The invention relates to methods for the specific, transgenic expression
of nucleic acid sequences in non-reproductive flower tissues of plants,
and expression cassettes and expression vectors containing promoters
which have an expression specificity for non-productive tissues of the
flower. The invention also relates to organisms (preferably plants),
cultures, parts, or reproduction material derived therefrom, which are
transformed by means of said transgenic expression cassettes or
expression vectors, and the use thereof for producing food, fodder,
seeds, pharmaceuticals, or fine chemicals.