Morpho-Physiological Responses of Arabidopsis thaliana L. to the LED-Sourced CoeLux® System.
The CoeLux® lighting system reproduces the true effect of natural sunlight entering through an opening in the ceiling, with a realistic sun perceived at an infinite distance surrounded by a clear blue sky. It has already been demonstrated that this new lighting system generates long-term positive effects on human beings; however, there are no investigations so far concerning the plant responses to CoeLux® lighting. To fill this gap, the model plant Arabidopsis thaliana L. was grown at four different distances from the light source, corresponding to four different light intensities (120, 70, 30, 20 μmol m-2 s-1). High-pressure sodium lamps were used as control light. Plant phenology and morpho-physiological traits were monitored to assess for the first time the ability of plants to grow and develop under the light spectrum and intensity of the CoeLux® system. Plants grown at the lower light intensities showed a delayed life cycle and were significantly smaller than plants grown with more light. Furthermore, plants grown under the CoeLux® light type showed an additional deficit when compared to control plants. Overall, our results show that both the light spectrum and intensity of the CoeLux® system had a strong impact on A. thaliana growth performance.
['Beatrice|Peter|P|0000-0001-8331-8273', 'Terzaghi|Mattia|M|0000-0002-8803-7726', 'Chiatante|Donato|D|0000-0003-4854-5408', 'Scippa|Gabriella Stefania|GS|', 'Montagnoli|Antonio|A|']
Arabidopsis thaliana CoeLux® light intensity light spectrum LEDs confined environment growth and development low light photomorphogenesis