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Upper ocean oxygenation, evolution of RuBisCO and the Phanerozoic succession of phytoplankton

Abstract:

Evidence is compiled to demonstrate a redox scale within Earth's photosynthesisers that correlates the specificity of their RuBisCO with organismal metabolic tolerance to anoxia, and ecological selection by dissolved O2/CO2 and nutrients. The Form 1B RuBisCO found in the chlorophyte green algae, has a poor selectivity between the two dissolved substrates, O2 and CO2, at the active site. This enzyme appears adapted to lower O2/CO2 ratios, or more “anoxic” conditions and therefore requires addi...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1016/j.freeradbiomed.2019.05.006

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Earth Sciences
Oxford college:
Wolfson College
Role:
Author
ORCID:
0000-0002-6095-8419
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Institution:
University of Oxford
Division:
MPLS Division
Department:
Earth Sciences
Role:
Author
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Name:
European Commission
Grant:
SP2-GA-2008-200915
Publisher:
Elsevier
Journal:
Free Radical Biology and Medicine More from this journal
Volume:
140
Issue:
20 August 2019
Pages:
295-304
Publication date:
2019-05-07
Acceptance date:
2019-05-02
DOI:
ISSN:
0891-5849
Language:
English
Pubs id:
pubs:998137
UUID:
uuid:a6e036b4-135a-4aa9-b37a-e3ff1fdd2c55
Local pid:
pubs:998137
Source identifiers:
998137
Deposit date:
2019-05-14

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