Nadezhda I Shabnova

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Leaves of spinach (Spinacia oleracea, cv. Ispolinskii) were preilluminated by low-intensity light (1.0 and 1.5 W/m2, 0.5–3.0 h) with wavelengths ranging from 530 to 730 nm to study the effect of this pretreatment on the activity of photosystem II (PS II), content of photosynthetic pigments, and peroxidase activity in excised leaves exposed to UV-A(More)
The extent of damage caused to the photosynthetic machinery of 10-d-old wheat seedlings by short-term exposure to mild heat, their capacity to recover from it and the possible roles of H2O2, SOD, catalase and ascorbate peroxidase on the recovery process were investigated. Seedlings were subjected to heat treatments at 40/42/44 °C for 20 min in the dark and(More)
The nature of photosynthetic recovery was investigated in 10-d-old wheat (Triticum aestivum L., cv. Moskovskaya-35) seedlings exposed to temperatures of 40 and 42 degrees C for 20 min and to temperature 42 degrees C for 40 min in the dark. The aftereffect of heat treatment was monitored by growing the heat-treated plants in low/moderate/high light at 20(More)
This paper studies how UV-A irradiation and preirradiation of 10-day lettuce seedlings (Lactuca sativa L.) with red light (λmax = 664 nm, 10 min, 1 W m−2) affect the activity of the photosynthetic apparatus, content of chlorophylls a and b, and H2O2 in leaves, as well as peroxidase activity. Growth in the UV-A resistance of the photosynthetic apparatus was(More)
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