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Sensors 2014, 14(12), 23620-23629;

On the Potential Usefulness of Fourier Spectra of Delayed Fluorescence from Plants

Department of Bioengineering, University of Missouri, Columbia, MO 65211, USA
Author to whom correspondence should be addressed.
Received: 25 October 2014 / Revised: 27 November 2014 / Accepted: 2 December 2014 / Published: 9 December 2014
(This article belongs to the Section Biosensors)
Full-Text   |   PDF [1154 KB, uploaded 9 December 2014]


Delayed fluorescence (DF) from photosystem II (PSII) of plants can be potentially used as a biosensor for the detection of plant physiological status and environmental changes. It has been analyzed mainly in the time domain. Frequency-domain analysis through Fourier transform allows viewing a signal from another angle, but the usefulness of DF spectra has not been well studied. In this work, experiments were conducted to show the differences and similarities in DF spectra of different plants with short pulse excitation. The DF spectra show low-pass characteristics with first-order attenuation of high frequencies. The results also show that the low-frequency components differ while the high-frequency components are similar. These may imply the potential usefulness of Fourier spectra of DF to analyze photoelectron transport in plants and classify samples. View Full-Text
Keywords: Fourier transform; delayed fluorescence; photosynthesis; PSII Fourier transform; delayed fluorescence; photosynthesis; PSII
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Guo, Y.; Tan, J. On the Potential Usefulness of Fourier Spectra of Delayed Fluorescence from Plants. Sensors 2014, 14, 23620-23629.

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