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The effects of putrescine are partly overlapping with osmotic stress processes in wheat.

Authors :
Pál, Magda
Majláth, Imre
Németh, Edit
Hamow, Kamirán Áron
Szalai, Gabriella
Rudnóy, Szabolcs
Balassa, György
Janda, Tibor
Source :
Plant Science. Mar2018, Vol. 268, p67-76. 10p.
Publication Year :
2018

Abstract

Polyamine metabolism is in relation with several metabolic pathways and linked with plant hormones or signalling molecules; in addition polyamines may modulate the up- or down-regulation of gene expression. However the precise mechanism by which polyamines act at the transcription level is still unclear. In the present study the modifying effect of putrescine pre-treatment has been investigated using the microarray transcriptome profile analysis under the conditions where exogenous putrescine alleviated osmotic stress in wheat plants. Pre-treatment with putrescine induced the unique expression of various general stress-related genes. Although there were obvious differences between the effects of putrescine and polyethylene glycol treatments, there was also a remarkable overlap between the effects of putrescine and osmotic stress responses in wheat plants, suggesting that putrescine has already induced acclimation processes under control conditions. The fatty acid composition in certain lipid fractions and the antioxidant enzyme activities have also been specifically changed under osmotic stress conditions or after treatment with putrescine. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
01689452
Volume :
268
Database :
Academic Search Index
Journal :
Plant Science
Publication Type :
Academic Journal
Accession number :
127469021
Full Text :
https://doi.org/10.1016/j.plantsci.2017.12.011