A mechanistic model for the photosynthesis-light response based on the photosynthetic electron transport of photosystem II in C3 and C4 species
文献类型：SCI/SSCI论文
| 作者 | Ye Z. P. ; Suggett D. J. ; Robakowski P. ; Kang H. J. |
| 发表日期 | 2013 |
| 关键词 | electron transport rate maximum net photosynthetic rate photoprotection photosynthesis reversible photoinhibition saturation light intensity chlorophyll fluorescence gas-exchange pigment molecules co2 concentration leaf respiration in-vivo leaves photoinhibition photoprotection parameters |
| 英文摘要 | A new mechanistic model of the photosynthesis-light response is developed based on photosynthetic electron transport via photosystem II (PSII) to specifically describe light-harvesting characteristics and associated biophysical parameters of photosynthetic pigment molecules. This model parameterizes core' characteristics not only of the light response but also of difficult to measure physical parameters of photosynthetic pigment molecules in plants. Application of the model to two C3 and two C4 species grown under the same conditions demonstrated that the model reproduced extremely well (r2>0.992) the light response trends of both electron transport and CO2 uptake. In all cases, the effective absorption cross-section of photosynthetic pigment molecules decreased with increasing light intensity, demonstrating novel operation of a key mechanism for plants to avoid high light damage. In parameterizing these previously difficult to measure characteristics of light harvesting in higher plants, the model provides a new means to understand the mechanistic processes underpinning variability of CO2 uptake, for example, photosynthetic down-regulation or reversible photoinhibition induced by high light and photoprotection. However, an important next step is validating this parameterization, possibly through application to less structurally complex organisms such as single-celled algae. |
| 出处 | New Phytologist |
| 卷 | 199 |
| 期 | 1 |
| 页 | 110-120 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0028-646X |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/30089]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Ye Z. P.,Suggett D. J.,Robakowski P.,et al. A mechanistic model for the photosynthesis-light response based on the photosynthetic electron transport of photosystem II in C3 and C4 species. 2013. |
入库方式： OAI收割
来源：地理科学与资源研究所
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