GARCION, Christophe; EVEILLARD, Sandrine; RENAUDIN, Joël

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GARCION, Christophe
Biologie du fruit et pathologie [BFP]
Université Sciences et Technologies - Bordeaux 1 [UB]

EVEILLARD, Sandrine
Biologie du fruit et pathologie [BFP]
Université Sciences et Technologies - Bordeaux 1 [UB]

RENAUDIN, Joël
Biologie du fruit et pathologie [BFP]
Université Sciences et Technologies - Bordeaux 1 [UB]

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Article de revue

Ce document a été publié dans

Bulletin of Insectology. 2011, vol. 64, p. S169 - S170

Department of Agricultural and Food Sciences

Résumé en anglais

A report describing the strong resistance and tolerance of the accession PI128655 of Solanum peruvianum to two BLTVA strains (beet leafhopper transmitted virescence agent; `Candidatus Phytoplasma trifolii') was published almost twenty years ago. This work was revisited using another BLTVA strain and the PI128655 plants. No resistance or tolerance was observed. Instead the plants showed either one of two different sets of symptoms. A genetic control of the response to the phytoplasma isolated by the PI128655 plants was demonstrated using clones of host plants. However we obtained experimental evidence that the BLTVA isolate lacked homogeneity or stability, which could also explain the occurrence of two sets of symptoms. A possible hypothesis is that the PI128655 plants, by interfering with the competition between the 'components' of the BLTVA isolate, can alter the final composition of the phytoplasma population and therefore influence the induced symptoms.< Réduire

Mots clés

branched inflorescence

Mots clés en anglais

BLTVA

'Candidatus Phytoplasma trifolii'

Solanum peruvianum

mixed infection

plasmid

TRANSMITTED VIRESCENCE AGENT

BIG BUD DISEASE

Origine

Importé de hal

Unités de recherche

Biologie du Fruit & Pathologie (BFP) - UMR 1332