KINETIC MODELING OF TIME‐RESOLVED FLUORESCENCE IN SPINACH CHLOROPLASTS

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Abstract
Abstract—Time‐resolved fluorescence decay profiles following picosecond excitation of plant chloro‐plasts or algae are now being measured with high precision and reproducibility. A number of suggestions have been put forward to explain the complex decay kinetics which are observed. In this paper three models are defined explicitly, solved rigorously, and compared in detail with experimental data. The complete description of energy transport in chloroplasts is no doubt very complicated, and only such quantitative comparisons will make it possible to decide which models are consistent with experiments. Of the three models examined, only the heterogeneous bipartite model has solutions which agree with commonly agreed upon features of the data. It offers, therefore, one starting point for more elaborate models and a guide to the design of further experiments.

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