Changes in the spectrum of light strongly influenced the
parameters of the anatomy, physiology and morphology of leaves
(Hogewoning et al., 2010; Macedo et al., 2011). It has been shown
that the blue spectrum increased the thickness of the epidermis
and palisade mesophyll cells, whereas the red spectrum decreased
the thickness of the abaxial-face and spongy tissues (Saebo et al.,
1995; Macedo et al., 2011).