The Alternative Oxidase Pathway Participates in Seagrass Seedling Establishment by Regulating Photosynthetic and Respiratory Metabolism
文献类型：期刊论文
| 作者 | Zhang, Mengjie1; Zhang, Litao1,3; Li, Hu1; Li, Jing1,2; Luan, Weiying1,2; Li, Zihao1,2; Liu, Jianguo1,3 |
| 刊名 | PHYSIOLOGIA PLANTARUM
 |
| 出版日期 | 2025-05-01 |
| 卷号 | 177期号:3页码:16 |
| 关键词 | alternative oxidase pathway
|
| ISSN号 | 0031-9317 |
| DOI | 10.1111/ppl.70302 |
| 通讯作者 | Liu, Jianguo(jgliu@qdio.ac.cn) |
| 英文摘要 | The roles of the alternative oxidase (AOX) pathway in plant physiology and metabolism are of increasing interest. AOX was found to regulate the growth of Enhalus acoroides seedlings, but its specific mechanism and physiological significance are unclear. In this study, the roles of the AOX pathway during E. acoroides seedling establishment were clarified by investigating the relationships between metabolism and the AOX pathway at the physiological and molecular levels. Results showed that inhibiting the AOX pathway causes the accumulation of reducing equivalents, and further results in the inactivation of the PSII reaction center and destruction of the PSII electron receptor side in E. acoroides seedlings, which decreased photosynthetic activity and increased H2O2 content. Meanwhile, the accumulation of reducing equivalents also restricted mitochondrial respiratory metabolism (including glycolysis, the tricarboxylic acid cycle, the pentose phosphate pathway and oxidative phosphorylation). In addition, when the AOX pathway was inhibited, the gene expressions related to photosynthesis and respiratory metabolism were generally down-regulated. The above results indicate that inhibiting the AOX pathway affected metabolism through disturbing photosynthetic and respiratory metabolic processes, resulting in an inability to satisfy the material (saccharides, proteins, lipids, and nucleotides) and energy requirements of various physiological processes, thus stunting the growth of seagrass seedlings. This study reveals that the AOX pathway accelerates the production of intermediate metabolites in key metabolic pathways through energy redistribution in seagrass, which has a very positive significance for the establishment of seagrass seedlings. |
| WOS关键词 | CARBON ASSIMILATION ; CYTOCHROME-OXIDASE ; PHYSIOLOGICAL-ROLE ; CELLULAR REDOX ; PLANTS ; HOMEOSTASIS ; STRESS ; OXYGEN ; ENZYME ; AOX1A |
| 资助项目 | Natural Science Foundation of Shandong Province[ZR2023QD138] ; Natural Science Foundation of Shandong Province, China[32071577] ; Natural Science Foundation of Shandong Province, China[32201322] ; National Natural Science Foundation of China[XDB42000000] ; Strategic Priority Research Program of the Chinese Academy of Sciences[2021AB34014] ; Guangxi Key R and D Program |
| WOS研究方向 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:001503440900001 |
| 出版者 | WILEY |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/202148]  |
| 专题 | 海洋研究所_实验海洋生物学重点实验室 |
| 通讯作者 | Liu, Jianguo |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Shandong Prov Key Lab Expt Marine Biol, Key Lab Breeding Biotechnol & Sustainable Aquacult, Qingdao, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Qingdao Marine Sci & Technol Ctr, Lab Marine Biol & Biotechnol, Qingdao, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Mengjie,Zhang, Litao,Li, Hu,et al. The Alternative Oxidase Pathway Participates in Seagrass Seedling Establishment by Regulating Photosynthetic and Respiratory Metabolism[J]. PHYSIOLOGIA PLANTARUM,2025,177(3):16. |
| APA | Zhang, Mengjie.,Zhang, Litao.,Li, Hu.,Li, Jing.,Luan, Weiying.,...&Liu, Jianguo.(2025).The Alternative Oxidase Pathway Participates in Seagrass Seedling Establishment by Regulating Photosynthetic and Respiratory Metabolism.PHYSIOLOGIA PLANTARUM,177(3),16. |
| MLA | Zhang, Mengjie,et al."The Alternative Oxidase Pathway Participates in Seagrass Seedling Establishment by Regulating Photosynthetic and Respiratory Metabolism".PHYSIOLOGIA PLANTARUM 177.3(2025):16. |
入库方式： OAI收割
来源：海洋研究所
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