Skip Navigation



AOBPreview published online on September 8, 2004
Annals of Botany, doi:10.1093/aob/mch189
© 2004 by Annals of Botany Company
This Article
Right arrow FREE Full Text (PDF) Freely available
Right arrow All Versions of this Article:
94/5/647    most recent
mch189v1
Right arrow E-letters: Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when E-letters are posted
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by GONZALEZ-MELER, M. A.
Right arrow Articles by TRUEMAN, R. J.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by GONZALEZ-MELER, M. A.
Right arrow Articles by TRUEMAN, R. J.
Agricola
Right arrow Articles by GONZALEZ-MELER, M. A.
Right arrow Articles by TRUEMAN, R. J.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Received June 2, 2004
Revised June 14, 2004
Accepted July 6, 2004

Invited Review

Plant Respiration and Elevated Atmospheric CO2 Concentration: Cellular Responses and Global Significance

MIQUEL A. GONZALEZ-MELER 1*, LINA TANEVA 1, and REBECCA J. TRUEMAN 1

1 Department of Biological Sciences, University of Illinois at Chicago, 845 West Taylor St, Chicago, IL 60607, USA

* To whom correspondence should be addressed. E-mail: mmeler{at}uic.edu.


  Abstract

• Background Elevated levels of atmospheric [CO2] are likely to enhance photosynthesis and plant growth, which, in turn, should result in increased specific and whole-plant respiration rates. However, a large body of literature has shown that specific respiration rates of plant tissues are often reduced when plants are exposed to, or grown at, high [CO2] due to direct effects on enzymes and indirect effects derived from changes in the plant's chemical composition.

• Scope Although measurement artefacts may have affected some of the previously reported effects of CO2 on respiration rates, the direction and magnitude for the effects of elevated [CO2] on plant respiration may largely depend on the vertical scale (from enzymes to ecosystems) at which measurements are taken. In this review, the effects of elevated [CO2] from cells to ecosystems are presented within the context of the enzymatic and physiological controls of plant respiration, the role(s) of non-phosphorylating pathways, and possible effects associated with plant size.

• Conclusions Contrary to what was previously thought, specific respiration rates are generally not reduced when plants are grown at elevated [CO2]. However, whole ecosystem studies show that canopy respiration does not increase proportionally to increases in biomass in response to elevated [CO2], although a larger proportion of respiration takes place in the root system. Fundamental information is still lacking on how respiration and the processes supported by it are physiologically controlled, thereby preventing sound interpretations of what seem to be species-specific responses of respiration to elevated [CO2]. Therefore the role of plant respiration in augmenting the sink capacity of terrestrial ecosystems is still uncertain.

Keywords: Respiration, elevated CO2, cellular processes, ecosystem respiration, oxidation.
Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 ANN BOT (LOND)Home page
S. Gutjahr and L. Lapointe
Carbon Dioxide Enrichment Does Not Reduce Leaf Longevity or Alter Accumulation of Carbon Reserves in the Woodland Spring Ephemeral Erythronium americanum
Ann. Bot., August 28, 2008; (2008) mcn161v1.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
N. Gomez-Casanovas, E. Blanc-Betes, M. A. Gonzalez-Meler, and J. Azcon-Bieto
Changes in Respiratory Mitochondrial Machinery and Cytochrome and Alternative Pathway Activities in Response to Energy Demand Underlie the Acclimation of Respiration to Elevated CO2 in the Invasive Opuntia ficus-indica
Plant Physiology, September 1, 2007; 145(1): 49 - 61.
[Abstract] [Full Text] [PDF]

Home page
 ScienceHome page
J. Heath, E. Ayres, M. Possell, R. D. Bardgett, H. I. J. Black, H. Grant, P. Ineson, and G. Kerstiens
Rising Atmospheric CO2 Reduces Sequestration of Root-Derived Soil Carbon
Science, September 9, 2005; 309(5741): 1711 - 1713.
[Abstract] [Full Text] [PDF]

Home page
 ANN BOT (LOND)Home page
J. A. BUNCE
Response of Respiration of Soybean Leaves Grown at Ambient and Elevated Carbon Dioxide Concentrations to Day-to-day Variation in Light and Temperature under Field Conditions
Ann. Bot., May 1, 2005; 95(6): 1059 - 1066.
[Abstract] [Full Text] [PDF]


Disclaimer:
Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.