编号 040021701

推送时间 20191216

研究领域 森林培育 

年份 2019 

类型 期刊 

语种 英语

标题 Vitamin E in Plants: Biosynthesis, Transport, and Function

来源期刊 Trends in Plant Science

期 第217期

发表时间 20191101

关键词 antioxidants;  chloroplasts;  retrograde signaling;  tocopherols;  tocotrienols;  Vitamin E; 

摘要 Vitamin E, which includes both tocopherols and tocotrienols, comprises lipid-soluble antioxidants that modulate lipid peroxidation. Recently, significant advances have been made in our understanding of vitamin E biosynthesis, transport, and function. The phytyl moiety from chlorophyll degradation is used for tocopherol biosynthesis. An α-tocopherol-binding protein (TBP) has been identified in tomato (SlTBP) serving in intraorganellar vitamin E transport in plants. Moreover, α-tocopherol not only scavenges free radicals through flip-flop movements in the lipid bilayer, but may also contribute to fine-tuning the transmission of specific signals outside chloroplasts. Vitamin E, and α-tocopherol in particular, appear to be essential for plant development and help to provide the most suitable response to a number of environmental stresses.

服务人员 孙小满

PDF文件 浏览全文