Distinctive regulation of different phenolics biosynthesis by high light and UV-B in three basil varieties
Аутори
Milić Komić, SonjaŽivanović, Bojana
Sedlarević Zorić, Ana
Vidović, Marija
Veljović Jovanović, Sonja
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Three varieties of basil (Ocimum x citriodorum, Ocimum basilicum var. Genovese and Ocimumbasilicum var. purpurascens) were used to examine the effect of different PAR intensities (100, 400and 1400 µmol photons m-2s-1), as well as different UV-B/PAR ratios, on leaf phenolics accumulation, and components of the ascorbate-glutathione cycle. Phenolic compounds represent themost abundant class of secondary metabolites, and their function in plants involves protectionagainst numerous abiotic stresses, role in growth and development, flowering, reproduction andseed dispersion. A preferential accumulation of HCAs over Flav, induction of class III POD activityand decreased ascorbate content were characteristic responses to pro-oxidative effect of the highUV-B/PAR ratio in all three basil varieties. The most remarkable result was the lack of accumulationof epidermal UV absorbing substances, which appeared to be a crucial photoprotective mechanism in sunlight. The contrasting effect of ecological...ly relevant UV-B radiation on basil plants,pro-oxidative vs. acclimative, was determined by the quality and intensity of the background light.Acclimation of basil to high light comprises a number of processes, among which are the accumulation of epidermal flavonoids and total leaf phenolics, antioxidant response (increase in Asc andGSH) and lack of downregulation of PSII upon increasing light intensity. Among varieties that weused as model system in this study, purple basil, with the highest constitutive amount of anthocyanidins, showed the least induction of epidermal flavonoids and lack of light effect upon transferfrom initial 50 to 250 µmol photons m-2s-1.
Кључне речи:
basil varieties / phenolics / high light / leaf anthocyaninsИзвор:
4th International Conference on Plant Biology and 23rd SPPS Meeting, 2022, 43-Издавач:
- Serbian Plant Physiology Society Institute for Biological Research “Siniša Stanković” – National Institute of Republic of Serbia, University of Belgrade Faculty of Biology, University of Belgrade
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200053 (Универзитет у Београду, Институт за мултидисциплинарна истраживања) (RS-MESTD-inst-2020-200053)
Напомена:
- Book of Abstracts: 4th International Conference on Plant Biology and 23rd SPPS Meeting, 6-8 October 2022, Belgrade
Институција/група
Institut za molekularnu genetiku i genetičko inženjerstvoTY - CONF AU - Milić Komić, Sonja AU - Živanović, Bojana AU - Sedlarević Zorić, Ana AU - Vidović, Marija AU - Veljović Jovanović, Sonja PY - 2022 UR - https://imagine.imgge.bg.ac.rs/handle/123456789/1841 AB - Three varieties of basil (Ocimum x citriodorum, Ocimum basilicum var. Genovese and Ocimumbasilicum var. purpurascens) were used to examine the effect of different PAR intensities (100, 400and 1400 µmol photons m-2s-1), as well as different UV-B/PAR ratios, on leaf phenolics accumulation, and components of the ascorbate-glutathione cycle. Phenolic compounds represent themost abundant class of secondary metabolites, and their function in plants involves protectionagainst numerous abiotic stresses, role in growth and development, flowering, reproduction andseed dispersion. A preferential accumulation of HCAs over Flav, induction of class III POD activityand decreased ascorbate content were characteristic responses to pro-oxidative effect of the highUV-B/PAR ratio in all three basil varieties. The most remarkable result was the lack of accumulationof epidermal UV absorbing substances, which appeared to be a crucial photoprotective mechanism in sunlight. The contrasting effect of ecologically relevant UV-B radiation on basil plants,pro-oxidative vs. acclimative, was determined by the quality and intensity of the background light.Acclimation of basil to high light comprises a number of processes, among which are the accumulation of epidermal flavonoids and total leaf phenolics, antioxidant response (increase in Asc andGSH) and lack of downregulation of PSII upon increasing light intensity. Among varieties that weused as model system in this study, purple basil, with the highest constitutive amount of anthocyanidins, showed the least induction of epidermal flavonoids and lack of light effect upon transferfrom initial 50 to 250 µmol photons m-2s-1. PB - Serbian Plant Physiology Society Institute for Biological Research “Siniša Stanković” – National Institute of Republic of Serbia, University of Belgrade Faculty of Biology, University of Belgrade C3 - 4th International Conference on Plant Biology and 23rd SPPS Meeting T1 - Distinctive regulation of different phenolics biosynthesis by high light and UV-B in three basil varieties SP - 43 UR - https://hdl.handle.net/21.15107/rcub_imagine_1841 ER -
@conference{ author = "Milić Komić, Sonja and Živanović, Bojana and Sedlarević Zorić, Ana and Vidović, Marija and Veljović Jovanović, Sonja", year = "2022", abstract = "Three varieties of basil (Ocimum x citriodorum, Ocimum basilicum var. Genovese and Ocimumbasilicum var. purpurascens) were used to examine the effect of different PAR intensities (100, 400and 1400 µmol photons m-2s-1), as well as different UV-B/PAR ratios, on leaf phenolics accumulation, and components of the ascorbate-glutathione cycle. Phenolic compounds represent themost abundant class of secondary metabolites, and their function in plants involves protectionagainst numerous abiotic stresses, role in growth and development, flowering, reproduction andseed dispersion. A preferential accumulation of HCAs over Flav, induction of class III POD activityand decreased ascorbate content were characteristic responses to pro-oxidative effect of the highUV-B/PAR ratio in all three basil varieties. The most remarkable result was the lack of accumulationof epidermal UV absorbing substances, which appeared to be a crucial photoprotective mechanism in sunlight. The contrasting effect of ecologically relevant UV-B radiation on basil plants,pro-oxidative vs. acclimative, was determined by the quality and intensity of the background light.Acclimation of basil to high light comprises a number of processes, among which are the accumulation of epidermal flavonoids and total leaf phenolics, antioxidant response (increase in Asc andGSH) and lack of downregulation of PSII upon increasing light intensity. Among varieties that weused as model system in this study, purple basil, with the highest constitutive amount of anthocyanidins, showed the least induction of epidermal flavonoids and lack of light effect upon transferfrom initial 50 to 250 µmol photons m-2s-1.", publisher = "Serbian Plant Physiology Society Institute for Biological Research “Siniša Stanković” – National Institute of Republic of Serbia, University of Belgrade Faculty of Biology, University of Belgrade", journal = "4th International Conference on Plant Biology and 23rd SPPS Meeting", title = "Distinctive regulation of different phenolics biosynthesis by high light and UV-B in three basil varieties", pages = "43", url = "https://hdl.handle.net/21.15107/rcub_imagine_1841" }
Milić Komić, S., Živanović, B., Sedlarević Zorić, A., Vidović, M.,& Veljović Jovanović, S.. (2022). Distinctive regulation of different phenolics biosynthesis by high light and UV-B in three basil varieties. in 4th International Conference on Plant Biology and 23rd SPPS Meeting Serbian Plant Physiology Society Institute for Biological Research “Siniša Stanković” – National Institute of Republic of Serbia, University of Belgrade Faculty of Biology, University of Belgrade., 43. https://hdl.handle.net/21.15107/rcub_imagine_1841
Milić Komić S, Živanović B, Sedlarević Zorić A, Vidović M, Veljović Jovanović S. Distinctive regulation of different phenolics biosynthesis by high light and UV-B in three basil varieties. in 4th International Conference on Plant Biology and 23rd SPPS Meeting. 2022;:43. https://hdl.handle.net/21.15107/rcub_imagine_1841 .
Milić Komić, Sonja, Živanović, Bojana, Sedlarević Zorić, Ana, Vidović, Marija, Veljović Jovanović, Sonja, "Distinctive regulation of different phenolics biosynthesis by high light and UV-B in three basil varieties" in 4th International Conference on Plant Biology and 23rd SPPS Meeting (2022):43, https://hdl.handle.net/21.15107/rcub_imagine_1841 .