 vmp1 and 16 stamp sequence variants, showing an overall positive selection for such genes. The prevalent genotype was Vm43/St10, reported for the first time in this study and closely related to strains identified only in the French Eastern Pyrenees. BNp strains identified in the examined vineyard and mostly grouped in separate bindweed-related phylogenetic clusters showed statistically significant differences in their distribution in grapevines exhibiting distinct symptom severity. These results suggest the possible occurrence of a range of virulence within BNp strain populations in the Chianti Classico area.
Subject(s)
Key words
Fulltext
Add to My VHL
Print
XML
PubMed Links
Search on Google

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Plant Diseases / Vitis / Phytoplasma Type of study: Diagnostic_studies / Risk_factors_studies Country/Region as subject: Europa Language: En Journal: Phytopathology Journal subject: BOTANICA Year: 2018 Document type: Article
Fulltext
Add to My VHL
Print
XML
PubMed Links
Search on Google

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Plant Diseases / Vitis / Phytoplasma Type of study: Diagnostic_studies / Risk_factors_studies Country/Region as subject: Europa Language: En Journal: Phytopathology Journal subject: BOTANICA Year: 2018 Document type: Article