Psii photochemical efficiency
WebUnder a growth light of 10-65 µmol photons m -2 s -1 with a broader spectral range, the PSI:PSII ratio is ∼2.5:1 in Synechocystis ( Fraser et al., 2013 ). Therefore, a FractionPSII of 0.29 (i.e., 1/3.5) was used to calculate ETRPSII in the empty-vector control grown at 25 µmol photons m -2 s -1. WebFeb 16, 2024 · The expression of performance index PI ABS is the product of three independent characteristics: the density of active RC per PSII antenna chlorophyll …
Psii photochemical efficiency
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WebMar 9, 2024 · The potential quantum efficiency of PSII (Fv/Fm) was calculated from (Fm - Fo) / Fm (Demmig-Adams et al. 1996 ). The actual PSII efficiency (ΔF / Fm’) is the effective quantum yield of linear electron flux through PSII, and used to express the ability of PSII to perform photochemistry. WebOct 28, 2024 · Experiment 1: the effects of emersion under 50% humidity on PSII photochemical efficiency and its recovery following seawater rehydration. The samples …
WebThe effective quantum yields (ΔF/F m '; = Φ PSII) of photosystem II (PSII) dropped to zero after 360-min aerial exposure under low irradiance (20 μmol photons m −2 s −1) and 120 …
WebApr 11, 2024 · The OsRCAOE lines showed significantly higher initial Rubisco activity and activation state, net photosynthetic rate, and PSII photochemical quantum yield than … WebDec 1, 2024 · The occurrence of Phycocalidia tanegashimensis (Bangiaceae) in the splash zone may be related to the tolerance of photochemical efficiency to temperature, irradiance, desiccation, and salinity. Journal of Applied Phycology33 (5): 3427–3435 DOI: 10.1007/s10811-021-02498-w (Online: 22 May 2024; Issue: October 2024) 13.
WebComparing chamber-grown plants and the field plants, we showed that kpi is determined by the incident light level and the photosynthetic capacities such as in situ rate of PSII …
WebJul 19, 2024 · Photosystem II (PSII) uses the energy from red light to split water and reduce quinone, an energy-demanding process based on chlorophyll a (Chl-a) photochemistry. Two types of cyanobacterial PSII can use chlorophyll d (Chl-d) and chlorophyll f (Chl-f) to perform the same reactions using lower energy, far-red light. permafrost mammothWebApr 11, 2024 · In this paper, PSII photochemical efficiency (Fv/fm) was measured, and the QY values were shown in Fig. 3 after water stress was simulated on each of the groups of test corn. It can be seen that, when there is a greater degree of water stress, the QY value decreases. After the water stress, QY is restored to 92%, 82%, and 74% of the control ... permafrost map worldWebApr 20, 2024 · The parameter of maximum photochemical efficiency of PSII (the ratio of variable (Fv) to maximum (Fm) fluorescence, Fv/Fm) is commonly used as an indicator of the photosynthetic capacity and ... permafrost mappingWebContext 1 ... maximum photochemical efficiency of PSII (Fv/Fm) and the effective photochemical efficiency of PSII (ΦPSII) showed a significant decrease in Brigitta and … permafrost melting consequencesWebApr 11, 2024 · In this paper, PSII photochemical efficiency (Fv/fm) was measured, and the QY values were shown in Fig. 3 after water stress was simulated on each of the groups of … permafrost melting picturesWebUnder high irradiance, the maximum Pn and ETR were reached at 24 °C. Increased irradiance decreased the PSII operating efficiency and increased NPQ, while both high irradiance … permafrost melting articleWeb1 day ago · The parameters included the maximum photochemical efficiency (Fv/Fm) of PSII, the actual photochemical quantum yield of PSII (ΦPSII), non-photochemical … permafrost methane bomb