Total bacterial cell number and the number of nucleoid-containing cells in various biotopes of Rybinsk Reservoir

摘要

Total bacterial cell number and the number of nucleoid-containing bacteria were determined in various biotopes of Rybinsk Reservoir. The mean content of nucleoid-containing cells in the water column, bottom sediments, periphyton of higher aquatic plants, and blankets formed by filamentous green algae was found to comprise 25.4%, 42.4%, 51.9%, and 76.6%, respectively. The rate of reproduction of bacterioplankton calculated from the number of nucleoid-containing cells was 1.4 to 2.7 times higher than the reproduction rate calculated from the dynamics of the total bacterial cell number. [References: 12]