Please use this identifier to cite or link to this item:https://hdl.handle.net/20.500.12259/61915
Type of publication: research article
Type of publication (PDB): Straipsnis Clarivate Analytics Web of Science / Article in Clarivate Analytics Web of Science (S1)
Field of Science: Ekologija ir aplinkotyra / Ecology and environmental sciences (N012)
Author(s): Januškaitienė, Irena;Sakalauskienė, Sandra
Title: Dynamics of photosynthetic and oxidative stress parameters of two spinach species after short-term low UV-B radiation effect
Is part of: Acta Scientiarum Polonorum Hortorum Cultus. Lublin: Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie, 2019, vol. 18, iss. 1
Extent: p. 141-149
Date: 2019
Keywords: UV-B radiation;Antioxidants;Oxidative stress;Spinach;Photosynthetic parameters
Abstract: This work aimed to underline the dynamics of photosynthetic and oxidative stress parameters of ‘Matador’ and ‘Andromeda’ spinach species after short-term 1 and 2 kJm–2 UV-B radiation effect. When plants reached 3–4 leaves growths stage, the exposure to 1 kJm–2 and 2 kJm–2 UV-B radiation was done once for 68 and 136 minutes, respectively. The photosynthetic and oxidative stress parameters were determined 2, 24, 48 and 72 hours after exposure. The stimulating effect of UV-B emerged on the 3rd day after exposure. The positive effect of UV-B was more pronounced for ‘Matador’. The highest DPPH radical-scavenging capacity and the highest concentration of α-tocopherols were detected 24 hours after 2 kJ UV-B exposure, but the decrease in photosynthetic rate was the highest as well. Meanwhile, on the 3rd day after 1 kJ UV-B exposure, the indicators of oxidative stress of ‘Matador’ decreased, and the photosynthetic rate increased. This study highlights that low UV-B radiation acts as an eustress, by awaking positive changes in photosynthetic and oxidative stress parameters of spinach
Internet: https://www.vdu.lt/cris/bitstream/20.500.12259/61915/1/ISSN2545-1405_2019_V_18_1.PG_141-149.pdf
https://hdl.handle.net/20.500.12259/61915
https://doi.org/10.24326/asphc.2019.1.14
Affiliation(s): Aplinkotyros katedra
Lietuvos sodininkystės ir daržininkystės institutas
Vytauto Didžiojo universitetas
Appears in Collections:1. Straipsniai / Articles
Universiteto mokslo publikacijos / University Research Publications

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