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Mathematical analysis of post-illumination transient increase in chlorophyll fluorescence and its dependence upon illumination duration in maize leaves

Jin Mingxian, Mi Hualing, Ye Jiyu, Shen Yungang

Shanghai Institute of Plant Physiology,Chinese Academy of Sciences.Shanghai 200032

Abstract

Post-illumination transient increase in chlorophyll fluorescence in intact maize leaves fitted well to a triple exponential model, showing the usefulness of the model as a mathematical framework for analysis. As illumination duration increased from 30 s to 270 s, the maximum ascending gradient, the height and the area of the post-illumination fluorescence peak went through an ascent and a subsequent gradual decline, while the maximal descending gradient after the peak showed a monotonicdecline. The change in magnitude of post-illumination fluorescence peak with increasing duration of illumination partially reflected the dynamics of the level of stromal reductants accumulated during illumination.

Key words: Chlorophyll fluorescence;Triple exponential model;Maize

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Citing This Article：

Jin Mingxian, Mi Hualing, Ye Jiyu, Shen Yungang. Mathematical analysis of post-illumination transient increase in chlorophyll fluorescence and its dependence upon illumination duration in maize leaves. Acta Physiol Sin 2000; 52 (3): (in Chinese with English abstract).