Abiotic stresses, such as drought, salt, extreme temperatures, and heavy metal pollution, are the main environmental factors that limit crop growth and yield. Sorghum, a C4 grass plant with high photosynthetic efficie...Abiotic stresses, such as drought, salt, extreme temperatures, and heavy metal pollution, are the main environmental factors that limit crop growth and yield. Sorghum, a C4 grass plant with high photosynthetic efficiency, can grow in adverse environmental conditions due to its excellent stress resistance characteristics. Therefore, unraveling the stress-resistance mechanism of sorghum could provide a theoretical basis for developing and cultivating various stress-resistant crops. This understanding could also help to create a conducive environment for using marginal soil in agriculture and ensuring food security. In this review, we discuss the adaptation mechanisms of sorghum under drought, salinity, temperature, and soil heavy metal stresses, the specific response to stress, the screening of sorghum-resistant germplasm, and the identification and functional analysis of the relevant genes and quantitative trait loci(QTL). In addition, we discuss the application potential of different stress-tolerant sorghum germplasms reported to date and emphasize the feasibility and potential use in developing and promoting highly stress-tolerant sorghum in marginal soil.展开更多
干旱是限制植物生产力和威胁粮食安全的重要因素之一。高粱(Sorghum bicolor L. Moench)是全球主粮和饲料作物,因其具有较强的抗旱性和能够在恶劣的环境条件下生存而广泛种植于干旱半干旱地区,在作物抗旱领域中具有重要的研究价值。深...干旱是限制植物生产力和威胁粮食安全的重要因素之一。高粱(Sorghum bicolor L. Moench)是全球主粮和饲料作物,因其具有较强的抗旱性和能够在恶劣的环境条件下生存而广泛种植于干旱半干旱地区,在作物抗旱领域中具有重要的研究价值。深入解析干旱胁迫下高粱的形态和生理特性、鉴定和筛选抗旱品种、挖掘相关抗旱基因,对推动高粱抗旱育种进程、提高品种抗旱性、提高产量具有重要意义。本文从干旱胁迫对高粱生长的影响、高粱对干旱胁迫的生理响应、高粱耐旱性鉴定方法和鉴定指标、高粱抗旱性分子生物学和提高高粱抗旱性方法5个方面对高粱抗旱性研究进展进行综述,并对高粱抗旱性研究方向进行展望,以期为进一步研究高粱抗旱的形态、生理特性及分子机制奠定基础。展开更多
基金financial support from the National Key R&D Program of China(2022YFD1201702)the National Natural Science Foundation of China(32272040)the Agricultural Fine Seed Project of Shandong Province,China(2021LZGC006)。
文摘Abiotic stresses, such as drought, salt, extreme temperatures, and heavy metal pollution, are the main environmental factors that limit crop growth and yield. Sorghum, a C4 grass plant with high photosynthetic efficiency, can grow in adverse environmental conditions due to its excellent stress resistance characteristics. Therefore, unraveling the stress-resistance mechanism of sorghum could provide a theoretical basis for developing and cultivating various stress-resistant crops. This understanding could also help to create a conducive environment for using marginal soil in agriculture and ensuring food security. In this review, we discuss the adaptation mechanisms of sorghum under drought, salinity, temperature, and soil heavy metal stresses, the specific response to stress, the screening of sorghum-resistant germplasm, and the identification and functional analysis of the relevant genes and quantitative trait loci(QTL). In addition, we discuss the application potential of different stress-tolerant sorghum germplasms reported to date and emphasize the feasibility and potential use in developing and promoting highly stress-tolerant sorghum in marginal soil.
文摘干旱是限制植物生产力和威胁粮食安全的重要因素之一。高粱(Sorghum bicolor L. Moench)是全球主粮和饲料作物,因其具有较强的抗旱性和能够在恶劣的环境条件下生存而广泛种植于干旱半干旱地区,在作物抗旱领域中具有重要的研究价值。深入解析干旱胁迫下高粱的形态和生理特性、鉴定和筛选抗旱品种、挖掘相关抗旱基因,对推动高粱抗旱育种进程、提高品种抗旱性、提高产量具有重要意义。本文从干旱胁迫对高粱生长的影响、高粱对干旱胁迫的生理响应、高粱耐旱性鉴定方法和鉴定指标、高粱抗旱性分子生物学和提高高粱抗旱性方法5个方面对高粱抗旱性研究进展进行综述,并对高粱抗旱性研究方向进行展望,以期为进一步研究高粱抗旱的形态、生理特性及分子机制奠定基础。
