Psii photochemical efficiency
WebApr 13, 2024 · Compared with those of EMW, the PSII photochemical efficiencies (Fv/Fm) and light quantum efficiency (Fq′/Fm′) of em41 were similar in leaf blades, stems, petioles and the fruit interior but were significantly lower in the exocarp (Fig. 5A), indicating that the photosynthetic machinery of light energy absorption and conversion is similar in ... WebThis indicates that the photochemical reaction of ‘Vignoles’ was more thermostable and has greater ability to recover from SHS and GHS heat stress of 40 °C compared with ‘Cynthiana’. The gradual exposure to high …
Psii photochemical efficiency
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WebOct 28, 2024 · Experiment 1: the effects of emersion under 50% humidity on PSII photochemical efficiency and its recovery following seawater rehydration. The samples … WebJan 25, 2024 · Chlorophyll fluorescence is an efficient and non-destructive technique to measure the photochemical efficiency of PSII and thereby detect the damage of stress in PSII . The maximum potential quantum efficiency of PSII (F v /F m ) provides an estimate of the maximum quantum efficiency of PSII, which is primarily affected by heat stress [ 4 , 31 ].
WebSep 1, 2001 · PSII quantum efficiency was measured as described above. The rate of non‐cyclic electron transport associated with Rubisco and its partitioning to CO 2 assimilation and photorespiration were calculated ( Ghashghaie and Cornic, 1994 ). WebApr 11, 2024 · The OsRCAOE lines showed significantly higher initial Rubisco activity and activation state, net photosynthetic rate, and PSII photochemical quantum yield than …
Web1 day ago · The parameters included the maximum photochemical efficiency (Fv/Fm) of PSII, the actual photochemical quantum yield of PSII (ΦPSII), non-photochemical … 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.
WebMar 12, 2008 · Using the expression of fluorescence originated from the PSII open reaction center in the light by Oxborough and Baker (1997), we obtained a formula that expresses relationships between the quantum efficiency of PSII photochemistry in the dark (Φ m = F v /F m) and in the light , where denotes the quantum yield of light induced non …
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 … changi bethany school-houseWebFeb 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 … changi beach weatherWebMaximal photochemical efficiency of PSII (Fv/Fm, A), the effective quantum yield of PSII photochemistry (ΦPSII, B), photochemical quenching coefficient (qP, C), the maximum … changi beach singaporeWebUnder 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. harga knee pvc 3 inch awWebSUMMARY We determined the response of photochemical efficiency to desiccation and salinity in an edible brown alga, Saccharina japonica (var. japonica), using a pulse … changi bethanychangi beach park foodWebApr 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 ... changi beach park postal code