Published Data Library (PDL)

AMT20 (JC053) microbial organic substrate uptake rate bioassays

Title

Ambient concentrations, microbial turnover rates and turnover times of methionine, leucine and organic phosphate measured on cruise AMT20 (JC053).

Author(s) Gomez-Pereira P. (1); Hartmann M. (1); Zubkov M.V. (1)

(1) National Oceanography Centre, Southampton

Subject biota, oceans
Abstract

This dataset consists of microbial uptake, turnover rates and ambient concentration measurements of organic substrates collected during the Atlantic Meridional Transect programme cruise 20 (AMT20, JC053) between 14th October and 21st November 2010. The cruise track between UK and Chile passed through both North and South Atlantic gyres. This dataset is a contribution to the AMT time-series of core oceanographic measurements. For the amino acids methionine and leucine a total of 54 experiments to determine microbial uptake, turnover rates and ambient concentration were carried out. For adenosine-tri-phosphate, as a marker for organic phosphate uptake, 23 measurements were conducted. Samples were incubated with different concentrations of 3H-labelled leucine, 35S-labelled methionine or 33P-labelled adenosine-tri-phosphate (organic phosphate) and subsamples fixed with 1% w/v paraformaldehyde at specific time points. Samples were then filtered on 0.2 µn;m polycarbonate filters to collect and measure the radiolabelled substrate within the cells using a liquid scintillation counter (TriCarb3100, PerkinElmer).

Temporal coverage 14 October 2010 - 21 November 2010
Spatial coverage Atlantic Ocean
File format Delimited
Language English
Discovery metadata record Link to the related European Directory of Marine Environmental Data (EDMED) record
Publisher British Oceanographic Data Centre - Natural Environment Research Council, UK
Publication date 16 April 2014
Digital Object Identifier (DOI) doi:10.5285/f7021d34-028e-70fc-e044-000b5de50f38
Short DOI doi:10/sc4
Citation text Gomez-Pereira P.; Hartmann M.; Zubkov M.V. (2014). Ambient concentrations, microbial turnover rates and turnover times of methionine, leucine and organic phosphate measured on cruise AMT20 (JC053). British Oceanographic Data Centre - Natural Environment Research Council, UK. doi:10/sc4.

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