FITOLED-Implementation of a growth room to evaluate the effects of light quality on photosynthesis and on the production of secondary metabolites interest in the phytosanitary field

The light radiation, in addition to being an essential source of energy for the plants, is an important signal that plays a key role in the development of the plants, in the biosynthesis of cell components and in the gene expression during all its life cycle. The Project FITOLED ("Implementation of a growth room to evaluate the effects of light quality on photosynthesis and on the production of secondary metabolites interest in the phytosanitary field"), funded by the Ente Cassa di Risparmio di Firenze, intends to investigate the effects of light quality on the biochemical and physiological mechanisms in response to stress factors. In particular, a research concerning the influence of the quality of light on the modulation of the secondary metabolites emitted in thermal stress conditions will be undertaken. It will thus determine the role of secondary metabolites in plant resistance to abiotic stress and thus in mitigating the thermal stress generated by climate change. It is hypothesized that by manipulating the spectral composition of the radiation, it is possible to increase the emission of isoprenoids by plants, in order to improve the defense of the plants against various stress factors.


These studies plan to implement tests inside the "walking-in" growth rooms equipped with advanced equipment adequate for environmental biology research, thus financing the project FITOLED allowed us to buy a growth room equipped with advanced lighting systems which can provide and modulate different qualities of radiation. The growth room, 2x2 meters in size, is equipped with humidity, temperature and photoperiod control. The interior of the room is set up with three trays, each illuminated with LED lamps (Light Emitting Diodes) of the latest generation. LED lamps, "LumiGrow Pro650", provide twice the blue and red light, with a 40% of energy saving compared to an HID lamp of 1000 W, and guarantee 50,000 hours of illumination without loss of efficiency (5 times longer than HID lamps). These lamps guarantee high efficiency, low heat production, energy saving and allow to select the intensity of the blue and red light, which are the most efficient wavelengths for the production process of chemical energy (carbohydrates and sugars) operated by plants through photosynthesis. In particular, at maximum power the lamps provide a light intensity comprised between 760 and 914 micromol m-2s-1, and the emission spectrum shows a peak of 6.76 micromol m-2s-1nm-1 in the blue region (460-480 nm) and 23.8 micromol m-2s-1 nm-1 in the red (650-750 nm).

info

Mauro Centritto
Anna De Carlo

[Last updated on: 21-09-2016]
Navigando il sito ivalsa.cnr.it acconsenti all'utilizzo dei Cookie. Per maggiori dettagli.