Variation in UV-Mediated Damage Recovery Among Pseudoidium neolycopersici Isolates: Possible Mechanisms

The cryptochrome/photolyase family (CPF) consists of a diversified class flavoproteins that are evolutionarily related. Although their domain architecture is highly conserved, they perform entirely different physiological functions. Previous studies have confirmed the presence functional photolyase in Pseudoidium neolycopersici, which repairs UV-C-induced DNA damage by using near UV-A/blue light as an energy source. Similar doses UV-C treatment followed incubation with dark or blue was tested on conidia germination five isolates P. neolycopersici collected from regions Norway and Netherlands. results showed variations effect UV recovery under after treatment. Evolutionary conserved among species. All CPF members core consisting identical cofactor, flavin adenine dinucleotide (FAD), additional photoantenna chromophore. An amino acid sequence analysis demonstrated C terminals compared N terminals, because FAD binds C-terminal region. When other members, varying lengths were noticed putative cryptochrome, respectively. Further research comparative genomics targeting pyrimidine base composition, role regulatory elements, including promotor architecture, characterization optical properties native may help to explain differences biological responses treated UV. [Formula: see text] Copyright © 2021 Author(s). This open access article distributed CC BY-NC-ND 4.0 International license .