Enhanced excision repair and lack of PSII activity contribute to higher UV survival of Chlamydomonas reinhardtii cells in dark.

Abstract excerpt

Plant cells are known to differentiate their responses to stress depending up on the light conditions. We observed that UVC sensitive phenotype of light grown asynchronous Chlamydomonas reinhardtii culture (Light culture: LC) can be converted to relatively resistant form by transfer to dark condition (Dark culture: DC) before UVC exposure. The absence of photosystem II (PSII) function, by either atrazine...

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