On the nature of the photosynthetic energy storage monitored by photoacoustic spectroscopy

Robert Carpentier; Roger M. Leblanc; Murielle Mimeault

doi:10.1007/BF00034861

On the nature of the photosynthetic energy storage monitored by photoacoustic spectroscopy

Robert Carpentier, Roger M. Leblanc, Murielle Mimeault

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

The photosynthetic energy storage yield of uncoupled thylakoid membranes was monitored by photoacoustic spectroscopy at various measuring beam intensities. The energy storage rate as evaluated by the half-saturation measuring beam intensity (i₅₀) was inhibited by 3-(3,4-dichlorophenyl)-1,1 dimethylurea, by heat inactivation or by artificial electron acceptors specific for photosystem I or photosystem II; and was activated by electron donors to photosystem I. The reactions involving both photosystems were all characterized by a similar maximal energy storage yield of 16±2 percent. The data could be interpreted if we assumed that the energy storage elicited by the photosystems at 35 Hz is detected at the level of the plastoquinone pool.

Original language	English (US)
Pages (from-to)	313-318
Number of pages	6
Journal	Photosynthesis Research
Volume	23
Issue number	3
DOIs	https://doi.org/10.1007/BF00034861
State	Published - Mar 1 1990
Externally published	Yes

Keywords

electron transfer
energy storage
photoacoustic spectroscopy
photosynthesis
plastoquinone
thylakoid membranes

ASJC Scopus subject areas

Plant Science

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10.1007/BF00034861

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AU - Leblanc, Roger M.

AU - Mimeault, Murielle

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KW - energy storage

KW - photoacoustic spectroscopy

KW - photosynthesis

KW - plastoquinone

KW - thylakoid membranes

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On the nature of the photosynthetic energy storage monitored by photoacoustic spectroscopy

Abstract

Keywords

ASJC Scopus subject areas

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