Phylogeny and activity of proteobacteria in sediments from Lake Furnas / Gilberto Martins ... [and others] -- Proteobacteria forming nitrogen-fixing symbiosis with higher plants / Encarna Velázquez ... [and others] -- Proteobacteria and the endosymbiotic origin of mitochondrion / Yu-Juan Zhang, Jian-Fan Wen -- Interpreting diversity of proteobacteria based on 16S rRNA gene copy number / Konstantinos Ar. Kormas -- A harsh life to indigenous proteobacteria at the Andean Mountains : microbial diversity and resistance mechanisms towards extreme conditions / Virginia Helena Albarracín ... [and others] -- Molecular structure of a chromate resistance determinant of pseudomonas sp. Tik3 and its expression in different proteobacteria strains / Sofia Mindlin, Mayya Petrova, Zhosephine Gorlenko -- Sulfhydryl glycoconjugates produced by filamentous sheath-forming members of SS-proteobacteria / Minoru Takeda.