广西植物2026，Vol.46Issue(2)：220-234,15.DOI:10.11931/guihaia.gxzw202503047
滇山茶品种的花色性状分类及花瓣理化因子分析
Classification of flower color traits and analysis of petal physicochemical factors in Camellia reticulata cultivars
摘要
Abstract
Camellia reticulata is an important winter-flowering tree species in southwestern China,known for the characteristics of tall tree structure and brightly colored flowers.To explore the mechanism of flower color formation in C.reticulata,this study used germplasms of different flower colors as experimental materials.Various physicochemical indicators were measured,including petal color parameters,cellular pH,metal ion content,total anthocyanin content,total flavonoid content,and total carotenoid content.Methods such as significance difference comparison and correlation analysis were employed to comprehensively analyze the relationship between flower color phenotypes and physicochemical factors in C.reticulata.The results were as follows:(1)Using the CIEL*a*b*color system,the flower colors of C.reticulata could be classified into five color series,as reddish-purple,red,pinkish-purple,light-pink,and white.This method effectively distinguished and quantitatively described the flower color phenotypes.(2)Relationship between physicochemical factors and flower color was complex.The pH of petal cell sap ranged from 3.48 to 4.46,indicating an acidic intracellular environment,which might help maintain the stability of anthocyanins in the petals.The content of eight metal ions varied significantly among petals of different color series and showed significant correlations with flower color phenotype data and pigment content.(3)Significant differences were observed in the content of total flavonoids,total anthocyanins,and total carotenoids among petals of different colors.Total flavonoids were highest in'Tongzimian',while total anthocyanins and total carotenoids were all the highest in'Zhushazipao',which had the darkest flower color phenotype.In conclusion,anthocyanin content in petals is correlated with flower color phenotype.Flavonoids may participate in flower coloration through copigmentation,and different types of pigments likely collectively regulate the flower color of C.reticulata in specific proportions.Cytoplastic pH and metal ions are involved in the flower coloration process and play positive roles.The findings of this study provide a scientific basis for the classification of C.reticulata flower colors and offer theoretical insights into the mechanism of flower color formation.关键词
滇山茶/花色/理化因子/花青苷/类黄酮/相关性分析Key words
Camellia reticulata/flower color/physiochemical factors/anthocyanins/flavonoids/correlation analysis分类
农业科技引用本文复制引用
聂瑞敏,徐剑,陈盛通,王仲朗,陈龙清,耿芳..滇山茶品种的花色性状分类及花瓣理化因子分析[J].广西植物,2026,46(2):220-234,15.基金项目
国家自然科学基金(32260416) （32260416）
云南省"兴滇英才支持计划"青年人才专项(YNQR-QNRC-2019-104) （YNQR-QNRC-2019-104）
云南省农业联合专项-面上项目(202101BD070001) （202101BD070001）
云南省教育厅科学研究基金(2022Y618). （2022Y618）
