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Role of Heme Oxygenase-1 in Dual Stress Response of Herbicide and Micronutrient Fe in . | LitMetric

Role of Heme Oxygenase-1 in Dual Stress Response of Herbicide and Micronutrient Fe in .

J Agric Food Chem

MOE Key Laboratory of Environmental Remediation & Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.

Published: October 2022

AI Article Synopsis

Article Abstract

Increasingly intensive agricultural practices are leading not only to herbicide contamination but also to nutritional stress on nontarget plants. This study evaluated the role of heme oxygenase-1 (HO-1) in the dual stress response of herbicide dichlorprop and micronutrient Fe in . Our results revealed that co-treatment with 20 μM zinc protoporphyrin (a specific inhibitor of HO-1) reduced the activity of HO-1 by 21.6%, Fe content by 19.8%, and MDA content by 20.0%, reducing abnormal iron aggregation and oxidative stress in response to the herbicide compared to treatment with ()-dichloroprop alone, which has herbicidal activity. Thus, free Fe released from HO-1 mediated dichlorprop-induced oxidative stress in the Fenton reaction and affected aberrant Fe aggregation, which also had an enantioselective effect. This study contributes to an in-depth understanding of the toxicity mechanism of herbicides under nutrient stresses, thus providing new strategies to control the environmental risks of herbicides.

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Source
http://dx.doi.org/10.1021/acs.jafc.2c04039DOI Listing

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