| Research progress on physiological and molecular responses of Sesamum indicum L. to drought stress |
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| DOI：10.7606/j.issn.1000-7601.2025.04.29 |
| Key Words: Sesame indicum L. drought stress physiological and biochemical response molecular mechanism genetic improvement drought\|resistant breeding |
| Author Name | Affiliation | | AN Qiyuan | Liaoning Research Institute of Cash Crops, Liaoyang, Liaoning 111000, China | | CHENG Hongsen | Liaoning Research Institute of Cash Crops, Liaoyang, Liaoning 111000, China | | SUN Huijie | Liaoning Research Institute of Cash Crops, Liaoyang, Liaoning 111000, China | | NA Yanbin | Liaoning Research Institute of Cash Crops, Liaoyang, Liaoning 111000, China | | GAO Dexue | Liaoning Research Institute of Cash Crops, Liaoyang, Liaoning 111000, China |
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| Abstract: |
| Sesame (Sesamum indicum L.), a crop with a shallow root system, exhibits high sensitivity to abiotic stresses such as drought and waterlogging. The frequent occurrence of drought disasters has severely impacted the growth, flowering, capsule development, and seed formation of sesame, leading to significant yield reductions. Drought has emerged as a primary factor affecting sesame productivity. This paper first reviewed the effects of drought stress on sesame seed germination, seedling growth, yield, and seed quality and delved into the physiological and biochemical response mechanisms of sesame under drought stress, including changes in root growth regulation, osmotic adjustment system, antioxidant system, photosynthetic system, and the expression of important resistance genes. Secondly, it summarized the research progress on drought tolerance of sesame at home and abroad, including the response differences of different sesame varieties to drought stress, molecular response mechanisms, and the role of exogenous substances in improving the drought tolerance of sesame, as well as the analysis of the genetic basis of sesame drought resistance based on high\|throughput sequencing, transcriptomics, metabolomics, and other multi\|omics technologies. Finally, it looked forward to the future development direction. Through gene editing and precision breeding technologies, it is expected to accelerate the selection and promotion of new drought\|tolerant sesame varieties and improve the productivity and stability of sesame in drought\|prone areas. |
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