Folia Horticulturae

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1-Aminocyclopropane-1-carboxylic acid (ACC) content and ethylene production in various parts of the daffodil (Narcissus pseudonarcissus L.) flower during its development and senescence

Zdzisław Piskornik, Anna Mareczek

Chair of Plant Physiology
Faculty of Horticulture, Agricultural University
29 Listopada 54, 31-425 Kraków, Poland

The content of 1-aminocyclopropane-1-carboxylic acid (ACC) and ethylene evolution in selected parts of pollinated and unpollinated flowers of Narcissus pseudonarcissus L. cv. Dutch Master during different stages of their development and senescence was determined. The changes in intensity of the ethylene evolution were parallel to ACC level changes. Individual parts of the flower differed greatly in levels of both compounds as well as in cell sensitivity to endogenous ethylene. The ACC level and ethylene evolution were much higher in the pollinated flowers. A possible role of ACC as a hypothetical sensitivity or wilting factor is discussed.

Piskornik Z., Mareczek A., 1990. 1-Aminocyclopropane-1-carboxylic acid (ACC) content and ethylene production in various parts of the daffodil (Narcissus pseudonarcissus L.) flower during its development and senescence. Folia Horticulturae II/1: 77-85.