Disruption of the AtREV3 Gene Causes Hypersensitivity to Ultraviolet B Light and γ-Rays in Arabidopsis: Implication of the Presence of a Translesion Synthesis Mechanism in Plants

To investigate UV light response mechanisms in higher plants, we isolated a UV light-sensitive mutant, rev3-1, in Arabidopsis. The root growth of rev3-1 was inhibited after UV-B irradiation under both light and dark conditions. We found that chromosome 1 of rev3-1 was broken at a minimum of three po...

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