不同三角梅品种苞片色彩表型及色素组成分析  

Flower color determination and bract pigment composition analysis of different Bougainvillea spectabilis Willd.varieties

作　　者：康宇乾 杨挺 李雪青[1,4] 李雨欣 张婷婷 王鹏 余文刚[1] 王健[3] 王健[1] 周扬[1,2] Kang Yu-Qian;Yang Ting;Li Xue-Qing;Li Yu-Xin;Zhang Ting-Ting;Wang Peng;Yu Wen-Gang;Wang Jian;Wang Jian;Zhou Yang(School of Horticulture,Hainan University,Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province,Haikou 570228,China;Hainan Key Laboratory for Biotechnology of Salt Tolerant Crops,Haikou 570228,China;School of Forestry,Hainan University,Key Laboratory of Ministry of Education for Genetics and Germplasm Innovation of Tropical Special Trees and Ornamental Plants,Key Laboratory of Germplasm Resources Biology of Tropical Special Ornamental Plants of Hainan Province,Haikou 570228,China;Hainan Dahuqiao Garden Co.,Ltd.,Haikou 571199,China)

机构地区：[1]海南大学园艺学院,海南省热带园艺作物品质调控重点实验室,海口570228 [2]海南省耐盐作物生物技术重点实验室,海口570228 [3]海南大学林学院,热带特色林木花卉遗传与种质创新教育部重点实验室,海南省热带特色花木资源生物学重点实验室,海口570228 [4]海南大湖桥园林股份有限公司,海口571199

出　　处：《植物科学学报》2022年第5期714-723,共10页Plant Science Journal

基　　金：海南省自然科学基金(319MS009);海南省教育厅项目(Qhys2021-245);海南省耐盐作物生物技术重点实验室项目(HD-SYSZX-202107);海南大学科研启动项目(KYQD(ZR)1845)。

摘　　要：三角梅(Bougainvillea spectabilis Willd.)是典型的热带花卉,其苞片色彩丰富,具有重要的观赏价值。为了研究三角梅苞片色彩与色素组成之间的关系,本文使用比色卡和色差仪测量了10个三角梅品种的苞片颜色表型,运用紫外-可见光谱分析对其色素组成进行了鉴定,并进行了定量分析。结果显示,10个三角梅品种可分为5个色系,即白色系、黄色系、橙色系、红色系和紫色系;定量分析结果表明,苞片中色素含量从高到低依次为类黄酮、叶绿素、甜菜色素;色彩表型和色素含量的相关性分析表明,类黄酮、甜菜红素和甜菜黄素是影响三角梅苞片色彩的重要因素。Bougainvillea spectabilis Willd.species are typical tropical flowers of great ornamental value due to their colorful bracts.To study the relationship between bract color and pigment composition in Bougainvillea,the bract color phenotypes of 10 Bougainvillea varieties were measured using a colorimetric card and color difference meter.Pigment composition was identified by ultraviolet-visible(UV-Vis)spectroscopy and quantitatively analyzed.Results showed that the 10 varieties could be divided into five color systems:i.e.,white,yellow,orange,red,and purple.Quantitative analysis showed that bract pigment composition was in the order of flavonoids,chlorophyll,and beet pigment.Correlation analysis of color phenotype and pigment content showed that flavonoids,betacyanin,and betaxanthin were the most important factors affecting the color of Bougainvillea bracts.

关 键 词：三角梅 苞片色彩 色素组成 相关分析 

分 类 号：S682.3[农业科学—观赏园艺]