From plastids to the cytosol:Redefining boundaries for provitamin A biofortification in plants  

作　　者：Shu Yu Cody S.Bekkering Li Tian 

机构地区：[1]Department of Plant Sciences,University of California,Davis,Davis,CA 95616,USA

出　　处：《Molecular Plant》2023年第7期1109-1112,共4页分子植物（英文版）

基　　金：the USDA-NIFA(2017-67013-26164 to L.T.)for research in our group on provitamin A biofortification of wheat grains.

摘　　要：Carotenoids:Importanceand integration ofmicrobial biosyntheticpathwaysin plants Carotenoids are essential molecules found in plants that fulfill critical functions in light capture,photoprotection,and pigmentation.Carotenoids also act as precursors for apocarotenoid signaling compounds including phytohormones such as abscisic acid and strigolactones.Beyond plants,carotenoids play a significant role in humans;particularly,carotenoids possessing unsubstitutedβ-ionone rings can be converted into retinal,the precursor to vitamin A,making their dietary consumption important to human health(Watkins and Pogson,2020;Zheng et al.,2020).Increasing the accumulation of these carotenoid compounds,known as provitamin A carotenoids(PACs),is an important aim in the global endeavor to cultivate biofortified crops with enhanced nutritional quality.The availability of germplasm with variation in carotenoid accumulationis crucial for successful provitamin A biofortification initiatives that use both traditional plantbreeding methods and recently developed molecular biology techniques(Zheng et al.,2020).

关 键 词：SUBSTITUTED converted RINGS 

分 类 号：Q94[生物学—植物学]