类黄酮
黄烷酮
查尔酮
类黄酮生物合成
糖基化
生物
查尔酮合酶
生物化学
化学
基因
立体化学
转录组
基因表达
抗氧化剂
作者
Xiang Pu,Jia Li,Ziang Guo,Minji Wang,Ming Lei,Sheng‐Tao Yang,Jun Yang,Hanguang Wang,Li Zhang,Qianming Huang
标识
DOI:10.1016/j.synbio.2022.03.007
摘要
Flavonoid metabolism in Camptotheca acuminate remained an untapped area for years. A tandem MS approach was used and focused on the mining and characterizing of flavonoids in mature C. acuminate. Fifteen new flavonoids and forty-three known flavonoids, including fifteen flavone analogs, sixteen flavonol analogs, seven flavanone analogs, six chalcone analogs, four xanthone analogs, ten flavane analogs were mined and identified based on their MS/MS fragments. Fifty-three of them were firstly characterized in C. acuminate. Eight biosynthetic precursors for these flavonoids were also identified. We constructed a specific metabolic map for flavonoids according to their relative contents in the flowers, fruits, stems, and leaves of C. acuminate. Furthermore, the most probable genes involved in chalcone biosynthesis, flavonoid hydroxylation, methylation, and glycosylation were further mined and fished in the gene reservoir of C. acuminate according to their conserved domains and co-expression analysis. These findings enable us to acquire a better understanding of versatile flavonoid metabolism in C. acuminate.
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