Fluorescence and Photosynthesis: Gated Detection and Analysis of Nanosecond Pulse Excitation

Mauzerall, D.

doi:10.1016/b978-0-12-005217-2.50012-9

Cited by 10 publications

(2 citation statements)

References 38 publications

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“…is the yield of product per hit, 0-i is the optical cross section forlthe unit producing i and E is the energy fluence in photons per unit area [18]. Then ~-~E is the average number of hits per target.…”

Section: Optical Cross Section and The Absolute Size Of A Psumentioning

confidence: 99%

The optical cross section and absolute size of a photosynthetic unit

Mauzerall

1986

Photosynth Res

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The concepts of a photosynthetic unit (PSU) and of an optical cross section are defined. The various estimates of sizes of photosynthetic units are described, and it is shown how an unambiguous measurement of the size of a unit can be obtained by measurement of its optical cross section via the saturation response to a single turnover light flash. The Emerson-Arnold unit must be divided by the quantum requirement for oxygen to obtain the true size of the unit. The size so obtained is the average number of chlorophylls per trap or reaction center. The effects of escape from open and closed traps are considered and it is shown that when these escape probabilities are equal, their effect on the saturation curve vanishes, leaving the simple cumulative one hit Poisson distribution.

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Section: Optical Cross Section and The Absolute Size Of A Psumentioning

confidence: 99%

The optical cross section and absolute size of a photosynthetic unit

Mauzerall

1986

Photosynth Res

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“…FJF, then represents a measure of the efficiency of photochemistry in PS2. Variations of this technique have been shown to be valuable for investigating basic properties of photosynthesis (Mauzerall 1980;Falkowski et al 1986Falkowski et al , 1988 and have recently begun to be applied to oceanographic research questions . Fig.…”

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confidence: 99%