Dipicolinic acid concentration in sediment samples


Marine sediments host an unexpectedly large microbial biosphere, suggesting unique microbial mechanisms for surviving burial and slow metabolic turnover. Although dormancy is generally considered an important survival strategy, its specific role in subsurface sediments remains unclear. We quantified dormant bacterial endospores in 331 marine sediment samples from diverse depositional types and geographical origins. The abundance of endospores relative to vegetative cells increased with burial depth and endospores became dominant below 25 m, with an estimated population of 2.5 × 1028 to 1.9 × 1029 endospores in the uppermost kilometer of sediment and a corresponding biomass carbon of 4.6 to 35 Pg surpassing that of vegetative cells. Our data further identify distinct endospore subgroups with divergent resistance to burial and aging. Endospores may shape the deep biosphere by providing a core population for colonization of new habitats and/or through low-frequency germination to sustain slow growth in this environment.

Supplement to: Wörmer, Lars; Hoshino, Tatsuhiko; Bowles, Marshall W; Viehweger, Bernhard; Adhikari, Rishi Ram; Xiao, Nan; Uramoto, Goichiro; Könneke, Martin; Lazar, Cassandre Sara; Morono, Yuki; Inagaki, Fumio; Hinrichs, Kai-Uwe (2019): Microbial dormancy in the marine subsurface: Global endospore abundance and response to burial. Science Advances, 5(2), eaav1024

DOI https://doi.org/10.1594/PANGAEA.896621
Related Identifier IsSupplementTo https://doi.org/10.1126/sciadv.aav1024
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.896621
Creator Wörmer, Lars ORCID logo; Hoshino, Tatsuhiko; Bowles, Marshall W ORCID logo; Viehweger, Bernhard; Adhikari, Rishi Ram ORCID logo; Xiao, Nan; Uramoto, Goichiro; Könneke, Martin (ORCID: 0000-0001-6770-414X); Lazar, Cassandre Sara ORCID logo; Morono, Yuki ORCID logo; Inagaki, Fumio ORCID logo; Hinrichs, Kai-Uwe ORCID logo
Publisher PANGAEA
Publication Year 2018
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Resource Type Supplementary Dataset; Dataset
Format text/tab-separated-values
Size 551 data points
Discipline Earth System Research
Spatial Coverage (-165.644W, -45.964S, 142.202E, 58.622N); South Pacific Ocean; Juan de Fuca Ridge, North Pacific Ocean; Sea of Japan/East Sea; Baltic Sea, Lille Belt; Baltic Sea, Kattegat; Baltic Sea, Landsort Deep; Baltic Sea, Bornholm Basin; Bengal Fan; Western Mediterranean Sea
Temporal Coverage Begin 2002-02-19T19:55:00Z
Temporal Coverage End 2013-10-31T12:45:00Z