Furthermore, there is no lateral segregation of PS I and PSII into stromal and granal regions of the thylakoid in chromo-phyte algae (Gibbs 1970), suggestinga fundamental difference in regulation of light-harvesting.Fiona BentleyJulia Harnett...
To test the association of the HLR1 protein with PSI or PSII, fractionation of alpha-dodecylmaltoside (α-DM)-solubilized thylakoids from WT and thehlr1mutant was performed by blue-native polyacrylamide gel electrophoresis (BN-PAGE) (Fig.3a). Several bands were resolved in the BN-PAGE gel, ...
1.叶绿素荧光成像分析(标配):620nm脉冲测量光、白色光化学光和最大饱和光闪、735nm红外光用于测量Fo’等,可选配GFP成像测量;单幅成像面积35x35cm;成像测量参数包括Fo, Fm, Fv, Fo’, Fm’, Fv’, Ft, Fv/Fm, Fv’/Fm’, Phi_PSII, NPQ, qN, qP, Rfd等叶绿素荧光参数 2.RGB成像分析(标配):可对植...
If an obligate role for ATP generation during photosynthesis exists, then it would be predicted that the relative rates of cyclic and linear flow should be constant and so the rates of PSI and PSII turnover linearly related. Under low light conditions, this is generally seen, however there is...
We investigated the reason for the absence of the long-wavelength PSI Chl a fluorescence at -196 degrees C in the cyanobacterium Gloeobacter violaceus using two methods: p-nitrothiophenol (p-NTP) treatment and time-resolved fluorescence spectra. The p-NTP treatment showed that PSII Chl a fluores...
This result suggested that after salt stress the recovery of the cyclic electron flow around PSI was independent of PSII activity. In addition, G6PDH activity and NADPH content increased under high salt stress. When G6PDH activity was inhibited by glucosamine (Glucm, a G6PDH inhibitor), the ...
Although the difference between these numbers is not significant, there is a tendency that the Chl a/b ratio is slightly higher in the absence of PSI-O, which suggests that plants without PSI-O have a slightly higher PSI/PSII ratio or a slightly decreased peripheral antenna. To analyze this...
The chloroplast-encoded low molecular weight protein PsbN is annotated as a photosystem II (PSII) subunit. To elucidate the localization and function of Ps... - 《Plant Cell》 被引量: 0发表: 2014年 The plastome-encoded PsaJ subunit is required for efficient Photosystem I excitation, but not...
In this setup, the maximal P700+ levels were measured as the ΔI/I 435 nm at 200 ns after a single-turnover flash in presence of the PSII inhibitors DCMU and HA. A LED-based spectrophotometer (JTS10, Biologic, France) was used for measurements of absorbance change kinetics in the >100...
The leaf was then illuminated for 20 min with 100 μmol photons m−2s−1 blue light (which favors PSII) from a Schott KL-1500 lamp equipped with a Corning 4–96 filter. The maximum fluorescence yield (Fm2) was then measured in this state (state 2). Subsequently state 1 was induced...