Exogenous phytohormones increase the accumulation of health-promoting metabolites, and influence the expression patterns of biosynthesis related genes and biological activity in Chinese cabbage (Brassica rapa spp. pekinensis)

Thiruvengadam, Muthu; Kim, Seung Hyun; Chung, Ill‐Min

doi:10.1016/j.scienta.2015.07.007

Cited by 52 publications

(39 citation statements)

References 50 publications

(69 reference statements)

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“…Furthermore, it appeared that SA had a more significant effect in increasing the production of anthocyanins as compared to other phenolic compounds, like flavonoids, because SA treatments had no significant effect on flavonoid production. In other words, other mechanisms besides PAL are probably involved in the production of anthocyanins as shown in numerous reports concerning the effect of SA on increasing the expression of enzymes such as chalcone synthase (CHS) and chalcone isomerase (CHI), which are further downstream of the cascade . In the present research, although enzymes related to biosynthesis of anthocyanins were not specifically addressed, the increases in the concentrations of anthocyanins in this case were probably due to the effect of SA on the expression and activity of PAL and other enzymes related to the biosynthesis of these metabolites.…”

Section: Discussionmentioning

confidence: 54%

“…In other words, other mechanisms besides PAL are probably involved in the production of anthocyanins as shown in numerous reports concerning the effect of SA on increasing the expression of enzymes such as chalcone synthase (CHS) and chalcone isomerase (CHI), which are further downstream of the cascade. 42 In the present research, although enzymes related to biosynthesis of anthocyanins were not specifically addressed, the increases in the concentrations of anthocyanins in this case were probably due to the effect of SA on the expression and activity of PAL and other enzymes related to the biosynthesis of these metabolites. After véraison, PAL activity mostly focuses on the production of anthocyanin especially in red cultivars than other phenolics.…”

Section: Discussionmentioning

confidence: 56%

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Pre‐véraison treatment of salicylic acid to enhance anthocyanin content of grape (Vitis vinifera L.) berries

et al. 2019

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BACKGROUND Grape berries produce significant amounts of phenolic compounds. These are an essential qualitative factor due to their nutritional value and effect on berry color and texture. Salicylic acid (SA) and its derivatives usually lead to enhancement of phenolic content in plant tissues. The present study was conducted to evaluate the effect of different levels of SA (0.0, 50.0, 100.0, and 200.0 mM) on the production of phenolic compounds and the derivatives (anthocyanin and flavonoid) in the grape berries, with emphasis on malvidin‐3‐O‐β glucoside as a regular anthocyanin in red grapes. RESULT The results showed that total phenolics content were significantly enhanced in SA‐treated (100.0 and 200.0 mM) berries compared to untreated ones. Salicylic acid treatment at all concentrations considerably improved the anthocyanin content in the berries and, compared with untreated berries, the accumulation of malvidin‐3‐O‐β glucoside was higher in SA‐treated fruits. In particular, the 200.0 mM concentration caused approximately two times more malvidin‐3‐O‐β glucoside than the control. The 2,2‐diphenyl‐1‐picrylhydrazyl (DPPH) scavenging capacity of the fruits treated with SA were significantly higher than those of the untreated berries. The activity of phenylalanine ammonia‐lyase (PAL) in SA treated fruits significantly increased as compared with the untreated clusters. CONCLUSION A general evaluation of the current results leads us to the conclusion that SA is a suitable and recommendable treatment for improving and increasing the phenolic and antioxidant capacity of grape berries. Spraying grape berries at pre‐véraison stage with SA could therefore be a convenient strategy to increase quality and nutritional value of grape berries considerably. © 2019 Society of Chemical Industry

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Section: Discussionmentioning

confidence: 54%

Section: Discussionmentioning

confidence: 56%

Pre‐véraison treatment of salicylic acid to enhance anthocyanin content of grape (Vitis vinifera L.) berries

et al. 2019

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“…Treatments with SA have been shown to have an effect on indole, aromatic, and aliphatic GLSs, as well as increasing the total amount of GLSs in broccoli or turnip plants . Thiruvengadam et al .…”

Section: Discussionmentioning

confidence: 99%

“…37,38 Treatments with SA have been shown to have an effect on indole, aromatic, and aliphatic GLSs, as well as increasing the total amount of GLSs in broccoli or turnip plants. 29,39 Thiruvengadam et al 29 found that a 100 μmol L −1 SA spray applied to turnip plants produced different responses among GLSs of the same type. For example, GB and MGB increased whereas NGB and HGB declined.…”

Section: Discussionmentioning

confidence: 99%

Use of elicitation in the cultivation of Bimi® for food and ingredients

et al. 2020

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BACKGROUND Cruciferous foods rich in health‐promoting metabolites are of particular interest to consumers as well as being a good source of bioactives‐enriched ingredients. Several elicitors have been used to stimulate the biosynthesis and accumulation of secondary metabolites in foods; however, little is known about the response of new hybrid varieties, such as Bimi®, under field‐crop production conditions. Therefore, this study was designed to evaluate the effect of salicylic acid (200 μmol L−1, SA), methyl jasmonate (100 μmol L−1, MeJA), and their combination on Bimi plant organs (inflorescences and aerial vegetative tissues – stems and leaves). For this, the composition of the glucosinolates present in the tissues was evaluated. Also, aqueous extracts of the plant material, obtained with different times of extraction with boiling water, were studied. RESULTS The results indicate that the combined treatment (SA + MeJA) significantly increased the content of glucosinolates in the inflorescences and that MeJA was the most effective elicitor in leaves. Regarding the aqueous extracts, the greatest amount of glucosinolates was extracted at 30 min – except for the leaves elicited with MeJA, for which 15 min was optimal. CONCLUSION The elicitation in the field enriched leaves in glucobrassicin (GB), 4‐methoxyglucobrassicin (MGB), and neoglucobrassicin (NGB) and stems and inflorescences in glucoraphanin, 4‐hydroxyglucobrassicin, GB, MGB, and NGB. In this way, this enhanced vegetable material favored the presence of bioactives in the extracts, which is of great interest regarding enriched foods and ingredients with added value obtained from them. © 2019 Society of Chemical Industry

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“…Phytohormones are essential regulating substances for plant growth and development, and they are also are triggers for the expression of adversity resistance genes (Thiruvengadam et al, 2015). Among phytohormones, abscisic acid (ABA) is a vital signalling molecule in plants for adapting to stresses such as drought, high salinity and UV-B radiation (Tossi et al, 2012;Amjad et al, 2014;Yang et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

ABA alleviated soybean seedling stress exposed to UV-C radiation

et al. 2020

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In order to understand the roles of abscisis acid in soybean exposed to UV-C radiation, soybean seedlings were exposed to UV-C radiation and ABA was applied. The chlorophyll content, active oxygen metabolism and flavonoids content of soybean seedlings were investigated. The present study revealed that UV-C radiation significantly attenuated the chlorophyll content and suppressed PSII activity. It was observed that the contents of H 2 O 2 , malondialdehyde and O 2 were markedly increased, and the activities of antioxidant enzymes such as superoxide dismutase, peroxidase and catalase were enhanced, so were the flavonoids content, whereas the seedling height and biomass were significantly reduced. ABA application improved the activities of superoxide dismutase, peroxidase, catalase and the contents of flavonoids, decreased the contents of H 2 O 2 , MDA and O 2-, and also increased the chlorophyll content and enhanced PSII performance, thus enhancing biomass accumulation. The results suggested that ABA alleviated UV-C damage to soybean seedlings by reducing ROS generation and enhancing antioxidase activity. The isoflavones daidzin and genistein were significantly responsive to UV-C.

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Exogenous phytohormones increase the accumulation of health-promoting metabolites, and influence the expression patterns of biosynthesis related genes and biological activity in Chinese cabbage (Brassica rapa spp. pekinensis)

Cited by 52 publications

References 50 publications

Pre‐véraison treatment of salicylic acid to enhance anthocyanin content of grape (Vitis vinifera L.) berries

Pre‐véraison treatment of salicylic acid to enhance anthocyanin content of grape (Vitis vinifera L.) berries

Use of elicitation in the cultivation of Bimi® for food and ingredients

ABA alleviated soybean seedling stress exposed to UV-C radiation

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