• Home
  • Archives
    • Archive 2020
      • Volume 01/2020
    • Archive 2019
      • Volume 01/2019
      • Volume 02/2019
    • Archive 2018
      • Volume 01/2018
    • Archive 2017
      • Volume 01/2017
    • Archive 2016
      • Volume 01/2016
      • Volume 02/2016
    • Archive 2015
      • Volume 01/2015
      • Volume 02/2015
    • Archive 2014
      • Volume 01/2014
      • Volume 02/2014
    • Archive 2013
      • Volume 01/2013
      • Volume 02/2013
    • Archive 2012
      • Volume 01/2012
      • Volume 02/2012
    • Archive 2011
      • Volume 01/2011
  • List of keywords
  • Submissions
    • Guidelines for Authors
    • Publication Ethics
  • Editorial Board
  • Contacts
MASO-INTERNATIONAL

Effect of ethylene on antioxidant enzymes activity in ethylene-insensitive cut roses (rosa hybrida l.)

Authors: Faezeh Khatami, Farzaneh Najafi, Fataneh Yari and Ramazan Ali Khavari-Nejad
Keywords: antioxidant enzyme, cut roses, ethylene

Cut roses (Rosa hybrida L.) have been classified as ethylene-sensitive, but the nature of the ethylene sensitivity changes in these flowers has not been well characterized. Therefore, in this work, ethylene-insensitive cut roses consisting etr1-1 gene were evaluated. Cut roses prepared from an isolated greenhouse at commercial stage, after transferring to the laboratory, were compared regarding the content of antioxidant enzymes by ethylene treatment (0, 0.5 and 1 μl l-1). Evaluations were carried out in wild type and transgenic line in bud and half-open stages. The research was performed in completely randomized factorial design by four replicates. After measuring and applying the statistical differences at the P ≤ 0.05 level via SAS software was done. The results showed that ethylene significantly increased superoxide dismutase, catalase and guaiacol peroxidase activities in bud and half-open stages in wild type and transgenic line. Maximum antioxidant enzymes activity was observed in wild type roses in bud and half-open stages treated by 1 μl l-1 ethylene which had a significant difference in comparison with the same stage in transgenic line. According to the increasing trend of these enzymes activities in wild type and transgenic lines with higher concentrations of ethylene, it seems that, ethylene by inducing senescence oxidative damage could accelerate flower senescence. Therefore, genetic manipulation of ethylene receptor genes of ethylene-sensitive flowers as well as roses could decrease oxidatve stress during senescence and considerably improved longevity.

Download full article
202001 47-50
Filename: 202001_47-50.pdf | Size: 433.8 KB | Downloads: 466
Originaly published in MASO INTERNATIONAL Volume 01/2020

Search site

Current Issue

Current issue

MASO INTERNATIONAL 1/2020
ISSN 1805-5281 (printed)
ISSN 1805-529X (online)

Archive

Copyright © 2025 MASO-INTERNATIONAL.