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Reconciling the incompatible: N2fixation And O2
Abstract
summary: N 2 fixation is an extremely O 2‐sensitive process. N 2‐fixing bacteria (diazotrophys) have therefore evolved a variety of strategies by which they maintain an active nitrogenase in the presence of atmospheric O 2 and, in some cases, of O 2 generated photosynthetically. In this review, the effects of O 2 on nitrogenase activity and synthesis are described, as are the mechanisms by which diazotrophs limit O 2 damage to nitrogenase. These mechanisms are classified as behavioural strategies, physical barriers or physiological and biochemical strategies. Individual diazotrophs frequently empoly a combination of these. In addition, the particular problems faced by the O 2‐evolving cyanobacteria are discussed. CONTENTSSummary571I.Introduction571II.N 2 fixation571III.O 2 toxicity574IV.Interrelations between O 2 and N 2 fixation577V.Strategies for limiting O 2 damage to nitrogenase581Acknowledgements601References602
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Cites
Generic Assignments, Strain Histories and Properties of Pure Cultures of Cyanobacteria
Rippka, R., Stanier, R. Y., Deruelles, J., Herdman, M., & Waterbury, J. B. (1979) · Microbiology · doi:10.1099/00221287-111-1-1 · Cited by 7,606
Cited by
Constraints to Commercialization of Algal Fuels
Chisti, Y. (2013) · Journal of Biotechnology · doi:10.1016/j.jbiotec.2013.07.020 · Cited by 719
Nitrogen fixation and photosynthetic oxygen evolution in cyanobacteria
Berman-Frank, I., Lundgren, P., & Falkowski, P. (2003) · Research in Microbiology · doi:10.1016/s0923-2508(03)00029-9 · Cited by 522
Physiological ecology of cyanobacteria in microbial mats and other communities
STAL, L. J. (1995) · New Phytologist · doi:10.1111/j.1469-8137.1995.tb03051.x · Cited by 425
Infection and Colonization of Sugar Cane and Other Graminaceous Plants by Endophytic Diazotrophs
James, E. K. (1998) · Critical Reviews in Plant Sciences · doi:10.1016/s0735-2689(98)00357-8 · Cited by 375
Eigenbrode, J. L., Freeman, K. H., & Summons, R. E. (2008) · Earth and Planetary Science Letters · doi:10.1016/j.epsl.2008.06.037 · Cited by 150
Metadata
- Authors
- Gallon, J. R.
- Venue
- New Phytologist
- Publisher
- Wiley
- Published
- 1992-12
- Volume
- 122
- Issue
- 4
- Pages
- 571-609
- ISSN
- 0028-646X (ISSN-L)
- 1469-8137
- OpenAlex
- W2099183580
- Cited by
- 380
- References
- 1
- FWCI
- 18.78
- Type
- journal article
- Language
- en
- Open access
- closed
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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