The role of the protective shield against UV-C radiation and its molecular interactions in Nostoc species (Cyanobacteria).

ABSTRACT: Cyanobacteria possess special defense mechanisms to protect themselves against ultraviolet (UV) radiation. This study combines experimental and computational methods to identify the role of protective strategies in Nostoc species against UV-C radiation. To achieve this goal, various species of the genus Nostoc from diverse natural habitats in Iran were exposed to artificial UV-C radiation. The results indicated that UV-C treatment significantly reduced the photosynthetic pigments while simultaneously increasing the activity of antioxidant enzymes. Notably, N. sphaericum ISB97 and Nostoc sp. ISB99, the brown Nostoc species isolated from habitats with high solar radiations, exhibited greater resistance compared to the green-colored species. Additionally, an increase in scytonemin content occ

SUBMITTER: Irankhahi P 

PROVIDER: S-EPMC11336245 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature