Publication Type Journal Article
Title How Salt Stress Represses the Biosynthesis of Marrubiin and Disturbs the Antioxidant Activity of Marrubium Vulgare L
Authors Marwa Rezgui Nessrine Majdoub Sofiene Ben-Kaab Brahim Marzouk Honda Gouia M. Eduarda Araújo Leila Bettaieb Ben-Kaab
Groups HC
Journal POLISH JOURNAL OF ENVIRONMENTAL STUDIES
Year 2017
Month
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Volume 26
Number 1
Pages 267-277
Abstract We investigated the effects of different concentrations of NaCl (25, 50, 100, and 150 mM NaCl) on growth, phenolic content, and antioxidant activities of horehound (Marrubium vulgare L.). The long-term salt treatment (up to 100 mM NaCl) resulted in significant (p<0.05) reduction of height, fresh weight, total chlorophyll, and total phenol contents. The negative effect of NaCl was accompanied by a significant restriction in K+, Ca2+, Fe2+, and Zn2+ ion uptake, and by an increase in Na+ ion concentrations - the effects of which were most pronounced at the highest NaCl level. The content of the main bioactive compound marrubiin decreased with increased NaCl concentrations. The antioxidant activity of the methanol extracts from untreated and salt-treated plants revealed that the extracts from a salt-treated plant with 100 mM exhibits the strongest activity in the DPPH and beta-carotene bleaching assays, while it showed no reducing power. The present results suggest that salt treatment negatively affects the morphological, physiological, and biochemical traits of M. vulgare, which appears to be highly sensitive to salinity.
DOI http://dx.doi.org/10.15244/pjoes/64792
ISBN
Publisher
Book Title
ISSN 1230-1485
EISSN 2083-5906
Conference Name
Bibtex ID ISI:000394830000028
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