Introduction, history etc.., Miklos Müller, The Rockefeller University, USA, - Anaerobic Eukaryotes in Persuit Normality: the Eolution of mitochondria-derived organelle, William Martin, Germany, - Protein Import into Hydrogenosomes and Mitosomes, Abhijith Radhakrishna Makki, Jan Tachezy, Pavel Dolezal, - Structure of the Hydrogenosome (morphogenesis, electron microscopy, comparison of various hydrogenosomes..), Marlene Benchimol, Brasil, - Hydrogenosomes of anaerobic ciliates, Johannes H.P. Hackstein, The Netherlands, - Metabolism of trichomonad hydrogenosomes (energy metabolism, electron transport...), Ivan Hrdy, Charles University, Czech Republic, - Hydrogenosomes of anaerobic chytrids (Neocallimastix, Piromyces), L. Tielens, J. Hellemond, F. Voncken, J. Heckstein, - The proteome of T. vaginalis hydrogenosomes, Petr Rada Charles University, Czech Republic, - Mitosomes in parasitic protists: Entamoeba histolytica, Giardia intestinalis, microsporidia..., J. Tachezy, Pavel Dolezal, - Remnant mitochondria of Cryptosporidium parvum, Anastasios Tsaousis, UK, - Mitochondrion-derived organelles in free-living protists, A. Roger M. Kolísko, - Organisms without mitochondria, how it may happen?, V. Hampl.