論文

2016年6月1日

Sucrose treatment enlarges petal cell size and increases vacuolar sugar concentrations in cut rose flowers

Postharvest Biology and Technology
  • Ryo Norikoshi
  • ,
  • Ryo Norikoshi
  • ,
  • Takehiko Shibata
  • ,
  • Tomoko Niki
  • ,
  • Kazuo Ichimura

116
開始ページ
65
終了ページ
DOI
10.1016/j.postharvbio.2016.01.003

© 2016 Elsevier B.V.Treatment with sucrose promoted petal growth associated with flower opening in cut roses. We investigated the effect of sucrose treatment on cell size and subcellular concentration of soluble carbohydrates in petals of cut rose cv. Sonia flowers. Petals of sucrose-treated flowers, but not control flowers, markedly curved outward, resulting in complete reflection. Petal fresh weight (FW), petal area, and adaxial epidermal cell size in the control flowers increased with time, and treatment with sucrose accelerated this increase, indicating that sucrose promotes petal cell expansion. Glucose, fructose, sucrose, methyl glucoside, and xylose were detected in the petals. In the petals of control flowers, concentration of these carbohydrates, except fructose, decreased. Sucrose treatment markedly increased glucose and fructose concentrations in petals. Estimation of subcellular volumes based on transmission electron micrographs showed that volume of cell walls and vacuoles in the petals of control flowers increased in response to sucrose treatment. Sucrose treatment increased glucose and fructose concentrations in the vacuole and glucose, fructose, and xylose concentrations in the apoplast. We concluded that sucrose treatment increases glucose and fructose concentrations in the vacuole, which may reduce the osmotic potential of the symplast and increase water uptake leading to cell expansion during flower opening.

リンク情報
DOI
https://doi.org/10.1016/j.postharvbio.2016.01.003
J-GLOBAL
https://jglobal.jst.go.jp/detail?JGLOBAL_ID=201602258654550565
URL
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84957818584&origin=inward
ID情報
  • DOI : 10.1016/j.postharvbio.2016.01.003
  • ISSN : 0925-5214
  • J-Global ID : 201602258654550565
  • SCOPUS ID : 84957818584

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