The effect of pollination on ethylene evolution and ACC content in different parts of petunia flowers
Anna Mareczek, Zdzisław Piskornik
Department of Plant Physiology
Faculty of Horticulture, Agricultural University
29 Listopada 54, 31-425 Kraków, Poland
Ethylene evolution and content of 1-aminocyclopropane-1-carboxylic acid (ACC)
in different parts of pollinated and non-pollinated petunia flowers
at four stages of development and senescence were determined.
The greatest amounts of ethylene were produced by the pistil, divided into the stigma, the upper
and basal parts of the style, and the ovary, isolated from pollinated
flowers. The level of ACC was also high in these parts. An increase in ACC
content and ethylene production in the pollinated stigma suggests the
participation of this hormone in processes occurring in the pistil after
pollination. Considerable differences in the amount of ethylene produced
by the corolla and the pistil show that these parts of petunia flowers
differ greatly in their sensitivity to this hormone.
Mareczek A., Piskornik Z., 1994. The effect of pollination on ethylene evolution and
ACC content in different parts of petunia flowers. Folia Horticulturae VI/2: 45-54.