VIRAL INFECTION OF PICOCYANOBACTERIAE IN THE RYBINSK RESERVOIR DURING THE FREEZE-UP PERIOD
https://doi.org/10.18500/1684-7318-2017-2-128-135
Abstract
The virioplankton and planktonic picocyanobacteria abundances in the deep and shallow waters of the Rybinsk reservoir during the freeze-up period (the water temperature within 0.3 - 0.9°C) varied within (37.1 - 84.1)×106 ((57.3±2.1)×106 on the average) particles/ml and (13.5 - 75.0)×103 ((48.7±3.4)×103 on the average) cells/ml, respectively. The fraction of picocyanobacteria with viruses attached to their cell surface was 6.5 - 29.0% (12.0±0.8% on the average). The proportion of visible infected cells was 0.7 - 7.6% (2.2±0.3% on the average) of the numbers of picocyanobacteriae. Apparently, viruses play an important role in the picocyanobacteriae abundance regulation during the freeze-up period.
About the Authors
A. I. Kopylov
Papanin Institute for Biology of Inland Waters, Russian Academy of Science
Russian Federation
Russian Federation
D. B. Kosolapov
Papanin Institute for Biology of Inland Waters, Russian Academy of Science
Russian Federation
Russian Federation
E. A. Zabotkina
Papanin Institute for Biology of Inland Waters, Russian Academy of Science
Russian Federation
Russian Federation
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Review
For citations:
Kopylov A.I., Kosolapov D.B., Zabotkina E.A. VIRAL INFECTION OF PICOCYANOBACTERIAE IN THE RYBINSK RESERVOIR DURING THE FREEZE-UP PERIOD. Povolzhskiy Journal of Ecology. 2017;(2):128-135. (In Russ.) https://doi.org/10.18500/1684-7318-2017-2-128-135
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