Interaction between endophytic bacteria from citrus plants and the phytopathogenic bacteria Xylella fastidiosa, causal agent of citrus-variegated chlorosis - Lacava, P.T.; Araújo, Welington Luiz de; Marcon, J.; Maccheroni Júnior, Walter; Azevedo, João Lucio de (Letters in Applied Microbiology, 2004)