Details
| Original language | English |
|---|---|
| Title of host publication | Proceedings |
| Subtitle of host publication | 2012 IEEE 4th International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications, PMA 2012 |
| Pages | 93-95 |
| Number of pages | 3 |
| Publication status | Published - Oct 2012 |
| Event | 2012 IEEE 4th International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications, PMA 2012 - Shanghai, China Duration: 31 Oct 2012 → 3 Nov 2012 |
Publication series
| Name | Proceedings - 2012 IEEE 4th International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications, PMA 2012 |
|---|
Abstract
Photosynthesis is limited by CO2 if chloroplastic CO2 concentration (Cc) is lower than the intersection point (C ctr) in the Farquhar-von Caemmerer-Berry (FvCB) model. This range is defined as light-saturated conditions. If Cc > Cctr, photosynthesis is limited mainly by light (non-light-saturated conditions). Therefore, the relationship between Cc and Cctr can reveal whether photosynthesis is limited by light or CO2. In this work, a process to identify the photosynthetic limitation was illustrated based on the relationship between Cc and Cctr. We described C ctr as a function of light and biochemical parameters (V cmax) in the FvCB model and simulated the Cctr-light response with different sets of FvCB parameters. Results of simulations indicated that photosynthesis is limited by light when Vcmax is above 120 (μmol CO2 m-2s-1), and a decrease of Vcmax increases the limitations from CO2 diffusion pathways. We show data that photosynthesis of young cucumber leaves (10-14 days) was limited by light, and limitation caused by CO2 started on day 14 after leaf appearance.
Keywords
- FvCB model, light saturation point, limitation of photosynthesis
ASJC Scopus subject areas
- Mathematics(all)
- Modelling and Simulation
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Proceedings: 2012 IEEE 4th International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications, PMA 2012. 2012. p. 93-95 6524818 (Proceedings - 2012 IEEE 4th International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications, PMA 2012).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Determining photosynthetic limitations under saturated and non-saturated light conditions
AU - Chen, Tsu Wei
AU - Stutzel, Hartmut
AU - Kahlen, Katrin
PY - 2012/10
Y1 - 2012/10
N2 - Photosynthesis is limited by CO2 if chloroplastic CO2 concentration (Cc) is lower than the intersection point (C ctr) in the Farquhar-von Caemmerer-Berry (FvCB) model. This range is defined as light-saturated conditions. If Cc > Cctr, photosynthesis is limited mainly by light (non-light-saturated conditions). Therefore, the relationship between Cc and Cctr can reveal whether photosynthesis is limited by light or CO2. In this work, a process to identify the photosynthetic limitation was illustrated based on the relationship between Cc and Cctr. We described C ctr as a function of light and biochemical parameters (V cmax) in the FvCB model and simulated the Cctr-light response with different sets of FvCB parameters. Results of simulations indicated that photosynthesis is limited by light when Vcmax is above 120 (μmol CO2 m-2s-1), and a decrease of Vcmax increases the limitations from CO2 diffusion pathways. We show data that photosynthesis of young cucumber leaves (10-14 days) was limited by light, and limitation caused by CO2 started on day 14 after leaf appearance.
AB - Photosynthesis is limited by CO2 if chloroplastic CO2 concentration (Cc) is lower than the intersection point (C ctr) in the Farquhar-von Caemmerer-Berry (FvCB) model. This range is defined as light-saturated conditions. If Cc > Cctr, photosynthesis is limited mainly by light (non-light-saturated conditions). Therefore, the relationship between Cc and Cctr can reveal whether photosynthesis is limited by light or CO2. In this work, a process to identify the photosynthetic limitation was illustrated based on the relationship between Cc and Cctr. We described C ctr as a function of light and biochemical parameters (V cmax) in the FvCB model and simulated the Cctr-light response with different sets of FvCB parameters. Results of simulations indicated that photosynthesis is limited by light when Vcmax is above 120 (μmol CO2 m-2s-1), and a decrease of Vcmax increases the limitations from CO2 diffusion pathways. We show data that photosynthesis of young cucumber leaves (10-14 days) was limited by light, and limitation caused by CO2 started on day 14 after leaf appearance.
KW - FvCB model
KW - light saturation point
KW - limitation of photosynthesis
UR - http://www.scopus.com/inward/record.url?scp=84879642852&partnerID=8YFLogxK
U2 - 10.1109/PMA.2012.6524818
DO - 10.1109/PMA.2012.6524818
M3 - Conference contribution
AN - SCOPUS:84879642852
SN - 9781467300681
T3 - Proceedings - 2012 IEEE 4th International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications, PMA 2012
SP - 93
EP - 95
BT - Proceedings
T2 - 2012 IEEE 4th International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications, PMA 2012
Y2 - 31 October 2012 through 3 November 2012
ER -