The DOI matches its Crossref record; 34 of the 34 references it cites were found in a registry or an index.
Physiological constraints on the global distribution of Trichodesmium – effect of temperature on diazotrophy
Open accessAbstract
Abstract. The cyanobacterium Trichodesmium is an important link in the global nitrogen cycle due to its significant input of atmospheric nitrogen to the ocean. Attempts to incorporate Trichodesmium in ocean biogeochemical circulation models have, so far, relied on the observed correlation between temperature and Trichodesmium abundance. This correlation may result in part from a direct effect of temperature on Trichodesmium growth rates through the control of cellular biochemical processes, or indirectly through temperature influence on mixed layer depth, light and nutrient regimes. Here we present results indicating that the observed correlation of Trichodesmium with temperature in the field reflects primarily the direct physiological effects of temperature on diazotrophic growth of Trichodesmium. Trichodesmium IMS-101 (an isolate of Trichodesmium) could acclimate and grow at temperatures ranging from 20 to 34°C. Maximum growth rates (μmax=0.25 day–1) and maximum nitrogen fixation rates (0.13 mmol N mol POC−1 h–1) were measured within 24 to 30°C. Combining this empirical relationship with global warming scenarios derived from state-of-the-art climate models sets a physiological constraint on the future distribution of Trichodesmium that could significantly affect the future nitrogen input into oligotrophic waters by this diazotroph.
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Processes and patterns of oceanic nutrient limitation
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Marine ecosystems’ responses to climatic and anthropogenic forcings in the Mediterranean
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Metadata
- Authors
- Breitbarth, E., Oschlies, A., & LaRoche, J.
- Venue
- Biogeosciences
- Publisher
- Copernicus GmbH
- Published
- 2007-01-15
- Volume
- 4
- Issue
- 1
- Pages
- 53-61
- ISSN
- 1726-4170 (ISSN-L)
- 1726-4189
- OpenAlex
- W2108755430
- Cited by
- 295
- References
- 34
- FWCI
- 11.69
- Type
- journal article
- Language
- en
- Open access
- gold
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- Breitbarth, E., Oschlies, A., & LaRoche, J. (2007). Physiological constraints on the global distribution of Trichodesmium – effect of temperature on diazotrophy. Biogeosciences. https://doi.org/10.5194/bg-4-53-2007
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