OPEN GLUME1: a key enzyme reducing the precursor of JA, participates in carbohydrate transport of lodicules during anthesis in rice
| العنوان: | OPEN GLUME1: a key enzyme reducing the precursor of JA, participates in carbohydrate transport of lodicules during anthesis in rice |
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| المؤلفون: | Qiuyun Lin, Kunneng Zhou, Zhigang Zhao, Xiaohui Li, Di Wang, Ling Jiang, Zhijun Cheng, Erchao Duan, Xiuping Guo, Wuhua Long, Yunlong Wang, Xin Zhang, Jianmin Wan, Yihua Wang, Jiulin Wang, Cailin Lei, Qi Qi, Chuanyin Wu, Chunming Wang |
| المصدر: | Plant Cell Reports. 37:329-346 |
| بيانات النشر: | Springer Science and Business Media LLC, 2017. |
| سنة النشر: | 2017 |
| مصطلحات موضوعية: | 0106 biological sciences, 0301 basic medicine, Oxidoreductases Acting on CH-CH Group Donors, Carbohydrate transport, Mutant, Carbohydrates, Cyclopentanes, Flowers, Plant Science, Biology, 01 natural sciences, 03 medical and health sciences, chemistry.chemical_compound, Anthesis, Gene Expression Regulation, Plant, Botany, Oxylipins, Plant Proteins, Oryza sativa, Jasmonic acid, Glume, Gene Expression Regulation, Developmental, food and beverages, Biological Transport, Oryza, General Medicine, Plants, Genetically Modified, biology.organism_classification, 030104 developmental biology, chemistry, Lodicule, Mutation, Seeds, Plant hormone, Agronomy and Crop Science, 010606 plant biology & botany |
| الوصف: | OG1 is involved in JA-regulated anthesis by modulating carbohydrate transport of lodicules in rice. Flowering plants have evolved a sophisticated regulatory network to coordinate anthesis and maximize reproductive success. In addition to various environmental conditions, the plant hormone jasmonic acid and its derivatives (JAs) are involved in anthesis. However, the underlying mechanism remains largely unexplored. Here, we report a JA-defective mutant in rice (Oryza sativa), namely open glume 1, which has dysfunctional lodicules that lead to open glumes following anthesis. Map-based cloning and subsequent complementation tests confirmed that OG1 encodes a peroxisome-localized 12-oxo-phytodienoic acid reductase-a key enzyme that reduces the precursor of JA. Loss-of-function of OG1 resulted in almost no JA accumulation. Exogenous JA treatment completely rescued the defects caused by the og1 mutation. Further studies revealed that intracellular metabolism was disrupted in the lodicules of og1 mutant. At the mature plant stage, most seeds of the mutant were malformed with significantly reduced starch content. We speculate that JA or JA signaling mediates the carbohydrate transport of lodicules during anthesis, and signal the onset of cell degradation in lodicules after anthesis. We conclude that the OPEN GLUME 1 gene that produces a key enzyme involved in reducing the precursor of JA in JA biosynthesis and is involved in carbohydrate transport underlying normal lodicule function during anthesis in rice. |
| تدمد: | 1432-203X 0721-7714 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::30e4fdadeae9ece54ed87530e34ea8ae https://doi.org/10.1007/s00299-017-2232-y |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi.dedup.....30e4fdadeae9ece54ed87530e34ea8ae |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 1432203X 07217714 |
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