title: Structural determination of the O-chain polysaccharide from Agrobacterium tumefaciens, strain DSM 30205.
abstract: Agrobacterium tumefaciens is a Gram-negative, phytopathogenic bacterium and is characterized by an unique mode of action on dicotyledonous plants: it is able to genetically modify the host, and because of this feature, it is used as a tool for transgenic plants. Many experiments have demonstrated that lipopolysaccharides (LPSs) play an important role for the disease development, as they are involved in the adhesion process of the bacterium on the plant cell wall. Despite the wealth of information on the role of LPS on phytopathogenesis, the present paper appears as the first report on the molecular primary structure of the O-chain produced from Agrobacterium. Its repeating unit was determined by means of chemical and spectroscopical analysis, and has the following structure: (3)-alpha-D-Araf-(1-->3)-alpha-l-Fucp-(1-->.
authors.affiliation: Dipartimento di Chimica Organica and Biochimica, Università di Napoli, Italy. decastro@unina.it
authors.forename: Cristina
authors.initials: C
authors.lastname: De Castro
authors.forename: Olga
authors.initials: O
authors.lastname: De Castro
authors.forename: Antonio
authors.initials: A
authors.lastname: Molinaro
authors.forename: Michelangelo
authors.initials: M
authors.lastname: Parrilli
mesh_terms: D016960:Agrobacterium tumefaciens / Q000737:chemistry* / Q000472:pathogenicity; D002236:Carbohydrate Conformation; D008070:Lipopolysaccharides / Q000737:chemistry* / Q000378:metabolism; D010935:Plant Diseases / Q000382:microbiology*; D010944:Plants / Q000382:microbiology
chemical_list: D008070:Lipopolysaccharides