Role of polyamines in peach fruit development and storage

Tree Physiology
Ji-Hong LiuTakaya Moriguchi

Abstract

To investigate the role of polyamines in pre- and post-harvest fruit development of 'Akatsuki' peach (Prunus persica (L.) Batsch.) we measured polyamine concentrations, activities of polyamine biosynthetic enzymes and expression of genes encoding these enzymes. Concentrations of the free polyamines, putrescine (Put), spermidine (Spd) and spermine (Spm) in pre-harvest fruit peaked 16 days after full bloom (DAF) and then progressively decreased until harvest with the exception of Put, which showed a second peak at 94 DAF, just before the onset of ethylene production. In post-harvest fruit, minor changes in concentrations of Spd and Spm were observed, whereas Put concentration peaked on the harvest day, followed by an abrupt decrease and a subsequent 2-fold increase, which was opposite to the fluctuating pattern of ethylene production. Activities of arginine decarboxylase (ADC) and ornithine decarboxylase (ODC) peaked during the first stage of fruit development and then decreased until 80 DAF, after which the activities were below detection limits, suggesting that Put is synthesized during the early stage of fruit development. Activity of S-adenosylmethionine decarboxylase (SAMDC) decreased progressively until the end of S2. Expre...Continue Reading

Citations

Jan 17, 2016·Plant Physiology and Biochemistry : PPB·Georgios TsaniklidisCostas Delis
Jul 21, 2010·Journal of Plant Physiology·Maria C Gomez-JimenezIsabel M Sanchez-Calle
Dec 18, 2013·The Journal of Membrane Biology·Elżbieta Rudolphi-SkórskaMaria Filek
Jul 18, 2014·Journal of Agricultural and Food Chemistry·Huey Fang TehDavid R Appleton
Dec 14, 2018·Frontiers in Plant Science·Willian Batista-SilvaWagner L Araújo
Mar 6, 2021·Frontiers in Plant Science·Fan GaoYuanyue Shen
Oct 1, 2010·Journal of Agricultural and Food Chemistry·Daymi CamejoAna Jiménez

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