Isoflavone accumulation and the metabolic gene expression in response to persistent UV-B irradiation in soybean sprouts

Lim, You Jin; Jeong, Hee Jeong; Gil, Chan Saem; Kwon, Soon Jae; Na, Jong Kuk; Lee, Chanhui; Eom, Seok Hyun

doi:10.1016/j.foodchem.2019.125376

Cited by 32 publications

(29 citation statements)

References 28 publications

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“…Other pigments like xanthophyll and anthocyanin are also required for plants to safeguard them during UV-B stress (Casati and Walbot 2003). Isoflavonoid biosynthetic genes GmCHS6, GmCHS7, and GmCHS8 related to chalcone synthase were upregulated under UV-B in germination stages of soybean seeds (Lim et al 2020). Low molecular weight antioxidants such as ascorbic acid, phenols, flavonoids, glutathione, carotenoids, and so on, and high molecular weight enzymes such as superoxide dismutase (SOD), ascorbate peroxidase (APX), peroxidase (POD), catalase (CAT) also play important roles in UV-B stress mitigation (Mittler 2002).…”

Section: Changes In Primary and Secondary Metabolitesmentioning

confidence: 99%

Light signaling and UV‐B‐mediated plant growth regulation

Yadav

Singh

Lingwan

et al. 2020

JIPB

167

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Light plays an important role in plants’ growth and development throughout their life cycle. Plants alter their morphological features in response to light cues of varying intensity and quality. Dedicated photoreceptors help plants to perceive light signals of different wavelengths. Activated photoreceptors stimulate the downstream signaling cascades that lead to extensive gene expression changes responsible for physiological and developmental responses. Proteins such as ELONGATED HYPOCOTYL5 (HY5) and CONSTITUTIVELY PHOTOMORPHOGENIC 1 (COP1) act as important factors which modulate light‐regulated gene expression, especially during seedling development. These factors function as central regulatory intermediates not only in red, far‐red, and blue light pathways but also in the UV‐B signaling pathway. UV‐B radiation makes up only a minor fraction of sunlight, yet it imparts many positive and negative effects on plant growth. Studies on UV‐B perception, signaling, and response in plants has considerably surged in recent times. Plants have developed different strategies to use UV‐B as a developmental cue as well as to withstand high doses of UV‐B radiation. Plants’ responses to UV‐B are an integration of its cross‐talks with both environmental factors and phytohormones. This review outlines the current developments in light signaling with a major focus on UV‐B‐mediated plant growth regulation.

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Section: Changes In Primary and Secondary Metabolitesmentioning

confidence: 99%

Light signaling and UV‐B‐mediated plant growth regulation

Yadav

Singh

Lingwan

et al. 2020

JIPB

167

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“…GmCHS7 and GmCHS8 show strong homology with LjCHS5 (Lj1g3v2626200.1), LjCHS8 (Lj0g3v0129339.1) LjCHS9 (Lj2g3v2124320.1) and LjCHS11 (Lj2g3v2124320.2), whereas GmCHS6 is homologous to LjCHS12 (Lj4g3v2574990.1). However, Lotus isoflavonoids are produced mainly via isoliquiritigenin, the daidzein and genistein (and their derivates) found in soybean are produced from isoliquiritigenin and naringenin chalcone, respectively [ 41 , 48 ] ( Figure 1 ). Therefore, the regulation pattern of chalcone synthases in soybean might be more complex.…”

Section: Flavonoid and Isoflavonoid Biosynthetic Pathways In mentioning

confidence: 99%

Flavonoids and Isoflavonoids Biosynthesis in the Model Legume Lotus japonicus; Connections to Nitrogen Metabolism and Photorespiration

García‐Calderón

Pérez-Delgado

Paľove-Balang

et al. 2020

Plants

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Phenylpropanoid metabolism represents an important metabolic pathway from which originates a wide number of secondary metabolites derived from phenylalanine or tyrosine, such as flavonoids and isoflavonoids, crucial molecules in plants implicated in a large number of biological processes. Therefore, various types of interconnection exist between different aspects of nitrogen metabolism and the biosynthesis of these compounds. For legumes, flavonoids and isoflavonoids are postulated to play pivotal roles in adaptation to their biological environments, both as defensive compounds (phytoalexins) and as chemical signals in symbiotic nitrogen fixation with rhizobia. In this paper, we summarize the recent progress made in the characterization of flavonoid and isoflavonoid biosynthetic pathways in the model legume Lotus japonicus (Regel) Larsen under different abiotic stress situations, such as drought, the impairment of photorespiration and UV-B irradiation. Emphasis is placed on results obtained using photorespiratory mutants deficient in glutamine synthetase. The results provide different types of evidence showing that an enhancement of isoflavonoid compared to standard flavonol metabolism frequently occurs in Lotus under abiotic stress conditions. The advance produced in the analysis of isoflavonoid regulatory proteins by the use of co-expression networks, particularly MYB transcription factors, is also described. The results obtained in Lotus japonicus plants can be also extrapolated to other cultivated legume species, such as soybean, of extraordinary agronomic importance with a high impact in feeding, oil production and human health.

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“…However, the effect of radiation in seedling cellular processes and metabolite biosynthesis can be positive or negative depending on the dose and duration of application [ 99 ]. Lim et al studied how ultraviolet B (UVB) mediates isoflavone accumulation and oxidative–antioxidant system responses in germinating soybeans and observed that the isoflavone content decreased at the UVB of 2 W m −2 while the highest increase was observed at the intensity of 1 and 2 W m −2 [ 100 ]. Therefore, to use irradiation as a bioactive compound elicitor, sprout developers should understand the principle of seed and seedling responses to irradiation.…”

Section: Recent Novel Approach For Enhancing Biological Activities Of Sproutsmentioning

confidence: 99%

“…Therefore, to use irradiation as a bioactive compound elicitor, sprout developers should understand the principle of seed and seedling responses to irradiation. Radiation is also known to improve enzymatic activities such as PAL involved in the synthesis of phytochemicals during the de novo process [ 100 ]. Light radiation led to a higher expression of phenylalanine ammonia-lyase (PAL) in germinated flaxseeds significantly improving phenolic acid levels [ 101 ] and a higher antioxidant capacity in sweetcorn [ 102 ].…”

Section: Recent Novel Approach For Enhancing Biological Activities Of Sproutsmentioning

confidence: 99%

Edible Plant Sprouts: Health Benefits, Trends, and Opportunities for Novel Exploration

et al. 2021

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The consumption of plant sprouts as part of human day-to-day diets is gradually increasing, and their health benefit is attracting interest across multiple disciplines. The purpose of this review was to (a) critically evaluate the phytochemicals in selected sprouts (alfalfa, buckwheat, broccoli, and red cabbage), (b) describe the health benefits of sprouts, (c) assess the recent advances in sprout production, (d) rigorously evaluate their safety, and (e) suggest directions that merit special consideration for further novel research on sprouts. Young shoots are characterized by high levels of health-benefitting phytochemicals. Their utility as functional ingredients have been extensively described. Tremendous advances in the production and safety of sprouts have been made over the recent past and numerous reports have appeared in mainstream scientific journals describing their nutritional and medicinal properties. However, subjects such as application of sprouted seed flours in processed products, utilizing sprouts as leads in the synthesis of nanoparticles, and assessing the dynamics of a relationship between sprouts and gut health require special attention for future clinical exploration. Sprouting is an effective strategy allowing manipulation of phytochemicals in seeds to improve their health benefits.

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Isoflavone accumulation and the metabolic gene expression in response to persistent UV-B irradiation in soybean sprouts

Cited by 32 publications

References 28 publications

Light signaling and UV‐B‐mediated plant growth regulation

Light signaling and UV‐B‐mediated plant growth regulation

Flavonoids and Isoflavonoids Biosynthesis in the Model Legume Lotus japonicus; Connections to Nitrogen Metabolism and Photorespiration

Edible Plant Sprouts: Health Benefits, Trends, and Opportunities for Novel Exploration

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