Stable isotope and photosynthetic response of tea grown under different temperature and light conditions

文献类型： 外文期刊

第一作者： Xia, Wei

作者： Xia, Wei;Li, Chunlin;Nie, Jing;Shao, Shengzhi;Rogers, Karyne M.;Zhang, Yongzhi;Yuan, Yuwei;Xia, Wei;Li, Zuguang;Xia, Wei;Li, Chunlin;Nie, Jing;Shao, Shengzhi;Rogers, Karyne M.;Zhang, Yongzhi;Yuan, Yuwei;Rogers, Karyne M.

作者机构：

关键词： Tea (Camellia sinensis); Stable isotopes; Temperature; Light intensity; Photosynthesis

期刊名称：FOOD CHEMISTRY （ 影响因子：9.231； 五年影响因子：8.795 ）

ISSN： 0308-8146

年卷期： 2022 年 368 卷

页码：

收录情况： SCI

摘要： The stable isotope and photosynthesis response of tea (Camellia sinensis) is determined under different light and temperature conditions. The results showed that isotopes of young tea leaves were more enriched with increasing light intensity (31 similar to 411 mu mol m(-2).s(-1)). However, the value of delta C-13 and delta N-15 seemed depleted, while delta H-2 and delta O-18 became enriched as temperature increasing from 15 to 35 degrees C. Significant isotope differences were found in tea leaves harvested between early growth (0-10 days) and later growth (10-21 days) periods (p < 0.05). Pearson's correlation showed a negative correlation between isotopes (delta C-13, delta N-15 and delta H-2) and photosynthetic parameters (EVAP and CI) ranging from 0.497 to 0.872, under 25 degrees C/203 mu mol m(-2).s(-1). But delta O-18 had a weak correlation with all photosynthetic parameters under the same conditions. These distinctive correlations between isotopes and photosynthetic parameters provide new insights which could be used to predict tea isotope responses arising from subtle seasonal or climate change conditions.

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