Eukaryotic class II cyclobutane pyrimidine dimer photolyase structure reveals basis for improved ultraviolet tolerance in plants.

@article{Hitomi2012EukaryoticCI,
  title={Eukaryotic class II cyclobutane pyrimidine dimer photolyase structure reveals basis for improved ultraviolet tolerance in plants.},
  author={Kenichi Hitomi and Andrew S. Arvai and Junpei Yamamoto and Chiharu Hitomi and Mika Teranishi and Tokuhisa Hirouchi and Kazuo Yamamoto and Shigenori Iwai and John A. Tainer and Jun Hidema and Elizabeth D. Getzoff},
  journal={The Journal of biological chemistry},
  year={2012},
  volume={287 15},
  pages={12060-9}
}
Ozone depletion increases terrestrial solar ultraviolet B (UV-B; 280-315 nm) radiation, intensifying the risks plants face from DNA damage, especially covalent cyclobutane pyrimidine dimers (CPD). Without efficient repair, UV-B destroys genetic integrity, but plant breeding creates rice cultivars with more robust photolyase (PHR) DNA repair activity as an environmental adaptation. So improved strains of Oryza sativa (rice), the staple food for Asia, have expanded rice cultivation worldwide… CONTINUE READING