Biogeosciences
Biogeosciences
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Articles | Volume 21, issue 22
Articles | Volume 21, issue 22
https://doi.org/10.5194/bg-21-5185-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-21-5185-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 21, issue 22
Research article
 | 
21 Nov 2024
Research article |  | 21 Nov 2024

Assessing root–soil interactions in wetland plants: root exudation and radial oxygen loss

Katherine A. Haviland and Genevieve L. Noyce

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Cited articles

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Armstrong, J. and Armstrong, W.: Rice: Sulfide-induced Barriers to Root Radial Oxygen Loss, Fe2+ and Water Uptake, and Lateral Root Emergence, Ann. Bot.-London, 96, 625–638, https://doi.org/10.1093/aob/mci215, 2005. 
Armstrong, W. and Drew, M. C.: Root growth and metabolism under oxygen deficiency. in: Plant roots, CRC Press, 1139–1187, https://doi.org/10.1201/9780203909423.ch42, 2002. 
Aulakh, M. S., Wassmann, R., Bueno, C., Kreuzwieser, J., and Rennenberg, H.: Characterization of Root Exudates at Different Growth Stages of Ten Rice (Oryza sativa L.) Cultivars, Plant. Biol., 3, 139–148, https://doi.org/10.1055/s-2001-12905, 2001. 
Bethke, C. M., Sanford, R. A., Kirk, M. F., Jin, Q., and Flynn, T. M.: The thermodynamic ladder in geomicrobiology, Am. J. Sci., 311, 183 pp., https://doi.org/10.2475/03.2011.01, 2011. 
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Plant roots release both oxygen and carbon to the surrounding soil. While oxygen leads to less production of methane (a greenhouse gas), carbon often has the opposite effect. We investigated these processes in two plant species, S. patens and S. americanus. We found that S. patens roots produce more carbon and less oxygen than S. americanus. Additionally, the S. patens pool of root-associated carbon compounds was more dominated by compound types known to lead to higher methane production.
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