Phytochemistry 32: 551-556 (1993)

The distribution of hydroxycinnamoylputrescines in different organs of Solanum tuberosum and other Solanaceous species

Gerhard Leubner-Metzger and Nikolaus Amrhein

Institute of Plant Sciences, Plant Biochemistry and Physiology, Swiss Federal Institute of Technology, Sonneggstr. 5, CH-8092 Zürich, Switzerland

Received: 25 June 1992

Abstract. The distribution of hydroxycinnamoylputrescines in different organs and developmental stages of seven Solanaceous species was compared. In flowers of Nicotiana tabacum and Lycopersicon esculentum, caffeoylputrescine accumulates in the pistils, whereas in Nicotiana plumbaginifolia and Capsicum annuum it accumulates in the stamens. The accumulation of hydroxycinnamoylputrescines in floral parts is, however, not a general feature of the family Solanaceae, as in potato and Solanum nigrum levels of these compounds remain low in all organs at all stages of development of the plants. In the underground shoot of field grown plants of Solanum tuberosum ssp. tuberosum neither caffeoylputrescine, nor feruloylputrescine, pcoumaroylputrescine or diferuloylputrescine were found to accumulate during tuber development. These results indicate that hydroxycinnamoylputrescines are not likely to be causally involved in the tuberization process of potato plants and in the flowering process of Solanaceae species.

Key Words: Solanum tuberosum, Potato, Tuberization, Solanaceae, Flowering, Hydroxycinnamoylputrescines, Polyamine conjugates, Polyamines.

Article in PDF format (614 KB) Abstract             Fig. 1          Fig. 2          Fig. 3          Table 1          Table 2  

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