Process‐understanding of marine nitrogen fixation under global change
Diazotrophic cyanobacteria play an important role in the marine nitrogen cycle due to their ability to convert atmospheric N2 to bioavailable N species. With ongoing climate change, N2 fixers are subject to an array of perturbations in their environment. Several previous experiments suggested the ab...
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ftawi:oai:epic.awi.de:36659 2023-05-15T17:51:03+02:00 Process‐understanding of marine nitrogen fixation under global change Eichner, Meri 2014-07 application/pdf https://epic.awi.de/id/eprint/36659/ https://epic.awi.de/id/eprint/36659/2/ediss_finalpdf.pdf http://elib.suub.uni-bremen.de/edocs/00103849-1.pdf https://hdl.handle.net/10013/epic.44451 https://hdl.handle.net/10013/epic.44451.d002 unknown https://epic.awi.de/id/eprint/36659/2/ediss_finalpdf.pdf https://hdl.handle.net/10013/epic.44451.d002 Eichner, M. (2014) Process‐understanding of marine nitrogen fixation under global change , PhD thesis, Universität Bremen. hdl:10013/epic.44451 EPIC3140 p. Thesis notRev 2014 ftawi 2021-12-24T15:39:57Z Diazotrophic cyanobacteria play an important role in the marine nitrogen cycle due to their ability to convert atmospheric N2 to bioavailable N species. With ongoing climate change, N2 fixers are subject to an array of perturbations in their environment. Several previous experiments suggested the abundant N2 fixer Trichodesmium to respond sensitively to ocean acidification as well as the concurrent changes in other environmental factors. The aim of this thesis was to improve understanding of the underlying mechanisms of these responses and determine whether they can be generalized to other diazotrophs. Key processes in the CO2 response of Trichodesmium were shown to include a reallocation of energy between the carbon concentrating mechanisms and N2 fixation, as well as intracellular cycling of inorganic carbon. Comparison of pCO2 effects on functionally different N2 fixers, in turn, revealed high variability in responses between different groups and even species of diazotrophs. Thesis Ocean acidification Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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Diazotrophic cyanobacteria play an important role in the marine nitrogen cycle due to their ability to convert atmospheric N2 to bioavailable N species. With ongoing climate change, N2 fixers are subject to an array of perturbations in their environment. Several previous experiments suggested the abundant N2 fixer Trichodesmium to respond sensitively to ocean acidification as well as the concurrent changes in other environmental factors. The aim of this thesis was to improve understanding of the underlying mechanisms of these responses and determine whether they can be generalized to other diazotrophs. Key processes in the CO2 response of Trichodesmium were shown to include a reallocation of energy between the carbon concentrating mechanisms and N2 fixation, as well as intracellular cycling of inorganic carbon. Comparison of pCO2 effects on functionally different N2 fixers, in turn, revealed high variability in responses between different groups and even species of diazotrophs. |
format |
Thesis |
author |
Eichner, Meri |
spellingShingle |
Eichner, Meri Process‐understanding of marine nitrogen fixation under global change |
author_facet |
Eichner, Meri |
author_sort |
Eichner, Meri |
title |
Process‐understanding of marine nitrogen fixation under global change |
title_short |
Process‐understanding of marine nitrogen fixation under global change |
title_full |
Process‐understanding of marine nitrogen fixation under global change |
title_fullStr |
Process‐understanding of marine nitrogen fixation under global change |
title_full_unstemmed |
Process‐understanding of marine nitrogen fixation under global change |
title_sort |
process‐understanding of marine nitrogen fixation under global change |
publishDate |
2014 |
url |
https://epic.awi.de/id/eprint/36659/ https://epic.awi.de/id/eprint/36659/2/ediss_finalpdf.pdf http://elib.suub.uni-bremen.de/edocs/00103849-1.pdf https://hdl.handle.net/10013/epic.44451 https://hdl.handle.net/10013/epic.44451.d002 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
EPIC3140 p. |
op_relation |
https://epic.awi.de/id/eprint/36659/2/ediss_finalpdf.pdf https://hdl.handle.net/10013/epic.44451.d002 Eichner, M. (2014) Process‐understanding of marine nitrogen fixation under global change , PhD thesis, Universität Bremen. hdl:10013/epic.44451 |
_version_ |
1766158043320418304 |