Present State of Medicine

Ultraviolet-B-Responsive Anthocyanin Production in a Rice Cultivar Is Associated with a Specific Phase of Phenylalanine Ammonia Lyase Biosynthesis

“…ozone layer has declined from 1 to 4% over the past 20 years (Watson, 1988). Moreover, in the tropics, the amount of UV-B radiation reaching the earth's surface is significantly higher than that in temperate areas, because the ozone layer above the tropics is thinner and solar angles are maximal (Caldwell et al, 1980).…”