Alleviation of chromium toxicity by glycinebetaine is related to elevated antioxidant enzymes and suppressed chromium uptake and oxidative stress in wheat (Triticum aestivum L.)

Environmental Science and Pollution Research International
Shafaqat AliShakeel Ahmad Anjum

Abstract

Little information is available on the role of glycinebetaine (GB) in chromium (Cr) tolerance while Cr toxicity is widespread problem in crops grown on Cr-contaminated soils. In this study, we investigated the influence of GB on Cr tolerance in wheat (Triticum aestivum L.) grown in sand and soil mediums. Three concentrations of chromium (0, 0.25, and 0.5 mM) were tested with and without foliar application of GB (0.1 M). Chromium alone led to a significant growth inhibition and content of chlorophyll a, b, proteins and enhanced the activity of antioxidant enzymes. Glycinebetaine foliar application successfully alleviated the toxic effects of Cr on wheat plants and enhanced growth characteristics, biomass, proteins, and chlorophyll contents. Glycinebetaine also reduced Cr accumulation in wheat plants especially in grains and enhanced the activity of antioxidant enzymes in both shoots and roots. This study provides evidence that GB application contributes to decreased Cr concentrations in wheat plants and its importance in the detoxification of heavy metals.

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Citations

Jan 10, 2016·Ecotoxicology and Environmental Safety·Hafiz Muhammad TauqeerGhulam Hassan Abbasi
Nov 5, 2015·Environmental Science and Pollution Research International·Muhammad RizwanYong Sik Ok
Jun 24, 2015·Ecotoxicology and Environmental Safety·Ihsan Elahi ZaheerRehan Ahmad
Sep 4, 2015·Environmental Science and Pollution Research International·Muhammad RizwanFarhat Abbas
Jun 26, 2015·Environmental Science and Pollution Research International·Muhammad Zia-ur RehmanMuhammad Farooq Qayyum
May 26, 2015·Ecotoxicology and Environmental Safety·Muhammad AdreesMuhammad Kashif Irshad
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Jun 15, 2020·Environmental Science and Pollution Research International·Muhammad Adnan TariqShafaqat Ali
Jun 11, 2017·Environmental Science and Pollution Research International·Rasham Sallah-Ud-DinSyed Asad Hussain Bukhari
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