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 |
|---|---|
| Pages (from-to) | 313-318 |
| Number of pages | 6 |
| Journal | Photosynthesis Research |
| Volume | 23 |
| Issue number | 3 |
| DOIs | |
| State | Published - Mar 1 1990 |
| Externally published | Yes |
Fingerprint
Keywords
- electron transfer
- energy storage
- photoacoustic spectroscopy
- photosynthesis
- plastoquinone
- thylakoid membranes
ASJC Scopus subject areas
- Plant Science
Cite this
On the nature of the photosynthetic energy storage monitored by photoacoustic spectroscopy. / Carpentier, Robert; Leblanc, Roger; Mimeault, Murielle.
In: Photosynthesis Research, Vol. 23, No. 3, 01.03.1990, p. 313-318.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - On the nature of the photosynthetic energy storage monitored by photoacoustic spectroscopy
AU - Carpentier, Robert
AU - Leblanc, Roger
AU - Mimeault, Murielle
PY - 1990/3/1
Y1 - 1990/3/1
N2 - 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.
AB - 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.
KW - electron transfer
KW - energy storage
KW - photoacoustic spectroscopy
KW - photosynthesis
KW - plastoquinone
KW - thylakoid membranes
UR - http://www.scopus.com/inward/record.url?scp=0000472478&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0000472478&partnerID=8YFLogxK
U2 - 10.1007/BF00034861
DO - 10.1007/BF00034861
M3 - Article
VL - 23
SP - 313
EP - 318
JO - Photosynthesis Research
JF - Photosynthesis Research
SN - 0166-8595
IS - 3
ER -