Molecular characterization of a phytoplasma of group 16SrIX related to 'Ca. Phytoplasma phoenicium' in periwinkle in Brazil - Barbosa, Júlio César; Eckstein, Bárbara; Bergamin Filho, Armando; Bedendo, Ivan Paulo; Kitajima, Elliot Watanabe (Tropical Plant Pathology, 2012)