Bacteria of lake Pyasino and adjacent rivers after an accidental diesel spill in 2020
O. V. Kolmakova1,2, M. Yu. Trusova1,2, O. A. Baturina3, M. R. Kabilov3
a:2:{s:4:"TEXT";s:408:"1Institute of Biophysics, Federal Research Center “Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences”, Krasnoyarsk, Russia
2Siberian Federal University, Krasnoyarsk, Russia
3SB RAS Genomics Core Facility, Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Science, Novosibirsk, Russia";s:4:"TYPE";s:4:"html";}
Keywords: bacterioplankton, sediments, next-generation sequencing, oil spill, Lake Pyasino, 16S rRNA
Abstract
For the first time, the bacterial composition of water and sediments in Lake Pyasino and adjacent rivers was studied by next-generation sequencing. On the river sections exposed to diesel spillage in May 2020, no hydrocarbon-degrading bacteria were found. The Daldykan and Ambarnaya rivers, located downstream of the spill site, were dominated by bacteria that oxidize sulfur and heavy metals. At the same time, these bacteria were not found in Lake Pyasino which was dominated by small cyanobacteria. Thus, the composition of bacteria in the water and sediments of the Norilsk-Pyasino lake-river system corresponds to the technogenic impact to which it is exposed, and also demonstrates the buffer properties of Lake Pyasino on the way of water flow into the Kara Sea.
|
