10.5061/DRYAD.Q5903
Taib, Najwa
Université Blaise Pascal
Hugoni, Mylène
Université Blaise Pascal
Debroas, Didier
Université Blaise Pascal
Domaizon, Isabelle
UMR 42 Centre Alpin de Recherche sur les Réseaux Trophiques et
Ecosystèmes Limniques
Jouan-Dufournel, Isabelle
Université Blaise Pascal
Bronner, Gisèle
Université Blaise Pascal
Salter, Ian
UMR 7621,
Agogué, Hélène
University of La Rochelle
Mary, Isabelle
Université Blaise Pascal
Galand, Pierre E.
UMR 7621,
Data from: Structure of the rare archaeal biosphere and seasonal dynamics
of active ecotypes in surface coastal waters
Dryad
dataset
2013
Activity; Ecotypes; Long-term dynamic; Rare Biosphere
Archaea
Ecotypes
Rare Biosphere
Long-term dynamic
2013-04-04T16:46:55Z
2013-04-04T16:46:55Z
en
https://doi.org/10.1073/pnas.1216863110
818835352 bytes
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Marine Archaea are important players among microbial plankton and
significantly contribute to biogeochemical cycles, but details regarding
their community structure and long-term seasonal activity and dynamics
remain largely unexplored. In this study, we monitored the inter-annual
archaeal community composition of abundant and rare biospheres in
northwestern Mediterranean Sea surface waters by pyrosequencing 16S rDNA
and rRNA. A detailed analysis of the rare biosphere structure showed that
the rare archaeal community was composed of three distinct fractions. One
contained the rare Archaea that became abundant at different times within
the same ecosystem; these cells were typically not dormant, and we
hypothesize that they represent a local seed bank that is specific and
essential for ecosystem functioning through cycling seasonal environmental
conditions. The second fraction contained cells that were uncommon in
public databases and not active, consisting of aliens to the studied
ecosystem and representing a non-local seed bank of potential colonizers.
The third fraction contained Archaea that were always rare but actively
growing; their affiliation and seasonal dynamics were similar to the
abundant microbes and could not be considered a seed bank. We also showed
that the major archaeal groups, Thaumarchaeota Marine Group-I (MGI) and
Euryarchaeota Group-II.B (MGII.B) in winter and Euryarchaeota Group-II.A
(MGII.A) in summer, contained different ecotypes with varying activities.
Our findings suggest that archaeal diversity could be associated with
distinct metabolisms or life strategies, and that the rare archaeal
biosphere is composed of a complex assortment of organisms with distinct
histories that affect their potential for growth.
archaea_77samples_fastaHugoniB.fnaarchaea_77samples_qualityHugoniB.qualarchaea_3samples_fastaHugoniB.fnaarchaea_3samples_qualityHugoniB.qualarchaea_3samples_barcodesHugoniB.txtarchaea_77samples_barcodesHugoniB.txt