How does plant DNA avoid the ravages of UV radiation?

Plants can’t come in from the sun or slather on sunblock; instead they have a super robust DNA repair kit to combat UV radiation. Today, the lab of 2015 Nobel laureate Aziz Sancar published the first repair map of an entire multicellular organism to show how the ‘nucleotide excision repair’ system works much more efficiently in the active genes of plants as compared to humans. And this efficiency depends on the day/night cycle.
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