Changes in 1-aminocyclopropane-1-carboxylic-acid content of cut carnation flowers in relation to their senescence |
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Authors: | G Bufler Y Mor M S Reid S F Yang |
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Institution: | (1) Department of Environmental Horticulture, University of California, 95616 Davis, CA, USA;(2) Present address: Department of Ornamental Horticulture, Hebrew University of Jerusalem, Jerusalem, Israel |
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Abstract: | The rise in ethylene production accompanying the respiration climacteric and senescence of cut carnation flowers (Dianthus caryophyllus L. cv. White Sim) was associated with a 30-fold increase in the concentration of 1-aminocyclopropane-1-carboxylic acid (ACC) in the petals (initial content 0.3 nmol/g fresh weight). Pretreatment of the flowers with silver thiosulfate (STS) retarded flower senescence and prevented the increase in ACC concentration in the petals. An increase in ACC in the remaining flower parts, which appeared to precede the increase in the petals, was only partially prevented by the STS pretreatment. Addition of aminoxyacetic acid (2 mM) to the solution in which the flowers were kept completely inhibited accumulation of ACC in all flower parts.Abbreviations ACC
1-aminocyclopropane-1-carboxylic acid
- AOA
-aminoxyacetic acid
- STS
silver thiosulfate complex |
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Keywords: | 1-Aminocyclopropane-1-carboxylic acid Dianthus-Ethylene synthesis Flower (senescence) Senescence (flowers) |
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