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Ernstsen, Jerriann; Woodrow, Ian E.; Mott, Keith A.

doi:10.1023/a:1006289901858

Cited by 17 publications

(3 citation statements)

References 23 publications

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“…This implies that blue light was more effective in Rubisco protein synthesis than red light. However, our results of Rubisco concentration showed no correlation with the results of the photosynthetic rate which were consistent with the result of Ernstsen et al [55], who reported that light quality had a small or no effect on Rubisco induction.…”

Section: Discussionsupporting

confidence: 88%

Growth and Acclimation of In Vitro-Propagated M9 Apple Rootstock Plantlets under Various Visible Light Spectrums

Chung

Lee

2020

Agronomy

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This study aimed to explore the suitable light quality condition for ex vitro acclimation of M9 apple plantlets. Light quality treatments were set as followed; monochromatic LEDs (red (R), green (G), blue (B)) and polychromatic LEDs (R:B = 7:3, 8:2 and 9:1; R:G:B = 6:1:3, 7:1:2 and 8:1:1). Plant height of R, R9B1, and R8G1B1 treatments were significantly higher than the other treatments. The number of leaves and SPAD value of B were significantly higher than the other treatments. Root fresh weights of R9B1 and R7G1B2 treatments showed an increase of at least 1.7-times compared to R, G and R8B2. R8G1B1 accumulated higher starch contents than the other treatments. Photosynthetic rate of R9B1 and R8B2 were significantly higher than the other treatments. In terms of stomatal conductance and transpiration rate, treatments with high blue ratio such as B, R7B3 had higher values. Rubisco concentration was high in R and B among monochromatic treatments. In conclusion, red light was effective to increase photosynthetic rate and biomass and blue light increased chlorophyll content and stomatal conductance. Therefore, for R9B1 and R8G1B1, a mixture of high ratio of red light with a little blue light would be proper for the acclimation of in vitro-propagated apple rootstock M9 plantlets to an ex vitro environment.

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Section: Discussionsupporting

confidence: 88%

Growth and Acclimation of In Vitro-Propagated M9 Apple Rootstock Plantlets under Various Visible Light Spectrums

Chung

Lee

2020

Agronomy

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“…The limitation on the acceptor side of PSI may result from the efficiency of the Calvin-Benson cycle, especially the amount and activity of RuBisCo [33]. A high proportion of far-red light activates RuBisCo [48]. On the other hand, the amount of RuBisCo also depends on light intensity, not only on light quality [49].…”

Section: Discussionmentioning

confidence: 99%

Performance of the Photosynthetic Apparatus under Glass with a Luminophore Modifying Red-To-Far-Red-Light Ratio—A Case Study

Tokarz,

Makowski,

Tokarz

et al. 2023

Cells

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The aim of this study was to examine the effect of the modified light spectrum of glass containing red luminophore on the performance of the photosynthetic apparatus of two types of lettuce cultivated in soil in a greenhouse. Butterhead and iceberg lettuce were cultivated in two types of greenhouses: (1) covered with transparent glass (control) and (2) covered with glass containing red luminophore (red). After 4 weeks of culture, structural and functional changes in the photosynthetic apparatus were examined. The presented study indicated that the red luminophore used changed the sunlight spectrum, providing an adequate blue:red light ratio, while decreasing the red:far-red radiation ratio. In such light conditions, changes in the efficiency parameters of the photosynthetic apparatus, modifications in the chloroplast ultrastructure, and altered proportions of structural proteins forming the photosynthetic apparatus were observed. These changes led to a decrease of CO2 carboxylation efficiency in both examined lettuce types.

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“…Light ecology studies have demonstrated that the blue–violet light (400–480 nm) and red–orange light (600–700 nm) used as a light fertilizer can enhance the photosynthetic efficiency of crops. − The former is beneficial to increase the protein content, while the latter can promote synthesis of carbohydrates. Further, the light conversion shed film experiments show that the growth cycle of crops, insect pests, and ultraviolet (UV) damage to the polymer matrix are obviously reduced or shortened; meanwhile, quality and yields of crops are significantly increased. − Therefore, the light conversion agents used for an agricultural film have received extensive attention, and great progress have been made in the past few decades.…”

Section: Introductionmentioning

confidence: 99%

Exploration of Highly Efficient Blue–Violet Light Conversion Agents for an Agricultural Film Based on Structure Optimization of Triphenylacrylonitrile

Wang

Liu

et al. 2018

J. Agric. Food Chem.

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To obtain highly efficient blue–violet light conversion agents used for an agricultural film, six triarylacrylonitrile derivatives and their doping films were prepared. Further, the luminogens have the ability to convert ultraviolet light into blue–violet light and exhibit aggregation-dependent fluorescence emission and high-contrast fluorescence quantum yields from 0.004 to 0.833. On the basis of X-ray single-crystal diffraction analysis and aggregation-induced emission activity tests, the variant fluorescence quantum yields are attributed to intermolecular π–π stacking and phase transition between the crystalline state and amorphous state. In a simulated greenhouse environment, the luminogens exhibit excellent photostability. However, their fluorescence intensity drops to 17–40% of the prime intensity after outdoor radiation for 1 month as a result of the ring-closing oxidation reaction (in the summer). By comprehensively considering the above photophysical properties and mechanical properties of the doping film, 2-([1,1′-biphenyl]-4-yl)-3,3-diphenylacrylonitrile is a potential light conversion agent for an agricultural film in the winter. More importantly, the results indicate that the properties of the light conversion films are expected to be further improved by molecular design, inhibiting the ring-closing oxidation reaction and dispersion of crystalline nanoparticles in the doping film.

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Untitled

Cited by 17 publications

References 23 publications

Growth and Acclimation of In Vitro-Propagated M9 Apple Rootstock Plantlets under Various Visible Light Spectrums

Growth and Acclimation of In Vitro-Propagated M9 Apple Rootstock Plantlets under Various Visible Light Spectrums

Performance of the Photosynthetic Apparatus under Glass with a Luminophore Modifying Red-To-Far-Red-Light Ratio—A Case Study

Exploration of Highly Efficient Blue–Violet Light Conversion Agents for an Agricultural Film Based on Structure Optimization of Triphenylacrylonitrile

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