A Microscale Model for Combined CO2 Diffusion and Photosynthesis in Leaves
| العنوان: | A Microscale Model for Combined CO2 Diffusion and Photosynthesis in Leaves |
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| المؤلفون: | Pieter Verboven, Xinyou Yin, Quang Tri Ho, Bart Nicolai, Paul C. Struik |
| المصدر: | PLoS ONE, Vol 7, Iss 11, p e48376 (2012) PLoS ONE 7 (2012) 11 PLoS ONE PLoS ONE, 7(11) |
| بيانات النشر: | Public Library of Science (PLoS), 2012. |
| سنة النشر: | 2012 |
| مصطلحات موضوعية: | Chloroplasts, lcsh:Medicine, mesophyll conductance, Plant Science, Biochemistry, Diffusion, chemistry.chemical_compound, leaf photosynthesis, Photosynthesis, Diffusion (business), lcsh:Science, Chlorophyll fluorescence, Triticum, Microscale chemistry, Multidisciplinary, Ecology, c-3 plants, chlorophyll fluorescence, Plant Biochemistry, Plants, PE&RC, Mitochondria, gas-exchange, Chemical physics, Plant Physiology, Carbon dioxide, Crop and Weed Ecology, Algorithms, Research Article, temperature response, Leafs, Ecological Metrics, internal conductance, carbon-dioxide, Models, Biological, Plant-Environment Interactions, Botany, Gaseous diffusion, Computer Simulation, Leerstoelgroep Gewas- en onkruidecologie, Biology, Plant Ecology, lcsh:R, biochemical-model, Conductance, Carbon Dioxide, Electron transport chain, Photosynthetic Efficiency, electron-transport, Oxygen, Plant Leaves, Kinetics, chemistry, Plant Stomata, lcsh:Q |
| الوصف: | Transport of CO(2) in leaves was investigated by combining a 2-D, microscale CO(2) transport model with photosynthesis kinetics in wheat (Triticum aestivum L.) leaves. The biophysical microscale model for gas exchange featured an accurate geometric representation of the actual 2-D leaf tissue microstructure and accounted for diffusive mass exchange of CO(2.) The resulting gas transport equations were coupled to the biochemical Farquhar-von Caemmerer-Berry model for photosynthesis. The combined model was evaluated using gas exchange and chlorophyll fluorescence measurements on wheat leaves. In general a good agreement between model predictions and measurements was obtained, but a discrepancy was observed for the mesophyll conductance at high CO(2) levels and low irradiance levels. This may indicate that some physiological processes related to photosynthesis are not incorporated in the model. The model provided detailed insight into the mechanisms of gas exchange and the effects of changes in ambient CO(2) concentration or photon flux density on stomatal and mesophyll conductance. It represents an important step forward to study CO(2) diffusion coupled to photosynthesis at the leaf tissue level, taking into account the leaf's actual microstructure. |
| وصف الملف: | application/pdf; application/octet-stream |
| تدمد: | 1932-6203 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5654a71eb96021a2a18a285fe511670aTest https://doi.org/10.1371/journal.pone.0048376Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....5654a71eb96021a2a18a285fe511670a |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19326203 |
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