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首页> 外文期刊>Marine ecology progress series >New cell-based model of photosynthesis and photo-acclimation: accumulation and mobilisation of energy reserves in phytoplankton
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New cell-based model of photosynthesis and photo-acclimation: accumulation and mobilisation of energy reserves in phytoplankton

机译：基于细胞的光合作用和光适应新模型：浮游植物能量储备的积累和动员

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In this study, we present a new model of acclimation to light under nutrient-replete conditions based on the photo-acclimation model by Geider et al. (1998; Limnol Oceanogr 43:679-694). Rather than being solely carbon (C)-based, the new model employs the cell as the basic unit, which makes it more amenable for application in individual-based (Lagrangian) modelling approaches. The model differentiates between a functional C pool which also contains nitrogen (N) and an energy reserve pool which does not contain N. The cell-specific light-saturated photosynthetic rate is assumed to scale with the size of the functional pool, and the light-limited photosynthetic rate with the cellular chlorophyll content. Through the explicit inclusion of a C (energy) storage pool, an improved regulatory term for chlorophyll synthesis, and the addition of an optional acceleratory term, the dynamics of the model in comparison to the original model could be improved. This is demonstrated by observations during a light-shift rnexperiment on the diatom Skeletonema costatum.
机译：在这项研究中，我们基于Geider等人的光适应模型，提出了一种在养分充足条件下光适应的新模型。 （1998； Limnol Oceanogr 43：679-694）。新模型不是完全基于碳（C），而是将电池作为基本单位，这使其更适合用于基于个人（拉格朗日）的建模方法。该模型区分了也包含氮（N）的功能性C池和不包含N的能量储备池。假定特定于细胞的光饱和光合作用速率随功能池的大小而变化。细胞的叶绿素含量限制了光合作用速率。通过明确包含一个C（能量）存储池，一个改进的叶绿素合成调节项以及一个可选的加速项，可以提高模型与原始模型相比的动态性。这在硅藻骨骼藻的光移实验中观察到。

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