1. Department of Biochemistry, Microbiology and Biotechnology, Yerevan State University , 0025 Yerevan , Armenia
2. Research Institute of Biology, Biology Faculty, Yerevan State University , 1 A. Manoukian Str., 0025 Yerevan , Armenia
3. Institute of Microbiology, NAS Belarus , 220084 Minsk , Belarus
4. L.A. Orbeli Institute of Physiology NAS RA , 0028 Yerevan , Armenia