摘要
光是茶树生长过程中的重要环境因子之一。本研究以龙井43为试验材料,设置不同比例红蓝光的补光处理,检测各处理下茶叶品质成分的含量和品质相关基因的表达量,以明确其对茶叶品质的影响,并初步探究其调控机理。结果显示,单一红光对茶叶品质无显著影响,但不同比例的红蓝光,尤其是红蓝光辐照度比为8∶1的处理显著(P<0.05)抑制了茶多酚的合成,促进了游离氨基酸的积累,降低了茶叶的酚氨比。研究结果为生产中利用补光的技术手段调控茶叶品质提供了一定的理论依据和技术支撑。
Light is one of the important environmental factors in the growth and development of tea plants.In this study,Longjing 43 was treated with different proportions of red and blue light,and the contents of tea quality components and the expression levels of related genes in tea leaves were determined,to explore the effects of light quality on tea quality and its regulation mechanism.It was shown that the contents of free amino acids and tea polyphenols in tea leaves under supplement of pure red light were not significantly changed compared to the control.However,supplement of different proportions of red and blue light,especially with the irradiation ratio of 8∶1(red light to blue light),significantly(P<0.05)suppressed the biosynthesis of tea polyphenols,increased the contents of free amino acids,and resulted in the reduction of the ratio of polyphenol to amino acid.This study provided theoretical basis and technical support for the use of supplementary light to regulate the quality of tea.
作者
葛诗蓓
金迪迪
杨明来
王辉
张兰
韩文炎
李鑫
GE Shibei;JIN Didi;YANG Minglai;WANG Hui;ZHANG Lan;HAN Wenyan;LI Xin(Tea Research Institute,Chinese Academy of Agricultural Sciences,Hangzhou 310008,China;School of Life Sciences,Anhui Agricultual University,Hefei 230036,China;Zhejiang Changxin Photoelectric Technology Co.,Ltd.,Hangzhou 310020,China)
出处
《浙江农业学报》
CSCD
北大核心
2022年第10期2105-2111,共7页
Acta Agriculturae Zhejiangensis
基金
浙江省重点研发计划(2021C02036)
浙江省“三农六方”科技协作计划(2021SNLF014)。
关键词
茶树
红蓝光
品质成分
游离氨基酸
基因表达
Camellia sinensis L.
red and blue light
quality components
free amino acids
gene expression
