Phytochrome (S): The Main Agent of Action of Low-Intensity He–Ne Laser Radiation on Seeds of Cultivated Plants: A Review

Dudareva, Lyubov

doi:10.1007/s00344-023-11118-5

J Plant Growth Regul

2023

DOI: 10.1007/s00344-023-11118-5

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Phytochrome (S): The Main Agent of Action of Low-Intensity He–Ne Laser Radiation on Seeds of Cultivated Plants: A Review

Lyubov Dudareva

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2024

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Cited by 3 publications

References 90 publications

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A study on the mechanical strength of alfalfa seeds stimulated with continuous laser light

Dziwulska-Hunek,

Szymanek,

Matwijczuk

et al. 2024

Sci Rep

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The presented study explored the impact of He-Ne laser light stimulation on basic, selected mechanical properties of alfalfa seeds. The following parameters were considered: destructive force (F), destructive force work (W), and absolute longitudinal deformation (dL). Moreover, the single seed mass (m) was measured prior to the compression test, and the ratios of destructive force to absolute longitudinal deformation (F/dL) and destructive force work to single seed mass (W/m) were calculated. Subsequently, the mass of 1000 seeds was determined using RADWAG XA110.3Y scales, and the geometric dimensions of seeds were measured using a Keyence VHX-2000 microscope. Prior to the compression test, the seeds were subjected to laser light stimulation (λ = 632.8 nm, surface force density = 6 mW·cm− 2) with the exposure time of, respectively: 0 s (control – no stimulation – C), 30 s (L30s), 1 min (L1), 2 min (L2), and 3 min (L3). We observed an increase in most of the mechanical parameters measured under the influence of all the laser light stimulation variants. The only exception was the F/dL ratio, which decreased after 2 and 3-minute exposure, as compared to the control. The results evidenced increased mechanical strength of the stimulated seeds, which may prove significant to the cultivation of new, more resilient cultivars.

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A study on the mechanical strength of alfalfa seeds stimulated with continuous laser light

Dziwulska-Hunek,

Szymanek,

Matwijczuk

et al. 2024

Sci Rep

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show abstract

RBOH-dependent signaling is involved in He-Ne laser-induced salt tolerance and production of rosmarinic acid and carnosol in Salvia officinalis

Mardani-Korrani,

Amooaghaie,

Ahadi

et al. 2024

BMC Plant Biol

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Germination of aspidosperma discolor a. Dc. Under Different light and Temperature Conditions

Lima,

Feliciano,

Marangon

et al. 2024

RGSA

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Theoretical framework: Among the genera of the Apocynaceae family found in Brazil, Aspidosperma is among the most important, because of its high medicinal and economic value. Objective: The objective of this work was to evaluate the effects of white, far-red, and red light, and the absence of light; as well as the effects of constant temperatures of 25 ºC, 30 ºC and 35 ºC, on seed germination behavior of Aspidosperma discolor A. DC. Method: The material was collected in Atlantic Forest fragments. The germination percentage, speed index, average time and average seed germination speed were evaluated. A completely randomized design was used, and the means were compared by the Tukey test at 95% probability. A 4 x 2 factorial arrangement was used for the evaluation of the light regime (four light regimes and two origins); and for the thermal influence, a 3 x 2 arrangement (three temperature levels and two origins) was employed. Each test had five repetitions with 20 seeds. Results: The results showed that the seeds of both origins presented preferential or neutral photoblastic behavior, with better germination performance at 25 °C. However, they had total germination inhibition when exposed to 35 ºC.

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Phytochrome (S): The Main Agent of Action of Low-Intensity He–Ne Laser Radiation on Seeds of Cultivated Plants: A Review

Cited by 3 publications

References 90 publications

A study on the mechanical strength of alfalfa seeds stimulated with continuous laser light

A study on the mechanical strength of alfalfa seeds stimulated with continuous laser light

RBOH-dependent signaling is involved in He-Ne laser-induced salt tolerance and production of rosmarinic acid and carnosol in Salvia officinalis

Germination of aspidosperma discolor a. Dc. Under Different light and Temperature Conditions

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