Metabolic engineering of antioxidants in sweetpotato

摘要：

Orange gene(IbOr) involved in carotenoid biosynthesis was isolated from the storage roots of yellow-fleshed sweetpotato(Ipomoea batatas L.cv.Sinwhangmi) and characterized.The deduced IbOr showed a 97％ identity with a putative orange gene from morning glory(I.nil).The IbOr also shared greater than 70％ homology with various plant orange genes and had a well-known feature of Cys-rich zinc finger domain specific to DnaJ-like molecular chaperones.IbOr was expressed predominantly in leaves and fibrous roots of sweetpotato.We investigated the expression patterns of genes related to carotenoid biosynthesis and IbOr gene in response to various hormone treatments.We also cloned IbMYB1 cDNA from purple-fleshed sweetpotato(cv.Sinjami),which is responsible for anthocyanin biosynthesis.

关键词： Anthocyanin Antioxidants Carotenoids Metabolic engineering Orange gene

作者: Young Ock Ahn Sun Ha Kim Cha Young Kim Joon-Seol Lee Haeng-Soon Lee Sang-Soo Kwak

作者单位: Environmental Biotechnology Research Center,Korea Research Institute of Bioscience and Biotechnology Mokpo Experiment Station,National Institute of Crop Science(NICS),Rural Development Administration(R

会议类型: 国际会议

会议名称: 3rd China-Japan-Korea Workshop on Sweetpotato(第三届中日韩甘薯学术研讨会)

会议地点: 北京

会议语种:英文

页码: 298-300

在线出版日期: 2008-10-12（万方平台首次上网日期，不代表论文的发表时间）