Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/59925
Title: High Growth Potential of Long-Term Starved Deep Ocean Opportunistic Heterotrophic Bacteria
Authors: Sebastián Caumel, Marta 
Estrany, Margarita
Ruiz-Gonzalez, Clara
Forn, Irene
Sala, Maria Montserrat
Gasol, Josep M.
Marrase, Celia
UNESCO Clasification: 251001 Oceanografía biológica
Keywords: Newly Synthesized Proteins
Organic-Matter
Marine
Carbon
Sea, et al
Issue Date: 2019
Journal: Frontiers in Microbiology 
Abstract: Experiments with bacteria in culture have shown that they often display "feast and famine" strategies that allow them to respond with fast growth upon pulses in resource availability, and enter a growth-arrest state when resources are limiting. Although feast responses have been observed in natural communities upon enrichment, it is unknown whether this blooming ability is maintained after long periods of starvation, particularly in systems that are energy limited like the bathypelagic ocean. Here we combined bulk and single-cell activity measurements with 16S rRNA gene amplicon sequencing to explore the response of a bathypelagic community, that had been starved for 1.6 years, to a sudden organic carbon supply. We observed a dramatic change in activity within 30 h, with leucine incorporation rates increasing over two orders of magnitude and the number of translationally active cells (mostly Gammaproteobacteria) increasing 4-fold. The feast response was driven by a single operational taxonomic unit (OTU) affiliated with the Marinobacter genus, which had remained rare during 7 months of starvation. Our work suggests that bathypelagic communities harbor a seed bank of highly persistent and resourceful "feast and famine" strategists that might disproportionally contribute to carbon fluxes through fast responses to occasional pulses of organic matter.
URI: http://hdl.handle.net/10553/59925
ISSN: 1664-302X
DOI: 10.3389/fmicb.2019.00760
Source: Frontiers In Microbiology [ISSN 1664-302X], v. 10 (760)
Appears in Collections:Artículos
Thumbnail
PDF
Adobe PDF (2,51 MB)
Show full item record

SCOPUSTM   
Citations

28
checked on Nov 17, 2024

WEB OF SCIENCETM
Citations

29
checked on Nov 17, 2024

Page view(s)

117
checked on Apr 13, 2024

Download(s)

127
checked on Apr 13, 2024

Google ScholarTM

Check

Altmetric


Share



Export metadata



Items in accedaCRIS are protected by copyright, with all rights reserved, unless otherwise indicated.