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Can I read A Revised Estimate Of The Iron Use Efficiency Of Nitrogen Fixation, With Special Reference To The Marine Cyanobacterium Trichodesmium Spp. (cyanophyta) on EtoBox?
A Revised Estimate Of The Iron Use Efficiency Of Nitrogen Fixation, With Special Reference To The Marine Cyanobacterium Trichodesmium Spp. (cyanophyta) by Adam Kustka; Sergio Sañudo-Wilhelmy; Edward J. Carpenter; Douglas G. Capone; John A. Raven is a Earth and Planetary Sciences article available to read on EtoBox.
What is A Revised Estimate Of The Iron Use Efficiency Of Nitrogen Fixation, With Special Reference To The Marine Cyanobacterium Trichodesmium Spp. (cyanophyta) about?
Estimates of the iron use efficiency (IUE) for diazotrophic plant growth have been used to suggest iron limitation of marine N~2~ fixation. However, in the course of these inferences, neither the physiological complexity of these estimates nor the specific physiological parameters of marine diazotrophs were evaluated. Here, a semiempirical prediction of the IUE of diazotrophic growth for __Trichodesmium__ was computed from considerations of the Fe content and reaction rates of the nitrogenase complex and PSI:PSII ratios, as well as field measurements of Mehler activity, cellular Fe‐superoxide dismutase activity, and diel variability in C and N~2~ fixation. With a PSI:PSII ratio of 1 and 48% Mehler activity, the instantaneous IUE (0.33 mol C fixed·mol cellular Fe**^−^**^1^·s**^−^**^1^) was only 4‐fold lower than that calculated for a phytoplankter growing on reduced N. We computed a range of daily integrated IUE values from 2900 to 7700 mol C·mol Fe**^−^**^1^·d**^−^**^1^, accounting for the diel variability in C and N~2~ fixation as well as the uncertainties in cyanobacterial nitrogenase biochemistry and PSI:II ratios of field‐collected __Trichodesmium.__ The lowest observed Fe‐supe
Who reads A Revised Estimate Of The Iron Use Efficiency Of Nitrogen Fixation, With Special Reference To The Marine Cyanobacterium Trichodesmium Spp. (cyanophyta)?
It is typically read by researchers, students, and practitioners in Earth and Planetary Sciences.
- Author
- Adam Kustka; Sergio Sañudo-Wilhelmy; Edward J. Carpenter; Douglas G. Capone; John A. Raven
- Publisher
- John Wiley and Sons; Wiley (Blackwell Publishing); Blackwell Publishing Inc.; Wiley (ISSN 0022-3646)
- Published
- 2003
- Language
- EN
- Field
- Earth and Planetary Sciences (Physical Sciences)