Interrelation of Absorption Spectra of Plant Pigments and LED Lighting with Different Spectral Compositions

Кулешова, Т. Э.; Likhachev, A. I.; Pavlova, E. S.; Kuleshov, D. O.; Нащекин, А. В.; Gall, N. R.

doi:10.1134/s1063784218090104

Cited by 6 publications

(5 citation statements)

References 9 publications

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“…The red light within wavelength range of 650-700 nm participates most effectively in photosynthesis. Therefore, to enhance plant growth, it is recommended to use light with a predominance of the red component of the spectrum [4]. It has been shown that changes in the intensity in the UV, visible, and even in the near-IR range of the spectrum can affect the rate of growth and development of plants [5].…”

Section: Introductionmentioning

confidence: 99%

Influence of Fluoropolymer Film Modified With Nanoscale Photoluminophor on Growth and Development of Plants

et al. 2020

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The red and blue ranges of the optical spectrum are most suitable for plant photosynthesis. Moreover, quanta of red light stimulate photosynthesis more than quanta of blue light. In northern latitudes, the average daily intensity of the red and blue parts of the spectrum is usually not sufficient for many plants. To increase the productivity of greenhouses in northern latitudes, a technology has been developed for fluoropolymer films with photoconversion nanoparticles (quantum dots) that convert UV radiation and violet light into red light. The use of photoconversion fluoropolymer films promotes an increase in the biomass of plants grown in greenhouses at high latitudes. The greatest effect is observed when tomato plants are grown under photoconversion fluoropolymer films. The biomass of tomato berry obtained from one bush grown under films is 20% higher than the biomass of berry of control tomato plants.

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Section: Introductionmentioning

confidence: 99%

Influence of Fluoropolymer Film Modified With Nanoscale Photoluminophor on Growth and Development of Plants

et al. 2020

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“…It took 3 days for mung bean seeds to germinate into sprouts and 7 days to grow into seedlings with small leaves, while it took okra seeds 5 days to germinate into sprouts and 10 days to grow into seedlings with small leaves (Figure S18). Because pigments inherent in plants usually absorb visible light and exhibit fluorescent emission in the visible-light or NIR-I wavelength range, − ,, the imaging for plants in NIR-II wavelength would be more advantageous in terms of imaging quality owing to negligible interference from plants’ pigments. To check the influence of plants’ inherent pigments on imaging performance, first the mung bean sprouts/seedlings and the okra sprouts/seedlings were directly (without being cultured with the nanoprobe) used for imaging in the visible light range, NIR-I range, and NIR-II range, and the results are shown in Figure S19.…”

Section: Resultsmentioning

confidence: 99%

Water-Dispersible Activatable Nanoprobe for Detecting Cadmium-Ion-Induced Oxidative Stress in Edible Crops via Near-Infrared Second-Window Fluorescence Imaging

et al. 2022

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Edible crops are important in terms of food security and sustainable agriculture. Heavy-metal-ion contamination of water/soil has deleterious impacts on the growth of edible crops. Among the heavy metals, cadmium (Cd) is toxic to plants, people, and animals, as it is widely used in industry; it has become the most important metal ion in the soil/water pollution. Once the toxic Cd ion enters edible crops via the water/soil in which the crops grow, it will induce oxidative stress (overproduction of reactive oxygen species with H2O2 being the most abundant) in the crops, and strong oxidative stress leads to the crops’ growth depression or inhibition. Hence, it is of great significance to accurately monitor the oxidative stress induced by Cd ions in edible crops, as the monitoring results could be employed for the early warning of Cd-ion pollution in water/soil. Herein, we design an activatable nanoprobe that can detect Cd-ion-induced oxidative stress in edible crops via near-infrared second-window (NIR-II) fluorescence imaging. The molecular probe IXD-B contains the diphenylamine-modified xanthene group acting as the electron-donating unit, bis(methylenemalononitrile)indan as the electron-accepting unit, and the methenephenylboronic acid group as the recognition moiety for H2O2 and the fluorescence quencher. The probe molecules being encapsulated by the amphiphilic DSPE-PEG2000 render the water-dispersible nanoprobe (IXD-B@DSPE-PEG2000). When the nanoprobe enters the edible crops, it can be activated by the overexpressed H2O2 therein and consequently emit strong NIR-II fluorescence signals for visualizing and tracking the oxidative stress in edible crops induced by Cd ions.

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“…Supporting Information for this article can be found under DOI: https://doi.org/10.1002/ceat.202100008. This section includes additional references to primary literature relevant for this research 28–32.…”

Section: Supporting Informationmentioning

confidence: 99%

Extraction of Chlorophylls and Carotenoids from Microalgae: COSMO‐SAC‐Assisted Solvent Screening

et al. 2021

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Efficient pigment extraction is a key factor influencing the economic feasibility of microalgal biorefineries. Ethanol, acetone, ethyl acetate, and hexane were evaluated for the batch extraction of chlorophyll a, chlorophyll b, and carotenoids from Chlorella sorokiniana and Heterochlorella luteoviridis. Solvent‐to‐biomass ratios did not affect extraction results in most cases. Ethanol showed the highest efficiency in the recovery of chlorophylls, presenting high extraction yields. Acetone was among the most efficient solvents to extract violaxanthin, lutein, zeaxanthin, and carotene from both microalgae, proving to be generally suitable to this application. Conductor‐like screening model for real solvent segment activity (COSMO‐SAC) corroborated experimental results, proving to be an important tool in the screening of solvents for extraction processes.

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Interrelation of Absorption Spectra of Plant Pigments and LED Lighting with Different Spectral Compositions

Cited by 6 publications

References 9 publications

Influence of Fluoropolymer Film Modified With Nanoscale Photoluminophor on Growth and Development of Plants

Influence of Fluoropolymer Film Modified With Nanoscale Photoluminophor on Growth and Development of Plants

Water-Dispersible Activatable Nanoprobe for Detecting Cadmium-Ion-Induced Oxidative Stress in Edible Crops via Near-Infrared Second-Window Fluorescence Imaging

Extraction of Chlorophylls and Carotenoids from Microalgae: COSMO‐SAC‐Assisted Solvent Screening

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