不同光质LED对竹叶兰酚类物质及抗氧化性的影响  

Effect of Different LED Light Qualities on Phenolic Substances and Oxygen Metabolism of Arundina graminifolia

作　　者：郭阿瑾 杨凤玺 王亚琴 朱根发 GUO Ajin;YANG Fengxi;WANG Yaqin;ZHU Genfa(Guangdong Key Laboratory of Biotechnology for Plant Development,College of Life Science,South China Normal Univer-sity,Guangzhou,Guangdong 510631,China;Guangdong Key Laboratory of Ornamental Plant Germplasm Innovation and Utiliza-tion,Environmental Horticulture Research Institute,Guangdong Academy of Agricultural Sciences,Guangzhou,Guangdong 510640,China)

机构地区：[1]华南师范大学生命科学学院/广东省植物发育生物工程重点实验室,广东广州510631 [2]广东省农业科学院环境园艺研究所/广东省园林花卉种质创新与利用重点实验室,广东广州510640

出　　处：《热带作物学报》2018年第7期1318-1323,共6页Chinese Journal of Tropical Crops

基　　金：广东省科技厅产学研项目(No.2017B020201004);广东省公益研究与能力建设项目(No.2017B020201004);广东省农业科技创新及推广项目(No.2018LM1095);广东省农业科学院团队建设项目(No.2016 12TD)

摘　　要：本研究采用9种LED光质组合光源处理竹叶兰2个月大的幼苗,测定其形态生长、酚类物质、氧化代谢指标。结果表明:与红光,远红光相比,蓝光使幼苗生长健壮、根系发达、生物量积累且有利于多酚、黄酮、花色素苷等活性成分的积累,同时蓝光可促使竹叶兰体内过氧化氢酶、过氧化物酶含量增加,提高植物羟自由基清除能力、超氧阴离子清除能力和总抗氧化能力;而相较于单色光源,复合光呈叠加效应,其中在3B1R条件下,竹叶兰活性成分及抗氧化能力各项指标最好,更利于提高其药用价值,为最优光质组合。In this study, we examined the morphological growth, content of phenolic substances and the antioxidant ability of A. graminifolia under different LED light source. Two months old seedlings were treated with nine kinds of LED light-combination light sources and the physiological and metabolic indices were measured. Our results showed that blue light was beneficial to root system, biomass, polyphenols, flavonoids, hydrogen peroxide, catalase, peroxidase production and hydroxyl radical scavenging ability, as well as superoxide anion scavenging ability and total antioxidant capacity when compared with red and far-red light group. Moreover, a composite light showed a superposition effect and a combination of light blue and red ratio of 3：1 was considered as the optimum light condition, which could improve the medicinal value of A. graminifolia apparently.

关 键 词：LED光质 竹叶兰 活性成分 抗氧化能力 

分 类 号：Q4[生物学—生理学]