First evidence of the presence and activity of archaeal C3 group members in an Atlantic intertidal mudflat

Abstract : The phylogenetic assignment of archaeal communities is constantly evolving, and the recent discovery of new phyla that grouped into superphyla has provided novel insights into archaeal ecology and evolution in ecosystems. In intertidal sediments, archaea are known to be involved in key functional processes such as organic matter turnover, but the ecological relevance of the rarest archaeal groups is poorly investigated, due partly to the lack of cultivated members. The high resolution of microbial diversity provided by high-throughput sequencing technologies now allows the rare biosphere to be described. In this work, we focused on the archaeal C3 group, showing that this phylum is not only present (at the DNA level) independently of sediment depth but also active (at the RNA level) in specific sediment niches depending on vertical physicochemical gradients. Moreover, we highlight the ambiguous phylogenetic affiliation of this group, indicating the need of further research to get new insights into the role of the C3 group.
Liste complète des métadonnées

Cited literature [8 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-01858404
Contributor : Hélène Agogué <>
Submitted on : Monday, August 20, 2018 - 4:23:08 PM
Last modification on : Thursday, March 21, 2019 - 2:32:05 PM

File

Lavergne,Hugonietal,Scientific...
Publisher files allowed on an open archive

Identifiers

Citation

Céline Lavergne, Mylène Hugoni, Christine Dupuy, Hélène Agogué. First evidence of the presence and activity of archaeal C3 group members in an Atlantic intertidal mudflat. Scientific Reports, Nature Publishing Group, 2018, 8 (1), pp.11790. ⟨10.1038/s41598-018-30222-1⟩. ⟨hal-01858404⟩

Share

Metrics

Record views

58

Files downloads

14