Plant-Climate Interaction Effects: Changes in the Relative Distribution and Concentration of the Volatile Tea Leaf Metabolome in 2014-2016

文献类型： 外文期刊

第一作者： Kfoury, Nicole

作者： Kfoury, Nicole;Robbat, Albert, Jr.;Kfoury, Nicole;Orians, Colin M.;Cash, Sean B.;Robbat, Albert, Jr.;Scott, Eric R.;Orians, Colin M.;Ahmed, Selena;Cash, Sean B.;Griffin, Timothy;Matyas, Corene;Stepp, John Richard;Han, Wenyan;Xue, Dayuan;Long, Chunlin

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关键词： climate change; plant-climate interactions; season; elevation; tea quality; metabolomics; gas chromatography; mass spectrometry

期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：5.753； 五年影响因子：6.612 ）

ISSN： 1664-462X

年卷期： 2019 年 10 卷

页码：

收录情况： SCI

摘要： Climatic conditions affect the chemical composition of edible crops, which can impact flavor, nutrition and overall consumer preferences. To understand these effects, we sampled tea (Camellia sinensis (L.) Kuntze) grown in different environmental conditions. Using a target/nontarget data analysis approach, we detected 564 metabolites from tea grown at two elevations in spring and summer over 3 years in two major tea-producing areas of China. Principal component analysis and partial least squares-discriminant analysis show seasonal, elevational, and yearly differences in tea from Yunnan and Fujian provinces. Independent of location, higher concentrations of compounds with aromas characteristic of farmers' perceptions of high-quality tea were found in spring and high elevation teas. Yunnan teas were distinct from Fujian teas, but the effects of elevation and season were different for the two locations. Elevation was the largest source of metabolite variation in Yunnan yet had no effect in Fujian. In contrast seasonal differences were strong in both locations. Importantly, the year-to-year variation in chemistry at both locations emphasizes the importance of doing multi-year studies, and further highlights the challenge farmers face when trying to produce teas with specific flavor/health (metabolite) profiles.

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