Trehalose delays senescence in cut Gladiolus spikes

M. Otsubo, M. Iwaya-Inoue

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

Florets of cut gladiolus (Gladiolus xgrandiflora hort. cv. Fujinoyuki) spikes kept at 25 °C under 14 h light/10 h dark condition showed severe wilting 4 days after flower opening. Treatment with 0.1 M trehalose prolonged vase-life 2 days, whereas inhibitors and other sugars had no effect. The upper florets also opened properly in trehalose-treated spikes, but not in cycloheximide-treated ones. After 4 days, the first florets of trehalose-treated spikes maintained water content more effectively than did controls or spikes treated with other sugars. The parenchyma adjacent to vascular bundles in the petals of trehalose-treated spikes maintained viability for 4 days. These results suggest that trehalose preserves cell viability in gladiolus spikes, thereby enhancing water uptake into petal tissues.

Original languageEnglish
Pages (from-to)1107-1110
Number of pages4
JournalHortScience
Volume35
Issue number6
DOIs
Publication statusPublished - 2000

All Science Journal Classification (ASJC) codes

  • Horticulture

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