Abstract
Abstract— Thermal and fluorescence emission from thylakoid membranes were monitored simultaneously in a photoacoustic cell. A close relationship existing between variable fluorescence and variable thermal emissions is demonstrated. The modulated measuring beam of the photoacoustic spectrophotometer was used to study the effect of light intensity on the energy storage yield and on the variable fluorescence yield. The half‐saturation light intensities obtained for both parameters were 8.5 and 9.1 W m −2 , respectively. The similar sensitivity of energy storage and variable fluorescence yield to light intensity indicates that electron transfer with plastoquinone as last acceptor is probably responsible for the photoacoustically monitored energy storage.
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Claims 4
Claim · model-written summary
Variable fluorescence and variable thermal emission were closely related.
Not reportedTaxonDirection
Verbatim
e0“A close relationship existing between variable fluorescence and variable thermal emissions is demonstrated.”
Claim · model-written summary
Energy storage yield had a half-saturation light intensity of 8.5 W m −2.
Not reportedTaxon
Verbatim
e0“The half‐saturation light intensities obtained for both parameters were 8.5 and 9.1 W m −2 , respectively.”
e1“energy storage yield and on the variable fluorescence yield”
Claim · model-written summary
Variable fluorescence yield had a half-saturation light intensity of 9.1 W m −2.
- Outcome
- half‐saturation light intensitiese0
- Value
- 8.5 and 9.1 W m −2e0
- Qualifier
- variable fluorescence yielde1
Not reportedTaxon
Verbatim
e0“The half‐saturation light intensities obtained for both parameters were 8.5 and 9.1 W m −2 , respectively.”
e1“energy storage yield and on the variable fluorescence yield”
Claim · model-written summary
Similar light sensitivity suggests electron transfer with plastoquinone as final acceptor causes monitored energy storage.
- Compound
- plastoquinonee0
- Outcome
- photoacoustically monitored energy storagee0
- Qualifier
- electron transfer with plastoquinone as last acceptore0
Not reportedTaxon
Verbatim
e0“The similar sensitivity of energy storage and variable fluorescence yield to light intensity indicates that electron transfer with plastoquinone as last acceptor is probably responsible for the photoacoustically monitored energy storage.”