Influence of Soil Properties and Aging on Antimony Toxicity for Barley Root Elongation.

Influence of Soil Properties and Aging on Antimony Toxicity for Barley Root Elongation.
Bull Environ Contam Toxicol. 2020 Apr 08;:
Authors: Zhang P, Wu TL, Ata-Ul-Karim ST, Ge YY, Cui X, Zhou DM, Wang YJ
Abstract
The study explored the Sb toxicity by investigating the impacts of 10% and 20% effective concentrations (EC10 and EC20, respectively) of Sb on the inhibition of barley root elongation in 21 Chinese soils with a wide range of physicochemical properties after aging for 3 months. The results demonstrated that various soil properties profoundly influenced the Sb toxicity which was ranged from 201-2506 mg Sb kg-1 to 323-2973 mg Sb kg-1 under EC10 and EC20, respectively. Soil sand fraction was a significant soil factor responsible for elevating Sb bioavailability. The bioavailable Sb concentration accounted for 2.08%-11.94% of total Sb content in all 21 soil samples and the decreased Sb bioavailability in this study was attributed to soil properties including soil clay fraction, amorphous and crystalloid iron, and oxides of manganese and aluminum. The findings would contribute in developing Sb toxicity threshold for establishing standard for Sb regulation in crop production.
PMID: 32270217 [PubMed - as supplied by publisher]

Source: Bulletin of Environmental Contamination and Toxicology - April 7, 2020 Category: Environmental Health Authors: Zhang P, Wu TL, Ata-Ul-Karim ST, Ge YY, Cui X, Zhou DM, Wang YJ Tags: Bull Environ Contam Toxicol Source Type: research