**Author details**

Beata Pająk1,2 and Arkadiusz Orzechowski1,2\*

\*Address all correspondence to: orzechowski\_arkadiusz@wp.pl

1 Department of Physiological Sciences, Warsaw University of Life Sciences – SGGW, Warsaw, Poland

2 Electron Microscopy Platform, Mossakowski Medical Research Centre PAS, Warsaw, Poland
