Minor cultures as hosts for vectors of extensive crop diseases: Does Salvia sclarea act as a pathogen and vector reservoir for lavender decline?
CHUCHE, Julien
Unité Mixte de Recherche en Santé Végétale (INRA/ENITA) [UMRSV]
Department of Biology
Unité Mixte de Recherche en Santé Végétale (INRA/ENITA) [UMRSV]
Department of Biology
RIVOAL, Jean-Baptiste
Centre Régionalisé Interprofessionnel d'Expérimentation en Plantes à Parfum, Aromatiques et Médicinales [CRIEPPAM]
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Centre Régionalisé Interprofessionnel d'Expérimentation en Plantes à Parfum, Aromatiques et Médicinales [CRIEPPAM]
CHUCHE, Julien
Unité Mixte de Recherche en Santé Végétale (INRA/ENITA) [UMRSV]
Department of Biology
Unité Mixte de Recherche en Santé Végétale (INRA/ENITA) [UMRSV]
Department of Biology
RIVOAL, Jean-Baptiste
Centre Régionalisé Interprofessionnel d'Expérimentation en Plantes à Parfum, Aromatiques et Médicinales [CRIEPPAM]
< Leer menos
Centre Régionalisé Interprofessionnel d'Expérimentation en Plantes à Parfum, Aromatiques et Médicinales [CRIEPPAM]
Idioma
en
Article de revue
Este ítem está publicado en
Journal of Pest Science. 2017, vol. Online First, n° 1, p. np
Springer Verlag
Resumen en inglés
Stolbur is a phytoplasma disease affecting crops worldwide. The planthopper Hyalesthes obsoletus is the main natural vector of ‘Candidatus Phytoplasma solani’ responsible of stolbur. In France, lavender (Lavandula angustifolia) ...Leer más >
Stolbur is a phytoplasma disease affecting crops worldwide. The planthopper Hyalesthes obsoletus is the main natural vector of ‘Candidatus Phytoplasma solani’ responsible of stolbur. In France, lavender (Lavandula angustifolia) and lavandin (Lavandula × intermedia) are strongly affected by this phytoplasma. These plant species are both hosts for the phytoplasma and its insect vector. In 2011, catches of adults were exceptionally sizable on one of the clones of lavandin most tolerant to lavender decline. A high population level of ‘Ca. P. solani’ vector was also observed on the adjacent plot of clary sage, Salvia sclarea. In order to clarify the potential role of S. sclarea as a host plant for H. obsoletus and ‘Ca. P. solani,’ we conducted field surveys and laboratory experiments. The uprooting of clary sage and root examination showed the presence of nymphs during winter. Harvested nymphs have been reared on S. sclarea from seedlings in a greenhouse for many generations. By performing its whole lifecycle on clary sage, we demonstrated for the first time that S. sclarea is a host plant of H. obsoletus and could be a source of stolbur vector. Nevertheless, status of clary sage as host plant of phytoplasma in the field up to now is not so clear. On 42 Q-PCR runs done on S. sclarea, 41 were negative to the phytoplasma, and one positive. Experimental transmission with infected H. obsoletus sampled on infected lavender showed that clary sage plant could be infected, expressed symptoms and multiplied ‘Ca. P. solani.’< Leer menos
Palabras clave
santé des plantes
pathologie végétale
lavandula
insecte vecteur
bactérie phytopathogène
Palabras clave en inglés
Bois noir
Lavender decline
Host plant shift
Hyalesthes obsoletus rearing
Phytoplasma
plant health
insect vectors
phytopathogenic bacteria
Orígen
Importado de HalCentros de investigación