Effects of <scp>UV</scp> radiation on transcript and metabolite accumulation are dependent on monochromatic light background in cucumber

Palma, Carolina Falcato Fialho; Castro-Alves, Victor Costa; Rosenqvist, Eva; Ottosen, Carl‐Otto; Strid, Åke; Morales, Luis Orlando

doi:10.1111/ppl.13551

Cited by 13 publications

(7 citation statements)

References 83 publications

(148 reference statements)

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“…Light is a crucial external factor that affects growth and development, photomorphogenesis and nutrient synthesis during plant germination (Palma et al 2021). Monochromatic lights are considered as an effective technique of enhancing plant growth and metabolite accumulation (such as polyphenols) at a lower energy cost .…”

Section: Introductionmentioning

confidence: 99%

Effect of light quality on polyphenol biosynthesis in three varieties of mung bean sprouts with different color seed coats

et al. 2022

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Mung bean (Vigna radiata) sprouts are a popular sprouting vegetable all over the world and are an excellent source of polyphenols with high antioxidant activity. This study investigated the effects of light qualities on the kinetic changes and metabolic regulation mechanism of light signal mediating polyphenols in three mung bean sprout cultivars. Experimental results showed that white light particularly enhanced the contents of caffeic acid, rutin and delphinidin 3-glucoside. Interestingly, ferulic acid and vitexin responded selectively to blue light and red light, severally. Most genes involved in polyphenol biosynthesis were activated under different light quality conditions, resulting in an overaccumulation of phenylpropanoids. Pearson correlation analysis showed that PAL, F3H, F3'H and F3'5'H expression correlated highly with rutin, whereas ANS expression paralleled anthocyanin biosynthesis. Moreover, MYB111, MYB3, MYB4, MYB1 and MYC2 were critical regulators of polyphenol biosynthesis in mung bean sprouts. These changes were likely due to the changes in expression of the photoreceptor genes CRY-D, PHOT2, PHYE and light response genes (PIF3 and HY5). Our results provide insights into polyphenol biosynthesis in sprouts and microgreens. Key MessagesLight quality greatly affected the expression of polyphenol-related and light signaling TFs accompanied by the activation of 16 structural genes in polyphenol synthesis and subsequently resulted in the massive accumulation of polyphenols.

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Section: Introductionmentioning

confidence: 99%

Effect of light quality on polyphenol biosynthesis in three varieties of mung bean sprouts with different color seed coats

et al. 2022

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“…Changes in spectral quality result in quantitative and qualitative changes to PheC profiles and, consequently, altered states of photoprotection [ 22 ]. There is increasing evidence that blue-light-induced accumulation of PheCs is a common plant response, as it was observed not only for Hordeum vulgare [ 49 ], but also in several other plant species: Lactuca sativa [ 50 , 51 ], Chrysanthemum morifolium [ 52 ], Pisum sativum [ 53 ], Stevia rebaudiana [ 54 ], Eruca sativa [ 55 ], and Cucumis sativus [ 56 ]. A study on Arabidopsis mutants with impaired CRY1 (blue-light-sensing) function showed significantly lower resistance against UV-B radiation due to the limited accumulation of UV-shielding compounds, but also lower catalase and peroxidase enzyme activity [ 57 ].…”

Section: Discussionmentioning

confidence: 99%

Regulation of Phenolic Compound Production by Light Varying in Spectral Quality and Total Irradiance

Pech

Volná

Hunt

et al. 2022

IJMS

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Photosynthetically active radiation (PAR) is an important environmental cue inducing the production of many secondary metabolites involved in plant oxidative stress avoidance and tolerance. To examine the complex role of PAR irradiance and specific spectral components on the accumulation of phenolic compounds (PheCs), we acclimated spring barley (Hordeum vulgare) to different spectral qualities (white, blue, green, red) at three irradiances (100, 200, 400 µmol m−2 s−1). We confirmed that blue light irradiance is essential for the accumulation of PheCs in secondary barley leaves (in UV-lacking conditions), which underpins the importance of photoreceptor signals (especially cryptochrome). Increasing blue light irradiance most effectively induced the accumulation of B-dihydroxylated flavonoids, probably due to the significantly enhanced expression of the F3′H gene. These changes in PheC metabolism led to a steeper increase in antioxidant activity than epidermal UV-A shielding in leaf extracts containing PheCs. In addition, we examined the possible role of miRNAs in the complex regulation of gene expression related to PheC biosynthesis.

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“…It is now well-established that the concentrations of a wide array of natural plant chemicals are modified by UV radiation [ 304 – 307 ] and these changes in chemical composition can have positive and negative effects on food quality. There is abundant research demonstrating that exposure to modest levels of UV radiation can improve food quality by enhancing crop flavour [ 308 ], taste [ 309 ], colour [ 310 ], nutritional content [ 311 – 314 ], and pharmaceutical content [ 315 – 317 ] in various plants. Given that the intake of fruits and vegetables of many consumers is well below recommended levels [ 318 ], the higher nutritional content of crops exposed to UV radiation may generate long-term health benefits.…”

Section: Effects On Agriculture and Food Productionmentioning

confidence: 99%

Interactive effects of changes in UV radiation and climate on terrestrial ecosystems, biogeochemical cycles, and feedbacks to the climate system

Barnes

Robson

Zepp

et al. 2023

Photochem Photobiol Sci

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Terrestrial organisms and ecosystems are being exposed to new and rapidly changing combinations of solar UV radiation and other environmental factors because of ongoing changes in stratospheric ozone and climate. In this Quadrennial Assessment, we examine the interactive effects of changes in stratospheric ozone, UV radiation and climate on terrestrial ecosystems and biogeochemical cycles in the context of the Montreal Protocol. We specifically assess effects on terrestrial organisms, agriculture and food supply, biodiversity, ecosystem services and feedbacks to the climate system. Emphasis is placed on the role of extreme climate events in altering the exposure to UV radiation of organisms and ecosystems and the potential effects on biodiversity. We also address the responses of plants to increased temporal variability in solar UV radiation, the interactive effects of UV radiation and other climate change factors (e.g. drought, temperature) on crops, and the role of UV radiation in driving the breakdown of organic matter from dead plant material (i.e. litter) and biocides (pesticides and herbicides). Our assessment indicates that UV radiation and climate interact in various ways to affect the structure and function of terrestrial ecosystems, and that by protecting the ozone layer, the Montreal Protocol continues to play a vital role in maintaining healthy, diverse ecosystems on land that sustain life on Earth. Furthermore, the Montreal Protocol and its Kigali Amendment are mitigating some of the negative environmental consequences of climate change by limiting the emissions of greenhouse gases and protecting the carbon sequestration potential of vegetation and the terrestrial carbon pool. Graphical abstract

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Effects of UV radiation on transcript and metabolite accumulation are dependent on monochromatic light background in cucumber

Cited by 13 publications

References 83 publications

Effect of light quality on polyphenol biosynthesis in three varieties of mung bean sprouts with different color seed coats

Effect of light quality on polyphenol biosynthesis in three varieties of mung bean sprouts with different color seed coats

Regulation of Phenolic Compound Production by Light Varying in Spectral Quality and Total Irradiance

Interactive effects of changes in UV radiation and climate on terrestrial ecosystems, biogeochemical cycles, and feedbacks to the climate system

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