Details
| Original language | English |
|---|---|
| Article number | e3556 |
| Journal | Journal of Experimental Botany |
| Volume | 10 |
| Issue number | 6 |
| Publication status | Published - 20 Mar 2020 |
Abstract
Acclimation of leaf traits to fluctuating environments is a key mechanism to maximize fitness. One of the most important strategies in acclimation to changing light is to maintain efficient utilization of nitrogen in the photosynthetic apparatus by continuous modifications of between-leaf distribution along the canopy depth and within-leaf partitioning between photosynthetic functions according to local light availability. Between-leaf nitrogen distribution has been intensively studied over the last three decades, where proportional coordination between nitrogen concentration and light gradient was considered optimal in terms of maximizing canopy photosynthesis, without taking other canopy structural and physiological factors into account. We proposed a mechanistic model of protein turnover dynamics in different photosynthetic functions, which can be parameterized using leaves grown under different levels of constant light. By integrating this dynamic model into a multi-layer canopy model, constructed using data collected from a greenhouse experiment, it allowed us to test in silico the degree of optimality in photosynthetic nitrogen use for maximizing canopy carbon assimilation under given light environments.
Keywords
- Functional partitioning, Light fluctuation, Mechanistic model, Nitrogen reallocation, Optimality, Photosynthetic acclimation
ASJC Scopus subject areas
- Biochemistry, Genetics and Molecular Biology(all)
- General Biochemistry,Genetics and Molecular Biology
- Immunology and Microbiology(all)
- General Immunology and Microbiology
- Neuroscience(all)
- General Neuroscience
- Agricultural and Biological Sciences(all)
- Plant Science
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In: Journal of Experimental Botany, Vol. 10, No. 6, e3556, 20.03.2020.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Experiments for in silico evaluation of Optimality of Photosynthetic Nitrogen Distribution and Partitioning in the Canopy
T2 - An Example Using Greenhouse Cucumber Plants
AU - Stützel, Hartmut
AU - Pao, Yi-Chen
AU - Chen, Tsu-Wei
AU - Moualeu-Ngangue, Dany Pascal
N1 - Funding Information: This work was supported by Deutsche Forschungsgemeinschaft (DFG). This protocol is modified
PY - 2020/3/20
Y1 - 2020/3/20
N2 - Acclimation of leaf traits to fluctuating environments is a key mechanism to maximize fitness. One of the most important strategies in acclimation to changing light is to maintain efficient utilization of nitrogen in the photosynthetic apparatus by continuous modifications of between-leaf distribution along the canopy depth and within-leaf partitioning between photosynthetic functions according to local light availability. Between-leaf nitrogen distribution has been intensively studied over the last three decades, where proportional coordination between nitrogen concentration and light gradient was considered optimal in terms of maximizing canopy photosynthesis, without taking other canopy structural and physiological factors into account. We proposed a mechanistic model of protein turnover dynamics in different photosynthetic functions, which can be parameterized using leaves grown under different levels of constant light. By integrating this dynamic model into a multi-layer canopy model, constructed using data collected from a greenhouse experiment, it allowed us to test in silico the degree of optimality in photosynthetic nitrogen use for maximizing canopy carbon assimilation under given light environments.
AB - Acclimation of leaf traits to fluctuating environments is a key mechanism to maximize fitness. One of the most important strategies in acclimation to changing light is to maintain efficient utilization of nitrogen in the photosynthetic apparatus by continuous modifications of between-leaf distribution along the canopy depth and within-leaf partitioning between photosynthetic functions according to local light availability. Between-leaf nitrogen distribution has been intensively studied over the last three decades, where proportional coordination between nitrogen concentration and light gradient was considered optimal in terms of maximizing canopy photosynthesis, without taking other canopy structural and physiological factors into account. We proposed a mechanistic model of protein turnover dynamics in different photosynthetic functions, which can be parameterized using leaves grown under different levels of constant light. By integrating this dynamic model into a multi-layer canopy model, constructed using data collected from a greenhouse experiment, it allowed us to test in silico the degree of optimality in photosynthetic nitrogen use for maximizing canopy carbon assimilation under given light environments.
KW - Functional partitioning
KW - Light fluctuation
KW - Mechanistic model
KW - Nitrogen reallocation
KW - Optimality
KW - Photosynthetic acclimation
UR - http://www.scopus.com/inward/record.url?scp=85121260115&partnerID=8YFLogxK
U2 - 10.21769/BioProtoc.3556
DO - 10.21769/BioProtoc.3556
M3 - Article
VL - 10
JO - Journal of Experimental Botany
JF - Journal of Experimental Botany
SN - 0022-0957
IS - 6
M1 - e3556
ER -