Prokaryotic extracellular enzymatic activity in relation to biomass production and respiration in the meso‐ and bathypelagic waters of the (sub)tropical Atlantic
Summary Prokaryotic extracellular enzymatic activity, abundance, heterotrophic production and respiration were determined in the meso‐ and bathypelagic (sub)tropical North Atlantic. While prokaryotic heterotrophic production (PHP) decreased from the lower euphotic layer to the bathypelagic waters by...
Published in: | Environmental Microbiology |
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Online Access: | http://dx.doi.org/10.1111/j.1462-2920.2009.01922.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1462-2920.2009.01922.x http://onlinelibrary.wiley.com/wol1/doi/10.1111/j.1462-2920.2009.01922.x/fullpdf |
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crwiley:10.1111/j.1462-2920.2009.01922.x 2024-06-23T07:55:08+00:00 Prokaryotic extracellular enzymatic activity in relation to biomass production and respiration in the meso‐ and bathypelagic waters of the (sub)tropical Atlantic Baltar, Federico Arístegui, Javier Sintes, Eva Van Aken, Hendrik M. Gasol, Josep M. Herndl, Gerhard J. 2009 http://dx.doi.org/10.1111/j.1462-2920.2009.01922.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1462-2920.2009.01922.x http://onlinelibrary.wiley.com/wol1/doi/10.1111/j.1462-2920.2009.01922.x/fullpdf en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Environmental Microbiology volume 11, issue 8, page 1998-2014 ISSN 1462-2912 1462-2920 journal-article 2009 crwiley https://doi.org/10.1111/j.1462-2920.2009.01922.x 2024-05-31T08:11:07Z Summary Prokaryotic extracellular enzymatic activity, abundance, heterotrophic production and respiration were determined in the meso‐ and bathypelagic (sub)tropical North Atlantic. While prokaryotic heterotrophic production (PHP) decreased from the lower euphotic layer to the bathypelagic waters by two orders of magnitude, prokaryotic abundance and cell‐specific PHP decreased only by one order of magnitude. In contrast to cell‐specific PHP, cell‐specific extracellular enzymatic activity (alpha‐ and beta‐glucosidase, leucine aminopeptidase, alkaline phosphatase) increased with depth as did cell‐specific respiration rates. Cell‐specific alkaline phosphatase activity increased from the intermediate water masses to the deep waters up to fivefold. Phosphate concentrations, however, varied only by a factor of two between the different water masses, indicating that phosphatase activity is not related to phosphate availability in the deep waters. Generally, cell‐specific extracellular enzymatic activities were inversely related to cell‐specific prokaryotic leucine incorporation. Thus, it is apparent that the utilization of deep ocean organic matter is linked to higher cell‐specific extracellular enzymatic activity and respiration and lower cell‐specific PHP than in surface waters. Article in Journal/Newspaper North Atlantic Wiley Online Library Environmental Microbiology 11 8 1998 2014 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Summary Prokaryotic extracellular enzymatic activity, abundance, heterotrophic production and respiration were determined in the meso‐ and bathypelagic (sub)tropical North Atlantic. While prokaryotic heterotrophic production (PHP) decreased from the lower euphotic layer to the bathypelagic waters by two orders of magnitude, prokaryotic abundance and cell‐specific PHP decreased only by one order of magnitude. In contrast to cell‐specific PHP, cell‐specific extracellular enzymatic activity (alpha‐ and beta‐glucosidase, leucine aminopeptidase, alkaline phosphatase) increased with depth as did cell‐specific respiration rates. Cell‐specific alkaline phosphatase activity increased from the intermediate water masses to the deep waters up to fivefold. Phosphate concentrations, however, varied only by a factor of two between the different water masses, indicating that phosphatase activity is not related to phosphate availability in the deep waters. Generally, cell‐specific extracellular enzymatic activities were inversely related to cell‐specific prokaryotic leucine incorporation. Thus, it is apparent that the utilization of deep ocean organic matter is linked to higher cell‐specific extracellular enzymatic activity and respiration and lower cell‐specific PHP than in surface waters. |
format |
Article in Journal/Newspaper |
author |
Baltar, Federico Arístegui, Javier Sintes, Eva Van Aken, Hendrik M. Gasol, Josep M. Herndl, Gerhard J. |
spellingShingle |
Baltar, Federico Arístegui, Javier Sintes, Eva Van Aken, Hendrik M. Gasol, Josep M. Herndl, Gerhard J. Prokaryotic extracellular enzymatic activity in relation to biomass production and respiration in the meso‐ and bathypelagic waters of the (sub)tropical Atlantic |
author_facet |
Baltar, Federico Arístegui, Javier Sintes, Eva Van Aken, Hendrik M. Gasol, Josep M. Herndl, Gerhard J. |
author_sort |
Baltar, Federico |
title |
Prokaryotic extracellular enzymatic activity in relation to biomass production and respiration in the meso‐ and bathypelagic waters of the (sub)tropical Atlantic |
title_short |
Prokaryotic extracellular enzymatic activity in relation to biomass production and respiration in the meso‐ and bathypelagic waters of the (sub)tropical Atlantic |
title_full |
Prokaryotic extracellular enzymatic activity in relation to biomass production and respiration in the meso‐ and bathypelagic waters of the (sub)tropical Atlantic |
title_fullStr |
Prokaryotic extracellular enzymatic activity in relation to biomass production and respiration in the meso‐ and bathypelagic waters of the (sub)tropical Atlantic |
title_full_unstemmed |
Prokaryotic extracellular enzymatic activity in relation to biomass production and respiration in the meso‐ and bathypelagic waters of the (sub)tropical Atlantic |
title_sort |
prokaryotic extracellular enzymatic activity in relation to biomass production and respiration in the meso‐ and bathypelagic waters of the (sub)tropical atlantic |
publisher |
Wiley |
publishDate |
2009 |
url |
http://dx.doi.org/10.1111/j.1462-2920.2009.01922.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1462-2920.2009.01922.x http://onlinelibrary.wiley.com/wol1/doi/10.1111/j.1462-2920.2009.01922.x/fullpdf |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Environmental Microbiology volume 11, issue 8, page 1998-2014 ISSN 1462-2912 1462-2920 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1462-2920.2009.01922.x |
container_title |
Environmental Microbiology |
container_volume |
11 |
container_issue |
8 |
container_start_page |
1998 |
op_container_end_page |
2014 |
_version_ |
1802647582980177920 |