Concentration of phenolic compounds is increased in lettuce grown under high light intensity and elevated CO 2

Pérez‐López, Usue; Sgherri, Cristina; Miranda-Apodaca, Jon; Micaelli, Francesco; Lacuesta, M.; Mena‐Petite, Amaia; Quartacci, Mike Frank; Muñoz‐Rueda, Alberto

doi:10.1016/j.plaphy.2017.12.010

Cited by 100 publications

(58 citation statements)

References 35 publications

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“…conditiva Alef. and in the leaves of lettuce plants (Lactuca sativa L.) (Galieni et al, 2015;Perez-Lopez et al, 2018;Stagnari et al, 2014). The shading treatments employed in this research significantly affected the total phenols and flavonoids content; the content of total phenols and flavonoids was significantly positively correlated with the transmittance of shading nets (r = 0.69 (P < 0.0001) and 0.52 (P = 0.0002), respectively) (Table S1), which indicates that light with high intensity contributes to the synthesis of phenols and flavonoids.…”

Section: Discussionmentioning

confidence: 99%

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Response of total phenols, flavonoids, minerals, and amino acids of four edible fern species to four shading treatments

Wang

Gao

et al. 2020

PeerJ

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Total phenols, flavonoids, minerals and amino acids content were investigated in leaves of four fern species grown under four shading treatments with different sunlight transmittance in 35% full sunlight (FS), 13% FS, 8% FS and 4% FS. The leaves of four fern species contain high levels of total phenols and flavonoids, abundant minerals and amino acids, and these all were strongly affected by transmittance. Total phenols and flavonoids content were significantly positively correlated with transmittance, while minerals and total amino acids content were significantly negatively correlated with transmittance, a finding that supports research into how higher light intensity can stimulate the synthesis of phenols and flavonoids, and proper shading can stimulate the accumulation of minerals and amino acids. Matteuccia struthiopteris (L.) Todaro (MS) had the highest total phenols content, Athyrium multidentatum (Doll.) Ching (AM) showed the highest total amino acids, total essential amino acids content, Osmunda cinnamomea (L) var. asiatica Fernald (OCA) exhibited the highest total non-essential amino acids and flavonoids content. Pteridium aquilinum (L.) Kuhn var. latiusculum (Desy.) Underw. ex Heller (PAL) exhibited the highest minerals content. This research can provide a scientific basis for the cultivation and management of those four fern species.

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Section: Discussionmentioning

confidence: 99%

“…S5), which indicates that the four fern species can scavenge H 2 O 2 by increasing the synthesis of total phenols and flavonoids. As the light intensity increases, plants can alleviate the oxidative damage caused by strong light through the synthesis of secondary metabolites in the body (Agati & Tattini, 2010;Perez-Lopez et al, 2018).…”

Section: Discussionmentioning

confidence: 99%

Response of total phenols, flavonoids, minerals, and amino acids of four edible fern species to four shading treatments

Wang

Gao

et al. 2020

PeerJ

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“…Phenolic compounds are important determinants in the nutraceutical value of vegetable crops, including lettuce [41]. Different stressors can stimulate the biosynthesis or the accumulation of specific molecules belonging to this group [42][43][44]. In this study, the highest value of the phenolic index was found in leaves from Cycle 2 (151.41 µmol m −2 s −1 ), which could be explained by thinking that the highest percentage of blue light (6.9 %) could have had a role in stimulating the accumulation of phenolic compounds, as previously reported in lettuce [10,45].…”

Section: Effect Of Different Growing Conditions On Lettuce Quality Anmentioning

confidence: 99%

Optimization of LED Lighting and Quality Evaluation of Romaine Lettuce Grown in An Innovative Indoor Cultivation System

Loconsole

Cocetta

Santoro³

et al. 2019

Sustainability

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Sustainability is the most critical point in micro-scale indoor crop systems. It can be improved through the optimization of all of the production factors, such as water, nutrients, and energy. The use of light-emitting diodes (LED) allows the fine regulation of the light intensity and light spectrum to be obtained, with a significant reduction in energy consumption. The objective of this study was the optimization of a LED-based protocol of light management for Romaine lettuce cultivation in a micro-growing environment specifically designed for home cultivation. Four different growing cycles were tested. In each one, the light spectrum was modified by increasing the percentage of red light and decreasing the blue light. This resulted in a change in the light intensity which ranged from 63.2 to 194.54 µmol m −2 s −1 . Moreover, the photoperiod was shortened to reduce the energy consumption and, in the last cycle, the effect of the daily alternation of dark and light was tested. The fresh and dry biomass produced were measured and the energy consumed in each cycle was monitored. The quality of lettuce was evaluated by measuring several physiological indexes, including chlorophyll a fluorescence, chlorophyll, sugars, nitrate, lipid peroxidation, carotenoids, and phenolic index. The results obtained showed that the productivity and the quality of lettuce can be positively affected by modulating the light quality and intensity, as well as other cultural practices. At the same time, the estimation of the electrical energy consumption indicated that little changes in the lighting recipe can significantly affect the energetic, environmental, and economic impact of home productions.

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“…UV light affect the phenolics and pigment content of broccoli sprouts [40], carrots [41], Vigna radiate sprouts [42], Gracilaria chilensis [43], Capsicum chinense [44], and Solanum lycopersicum [45]. High light intensity affects the phenolic and flavonoid content of Salvia plebeia [46], Brassica species [47] and L. sativa [48]. Even mulberry treated with pulsed light ultrasound have higher phenolic content than mulberry treated with other ultrasound treatments [49].…”

Section: Influence Of Light On the Plant Total Phenolic And Flavonoidmentioning

confidence: 99%

Influence of Light Intensity on the Photosynthesis and Phenolic Contents of Mangifera Indica

Linatoc

Idris²,

Bakar

2018

JST

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Light is an important environmental factor that have an influence on a plants photosynthesis and production of secondary metabolites like phenolic compounds and flavonoid. Mangifera indica from the family Anacardiaceae is known to have bioactivity due to its phenolic and flavonoid contents. The objective of the study is to determine the influence of light on the photosynthesis and phenolic contents of M. indica. Photosynthesis of the plant was measured using a portable photosynthesis system referred to as LICOR-6400. Photosynthetic pigments as well as phenolic and flavonoid contents were quantified using a UV-VIS spectrophotometer. The outcome derived from the study shows that sun exposed leaves of the studied plant were having the maximum photosynthesis, saturation and compensation points (P < 0.05). Moreover, sun exposed leaves were having higher carotenoid, phenolic and flavonoid contents but lower chlorophyll contents. This leads to a conclusion that sun leaves of M. indica contribute the highest photosynthesis and phenolic contents to the plant.

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Concentration of phenolic compounds is increased in lettuce grown under high light intensity and elevated CO 2

Cited by 100 publications

References 35 publications

Response of total phenols, flavonoids, minerals, and amino acids of four edible fern species to four shading treatments

Response of total phenols, flavonoids, minerals, and amino acids of four edible fern species to four shading treatments

Optimization of LED Lighting and Quality Evaluation of Romaine Lettuce Grown in An Innovative Indoor Cultivation System

Influence of Light Intensity on the Photosynthesis and Phenolic Contents of Mangifera Indica

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