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10.3390/cells11213437
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Article

Effect of Phytochrome Deficiency on Photosynthesis, Light-Related Genes Expression and Flavonoid Accumulation in Solanum lycopersicum under Red and Blue Light

by
Pavel Pashkovskiy
1,*,
Mikhail Vereshchagin
1,
Vladimir Kreslavski
2,
Yury Ivanov
1,
Tamara Kumachova
3,
Andrey Ryabchenko
4,
Alexander Voronkov
1,
Anatoliy Kosobryukhov
2,
Vladimir Kuznetsov
1 and
Suleyman I. Allakhverdiev
1,*
1
K.A. Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, Botanicheskaya Street 35, 127276 Moscow, Russia
2
Institute of Basic Biological Problems, Russian Academy of Sciences, Institutskaya Street 2, Pushchino, 142290 Moscow, Russia
3
Department Plant Physiology, Russian State Agrarian University—Moscow Timiryazev Agricultural Academy, Timiryazevskaya Street 49, 127550 Moscow, Russia
4
Tsitsin Main Botanical Garden, Russian Academy of Sciences, Botanicheskaya Street 4, 127276 Moscow, Russia
*
Authors to whom correspondence should be addressed.
Cells 2022, 11(21), 3437; https://doi.org/10.3390/cells11213437
Submission received: 11 October 2022 / Revised: 27 October 2022 / Accepted: 28 October 2022 / Published: 31 October 2022
(This article belongs to the Special Issue Transcription Factors in Light Signaling: Differences between Angiosperms and Gymnosperms)
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Abstract

The effect of red (RL, 660 nm) and blue (BL, 450 nm) light on phy mutant tomato plants was studied. The rates of photosynthesis (Pn) and transpiration, the efficiency of the primary photochemical processes of photosynthesis, the contents of flavonoids and phenolic compounds, the low-molecular-weight antioxidant capacity (Trolox equivalent antioxidant capacity (TEAC)) of leaf extracts, and the expression of light-dependent genes were evaluated. Under RL, BL, and white fluorescent light (WFL), the Pn values decreased in the order: WT > phyb2 > phyaphyb2 > phyaphyb1phyb2, except for the Pn in phyb2 on BL. Phyb2 also had a larger number of stomata under BL and, as a result, it reached maximum transpiration. The noticeable accumulation of flavonoids and phenolic compounds was observed only in the phyb2 and phyaphyb2 mutants upon irradiation with BL, which agrees with the increased TEAC in the leaf extracts. We suggest that the increased antioxidant activity under PHYB2 deficiency and the maintenance of high photosynthesis under BL are based on an increase in the expression of the early signaling transcription factors genes BBX, HY5. The largest decrease in the content of flavonoids and TEAC was manifested with a deficiency in PHYB1, which is probably the key to maintaining the antioxidant status in BL plants.
Keywords: BBX blue light; flavonoids; HY5; photosynthesis; red light; Solanum lycopersicum; transcription factors BBX blue light; flavonoids; HY5; photosynthesis; red light; Solanum lycopersicum; transcription factors
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MDPI and ACS Style

Pashkovskiy, P.; Vereshchagin, M.; Kreslavski, V.; Ivanov, Y.; Kumachova, T.; Ryabchenko, A.; Voronkov, A.; Kosobryukhov, A.; Kuznetsov, V.; Allakhverdiev, S.I. Effect of Phytochrome Deficiency on Photosynthesis, Light-Related Genes Expression and Flavonoid Accumulation in Solanum lycopersicum under Red and Blue Light. Cells 2022, 11, 3437. https://doi.org/10.3390/cells11213437

AMA Style

Pashkovskiy P, Vereshchagin M, Kreslavski V, Ivanov Y, Kumachova T, Ryabchenko A, Voronkov A, Kosobryukhov A, Kuznetsov V, Allakhverdiev SI. Effect of Phytochrome Deficiency on Photosynthesis, Light-Related Genes Expression and Flavonoid Accumulation in Solanum lycopersicum under Red and Blue Light. Cells. 2022; 11(21):3437. https://doi.org/10.3390/cells11213437

Chicago/Turabian Style

Pashkovskiy, Pavel, Mikhail Vereshchagin, Vladimir Kreslavski, Yury Ivanov, Tamara Kumachova, Andrey Ryabchenko, Alexander Voronkov, Anatoliy Kosobryukhov, Vladimir Kuznetsov, and Suleyman I. Allakhverdiev. 2022. "Effect of Phytochrome Deficiency on Photosynthesis, Light-Related Genes Expression and Flavonoid Accumulation in Solanum lycopersicum under Red and Blue Light" Cells 11, no. 21: 3437. https://doi.org/10.3390/cells11213437

APA Style

Pashkovskiy, P., Vereshchagin, M., Kreslavski, V., Ivanov, Y., Kumachova, T., Ryabchenko, A., Voronkov, A., Kosobryukhov, A., Kuznetsov, V., & Allakhverdiev, S. I. (2022). Effect of Phytochrome Deficiency on Photosynthesis, Light-Related Genes Expression and Flavonoid Accumulation in Solanum lycopersicum under Red and Blue Light. Cells, 11(21), 3437. https://doi.org/10.3390/cells11213437

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