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Modelling and simulation of chlorophyll fluorescence from PSII of a plant leaf as affected by both illumination light intensities and temperatures.
IET Systems Biology ( IF 2.3 ) Pub Date : 2019-12-01 , DOI: 10.1049/iet-syb.2019.0039
Lijiang Fu 1 , Qian Xia 1 , Jinglu Tan 2 , Hao Wu 3 , Ya Guo 2
Affiliation  

The emission of chlorophyll fluorescence (ChlF) from photosystem II (PSII) of plant leaves the couple with photoelectron transduction cascades in photosynthetic reactions and can be used to probe photosynthetic efficiency and plant physiology. Because of population increase, food shortages, and global warming, it is becoming more and more urgent to enhance plant photosynthesis efficiency by controlling plant growth rate. An effective model structure is essential for plant control strategy development. However, there is a lack of reporting on modelling and simulation of PSII activities under the interaction of both illumination light intensities and temperatures, which are the two important controllable factors affecting, plant growth, especially for a greenhouse. In this work, the authors extended their work on modelling photosynthetic activities as affected by light and temperature to cover both the interaction effects of illumination light intensities and temperature on ChlF emission. Experiments on ChlF were performed under different light intensities and temperatures and used to validate the developed model structure. The average relative error between experimental data and model fitting is <0.3%, which shows the effectiveness of the developed model structure. Simulations were performed to show the interaction effect of light and temperature effects on photosynthetic activities.

中文翻译:

受光照强度和温度影响的植物叶片 PSII 的叶绿素荧光的建模和模拟。

植物光系统 II (PSII) 发出的叶绿素荧光 (ChlF) 使这对夫妇在光合反应中具有光电子转导级联反应,可用于探测光合效率和植物生理学。由于人口增长、粮食短缺和全球变暖,通过控制植物生长速率来提高植物光合作用效率变得越来越紧迫。有效的模型结构对于工厂控制策略的开发至关重要。然而,缺乏对光照强度和温度相互作用下PSII活动的建模和模拟的报道,这是影响植物生长的两个重要可控因素,尤其是温室。在这项工作中,作者扩展了他们对受光和温度影响的光合活动建模的工作,以涵盖照明光强度和温度对 ChlF 发射的相互作用影响。ChlF 实验在不同的光强和温度下进行,并用于验证开发的模型结构。实验数据与模型拟合的平均相对误差<0.3%,显示了所开发模型结构的有效性。进行了模拟以显示光和温度效应对光合活性的相互作用。ChlF 实验在不同的光强和温度下进行,并用于验证开发的模型结构。实验数据与模型拟合的平均相对误差<0.3%,显示了所开发模型结构的有效性。进行了模拟以显示光和温度效应对光合活性的相互作用。ChlF 实验在不同的光强和温度下进行,并用于验证开发的模型结构。实验数据与模型拟合的平均相对误差<0.3%,显示了所开发模型结构的有效性。进行了模拟以显示光和温度效应对光合活性的相互作用。
更新日期:2019-11-01
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