摘要
氮作为植株生长发育的必需营养元素,其有效吸收与利用对于提高水稻产量和资源利用效率以及环境保护至关重要。根系分泌物是植物根系在吸收水分和养分的同时向周围释放的化合物的总称,其在土壤中会产生根际效应,这与植物的氮素吸收利用密切相关。概述了水稻根系分泌物的种类、功能和产生途径,分析了土壤根际环境及微生物群落结构与组成对氮素吸收与利用的作用,解析了主要根系分泌物对氮素吸收利用的影响,指出了目前存在的问题并对未来的研究进行了展望。
As an essential nutrient element for plant growth and development,the effective uptake and utilization of nitrogen is crucial for improving rice yield and resource use efficiency as well as environmental protection.Root exudates refer to a general term for compounds released by plant roots into the surroundings while absorbing water and nutrients.These exudates have a rhizosphere effect in the soil,which is closely related to the uptake and utilization of nitrogen by plants.The types,functions and production pathways of rice root exudates were summarized.The roles of soil rhizosphere environment and microbial community structure and composition in nitrogen uptake and utilization,and the impacts of major root exudates on nitrogen uptake and utilization were analyzed.The existing problems were pointed out and the future research was prospected.
作者
顾嘉怡
吕欣平
周宇琨
孟庆好
王琛
张瑛
张耗
GU Jiayi;LU Xinping;ZHOU Yukun;MENG Qinghao;WANG Chen;ZHANG Ying;ZHANG Hao(Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology/Jiangsu Co-innovation Center for Modern Production Technology of Grain Crops,Yangzhou University,Yangzhou,Jiangsu,225009,China)
出处
《杂交水稻》
CSCD
北大核心
2024年第4期9-15,共7页
Hybrid Rice
基金
国家重点研发计划课题(2022YFD2300304)
国家自然科学基金项目(32071944)
扬州大学大学生科技创新基金项目(XCX20230643)
江苏高校优势学科建设工程资助项目(PDPA)。
关键词
水稻
根系
分泌物
氮素吸收
微生物
rice
root
exudate
nitrogen uptake
microorganism
