Integrated Metabolomic and Transcriptomic Analysis of Antimony (Sb) Stress Response in Common Bermudagrass ( Cynodon dactylon [L.] Pers.)

Qian Liu, Maryam Noor, Yuanhang Xiang, Yao Chen, Shang Gao, Fangming Wu, Xiaoqin Li, Xutong Hu, Xuebing Yan, Bing Wen () and Jibiao Fan ()
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Qian Liu: College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
Maryam Noor: College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
Yuanhang Xiang: College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
Yao Chen: College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
Shang Gao: State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment of China, Nanjing 210042, China
Fangming Wu: College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
Xiaoqin Li: College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
Xutong Hu: Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
Xuebing Yan: College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
Bing Wen: State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment of China, Nanjing 210042, China
Jibiao Fan: College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China

Agriculture, 2025, vol. 15, issue 21, 1-16

Abstract: Antimony (Sb) is a toxic metalloid and has become an increasingly prevalent contaminant in ecosystems. Previous studies have reported that Sb has severe toxic effects on plant growth. However, the molecular mechanisms of the response to Sb stress in plants still remain unclear. In the present study, common bermudagrass ( Cynodon dactylon [L.] Pers.), ‘Yangjiang’ cultivar, was treated with 200 mg/mL of antimony potassium tartrate solution. Integrated metabolomic and transcriptomic analysis was conducted to investigate the mechanisms of the Sb stress response of bermudagrass. The results showed that, after Sb stress treatment, soluble protein content, malondialdehyde (MDA) content, and catalase (CAT) activity increased by 180.56%, 280%, and 112.61%, respectively, compared to the control. Meanwhile, transcriptomic and metabolomic analyses identified numerous differentially expressed genes (DEGs) and differentially accumulated metabolites (DAMs) that were involved in the Sb stress response of bermudagrass, and many pathways, such as the carbon metabolism, photosynthesis and alanine, aspartate, and glutamate metabolism pathways, were also identified to be related to the Sb stress response of the bermudagrass plant by KEGG and GO enrichment. Overall, the present study revealed that photosynthesis and amino acid metabolism pathways play important roles in the Sb stress response of bermudagrass.

Keywords: bermudagrass; heavy metal stress; response mechanisms; photosynthesis; amino acid metabolism (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2025
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