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HOME > J. Microbiol > Volume 57(4); 2019 > Article
Journal Article
Co-occurrence patterns between phytoplankton and bacterioplankton across the pelagic zone of Lake Baikal during spring
Ivan S. Mikhailov 1,2, Yuri S. Bukin 1,2, Yulia R. Zakharova 1,2, Marina V. Usoltseva 1, Yuri P. Galachyants 1,2, Maria V. Sakirko 1, Vadim V. Blinov 1, Yelena V. Likhoshway 1,2
Journal of Microbiology 2019;57(4):252-262.
DOI: https://doi.org/10.1007/s12275-019-8531-y
Published online: March 30, 2019
1Limnological Institute, Siberian Branch of the Russian Academy of Sciences, Irkutsk, Russia, 2Irkutsk Scientific Center, Siberian Branch of the Russian Academy of Sciences, Irkutsk, Russia1Limnological Institute, Siberian Branch of the Russian Academy of Sciences, Irkutsk, Russia, 2Irkutsk Scientific Center, Siberian Branch of the Russian Academy of Sciences, Irkutsk, Russia
Corresponding author:  Ivan S. Mikhailov , Tel: +7-3952-42-65-04, 
Received: 27 September 2018   • Revised: 9 November 2018   • Accepted: 26 November 2018
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Abstract

Phytoplankton and bacterioplankton play a key role in carbon cycling of aquatic ecosystems. In this study, we found that co-occurrence patterns between different types of phytoplankton, bacterioplankton, and environmental parameters in Lake Baikal during spring were different over the course of three consecutive years. The composition of phytoplankton and bacterial communities was investigated using microscopy and 16S rRNA gene pyrosequencing, respectively. Non-metric multidimensional scaling (NMDS) revealed a relationship between the structure of phytoplankton and bacterial communities and temperature, location, and sampling year. Associations of bacteria with diatoms, green microalgae, chrysophyte, and cryptophyte were identified using microscopy. Cluster analysis revealed similar correlation patterns between phytoplankton abundance, number of attached bacteria, ratio of bacteria per phytoplankton cell and environmental parameters. Positive and negative correlations between different species of phytoplankton, heterotrophic bacteria and environmental parameters may indicate mutualistic or competitive relationships between microorganisms and their preferences to the environment.

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    Co-occurrence patterns between phytoplankton and bacterioplankton across the pelagic zone of Lake Baikal during spring
    J. Microbiol. 2019;57(4):252-262.   Published online March 30, 2019
    DOI: https://doi.org/10.1007/s12275-019-8531-y
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