TY  - JOUR
AU  - Malembic-Maher, Sylvie
AU  - Desque, Delphine
AU  - Khalil, Dima
AU  - Salar, Pascal
AU  - Bergey, Bernard
AU  - Danet, Jean-Luc
AU  - Duret, Sybille
AU  - Dubrana-Ourabah, Marie-Pierre
AU  - Beven, Laure
AU  - Ember, Ibolyia
AU  - Acs, Zoltan
AU  - Della Bartola, Michele
AU  - MATERAZZI, ALBERTO
AU  - Fillipin, Luisa
AU  - Krnjajić, Slobodan
AU  - Krstić, Oliver
AU  - Tosevski, Ivo
AU  - Lang, Friederike
AU  - Jarausch, Barbara
AU  - Kolber, Maria
AU  - Jovic, Jelena
AU  - angelini, elisa
AU  - Arricau-Bouvery, Nathalie
AU  - Maixner, Michael
AU  - Foissac, Xavier
PY  - 2020-03-25
UR  - https://plantarum.izbis.bg.ac.rs/handle/123456789/644
AB  - Flavescence dorée (FD) is a European quarantine grapevine disease transmitted by the Deltocephalinae leafhopper Scaphoideus titanus. Whereas this vector had been introduced from North America, the possible European origin of FD phytoplasma needed to be challenged and correlated with ecological and genetic drivers of FD emergence. For that purpose, a survey of genetic diversity of these phytoplasmas in grapevines, S. titanus, black alders, alder leafhoppers and clematis were conducted in five European countries. Out of 132 map genotypes, only 11 were associated to FD outbreaks, three were detected in clematis, whereas 127 were detected in alder trees, alder leafhoppers or in grapevines out of FD outbreaks. Most of the alder trees were found infected, including 8% with FD genotypes M6, M38 and M50, also present in alders neighboring FD-free vineyards and vineyard-free areas. The Macropsinae Oncopsis alni could transmit genotypes unable to achieve transmission by S. titanus, while the Deltocephalinae Allygus spp. and Orientus ishidae transmitted M38 and M50 that proved to be compatible with S. titanus. Variability of vmpA and vmpB adhesin-like genes clearly discriminated 3 genetic clusters. Cluster Vmp-I grouped genotypes only transmitted by O. alni, while clusters Vmp-II and -III grouped genotypes transmitted by Deltocephalinae leafhoppers. Interestingly, adhesin repeated domains evolved independently in cluster Vmp-I, whereas in clusters Vmp-II and–III showed recent duplications. Latex beads coated with various ratio of VmpA of clusters II and I, showed that cluster II VmpA promoted enhanced adhesion to the Deltocephalinae Euscelidius variegatus epithelial cells and were better retained in both E. variegatus and S. titanus midguts. Our data demonstrate that most FD phytoplasmas are endemic to European alders. Their emergence as grapevine epidemic pathogens appeared restricted to some genetic variants pre-existing in alders, whose compatibility to S. titanus correlates with different vmp gene sequences and VmpA binding properties.
PB  - Public Library of Science
T2  - PLOS PATHOGENS
T1  - When a Palearctic bacterium meets a Nearctic insect vector: Genetic and ecological insights into the emergence of the grapevine Flavescence dore´e epidemics in Europe
IS  - 3
VL  - 16
DO  - 10.1371/journal.ppat.1007967
ER  - 

@article{
author = "Malembic-Maher, Sylvie and Desque, Delphine and Khalil, Dima and Salar, Pascal and Bergey, Bernard and Danet, Jean-Luc and Duret, Sybille and Dubrana-Ourabah, Marie-Pierre and Beven, Laure and Ember, Ibolyia and Acs, Zoltan and Della Bartola, Michele and MATERAZZI, ALBERTO and Fillipin, Luisa and Krnjajić, Slobodan and Krstić, Oliver and Tosevski, Ivo and Lang, Friederike and Jarausch, Barbara and Kolber, Maria and Jovic, Jelena and angelini, elisa and Arricau-Bouvery, Nathalie and Maixner, Michael and Foissac, Xavier",
year = "2020-03-25",
abstract = "Flavescence dorée (FD) is a European quarantine grapevine disease transmitted by the Deltocephalinae leafhopper Scaphoideus titanus. Whereas this vector had been introduced from North America, the possible European origin of FD phytoplasma needed to be challenged and correlated with ecological and genetic drivers of FD emergence. For that purpose, a survey of genetic diversity of these phytoplasmas in grapevines, S. titanus, black alders, alder leafhoppers and clematis were conducted in five European countries. Out of 132 map genotypes, only 11 were associated to FD outbreaks, three were detected in clematis, whereas 127 were detected in alder trees, alder leafhoppers or in grapevines out of FD outbreaks. Most of the alder trees were found infected, including 8% with FD genotypes M6, M38 and M50, also present in alders neighboring FD-free vineyards and vineyard-free areas. The Macropsinae Oncopsis alni could transmit genotypes unable to achieve transmission by S. titanus, while the Deltocephalinae Allygus spp. and Orientus ishidae transmitted M38 and M50 that proved to be compatible with S. titanus. Variability of vmpA and vmpB adhesin-like genes clearly discriminated 3 genetic clusters. Cluster Vmp-I grouped genotypes only transmitted by O. alni, while clusters Vmp-II and -III grouped genotypes transmitted by Deltocephalinae leafhoppers. Interestingly, adhesin repeated domains evolved independently in cluster Vmp-I, whereas in clusters Vmp-II and–III showed recent duplications. Latex beads coated with various ratio of VmpA of clusters II and I, showed that cluster II VmpA promoted enhanced adhesion to the Deltocephalinae Euscelidius variegatus epithelial cells and were better retained in both E. variegatus and S. titanus midguts. Our data demonstrate that most FD phytoplasmas are endemic to European alders. Their emergence as grapevine epidemic pathogens appeared restricted to some genetic variants pre-existing in alders, whose compatibility to S. titanus correlates with different vmp gene sequences and VmpA binding properties.",
publisher = "Public Library of Science",
journal = "PLOS PATHOGENS",
title = "When a Palearctic bacterium meets a Nearctic insect vector: Genetic and ecological insights into the emergence of the grapevine Flavescence dore´e epidemics in Europe",
number = "3",
volume = "16",
doi = "10.1371/journal.ppat.1007967"
}

Malembic-Maher, S., Desque, D., Khalil, D., Salar, P., Bergey, B., Danet, J., Duret, S., Dubrana-Ourabah, M., Beven, L., Ember, I., Acs, Z., Della Bartola, M., MATERAZZI, A., Fillipin, L., Krnjajić, S., Krstić, O., Tosevski, I., Lang, F., Jarausch, B., Kolber, M., Jovic, J., angelini, e., Arricau-Bouvery, N., Maixner, M.,& Foissac, X.. (2020-03-25). When a Palearctic bacterium meets a Nearctic insect vector: Genetic and ecological insights into the emergence of the grapevine Flavescence dore´e epidemics in Europe. in PLOS PATHOGENS
Public Library of Science., 16(3).
https://doi.org/10.1371/journal.ppat.1007967

Malembic-Maher S, Desque D, Khalil D, Salar P, Bergey B, Danet J, Duret S, Dubrana-Ourabah M, Beven L, Ember I, Acs Z, Della Bartola M, MATERAZZI A, Fillipin L, Krnjajić S, Krstić O, Tosevski I, Lang F, Jarausch B, Kolber M, Jovic J, angelini E, Arricau-Bouvery N, Maixner M, Foissac X. When a Palearctic bacterium meets a Nearctic insect vector: Genetic and ecological insights into the emergence of the grapevine Flavescence dore´e epidemics in Europe. in PLOS PATHOGENS. 2020;16(3).
doi:10.1371/journal.ppat.1007967 .

Malembic-Maher, Sylvie, Desque, Delphine, Khalil, Dima, Salar, Pascal, Bergey, Bernard, Danet, Jean-Luc, Duret, Sybille, Dubrana-Ourabah, Marie-Pierre, Beven, Laure, Ember, Ibolyia, Acs, Zoltan, Della Bartola, Michele, MATERAZZI, ALBERTO, Fillipin, Luisa, Krnjajić, Slobodan, Krstić, Oliver, Tosevski, Ivo, Lang, Friederike, Jarausch, Barbara, Kolber, Maria, Jovic, Jelena, angelini, elisa, Arricau-Bouvery, Nathalie, Maixner, Michael, Foissac, Xavier, "When a Palearctic bacterium meets a Nearctic insect vector: Genetic and ecological insights into the emergence of the grapevine Flavescence dore´e epidemics in Europe" in PLOS PATHOGENS, 16, no. 3 (2020-03-25),
https://doi.org/10.1371/journal.ppat.1007967 . .