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On the Gaseous Exchange of Ammonia between Leaves and the Environment: Determination of the Ammonia Compensation Point
Open accessAbstract
Whole shoots of Phaseolus vulgaris L. and other species were exposed to a range of partial pressures of gaseous ammonia in air and the resulting fluxes were measured. Net uptake is linear with partial pressure in the range 5 to 50 nanobars and is zero at a finite partial pressure, termed the ammonia compensation point. Below the compensation point, ammonia (or possibly other volatile amines) is evolved by the leaves. The compensation points in several species are near the low partial pressures found in unpolluted air and approximate to the K(m) of glutamine synthetase in vitro. In P. vulgaris L., the compensation point increases with temperature.
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Citations
Cited by
Enhancing Nitrogen Use Efficiency in Crop Plants
Fageria, N. K., & Baligar, V. C. (2005) · Advances in Agronomy · doi:10.1016/s0065-2113(05)88004-6 · Cited by 1,436
The Early Faint Sun Paradox: Organic Shielding of Ultraviolet-Labile Greenhouse Gases
Sagan, C., & Chyba, C. (1997) · Science · doi:10.1126/science.276.5316.1217 · Cited by 396
The deposition of atmospheric ammonia and its effects on plants
PEARSON, J., & STEWART, G. R. (1993) · New Phytologist · doi:10.1111/j.1469-8137.1993.tb03882.x · Cited by 396
The Exchange of Ammonia Between the Atmosphere and Plant Communities
Sutton, M. A., Pitcairn, C. E. R., & Fowler, D. (1993) · Advances in Ecological Research · doi:10.1016/s0065-2504(08)60045-8 · Cited by 259
Metadata
- Authors
- Farquhar, G. D., Firth, P. M., Wetselaar, R., & Weir, B.
- Venue
- Plant Physiology
- Publisher
- Oxford University Press (OUP)
- Published
- 1980-10-01
- Volume
- 66
- Issue
- 4
- Pages
- 710-714
- ISSN
- 0032-0889 (ISSN-L)
- 1532-2548
- OpenAlex
- W2042672979
- Cited by
- 481
- References
- 0
- FWCI
- 14.90
- Type
- journal article
- Language
- en
- Open access
- bronze
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- CoChat. (2026). Citation check: On the Gaseous Exchange of Ammonia between Leaves and the Environment: Determination of the Ammonia Compensation Point. https://app.cochat.ai/papers/10.1104/pp.66.4.710
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- Farquhar, G. D., Firth, P. M., Wetselaar, R., & Weir, B. (1980). On the Gaseous Exchange of Ammonia between Leaves and the Environment: Determination of the Ammonia Compensation Point. Plant Physiology. https://doi.org/10.1104/pp.66.4.710
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
