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Fan C, Li J, Dai S, Xuan X, Xu D, Wen Y. Plasma Membrane (PM) H +-ATPase Mediates Rhizosphere Acidification and Regulates Herbicide Imazethapyr Toxicity in Wheat. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024. [PMID: 38623691 DOI: 10.1021/acs.jafc.4c00313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
The plasma membrane (PM) H+-ATPase is crucial for a plant defense system. However, there is currently no consensus on whether the PM H+-ATPase plays a role in alleviating the toxic effects of herbicides on nontarget plants. We found that under the herbicide imazethapyr (IM) exposure, PM H+-ATPase activity in wheat roots increased by approximately 69.53%, leading to rhizosphere acidification. When PM H+-ATPase activity is inhibited, the toxicity of IM significantly increases: When exposed to IM alone, the total Fe content of wheat roots decreased by 29.07%, the relative Fe2+ content increased by 27.75%, and the ROS content increased by 27.74%. When the PM H+-ATPase activity was inhibited, the corresponding data under IM exposure were 37.36%, 215%, and 57.68%, respectively. This work delves into the role of PM H+-ATPase in mediating the detoxification mechanism in plants exposed to herbicides, offering new insights into enhancing crop resistance against herbicides.
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Affiliation(s)
- Chenyang Fan
- MOE Key Laboratory of Environmental Remediation & Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jun Li
- MOE Key Laboratory of Environmental Remediation & Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Siyuan Dai
- MOE Key Laboratory of Environmental Remediation & Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xuan Xuan
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, College of Biological and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310015, China
| | - Dongmei Xu
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, College of Biological and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310015, China
| | - Yuezhong Wen
- MOE Key Laboratory of Environmental Remediation & Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
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Vrchovecká S, Amirbekov A, Sázavská T, Arias CA, Jespersen EA, Černík M, Hrabák P. Chemical analysis of wetland plants to evaluate the bioaccumulation and metabolism of hexachlorocyclohexane (HCH). THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 921:171141. [PMID: 38387594 DOI: 10.1016/j.scitotenv.2024.171141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 02/05/2024] [Accepted: 02/19/2024] [Indexed: 02/24/2024]
Abstract
Hexachlorocyclohexanes (HCH) belong to the banned pesticides with short-time production and use during the last century. However, the consequences of this short period are still present as persistent environmental contamination. This study represents the large lab-scale experiment focused on the HCH accumulation and metabolism in selected wetland plants (Juncus effuses, Typha latifolia, Phragmites australis) and trees (Alnus glutinosa) after the exposure to the technical mix of HCH isomers (t-HCH) or δ-HCH at three different concentration. During the three-month exposure, morphological (biomass, height, relative chlorophyll content) and physiological (photosynthetic measurements - photosynthetic rate, stomatal conductance, transpiration and dark transpiration) parameters were measured to assess the HCH effect on plant's growth. The results showed that all selected plant species supported HCH removal from the soil. The total removal efficiency was lower for the t-HCH than for δ-HCH exposure, and the best results were provided by Alnus glutinosa tree. Also, no isomer preference was observed in plants exposed to t-HCH. Most HCH remained accumulated in the root biomass, and mainly α-HCH and δ-HCH were transported to the above-ground parts due to their physicochemical properties. Simultaneously, HCH uptake and metabolization to chlorobenzenes (CB) and chlorophenols (CP) occur. Non-targeted analysis showed that CP could be conjugated to glucose and malonyl in plant tissue, and secondary plant metabolism is affected positively and negatively after exposure to t-HCH depending on plant species and chemical concentration. Luteolin, quercetin and quercetin-3-O-glucoside found common to all species showed quantitative changes due to HCH. Nevertheless, most morphological and physiological parameters were adversely affected without statistical significance. This large-scale study provides information on the fate of HCH in the soil-plant system, the suitability of selected plants and their adaptation to chemical stress for use in the phytoremediation process.
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Affiliation(s)
- Stanislava Vrchovecká
- Institute for Nanomaterials, Advanced Technologies and Innovation (CXI), Technical University of Liberec, Studentska 2, 460 01 Liberec, Czech Republic; Faculty of Mechatronics, Informatics and Interdisciplinary Studies, Technical University of Liberec, Studentska 1402/2, 461 17 Liberec, Czech Republic.
| | - Aday Amirbekov
- Institute for Nanomaterials, Advanced Technologies and Innovation (CXI), Technical University of Liberec, Studentska 2, 460 01 Liberec, Czech Republic; Faculty of Mechatronics, Informatics and Interdisciplinary Studies, Technical University of Liberec, Studentska 1402/2, 461 17 Liberec, Czech Republic
| | - Tereza Sázavská
- Institute for Nanomaterials, Advanced Technologies and Innovation (CXI), Technical University of Liberec, Studentska 2, 460 01 Liberec, Czech Republic
| | - Carlos Alberto Arias
- Department of Biology - Aquatic Biology, Aarhus University, Ole Worms Allé 1, 1135, 227 8000 Aarhus C, Denmark; Aarhus University Centre for Water Technology (WATEC), Ny Munkegade 120, 8000 Aarhus C, Denmark
| | - Emil Arboe Jespersen
- Department of Biology - Aquatic Biology, Aarhus University, Ole Worms Allé 1, 1135, 227 8000 Aarhus C, Denmark
| | - Miroslav Černík
- Institute for Nanomaterials, Advanced Technologies and Innovation (CXI), Technical University of Liberec, Studentska 2, 460 01 Liberec, Czech Republic
| | - Pavel Hrabák
- Institute for Nanomaterials, Advanced Technologies and Innovation (CXI), Technical University of Liberec, Studentska 2, 460 01 Liberec, Czech Republic
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