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The Plant Cell
A chimeric toxic gene consisting of the diphtheria toxin A chain gene fused to a promoter previously shown to direct pistiland anther-specific expression was used to genetically target cell killing in transgenic Arabidopsis. Flowers of Arabidopsis transformants that carried the toxic gene fusion had distinct structural defects. The papillar cells at the stigma surface were stunted and were biosynthetically inactive. Anther development was also impaired by toxic gene expression, leading todoi:10.1105/tpc.5.3.253 pmid:12271062 fatcat:tljnkrlstzee7k5gi4r33msani