“…Leaf anthocyanin levels often increase in response to UV-B radiation in laboratory trials (Alexieva et al, 2001;Brandt et al, 1995;Lindoo and Caldwell, 1978) and their presence can alleviate DNA damage (Kootstra, 1994;Li et al, 1993). Under field conditions, with balanced UV-A/visible radiation, mildly enhanced UV-B radiation may (Mendez et al, 1999) or may not (Dillenburg et al, 1995) result in increased anthocyanin levels.…”