摘要
赖氨酸不仅是人类和动物的第一必需氨基酸,而且在维持植物体内氨基酸代谢平衡和生长发育、提高抗逆性与营养品质方面发挥着重要作用。植物赖氨酸合成代谢与吸收运输会直接或间接地影响植株赖氨酸含量及其功能。目前,对植物赖氨酸代谢调控通路的解析已比较清晰,但赖氨酸对植物产生积极影响的分子机理尚不清楚。系统梳理了近些年赖氨酸吸收及其合成代谢途径,重点阐述了赖氨酸吸收与代谢关键基因在植株抗逆性、抗病性、种子萌发和提高作物品质等方面的作用及可能调控机制,以及赖氨酸作物育种策略的研究进展,以期为揭示谷类作物赖氨酸的吸收与代谢调控机制、提高植物抗逆能力和营养品质以及改良培育富赖氨酸作物新品种提供理论依据。
Lysine,a fundamental amino acid crucial for human and animal nutrition,also serves pivotal roles in amino acid homeostasis,growth,development,stress resilience and nutritional quality of plants.The biosynthesis,metabolic processes,absorption and translocation of lysine in plants directly or indirectly affect lysine content and its functions.While the metabolic pathways of lysine in plants have been relatively well characterized,the physiological and molecular mechanisms underlying its beneficial effects on plants remain largely unclear.In this paper,the recent advancements in understanding the roles and potential regulatory mechanisms of key genes involved in lysine uptake and metabolic pathways in plants were summarized,and the roles and possible regulatory mechanisms of key lysine absorption and metabolism genes in plant stress resistance,disease resistance,seed germination and improvement of crop quality were particularly elabrcted.Additionally,it reviewed the progress in breeding lysine-rich crops.Above results offered valuable insights and guidelines for elucidating the mechanisms regulating lysine transport and metabolism in cereal crops,thereby enhancing stress tolerance and fostering the development of novel lysineenriched crop varieties.
作者
王可欣
董月华
何炫颐
杨怀玉
WANG Kexin;DONG Yuehua;HE Xuanyi;YANG Huaiyu(College of Resources and Environment,Southwest University,Chongqing 400716,China;Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin,Southwest University,Chongqing 400716,China;Ginseng and Antler Office of Jilin Province,Changchun 130022,China)
出处
《中国农业科技导报(中英文)》
北大核心
2025年第7期20-29,共10页
Journal of Agricultural Science and Technology
基金
国家重点研发计划项目(2022YFD1900702)
国家自然科学基金项目(32272805)
西南大学科研启动基金项目(SWU019012)。
