Integrated analysis of transcriptome and metabolome revealed clomazone biodegradation in maize seedlings

Clomazone (CMZ) is a pesticide widely used for weed control in soybean fields. However, its persistence in the environment, including soil, surface water, and groundwater, poses potential risks to subsequent crops and human health. To evaluate the ecotoxicological impacts of CMZ residues on maize gr...

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Main Authors: Guofeng Chen, Jipeng Xu, Jing Wang, Wengong Huang, Feng Liu, Jiannan Dong, Baohai Liu, Dongmei Shi, Aihua Cheng, Hui Liao
Format: Article
Language:English
Published: Elsevier 2025-06-01
Series:Ecotoxicology and Environmental Safety
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Online Access:http://www.sciencedirect.com/science/article/pii/S0147651325006384
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author Guofeng Chen
Jipeng Xu
Jing Wang
Wengong Huang
Feng Liu
Jiannan Dong
Baohai Liu
Dongmei Shi
Aihua Cheng
Hui Liao
author_facet Guofeng Chen
Jipeng Xu
Jing Wang
Wengong Huang
Feng Liu
Jiannan Dong
Baohai Liu
Dongmei Shi
Aihua Cheng
Hui Liao
author_sort Guofeng Chen
collection DOAJ
description Clomazone (CMZ) is a pesticide widely used for weed control in soybean fields. However, its persistence in the environment, including soil, surface water, and groundwater, poses potential risks to subsequent crops and human health. To evaluate the ecotoxicological impacts of CMZ residues on maize growth, a comprehensive study was conducted using integrated transcriptomic and metabolomic analyses of maize seedlings. The results showed that maize seedlings absorb CMZ through the roots and translocate it to the shoots, which led to inhibited growth, reduced chlorophyll content, decreased dry weight, increased electrolyte leakage, and elevated antioxidant enzyme activities. Differentially expressed metabolites (DEMs) and genes (DEGs) were significantly altered in CMZ-stressed maize seedlings, with 1456 DEGs and 1461 DEMs in roots, and 2946 DEGs and 2999 DEMs in shoots. Metabolomic profiling revealed the accumulation of key metabolites involved in CMZ catabolism, including carbohydrates, amino acids, glutathione, and flavonoids. UPLC-Q-TOF/MS analysis identified twelve CMZ transformation products (TPs), which correlated with the activities of DEGs, DEMs, and antioxidant enzymes. These findings indicate that maize seedlings detoxify absorbed CMZ through specific pathways, including decarboxylation, and primarily via canonical phase I and phase II reactions. This study suggests that crops like maize can mitigate the toxicity and residues of CMZ, providing insights for strategies to manage and control CMZ ecotoxicity.
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spelling doaj-art-a119357397dc4d7c85ebbb5276714bba2025-08-20T01:52:42ZengElsevierEcotoxicology and Environmental Safety0147-65132025-06-0129811830210.1016/j.ecoenv.2025.118302Integrated analysis of transcriptome and metabolome revealed clomazone biodegradation in maize seedlingsGuofeng Chen0Jipeng Xu1Jing Wang2Wengong Huang3Feng Liu4Jiannan Dong5Baohai Liu6Dongmei Shi7Aihua Cheng8Hui Liao9Safety and Quality Institute of Agricultural Products, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China; Key Laboratory of Quality and Safety of Cereals and Their Products, State Administration for Market Regulation, ChinaCollege of Life Science and Technology, Harbin Normal University, Harbin 150025, ChinaSafety and Quality Institute of Agricultural Products, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China; Key Laboratory of Quality and Safety of Cereals and Their Products, State Administration for Market Regulation, ChinaSafety and Quality Institute of Agricultural Products, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China; Key Laboratory of Quality and Safety of Cereals and Their Products, State Administration for Market Regulation, ChinaSafety and Quality Institute of Agricultural Products, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China; Key Laboratory of Quality and Safety of Cereals and Their Products, State Administration for Market Regulation, ChinaSafety and Quality Institute of Agricultural Products, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China; Key Laboratory of Quality and Safety of Cereals and Their Products, State Administration for Market Regulation, ChinaSafety and Quality Institute of Agricultural Products, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China; Key Laboratory of Quality and Safety of Cereals and Their Products, State Administration for Market Regulation, ChinaSafety and Quality Institute of Agricultural Products, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China; Key Laboratory of Quality and Safety of Cereals and Their Products, State Administration for Market Regulation, ChinaSafety and Quality Institute of Agricultural Products, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China; Key Laboratory of Quality and Safety of Cereals and Their Products, State Administration for Market Regulation, ChinaSafety and Quality Institute of Agricultural Products, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China; Key Laboratory of Quality and Safety of Cereals and Their Products, State Administration for Market Regulation, China; Corresponding author at: Safety and Quality Institute of Agricultural Products, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China.Clomazone (CMZ) is a pesticide widely used for weed control in soybean fields. However, its persistence in the environment, including soil, surface water, and groundwater, poses potential risks to subsequent crops and human health. To evaluate the ecotoxicological impacts of CMZ residues on maize growth, a comprehensive study was conducted using integrated transcriptomic and metabolomic analyses of maize seedlings. The results showed that maize seedlings absorb CMZ through the roots and translocate it to the shoots, which led to inhibited growth, reduced chlorophyll content, decreased dry weight, increased electrolyte leakage, and elevated antioxidant enzyme activities. Differentially expressed metabolites (DEMs) and genes (DEGs) were significantly altered in CMZ-stressed maize seedlings, with 1456 DEGs and 1461 DEMs in roots, and 2946 DEGs and 2999 DEMs in shoots. Metabolomic profiling revealed the accumulation of key metabolites involved in CMZ catabolism, including carbohydrates, amino acids, glutathione, and flavonoids. UPLC-Q-TOF/MS analysis identified twelve CMZ transformation products (TPs), which correlated with the activities of DEGs, DEMs, and antioxidant enzymes. These findings indicate that maize seedlings detoxify absorbed CMZ through specific pathways, including decarboxylation, and primarily via canonical phase I and phase II reactions. This study suggests that crops like maize can mitigate the toxicity and residues of CMZ, providing insights for strategies to manage and control CMZ ecotoxicity.http://www.sciencedirect.com/science/article/pii/S0147651325006384ClomazoneMaizeMetabolismTranscriptomicMetabolomics
spellingShingle Guofeng Chen
Jipeng Xu
Jing Wang
Wengong Huang
Feng Liu
Jiannan Dong
Baohai Liu
Dongmei Shi
Aihua Cheng
Hui Liao
Integrated analysis of transcriptome and metabolome revealed clomazone biodegradation in maize seedlings
Ecotoxicology and Environmental Safety
Clomazone
Maize
Metabolism
Transcriptomic
Metabolomics
title Integrated analysis of transcriptome and metabolome revealed clomazone biodegradation in maize seedlings
title_full Integrated analysis of transcriptome and metabolome revealed clomazone biodegradation in maize seedlings
title_fullStr Integrated analysis of transcriptome and metabolome revealed clomazone biodegradation in maize seedlings
title_full_unstemmed Integrated analysis of transcriptome and metabolome revealed clomazone biodegradation in maize seedlings
title_short Integrated analysis of transcriptome and metabolome revealed clomazone biodegradation in maize seedlings
title_sort integrated analysis of transcriptome and metabolome revealed clomazone biodegradation in maize seedlings
topic Clomazone
Maize
Metabolism
Transcriptomic
Metabolomics
url http://www.sciencedirect.com/science/article/pii/S0147651325006384
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