Preillumination of excised spinach leaves with red light increases resistance of photosynthetic apparatus to UV radiation

@article{Kreslavskii2012PreilluminationOE,
  title={Preillumination of excised spinach leaves with red light increases resistance of photosynthetic apparatus to UV radiation},
  author={V. D. Kreslavskii and Mikhail S. Khristin and Nadezhda I. Shabnova and Valeri Yu. Lyubimov},
  journal={Russian Journal of Plant Physiology},
  year={2012},
  volume={59},
  pages={717-723}
}
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 irradiation. Irradiation of leaves with UV-A suppressed the activity of PS II, reduced the content of chlorophylls (a + b) and carotenoids, and… CONTINUE READING

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