Insect Vectors (Hemiptera: Cixiidae) and Pathogens Associated with the Disease Syndrome "Basses Richesses" of Sugar Beet in France

Plant Disease
Alberto BressanElisabeth Boudon-Padieu

Abstract

The syndrome "basses richesses" (SBR) is a disease of sugar beet in eastern France associated with two phloem-restricted, nonculturable plant pathogens: a stolbur phytoplasma and a γ-3 proteobacterium, here called SBR bacterium. Three planthopper (Hemiptera: Cixiidae) species were found to live near and within sugar beet fields in eastern France: Cixius wagneri, Hyalesthes obsoletus, and Pentastiridius leporinus. The role of these planthoppers in spreading the two pathogens to sugar beet was studied. Based on its abundance and high frequency of infection with the SBR bacterium, P. leporinus was considered to be the economic vector of SBR disease. C. wagneri, the primary vector of 'Candidatus Phlomobacter fragariae' to strawberry in western France, also was found to be infected by the SBR bacterium and to transmit the pathogen to sugar beet. Neither C. wagneri nor P. leporinus were infected by stolbur phytoplasma. Populations of H. obsoletus living on bindweed (Convolvulus arvensis) and nettle (Urtica dioica) collected near sugar beet fields did not carry the SBR bacterium, but were highly infected with two restriction fragment length polymorphism-differentiable stolbur phytoplasma isolates. In transmission assays, only the bind...Continue Reading

References

Dec 8, 2005·Annual Review of Entomology·Phyllis G Weintraub, LeAnn Beanland

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Citations

Mar 10, 2009·Applied and Environmental Microbiology·Agnès CimermanXavier Foissac
Oct 31, 2012·Molecular Ecology·Emmanuelle JousselinOlivier Duron
Feb 18, 2010·Bulletin of Entomological Research·S BertinD Bosco

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