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Local burning-induced changes in surface electrical potential and photosynthetic parameters of the second mature leaf of pea seedlings (n = 8). A. Changes in stem (ES) and leaf (EL) surface potential and CO2 assimilation rate (ACO2). B. Changes in quantum yields of PSI (фPSI) and PSII (фPSII) and non-photochemical quenching in PSII (NPQ). Local burning of the first mature leaf is indicated by the black arrow.
