Regulation of ethylene biosynthesis by nitric oxide and thidiazuron during postharvest of rose

Dynamic Chiropractic

Rouh-Angiz Naderi¹  Seyyedeh-Farahnaz Talebi²  Seyyed Najmedin Mortazavi³ 

[1] Department of Horticultural Science, Faculty of Agriculture, Shahed University, Tehran, Iran.;Department of Horticultural Science, University of Tehran, Iran.;Department of Horticultural Science, Zanjan University, Iran.

关键词: Rose;    nitric oxide;    thidiazuron;    ethylene biosynthesis;    postharvest.;   

DOI  :  

学科分类：医学（综合）

来源: MPA Media

【 摘 要 】

Nitric oxide (NO) and thidiazuron (TDZ) have been shown to extend the postharvest life of a range of flowers possibly by downregulating ethylene production.In this study, we have evaluated the effect of sodium nitroprusside (SNP), a nitric oxide donor and thidiazuron on postharvest senescence of cutRosaflower.Therefore, we examined the effects ofSNP and TDZon itsethylene productionand shelf life.Flowers were treated for 24 hwith 0, 20,40 µmol.L-1TDZ and0, 20,40, 60 µmol L-1SNP and thenheld in the solution, 8-HQS at 300 ppmcombination with 1% sucrose.Treatment withNO and TDZdelayed the ethylene productionandprolonged shelf life.It was observed that,treating withNO and TDZat a40 µMol.L-1concentration and40 µM.L-1TDZ with 40 µM.L-1SNPdecreased ethylene productionand senescence of floweres.SNP at 60 µMol.L-1harmed the flowers. It was suggested that NO and TDZ could decrease ethylene output, by inhibiting ACC synthase activity and reducing ACC content.

【 授权许可】

Unknown