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. 2015 Oct 23;6:885. doi: 10.3389/fpls.2015.00885

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Copyright © 2015 Manova and Gruszka.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Schematic representation of the photoreactivation mechanism utilized by plants to repair UV-induced pyrimidine dimers. On the left is schematized the classical well characterized process of CPD photoreactivation in double-stranded DNA. On the right is presented a hypothetical mode of CPD photoreactivation, which might operate within the open DNA regions generated during transcription, replication and repair processes. It is thought to bemediated by the DASH chryptochromes, based on their ability to photoreactivate CPD in single-stranded DNA (Pokorny et al., 2008). Future research is needed to prove or reject such an intriguing concept. T/R/R complex – transcription, replication or repair complex.