Abstract
Nitrogen is essential for life as we know it. According to phylogenetic studies, all organisms capable of fixing nitrogen are prokaryotes, both bacteria and archaea, suggesting that nitrogen fixation and ammonium assimilation were metabolic features of the Last Universal Common Ancestor of all organisms. At present time the amount of biologically fixed nitrogen is around 2 × 1013g/year (Falkowski 1997), an amount much larger than the corresponding to the nitrogen fixed abiotically (between 2. 6 ×109 and 3 × 1011 g/year) (Navarro-González et al. 2001). The current amount of nitrogen fixed is much higher than it was on Earth before the Cambrian explosion, where the symbiotic associations with leguminous plants, the major nitrogen fixer currently, did not exist and nitrogen was fixed only by free-living organisms as cyanobacteria. It has been suggested (Navarro-González et al. 2001) that abiotic sources of nitrogen fixation during Early Earth times could have an important role triggering a selection pressure favoring the evolution of nitrogenase and an increase in the nitrogen fixation rate. In this study we present briefly a method to analyze the amount of fixed nitrogen, both biotic and abiotic, through Earth’s history.
| Original language | English |
|---|---|
| Title of host publication | Astrophysics and Space Science Proceedings |
| Publisher | Springer Netherlands |
| Pages | 23-31 |
| Number of pages | 9 |
| Volume | 35 |
| DOIs | |
| Publication status | Published - Jan 1 2013 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
- Computer Science Applications
- Spectroscopy
- Space and Planetary Science
- Nuclear and High Energy Physics
Cite this
A mathematic approach to nitrogen fixation through earth history. / Delgado-Bonal, Alfonso; Martin-Torres, Javier.
Astrophysics and Space Science Proceedings. Vol. 35 Springer Netherlands, 2013. p. 23-31.Research output: Chapter in Book/Report/Conference proceeding › Chapter
}
TY - CHAP
T1 - A mathematic approach to nitrogen fixation through earth history
AU - Delgado-Bonal, Alfonso
AU - Martin-Torres, Javier
PY - 2013/1/1
Y1 - 2013/1/1
N2 - Nitrogen is essential for life as we know it. According to phylogenetic studies, all organisms capable of fixing nitrogen are prokaryotes, both bacteria and archaea, suggesting that nitrogen fixation and ammonium assimilation were metabolic features of the Last Universal Common Ancestor of all organisms. At present time the amount of biologically fixed nitrogen is around 2 × 1013g/year (Falkowski 1997), an amount much larger than the corresponding to the nitrogen fixed abiotically (between 2. 6 ×109 and 3 × 1011 g/year) (Navarro-González et al. 2001). The current amount of nitrogen fixed is much higher than it was on Earth before the Cambrian explosion, where the symbiotic associations with leguminous plants, the major nitrogen fixer currently, did not exist and nitrogen was fixed only by free-living organisms as cyanobacteria. It has been suggested (Navarro-González et al. 2001) that abiotic sources of nitrogen fixation during Early Earth times could have an important role triggering a selection pressure favoring the evolution of nitrogenase and an increase in the nitrogen fixation rate. In this study we present briefly a method to analyze the amount of fixed nitrogen, both biotic and abiotic, through Earth’s history.
AB - Nitrogen is essential for life as we know it. According to phylogenetic studies, all organisms capable of fixing nitrogen are prokaryotes, both bacteria and archaea, suggesting that nitrogen fixation and ammonium assimilation were metabolic features of the Last Universal Common Ancestor of all organisms. At present time the amount of biologically fixed nitrogen is around 2 × 1013g/year (Falkowski 1997), an amount much larger than the corresponding to the nitrogen fixed abiotically (between 2. 6 ×109 and 3 × 1011 g/year) (Navarro-González et al. 2001). The current amount of nitrogen fixed is much higher than it was on Earth before the Cambrian explosion, where the symbiotic associations with leguminous plants, the major nitrogen fixer currently, did not exist and nitrogen was fixed only by free-living organisms as cyanobacteria. It has been suggested (Navarro-González et al. 2001) that abiotic sources of nitrogen fixation during Early Earth times could have an important role triggering a selection pressure favoring the evolution of nitrogenase and an increase in the nitrogen fixation rate. In this study we present briefly a method to analyze the amount of fixed nitrogen, both biotic and abiotic, through Earth’s history.
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U2 - 10.1007/978-1-4614-5191-4_3
DO - 10.1007/978-1-4614-5191-4_3
M3 - Chapter
AN - SCOPUS:85032452464
VL - 35
SP - 23
EP - 31
BT - Astrophysics and Space Science Proceedings
PB - Springer Netherlands
ER -