1. THE DIVERSITY OF PROTIST COMMUNITIES IN INLAND SALINE LAKES AND RIVERS OF THE VOLGA-URAL STEPPES (RUSSIA). Authors: ANDREY PLOTNIKOV, ELENA SELIVANOVA, DARIA POSHVINA, YURI KHLOPKO.2. THE PROKARYOTIC DIVERSITY IN CULTURES OF HALOPHILIC PHOTOTROPHIC AND HETEROTROPHIC PROTISTS. Authors: ELENA SELIVANOVA, YURI KHLOPKO, ANDREY PLOTNIKOV.