I need some opinions in terms of gene expression and secondary metabolites for plants grown under artificial light. I need to know if there are any big differences in terms of (anti-oxidant, flavanoids, pigments and other secondary metabolites) between plants grown under aritifical lights and plants grown under natural sunlight. Opinions with relevant citations would be much appreciate.
Saturating fluences on an whole canopy are not reached often in production plants under artificial light, but spectral responses of specific LED arrays are reported. A review that reqires a library affiliation to HS is https://www.google.it/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwjxot6nmdzOAhUJWBoKHf7sBDQQFgghMAA&url=http%3A%2F%2Fhortsci.ashspublications.org%2Fcontent%2F50%2F8%2F1128.full&usg=AFQjCNEwm8VlmYODPv58cifvkB9ZwYRufw&sig2=129WASZJPGv6RZxzuxlKZQ
Several responses are mediated by light to temperature interaction.
This article may be useful.
http://www.ncbi.nlm.nih.gov/pubmed/26567525
That is all depend on how you manipulate the artificial nutrient media. Of course, there should be a difference.
Blue and red lights can be promising technology for remodeling the aroma of preharvest tea leaves. Good publication Dr. Mahasen you attached.
Abstract: Regulation of plant growth and development by light wavelength has been extensively studied. The natural light or dark treatment, blue light (470 nm) and red light (660 nm) significantly increased most endogenous volatiles including volatile fatty acid derivatives (VFADs), volatile phenylpropanoids/benzenoids (VPBs), and volatile terpenes (VTs) in the preharvest tea leaves. Furthermore, blue and red lights significantly up-regulated the expression levels of 9/13-lipoxygenases involved in VFADs formation, phenylalanine ammonialyase involved in VPBs formation, and terpene synthases involved in VTs formation. Single light wavelength had less remarkable influences on formation of volatiles in the postharvest leaves compared with the preharvest leaves. These results suggest that blue and red lights can be promising technology for remodeling the aroma of preharvest tea leaves. Furthermore, our study provided evidence that light wavelength can activate the expression of key genes involved in formation of plant volatiles for the first time.
https://www.ncbi.nlm.nih.gov/pubmed/26567525
Photosynthetic processes are often modified in plants grown under artificial lighting, because lamps do not usually mimic the spectrum and energy of sunlight. Agronomically, new lighting technologies such as LEDs have the potential to cover fluence and wavelength requirements of plants, while allowing specific wavelengths to be enriched, thus supplying the light quantity and quality essential for different phases of growth. The biomass and metabolic products of cultivated plants can therefore be modified. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3949401/
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