Archaea dominate oxic subseafloor communities over multimillion-year time scales
Archaea dominate oxic subseafloor communities over multimillion-year time scales
Date
2019-06-19
Authors
Vuillemin, Aurèle
Wankel, Scott D.
Coskun, Ömer K.
Magritsch, Tobias
Vargas, Sergio
Estes, Emily R.
Spivack, Arthur J.
Smith, David C.
Pockalny, Robert
Murray, Richard W.
D'Hondt, Steven
Orsi, William D.
Wankel, Scott D.
Coskun, Ömer K.
Magritsch, Tobias
Vargas, Sergio
Estes, Emily R.
Spivack, Arthur J.
Smith, David C.
Pockalny, Robert
Murray, Richard W.
D'Hondt, Steven
Orsi, William D.
Linked Authors
Person
Person
Person
Person
Person
Alternative Title
Citable URI
As Published
Date Created
Location
DOI
10.1126/sciadv.aaw4108
Related Materials
Replaces
Replaced By
Keywords
Abstract
Ammonia-oxidizing archaea (AOA) dominate microbial communities throughout oxic subseafloor sediment deposited over millions of years in the North Atlantic Ocean. Rates of nitrification correlated with the abundance of these dominant AOA populations, whose metabolism is characterized by ammonia oxidation, mixotrophic utilization of organic nitrogen, deamination, and the energetically efficient chemolithoautotrophic hydroxypropionate/hydroxybutyrate carbon fixation cycle. These AOA thus have the potential to couple mixotrophic and chemolithoautotrophic metabolism via mixotrophic deamination of organic nitrogen, followed by oxidation of the regenerated ammonia for additional energy to fuel carbon fixation. This metabolic feature likely reduces energy loss and improves AOA fitness under energy-starved, oxic conditions, thereby allowing them to outcompete other taxa for millions of years.
Description
© The Author(s), 2019. This article is distributed under the terms of the Creative Commons Attribution NonCommercial
License 4.0 (CC BY-NC).. The definitive version was published in Vuillemin, A., Wankel, S. D., Coskun, Ö. K., Magritsch, T., Vargas, S., Estes, E. R., Spivack, A. J., Smith, D. C., Pockalny, R., Murray, R. W., D'Hondt, S., & Orsi, W. D. Archaea dominate oxic subseafloor communities over multimillion-year time scales. Science Advances, 5(6), (2019): eaaw4108, doi: 10.1126/sciadv.aaw4108.
Embargo Date
Citation
Vuillemin, A., Wankel, S. D., Coskun, Ö. K., Magritsch, T., Vargas, S., Estes, E. R., Spivack, A. J., Smith, D. C., Pockalny, R., Murray, R. W., D'Hondt, S., & Orsi, W. D. (2019). Archaea dominate oxic subseafloor communities over multimillion-year time scales. Science Advances, 5(6), eaaw4108.