However, little is known on the integrity of combined effect of green, red and blue LEDs, with no experimental evidence available concerning the expression of multiprotein complexes for promotion of induction of photosynthesis. Presently, we grew lettuce plants (Lactuca sativa L.) under different light intensities at three wavelengths (given in Table 1) of green, red and blue LEDs and analyzed the expression of thylakoid multiprotein complex proteins (MCPs), opening and closing of stomata and major photosynthetic parameters. Photosynthetic-mediated proteins in sub-compartments of chloroplasts including stomatal opening and closing and photosynthetic activity responded most to blue LEDs of high light intensity. The response of photosynthesis was more sensitive in blue LEDs than red and green LEDs.