Concentration of hinokinin, phenolic acids and flavonols in leaves and stems of Hydrocotyle leucocephala is differently influenced by PAR and ecologically relevant UV-B level

Müller, Viola Franziska; Lankes, Christa; Albert, Andreas; Winkler, Jana Barbro; Zimmermann, Benno F.; Noga, Georg; Hunsche, Maurício

doi:10.1016/j.jplph.2014.09.003

Cited by 10 publications

(8 citation statements)

References 71 publications

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“…& Schltdl.) [ 205 ] and Asiatic pennywort ( Centella asiatica L.) [ 211 ], but HL decreased the total kaempferol concentration, leading to a higher quercetin/kaempferol ratio, as observed in plants grown under UVB alone [ 205 ]. Similarly, all saponins accumulated under HL, although this was not necessarily dependent on ambient or supplemental UVB levels.…”

Section: Interactive Effects Of Environmental Factors On Plant Second...mentioning

confidence: 99%

“…Similarly, all saponins accumulated under HL, although this was not necessarily dependent on ambient or supplemental UVB levels. Flavonols and anthocyanins were increased under HL and UVB, along with accumulation of the carotenoid zeaxanthin under HL and DS, both of which protect leaves, either through prevention of harmful light penetration or irreversible chloroplast damage [ 205 ].…”

Section: Interactive Effects Of Environmental Factors On Plant Second...mentioning

confidence: 99%

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Environmental Factors Regulate Plant Secondary Metabolites

Qaderi

Martel

Strugnell

2023

Plants

107

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Abiotic environmental stresses can alter plant metabolism, leading to inhibition or promotion of secondary metabolites. Although the crucial roles of these compounds in plant acclimation and defense are well known, their response to climate change is poorly understood. As the effects of climate change have been increasing, their regulatory aspects on plant secondary metabolism becomes increasingly important. Effects of individual climate change components, including high temperature, elevated carbon dioxide, drought stress, enhanced ultraviolet-B radiation, and their interactions on secondary metabolites, such as phenolics, terpenes, and alkaloids, continue to be studied as evidence mounting. It is important to understand those aspects of secondary metabolites that shape the success of certain plants in the future. This review aims to present and synthesize recent advances in the effects of climate change on secondary metabolism, delving from the molecular aspects to the organismal effects of an increased or decreased concentration of these compounds. A thorough analysis of the current knowledge about the effects of climate change components on plant secondary metabolites should provide us with the required information regarding plant performance under climate change conditions. Further studies should provide more insight into the understanding of multiple environmental factors effects on plant secondary metabolites.

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Section: Interactive Effects Of Environmental Factors On Plant Second...mentioning

confidence: 99%

Section: Interactive Effects Of Environmental Factors On Plant Second...mentioning

confidence: 99%

Environmental Factors Regulate Plant Secondary Metabolites

Qaderi

Martel

Strugnell

2023

Plants

107

View full text Add to dashboard Cite

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“…Moreover, the accumulation of phenolic compounds in young organs would increase their cold and desiccation tolerance [56], as well as their defense against herbivores [57], counteracting in our case their higher softness and attractiveness, derived from their higher WC. However, inverse results (UV radiation increased phenolic compounds in old leaves) were obtained in other tracheophytes [15][16][17], and in Citrus the flavonoid content was increased by UV-B radiation in both young and old leaves [58]. Thus, in tracheophytes, the effect of the developmental stage on the induction of phenolic compounds by UV radiation depends on the species considered.…”

Section: Effects Of Developmental Stagementioning

confidence: 95%

“…In this regard, the results obtained have been diverse. Young leaves may accumulate higher amounts of phenolic compounds than old leaves when exposed to UV radiation [11][12][13][14], although in some cases flavonoid accumulation can be induced by UV in old leaves [15][16][17]. This diversity of results can be due, among other factors, to the species and the compound considered.…”

Section: Introductionmentioning

confidence: 99%

Developmental Stage Determines the Accumulation Pattern of UV-Absorbing Compounds in the Model Liverwort Marchantia polymorpha subsp. ruderalis under Controlled Conditions

Soriano

Del-Castillo-Alonso

Monforte

et al. 2021

Plants

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The liverwort Marchantia polymorpha subsp. ruderalis is an emerging model plant, and some data are available on its responses to ultraviolet (UV) radiation. However, it is unknown if the developmental stage of the thalli modulates the effects of UV radiation on the contents of potentially protecting phenolic compounds. To fill this gap, liverwort samples were exposed or non-exposed to UV radiation for 38 days under controlled conditions, using three developmental stages: gemmae (G), one-month thalli (T1), and two-month thalli (T2). Then, the bulk level of methanol-soluble UV-absorbing compounds and the contents of six flavones (apigenin and luteolin derivatives) were measured. The UV responsiveness decreased with thallus age: G and T1 plants were the most UV-responsive and showed a strong increase in all the variables, with G plants more responsive than T1 plants. In UV-exposed T2 plants, only apigenin derivatives increased and more modestly, probably due to a lower acclimation capacity. Nevertheless, the thalli became progressively tougher due to a decreasing water content, representing a possible structural protection against UV. In UV-exposed plants, the temporal patterns of the accumulation of phenolic compounds were compound-specific. Most compounds decreased with thallus age, but di-glucuronide derivatives showed a bell-shaped pattern, with T1 plants showing the highest contents. A Principal Components Analysis (PCA) ordination of the different samples summarized the results found. The patterns described above should be taken into account to select thalli of an adequate developmental stage for experiments investigating the induction of phenolic compounds by UV radiation.

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“…However, individual phenylpropanoids in plants were found to respond differently to UV-B [8,9,22,24]. For instance, in the leaves of Hydrocotyle leucocephala, quercetin derivatives accumulated under exposure to UV-B, thus reducing the concentrations of kaempferol glycosides and chlorogenic acid [20]. The flavonoid profile of broccoli sprouts was also modified under exposure to UV-B irradiation [21].…”

Section: Introductionmentioning

confidence: 99%

UV-B radiation increases anthocyanin levels in cotyledons and inhibits the growth of common buckwheat seedlings

Dębski¹,

Szwed²,

Wiczkowski³

et al. 2016

Acta Biologica Hungarica

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The impact of short-term UV-B treatment on the content of individual flavonoids and photosynthetic pigments in cotyledons and the growth of common buckwheat (Fagopyrum esculentum Moench) seedlings was investigated. Seeds of four common buckwheat cultivars were germinated in darkness over a period of 4 days and acclimatized for 2 days under a 16/8 h light/dark photoperiod at 24/18 °C day/night, and exposure to 100-120 μmol • m -2 • s -1 of photosynthetically active radiation (PAR). Seedlings were divided into three batches, including two batches subjected to different doses of UV-B (5 W • m -2 and 10 W • m -2 , one hour per day) for 5 days, and a control group exposed to PAR only. Exposure to UV-B increased anthocyanin levels in the cotyledons of all examined cultivars, it inhibited hypocotyl elongation, but did not affect the content of photosynthetic pigments. Flavone concentrations increased in cv. Red Corolla and Kora, remained constant in cv. Panda and decreased in cv. Hruszowska. Exposure to UV-B decreased rutin levels in cv. Hruszowska, but not in the remaining cultivars. Cultivars Hruszowska, Panda and Kora appeared to be less resistant to UV-B than Red Corolla. Higher resistance to UV-B radiation in Red Corolla can probably be attributed to its higher content of anthocyanins and rutin in comparison with the remaining cultivars.

show abstract

Concentration of hinokinin, phenolic acids and flavonols in leaves and stems of Hydrocotyle leucocephala is differently influenced by PAR and ecologically relevant UV-B level

Cited by 10 publications

References 71 publications

Environmental Factors Regulate Plant Secondary Metabolites

Environmental Factors Regulate Plant Secondary Metabolites

Developmental Stage Determines the Accumulation Pattern of UV-Absorbing Compounds in the Model Liverwort Marchantia polymorpha subsp. ruderalis under Controlled Conditions

UV-B radiation increases anthocyanin levels in cotyledons and inhibits the growth of common buckwheat seedlings

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