Growth and bioactive compounds as affected by irradiation with various spectrum of light-emitting diode lights in dropwort

Jeon, Yu-Min; Son, Ki-Ho; Kim, Sang-Min; Oh, Myung‐Min

doi:10.1007/s13580-017-0354-3

Cited by 18 publications

(11 citation statements)

References 35 publications

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“…The concentrations of flavonoids and total phenolics in the perennial herb dropwort (Oenanthe stolonifera Wall. ex DC) exposed to blue light were significantly higher than in the plants exposed to green light (Jeon et al, 2017). Other results showed that monochromatic blue as well as red light increased total phenolic compounds, flavonoids and anthocyanins contents in green perilla (Perilla frutescens L. Britton) and Chinese foxglove (Rehmannia glutinosa Libos.)…”

Section: Discussionmentioning

confidence: 91%

White, blue and red LED lighting on growth, morphology and accumulation of flavonoid compounds in leafy greens

Matysiak

Kowalski

2019

Zemdirbyste-Agriculture

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Growth, morphology and accumulation of flavonoid compounds in green-and purple-leaved sweet basil (Ocimum basilicum L.), lamb's lettuce (Valerianella locusta (L.) Laterr.) and garden rocket (Eruca sativa L.) grown in a greenhouse under natural day light supplemented with white, blue (440 nm) and red (660 nm) light-emitting diodes (LEDs), all at 130 µmol m -2 s -1 , were studied in winter time. Under white and red LED lights, fresh weights of above-ground parts of lamb's lettuce and garden rocket were the highest, whereas under blue light they were the lowest, in comparison to the control (natural light). For green-and purple-leaved basil no significant differences in biomass production were observed when different light spectra qualities were applied. Supplementation of daily light with blue light resulted in more compact growth of green-leaved basil, as compared to plants grown under natural light and those supplemented with white and red lights. A non-destructive method using an optical sensor was used for evaluation of flavonol, anthocyanin and chlorophyll indexes in plants. Blue light led to significantly increased flavonol index in both green-and purple-leaved basil, lamb's lettuce and garden rocket plants.

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Section: Discussionmentioning

confidence: 91%

White, blue and red LED lighting on growth, morphology and accumulation of flavonoid compounds in leafy greens

Matysiak

Kowalski

2019

Zemdirbyste-Agriculture

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“…sprouts [80], and strawberry fruit [81]. The reason is that high blue light in LED-mix greatly contributes to the increase of the secondary metabolites such as phenols and flavonoids as compared with other treatments [26, 82, 83]. More studies suggested that blue light should be recommended as a supplementary light source for accumulation of phenols and flavonoids [84, 85].…”

Section: Discussionmentioning

confidence: 99%

Supplementary Light Source Affects Growth, Metabolism, and Physiology ofAdenophora triphylla(Thunb.) A.DC. Seedlings

Liu

Ren

Jeong

2019

BioMed Research International

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Adenophora triphylla(Thunb.) A.DC., a well-known herbaceous medicinal species, has been reported to protect against human obesity, cancer, and inflammation. Supplementary lighting is a practical strategy to improve crop quality, especially at a propagation stage. However, there has been no study available on the optimal supplementary light source for the commercial production ofA. triphyllaseedlings. In this study, plug seedlings were cultivated in a greenhouse for four weeks under an average daily light intensity of 490μmol·m−2·s−1PPFD coming from the sun and a supplemental lighting (16 h per day) at 120μmol·m−2·s−1PPFD provided by high pressure sodium (HPS), metal halide (MH), far-red (FR) light, white LED (red: green: blue = 2:4:3, LED-w), or mixed (red: green: blue = 4:1:4) LED (LED-mix). The results showed that LED-mix, with a higher percentage of red and blue light, substantially promoted seedling growth compared to other treatments by increasing stem diameter, biomass, specific leaf weight, and root to shoot ratio. The LED-mix also promoted accumulation of soluble sugar, starch, and chlorophyll in the tissue and increased contents of total phenols and flavonoids. Moreover, stomata density and pore area per leaf area under the LED-mix were remarkably greater than those under other treatments. Furthermore, the Western blot analysis revealed that the expression of photosynthetic protein, D1, was notably enhanced by the LED-mix as compared with other light sources. In addition, the LED-mix alleviated the oxidative damage of seedlings by improving enzymatic and nonenzymatic antioxidant systems. Collectively, these results suggest that the LED-mix was the optimal supplementary light source for the production of highest qualityA. triphyllaseedlings.

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“…[ 135 ], baikal skullcap ( Scutellaria baicalensis ) [ 138 ], and different microgreens [ 109 ]. In contrast, some other studies showed that RL was more efficient than BL in increasing the carotenoids or chl contents [ 96 , 139 , 140 , 141 ], even though exposure to RL notably affects chl contents by down-regulating the tetrapyrrole precursor ALA [ 142 ]…”

Section: Led Effects On the Antioxidants And Phytonutrients Of Plamentioning

confidence: 99%

“…Overall, most of the studies listed in Table 4 showed that the use of mixtures such as RL+BL [ 96 , 142 , 143 , 144 , 145 , 146 ] or fluorescent WL + RL or BL [ 147 , 148 ] has proven to be more efficient compared to monochromatic treatments. As regards GL and YL, very few studies report their use, with little or no significant results [ 56 , 139 , 142 , 149 ].…”

Section: Led Effects On the Antioxidants And Phytonutrients Of Plamentioning

confidence: 99%

Challenges and Opportunities of Light-Emitting Diode (LED) as Key to Modulate Antioxidant Compounds in Plants. A Review

et al. 2020

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Plant antioxidants are important compounds involved in plant defense, signaling, growth, and development. The quantity and quality of such compounds is genetically driven; nonetheless, light is one of the factors that strongly influence their synthesis and accumulation in plant tissues. Indeed, light quality affects the fitness of the plant, modulating its antioxidative profile, a key element to counteract the biotic and abiotic stresses. With this regard, light-emitting diodes (LEDs) are emerging as a powerful technology which allows the selection of specific wavelengths and intensities, and therefore the targeted accumulation of plant antioxidant compounds. Despite the unique advantages of such technology, LED application in the horticultural field is still at its early days and several aspects still need to be investigated. This review focused on the most recent outcomes of LED application to modulate the antioxidant compounds of plants, with particular regard to vitamin C, phenols, chlorophyll, carotenoids, and glucosinolates. Additionally, future challenges and opportunities in the use of LED technology in the growth and postharvest storage of fruits and vegetables were also addressed to give a comprehensive overview of the future applications and trends of research.

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Growth and bioactive compounds as affected by irradiation with various spectrum of light-emitting diode lights in dropwort

Cited by 18 publications

References 35 publications

White, blue and red LED lighting on growth, morphology and accumulation of flavonoid compounds in leafy greens

White, blue and red LED lighting on growth, morphology and accumulation of flavonoid compounds in leafy greens

Supplementary Light Source Affects Growth, Metabolism, and Physiology ofAdenophora triphylla(Thunb.) A.DC. Seedlings

Challenges and Opportunities of Light-Emitting Diode (LED) as Key to Modulate Antioxidant Compounds in Plants. A Review

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