NDLI: Polyamine Metabolism under Different Light Regimes in Wheat

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Polyamine Metabolism under Different Light Regimes in Wheat

Content Provider	MDPI
Author	Imre, Majláth Magda, Pál Gondor, Orsolya Kinga Tajti, Judit Hamow, Kamirán Áron Szalai, Gabriella Janda, Tibor
Copyright Year	2021
Description	Although the relationship between polyamines and photosynthesis has been investigated at several levels, the main aim of this experiment was to test light-intensity-dependent influence of polyamine metabolism with or without exogenous polyamines. First, the effect of the duration of the daily illumination, then the effects of different light intensities (50, 250, and 500 μmol $m^{–2}$ $s^{–1}$) on the polyamine metabolism at metabolite and gene expression levels were investigated. In the second experiment, polyamine treatments, namely putrescine, spermidine and spermine, were also applied. The different light quantities induced different changes in the polyamine metabolism. In the leaves, light distinctly induced the putrescine level and reduced the 1,3-diaminopropane content. Leaves and roots responded differently to the polyamine treatments. Polyamines improved photosynthesis under lower light conditions. Exogenous polyamine treatments influenced the polyamine metabolism differently under individual light regimes. The fine-tuning of the synthesis, back-conversion and terminal catabolism could be responsible for the observed different polyamine metabolism-modulating strategies, leading to successful adaptation to different light conditions.
Starting Page	11717
e-ISSN	14220067
DOI	10.3390/ijms222111717
Journal	International Journal of Molecular Sciences
Issue Number	21
Volume Number	22
Language	English
Publisher	MDPI
Publisher Date	2021-10-29
Access Restriction	Open
Subject Keyword	International Journal of Molecular Sciences Light Intensity Plant Hormones Polyamines Putrescine Spermidine Spermine Wheat
Content Type	Text
Resource Type	Article

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