Effect of Red and Blue LED Ratio on Growth and Glucosinolate Contents of Watercress (Nasturtium officinale) in a Plant Factory

Choi, Woo Hee; Bok, Gwonjeong; Lee, Hyunjoo; Do, Hyeon-Min; Park, Jong‐Seok

doi:10.7235/hort.20200045

Cited by 3 publications

(2 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These results further indicated that RB and UVB light enhanced antioxidant activity and improved fruit quality by increasing contents of phenolic acids and flavonoids, respectively. Previous studies have revealed that combining red and blue LED light improves growth and phenolic acid contents in many plants, such as Salvia miltiorrhiza , Melissa officinalis , and Nasturtium officinale [ 64 , 65 , 66 ]. UVB treatment accumulated phenolic acids in barley seedlings.…”

Section: Discussionmentioning

confidence: 99%

Effects of Supplemental Lighting on Flavonoid and Anthocyanin Biosynthesis in Strawberry Flesh Revealed via Metabolome and Transcriptome Co-Analysis

Chen,

Wang,

Cheng

et al. 2024

Plants

View full text Add to dashboard Cite

The spectral composition of light influences the biosynthesis of flavonoids in many plants. However, the detailed composition of flavonoids and anthocyanins and the molecular basis for their biosynthesis in strawberry fruits under two light-quality treatments, red light supplemented with blue light (RB) and ultraviolet B (UVB) irradiation, remain unclear. In this study, the content of flavonoids and anthocyanins was significantly increased in strawberry fruits under RB light and UVB, respectively. The content of flavonoids and anthocyanins in strawberry fruits under UVB light was dramatically higher than that in strawberry fruits irradiated with RB light, and a total of 518 metabolites were detected by means of LC-MS/MS analysis. Among them, 18 phenolic acids, 23 flavonoids, and 8 anthocyanins were differentially accumulated in the strawberry fruits irradiated with red/blue (RB) light compared to 30 phenolic acids, 46 flavonoids, and 9 anthocyanins in fruits irradiated with UVB. The major genes associated with the biosynthesis of flavonoids and anthocyanins, including structural genes and transcription factors (TFs), were differentially expressed in the strawberry fruits under RB and UVB irradiation, as determined through RNA-seq data analysis. A correlation test of transcriptome and metabolite profiling showed that the expression patterns of most genes in the biosynthesis pathway of flavonoids and anthocyanins were closely correlated with the differential accumulation of flavonoids and anthocyanins. Two TFs, bZIP (FvH4_2g36400) and AP2 (FvH4_1g21210), induced by RB and UVB irradiation, respectively, exhibited similar expression patterns to most structural genes, which were closely correlated with six and eight flavonoids, respectively. These results indicated that these two TFs regulated the biosynthesis of flavonoids and anthocyanins in strawberry fruit under RB light and UVB, respectively. These results provide a systematic and comprehensive understanding of the accumulation of flavonoids and anthocyanins and the molecular basis for their biosynthesis in strawberry fruits under RB light and UVB.

show abstract

Section: Discussionmentioning

confidence: 99%

Effects of Supplemental Lighting on Flavonoid and Anthocyanin Biosynthesis in Strawberry Flesh Revealed via Metabolome and Transcriptome Co-Analysis

Chen,

Wang,

Cheng

et al. 2024

Plants

View full text Add to dashboard Cite

show abstract

“…According to various studies conducted in the past, it has been reported that in addition to light intensity, the spectral distribution or quality of light also plays a significant role in influencing plant growth, and ornamental values and enhancing physiological activities that contribute to increased photosynthesis, compound accumulation, and pigmentation (Virsile et al, 2017;Choi et al, 2020Choi et al, , 2022Lee et al, 2020Lee et al, , 2021bLee et al, , 2022aSong et al, 2020aSong et al, , 2020bRoh and Yoo, 2023). Light-emitting diodes are considered the best choice among artificial light sources in controlled plant cultivation because they are generally more energy-efficient, have a long bulb lifetime, and produce low heat emission as compared to other types of lamps (Bourget, 2008;Fujiwara, 2016;Pattison et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Vegetative Propagation of Six Pachyphytum Species as Influenced by Different LED Light Qualities

Lee,

Nam

2023

HST

View full text Add to dashboard Cite

Pachyphytum, a slow-growing succulent genus, is considered a high-value ornamental plant in high demand as a potted plant. To facilitate and enhance its vegetative propagation, different light-emitting diode (LED) light qualities were used on leaf cuttings. Different light spectrum qualities, i.e., red (peak at 630 nm), blue (peak at 450 nm), purple (peaks at 450 and 650 nm), 3000 K white LED (peaks at 455 and 600 nm), 4100 K white LED (peaks at 455 and 590 nm), and 6500 K white LED (peaks at 450 and 545 nm), were used as treatments for six Pachyphytum species or cultivar, specifically P. compactum, P. glutinicaule, P. machucae, P. oviferum, P. viride, and P. cv. Oviride (P. oviferum × P. viride). The results of this study suggest that the different light qualities studied here significantly affected the growth and development of the Pachyphytum species. The use of blue and 6500 K white LED lights increased survival rates, rooting, and shooting success, while the use of white lights significantly improved shoot and root growth as well as the corresponding fresh and dry weights. However, in terms of the percentage moisture content, the effects of monochromatic red and blue lights, as well as the composite spectral distribution of purple light, were significantly higher compared to the effect of white light. The improvement in root growth and development, and the fresh and dry weights of Pachyphytum species under different light spectra are evidence that the effects of the light quality vary among plant species even when they belong to the same genus. Similarly, the use of different light qualities may be beneficial at certain growth stages for leaf cuttings to promote the optimal development of plant organs. The results of this study provide improved vegetative propagation techniques for Pachyphytum species and other slow-growing succulents propagated through leaf cuttings.

show abstract

Effects of Different Light-Emitting Diode Illuminations on Bioactive Compounds in Ruby Streaks Mustard Microgreens by Ultra-High Performance Liquid Chromatography–High-Resolution Mass Spectrometry

Liu

Teng

Pearlstein

et al. 2022

ACS Food Sci. Technol.

View full text Add to dashboard Cite

Mustard (Brassica juncea var. “Ruby Streaks”) is a popular microgreen species with rich phenolic and glucosinolate contents. Light-emitting diodes (LEDs) have been increasingly used to promote the content of bioactive compounds in commercially grown plants, particularly in controlled environment agriculture (CEA) settings. The present research aimed to investigate the effect of LED light wavelengths on the phytochemical profiles of the major secondary metabolites [i.e., anthocyanins, non-anthocyanin phenolics, and glucosinolates (GLs)] of Ruby Streaks mustard microgreens. Twenty-six anthocyanins, thirty-five non-anthocyanin phenolics, and six GLs were characterized in Ruby Streaks mustard extracts. Among them, three hydroxycinnamic acid-acylated Cyanidin 3-O-sophoroside-5-O-diglucosides and eight hydroxycinnamic acid-acylated flavonol-O-pentosylglucosides were newly discovered compounds in mustard microgreens. Three light treatments (blue, red, and magenta) were investigated and compared to the white (2700k) control. The red (660 nm) light and magenta (450 + 650 nm) light promoted the accumulation of both total and individual anthocyanin/aliphatic GLs, while the blue (450 nm) light was found to be the dominant factor in the accumulation of non-anthocyanin phenolics. The results suggested the significant and complex effect of lighting conditions on phytochemical accumulation in Ruby Streaks mustard microgreens, thus the potential of modulating nutritional profiles by varying wavelength of the light source.

show abstract

Effect of Red and Blue LED Ratio on Growth and Glucosinolate Contents of Watercress (Nasturtium officinale) in a Plant Factory

Cited by 3 publications

References 49 publications

Effects of Supplemental Lighting on Flavonoid and Anthocyanin Biosynthesis in Strawberry Flesh Revealed via Metabolome and Transcriptome Co-Analysis

Effects of Supplemental Lighting on Flavonoid and Anthocyanin Biosynthesis in Strawberry Flesh Revealed via Metabolome and Transcriptome Co-Analysis

Vegetative Propagation of Six Pachyphytum Species as Influenced by Different LED Light Qualities

Effects of Different Light-Emitting Diode Illuminations on Bioactive Compounds in Ruby Streaks Mustard Microgreens by Ultra-High Performance Liquid Chromatography–High-Resolution Mass Spectrometry

Contact Info

Product

Resources

About