Role of the auxin action in the flowering of gladiolus, and its application for preserve of flower freshness.

2016 Fiscal Year Final Research Report

• Project/Area Number: 26450046
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Horticultural science
• Research Institution: National Agriculture and Food Research Organization
• Principal Investigator: SOENO Kazuo 国立研究開発法人農業・食品産業技術総合研究機構, 西日本農業研究センター 傾斜地園芸研究領域, 上級研究員 (50392006)
• Co-Investigator(Renkei-kenkyūsha): SHIMADA Yukihisa 公立大学法人横浜市立大学, 学術院国際総合科学群 大学院生命ナノシステム科学研究科, 教授 (30300875)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: オーキシン / 生合成阻害剤 / グラジオラス / 開花制御 / 鮮度保持 / エチレン生合成

Outline of Final Research Achievements

In this study, to verify the biosynthesis pathway and physiological role of auxin in the flowering of gladiolus, exogenous application of novel auxin-biosynthesis inhibitors were examined.
The result revealed that indole-3-pyruvic acid pathway has been suggested as a major biosynthesis pathway in the flowering of gladiolus floret. Application of the auxin-biosynthesis inhibitors showed reduced endogenous indole-3-acetic acid (IAA) content and ethylene production in flowering of gladiolus floret. These results suggested that reduced IAA content may suppress growth and hypertrophy, and reduced ethylene production may suppress aging in the floret of gladiolus.

Free Research Field

生物有機化学