Analysis of Diversity of Reindeer Rumen Bacteria Involved in the Cellulose Decomposition

DOI

10.2991/assehr.k.200113.170How to use a DOI?

Keywords

cellulolytic bacteria, rumen, biodiversity, Rangifer tarandus, NGS

Abstract

Bacteria involved in the cellulose decomposition are dominant in the community of microorganisms of the rumen of various ruminants, including reindeer. Reindeer (Rangifer tarandus) is a unique ruminant adapted to live in adverse conditions of meager diet of the Far North. As a result of the study, it was shown that the proportion of bacteria phyla of Firmicutes and Bacteroidetes, which includes the overwhelming majority of cellulolytic bacteria, comprised from 84.3, which includes the overwhelming majority of cellulolytic bacteria, comprised from 84.3% to 86.9, which includes the overwhelming majority of cellulolytic bacteria, comprised from 84.3% to 86.9% of the rumen bacterial community: not more than 4, which includes the overwhelming majority of cellulolytic bacteria, comprised from 84.3% to 86.9% of the rumen bacterial community: not more than 4% of Proteobacteria; Cyanobacteria, Spirochaetes, Verrucomicrobia and Actinobacteria – not more than 5.6 – not more than 5.6%, the rest – in a minor amount. Phylum Bacteroidetes was dominant among representatives of other phyla; their share ranged from 45.6 was dominant among representatives of other phyla; their share ranged from 45.6% to 52.1 was dominant among representatives of other phyla; their share ranged from 45.6% to 52.1%. The largest proportion of cellulolytic bacteria was detected in young deers at the age of 0.5 years (52.5 was dominant among representatives of other phyla; their share ranged from 45.6% to 52.1%. The largest proportion of cellulolytic bacteria was detected in young deers at the age of 0.5 years (52.5%). Animals showed a tendency to decrease in the share of these bacteria with age. The smallest relative abundance of cellulolytic bacteria was detected in animals at the age of 9 years (44.7 was dominant among representatives of other phyla; their share ranged from 45.6% to 52.1%. The largest proportion of cellulolytic bacteria was detected in young deers at the age of 0.5 years (52.5%). Animals showed a tendency to decrease in the share of these bacteria with age. The smallest relative abundance of cellulolytic bacteria was detected in animals at the age of 9 years (44.7%). Bacteria of the genus Prevotella dominated among cellulolytic rumen bacteria. Bacteroides sp., Ruminococcus sp., Blautia sp., Clostridium sp., Butyrivibrio sp. and Paraprevotella sp. ranked next in relative abundance among rumen bacteria. Their share averaged from 3. ranked next in relative abundance among rumen bacteria. Their share averaged from 3% to 6. ranked next in relative abundance among rumen bacteria. Their share averaged from 3% to 6%. Our analysis showed the presence of two clusters uniting the microbial communities of the reindeer rumen into groups by the age characteristics. The first cluster included individuals under the age of 5 years, and the second group was older than 6 years. This is consistent with the data of biodiversity indices, which showed that bacterial diversity in the reindeer rumen increases with the age.

Copyright

© 2020, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Larisa Ilina
AU  - Valentina Filippova
AU  - Elena Yildirim
AU  - Kasim Laishev
PY  - 2020
DA  - 2020/01/29
TI  - Analysis of Diversity of Reindeer Rumen Bacteria Involved in the Cellulose Decomposition
BT  - Proceedings of the International Scientific Conference The Fifth Technological Order: Prospects for the Development and Modernization of the Russian Agro-Industrial Sector (TFTS 2019)
PB  - Atlantis Press
SP  - 205
EP  - 209
SN  - 2352-5398
UR  - https://doi.org/10.2991/assehr.k.200113.170
DO  - 10.2991/assehr.k.200113.170
ID  - Ilina2020
ER  -