Abstract—
The article presents long-term data of abundance and biomass of bacterial biofilms forming on Phragmites australis (Cav.), one of widespread species of the Rybinsk Reservoir higher aquatic plants. Daily production of bacteria and phytoepiphyton is reported, as well as the rate of bacterial degradation of organic matter. The numbers of microorganisms belonging to various physiological groups were determined, and their relative abundance in the total bacterioepiphyton was determined. Epiphyton taxonomic diversity was determined using molecular genetic techniques. Bacteria of the genus Cellvibrio (class Gammaproteobacteria) were found to be responsible for cellulose degradation.
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ACKNOWLEDGMENTS
The authors are grateful to S.A. Kurbatova for her help in editing the manuscript, to A.I. Kopylov for material support and consultations related to the work, and to S.E. Bolotov for hius assistance with computer graphics.
FUNDINGThe work was carried out within the framework of the State Assignments nos. 121051100102-2 and 121051100109-1 and was supported by the Russian Foundation for Basic Research, project no. 09-04-00977 and the Biological Resources of Russia Program of Basic Research, Russian Academy of Sciences.
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Fedorov, R.A., Rybakova, I.V., Belkova, N.L. et al. Structural and Functional Characterization of Bacterial Biofilms Formed on Phragmites australis (Cav.) in the Rybinsk Reservoir. Microbiology 91, 324–335 (2022). https://doi.org/10.1134/S0026261722300105
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DOI: https://doi.org/10.1134/S0026261722300105