title: Systemic resistance induced by Bacillus lipopeptides in Beta vulgaris reduces infection by the rhizomania disease vector Polymyxa betae.
abstract: The control of rhizomania, one of the most important diseases of sugar beet caused by the Beet necrotic yellow vein virus, remains limited to varietal resistance. In this study, we investigated the putative action of Bacillus amylolequifaciens lipopeptides in achieving rhizomania biocontrol through the control of the virus vector Polymyxa betae. Some lipopeptides that are produced by bacteria, especially by plant growth-promoting rhizobacteria, have been found to induce systemic resistance in plants. We tested the impact of the elicitation of systemic resistance in sugar beet through lipopeptides on infection by P. betae. Lipopeptides were shown to effectively induce systemic resistance in both the roots and leaves of sugar beet, resulting in a significant reduction in P. betae infection. This article provides the first evidence that induced systemic resistance can reduce infection of sugar beet by P. betae.
authors.affiliation: Earth and Life Institute, Applied Microbiology Phytopathology, Université catholique de Louvain, 1348, Louvain-la-Neuve, Belgium.
authors.forename: Nicolas
authors.initials: N
authors.lastname: Desoignies
authors.forename: Florence
authors.initials: F
authors.lastname: Schramme
authors.forename: Marc
authors.initials: M
authors.lastname: Ongena
authors.forename: Anne
authors.initials: A
authors.lastname: Legrève
mesh_terms: D000818:Animals; D001407:Bacillus / Q000378:metabolism*; D027461:Beta vulgaris / Q000235:genetics / Q000276:immunology / Q000382:microbiology* / Q000469:parasitology*; D060467:Disease Resistance / Q000187:drug effects / Q000276:immunology*; D004199:Disease Vectors; D018506:Gene Expression Regulation, Plant / Q000187:drug effects; D017343:Genes, Plant / Q000235:genetics; D055666:Lipopeptides / Q000494:pharmacology*; D010935:Plant Diseases / Q000276:immunology* / Q000382:microbiology / Q000469:parasitology; D010940:Plant Proteins / Q000235:genetics / Q000378:metabolism; D056909:Plasmodiophorida / Q000187:drug effects / Q000502:physiology*; D013170:Spores / Q000187:drug effects
chemical_list: D055666:Lipopeptides; D010940:Plant Proteins