Oleksandr Polishchuk, senior researcher in M.G. Kholodny Institute of botany of NAS of Ukraine. Finished National University of "Kyiv-Mohyla Academy", Ukraine, master's degree in 2005. Working from 2003 in M.G. Kholodny Institute of botany of NAS of Ukraine. Research interests: photosynthesis, chlorophyll fluorescence, remote sensing, water quality, CO2 fluxes. Was a member of the International Society of Photosynthesis Research in 2006-2012