Cross-talk interactions of exogenous nitric oxide and sucrose modulates phenylpropanoid metabolism in yellow lupine embryo axes infected with Fusarium oxysporum
Copyright © 2013 The Authors. Published by Elsevier Ireland Ltd.. All rights reserved.
Veröffentlicht in: | Plant science : an international journal of experimental plant biology. - 1985. - 211(2013) vom: 29. Okt., Seite 102-21 |
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1. Verfasser: | |
Weitere Verfasser: | , , , , , |
Format: | Online-Aufsatz |
Sprache: | English |
Veröffentlicht: |
2013
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Zugriff auf das übergeordnete Werk: | Plant science : an international journal of experimental plant biology |
Schlagworte: | Journal Article Research Support, Non-U.S. Gov't +Si+SNP/GSNO +Si−SNP/GSNO +Sn+SNP/GSNO +Sn−SNP/GSNO 0i+SNP/GSNO 0i−SNP/GSNO 0n+SNP/GSNO 0n−SNP/GSNO mehr... |
Zusammenfassung: | Copyright © 2013 The Authors. Published by Elsevier Ireland Ltd.. All rights reserved. The aim of the study was to examine cross-talk of exogenous nitric oxide (NO) and sucrose in the mechanisms of synthesis and accumulation of isoflavonoids in embryo axes of Lupinus luteus L. cv. Juno. It was verified whether the interaction of these molecules can modulate the defense response of axes to infection and development of the pathogenic fungus Fusarium oxysporum f. sp. lupini. Sucrose alone strongly stimulated a high level of genistein glucoside in axes pretreated with exogenous nitric oxide (SNP or GSNO) and non-pretreated axes. As a result of amplification of the signal coming from sucrose and GSNO, high isoflavonoids accumulation was observed (+Sn+GSNO). It needs to be stressed that infection in tissues pretreated with SNP/GSNO and cultured on the medium with sucrose (+Si+SNP/+Si+GSNO) very strongly enhances the accumulation of free isoflavone aglycones. In +Si+SNP axes phenylalanine ammonia-lyase activity was high up to 72h. As early as at 12h in +Si+SNP axes an increase was recorded in gene expression level of the specific isoflavonoid synthesis pathway. At 24h in +Si+SNP axes a very high total antioxidant capacity dependent on the pool of fast antioxidants was noted. Post-infection generation of semiquinone radicals was lower in axes with a high level of sucrose than with a deficit |
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Beschreibung: | Date Completed 10.03.2014 Date Revised 09.01.2024 published: Print-Electronic Citation Status MEDLINE |
ISSN: | 1873-2259 |
DOI: | 10.1016/j.plantsci.2013.07.007 |