不同花色洋紫荆花瓣花青素和类黄酮物质组成和含量的变化  

Composition and content of anthocyanins and flavonoids in purple-red,pink,and white petals of Bauhinia variegata L.

作　　者：陈勇 李嘉杰 郑丹菁 罗树凯 孟诗原 钱磊 代色平 Chen Yong;Li Jiajie;Zheng Danjing;Luo Shukai;Meng Shiyuan;Qian Lei;Dai Seping(Guangzhou Institute of Forestry and Landscape Architecture,Guangdong Guangzhou National Urban Forestry Science and Technology Demonstration Park,Guangzhou 510405,China)

机构地区：[1]广州市林业和园林科学研究院,广东广州国家城市林业科技示范园区,广州510405

出　　处：《植物科学学报》2024年第1期96-103,共8页Plant Science Journal

基　　金：广东省基础与应用基础研究基金项目(2021A1515010997)。

摘　　要：本研究选择3种不同花色的洋紫荆(Bauhinia variegata L.)为实验材料,应用LC-MS/MS技术分析花青素和类黄酮物质,比较不同花色洋紫荆之间的差异。结果显示,洋紫荆有53种花青素和340种类黄酮物质。不同花色洋紫荆花瓣中的花青素差异较大,紫红色花中的锦葵色素-3-O-半乳糖苷、锦葵色素-3-O-葡萄糖苷、飞燕草素-3-O-半乳糖苷等含量较高,粉红色花中的飞燕草素-3-O-对香豆酰葡萄糖苷、锦葵色素-3-O-槐糖苷、矮牵牛素-3-O-对香豆酰葡萄糖苷、锦葵色素-3-O-桑布双糖苷-5-葡萄糖苷等含量较高,白色花中的天竺葵素-3-O-对香豆酰葡萄糖苷等含量较高。白色花中几乎不含天竺葵素-3-O-桑布双糖苷、天竺葵素-3-O-槐糖苷、飞燕草素-3-O-桑布双糖苷等。紫红色花中几乎不含飞燕草素-3-O-槐糖苷。不同花色洋紫荆花瓣中的类黄酮差异较大,粉红色花中的芍药花素-3-O-葡萄糖苷、芍药花素-3,5-O-二葡萄糖苷、金圣草黄素-7-O-芸香糖苷-5-O-葡萄糖苷、异牡荆素-7-O-(6’’-芥子酰)葡萄糖苷等含量较白色、紫红色花高。The composition,content,and structure of anthocyanins and flavonoids in purple-red,pink,and white petals of Bauhinia variegata L.were studied to lay a foundation for further investigations of the floral pigment mechanisms and molecular breeding of this species.The anthocyanins and flavonoids were analyzed using liquid chromatography-mass spectrometry(LC-MS/MS).In total,53 anthocyanins and 340 flavonoids were detected.However,the anthocyanins were markedly different among the different colored petals.Malvidin-3-O-galactoside,malvidin-3-O-glucoside,delphinidin-3-O-galactoside were higher in the purple-red petals than in the white and pink petals.Delphinidin-3-O-(coumaryl)-glucoside,malvidin-3-O-sophoroside,petunidin-3-O-(coumaryl)-glucoside were higher in the pink petals than in the purple-red and white petals.Pelargonidin-3-O-(coumaryl)-glucoside was higher in the white petals than in the purple-red and pink petals.The flavonoids also differed significantly among the different petals.Pelargonidin-3-O-sambubioside-5-O-glucoside,pelargonidin-3-O-sophoroside,and delphinidin-3-O-sambubioside were almost not detected in the white petals and delphinidin-3-O-sophoroside was almost not detected in the purple-red petals,while peonidin-3-O-glucoside,peonidin-3,5-O-diglucoside,chrysoeriol-7-O-rutinoside-5-O-glucoside,and isovitexin-7-O-(6''-sinapoyl)glucoside were higher in the pink than in the white and purple-red petals.

关 键 词：洋紫荆 花青素 类黄酮物质 花色 

分 类 号：S685.99[农业科学—观赏园艺]