Changes by cadmium stress in lipid peroxidation and activities of lipoxygenase and antioxidant enzymes in Arabidopsis are associated with extracellular ATP
| Autor: | Hanqing Feng, Ling-yun Jia, Jun-yu Liang, Jing Wen, Rong-fang Wang, Dai-long Shi, Qing-wen Wang, Qin-zheng Hou, Guang-ji Ye |
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| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
0301 basic medicine Antioxidant medicine.medical_treatment Plant Science 01 natural sciences Biochemistry Lipid peroxidation Superoxide dismutase 03 medical and health sciences Lipoxygenase chemistry.chemical_compound Genetics medicine Extracellular Molecular Biology Ecology Evolution Behavior and Systematics chemistry.chemical_classification biology Chemistry Cell Biology 030104 developmental biology Enzyme Catalase biology.protein lipids (amino acids peptides and proteins) Animal Science and Zoology 010606 plant biology & botany Peroxidase |
| Zdroj: | Biologia. 72:1467-1474 |
| ISSN: | 1336-9563 0006-3088 |
| DOI: | 10.1515/biolog-2017-0176 |
| Popis: | Exposure of Arabidopsis leaves to cadmium (Cd) stress led to an increase in the level of extracellular ATP (eATP). And, Cd stress also caused significant increases in lipid peroxidation and the activities of lipoxygenase (LOX) and antioxidant enzymes, including superoxide dismutase (SOD), peroxidase (POX), and catalase (CAT). Treatment of Arabidopsis leaves with β,γ-methyleneadenosine 5’-triphosphate (AMP-PCP), which serves as a competitive inhibitor of eATP, dampened the Cd-induced increases of lipid peroxidation and the activities of LOX and antioxidant enzymes. Under Cd stress, the leaves of dorn 1–3 mutant showed lower levels of lipid peroxidation and activities of LOX and antioxidant enzymes compared with those of wild type plants. These results suggest that the changes in lipid peroxidation and activities of LOX and antioxidant enzymes under Cd stress could be associated with eATP. |
| Databáze: | OpenAIRE |
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