Evidence for DNA repair after ultraviolet irradiation of Petunia hybrida pollen

Abstract

Ultraviolet irradiation of Petunia hybrida pollen led to an unscheduled labelling of pollen DNA by 3H-thymidine during the early stages of germination. Hydroxyurea increased this DNA labelling, while added boron, required absolutely for pollen germination, tube elongation and tube generative cell mitosis, was not needed for this repair — like DNA synthesis. 
DOI: 10.1007/BF00274181

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