Bacterial communities during the period of massive under-ice dinoflagellate development in Lake Baikal

被引：0
|
作者：
M. V. Bashenkhaeva
Yu. R. Zakharova
Yu. P. Galachyants
I. V. Khanaev
Ye. V. Likhoshway
机构：
[1] Russian Academy of Sciences,Limnological Institute, Siberian Branch
来源：
Microbiology | 2017年 / 86卷
关键词：
Lake Baikal; dinoflagellates; under-ice bacterial communities; taxonomic composition; pyrosequencing;
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学科分类号：
摘要：
Taxonomic diversity of Lake Baikal bacteria during the period of massive under-ice development of dinoflagellate Gymnodinium baicalense was studied. During the ice-covered period in 2013, both the abundance and biomass of G. baicalense were several orders of magnitude higher than the values for previous years, the maximum values were 8.9 × 106 cells/L and 405 g/m3, respectively. The taxonomic structure of bacterial communities was determined using the data obtained by 454 pyrosequencing (Roche) with Mothur 1.19.0. Predominance of three phyla was revealed: Bacteroidetes, Proteobacteria, and Actinobacteria. Massive dinoflagellate development resulted in a considerable decrease in the richness and diversity of bacterial communities compared to the results of the earlier long-term studies.
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页码：524 / 532
页数：8
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