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. 2017 Sep 29;8:1882. doi: 10.3389/fmicb.2017.01882

FIGURE 6.

FIGURE 6

Ultraviolet-resistance strategies of halophilic archaea. UV irradiation is attenuated by photoprotective mechanisms, lessening the damage to DNA. The damage that does result may be repaired by a suite of DNA repair systems. [UV, ultraviolet radiation; ROS, reactive oxygen species; CPDs, cyclobutane pyrimidine dimers; (6-4)PP, pyrimidine (6-4) pyrimidone photoproducts; PHR, photoreactivation; NER, nucleotide excision repair; BER, base excision repair; HR, homologous recombination].