Lipidomics Analysis of Tea Leaves Cultured in Hydroponics Reveals That High Nitrogen Application Decreases Tea Plant Resistance to Ultraviolet Radiation

文献类型： 外文期刊

第一作者： Du, Sijia

作者： Du, Sijia;Cao, Hongli;Du, Sijia;Liu, Meiya;Ruan, Jianyun;Zhang, Qunfeng;Dong, Fang;Yue, Chuan

作者机构：

关键词： ultraviolet radiation; lipidomics; nitrogen application; tea plants; resistance

期刊名称：HORTICULTURAE （ 影响因子：2.923； 五年影响因子：3.582 ）

ISSN：

年卷期： 2022 年 8 卷 8 期

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收录情况： SCI

摘要： Lipid composition in tea leaves is significantly affected by ultraviolet (UV) radiation and nitrogen levels. Here, to reveal the response of lipids in tea plants (Camellia sinensis L.) to the interaction between nitrogen and UV radiation, we treated tea plants with three gradients of UV radiation under two nitrogen levels by the hydroponic method. Lipidomics results show that ultraviolet radiation can decrease neutral lipid (TAG) and increase membrane lipids (including PC, PE, and PG) under hydroponic conditions, indicating that tea plants could survive UV radiation by decomposing TAG to avoid damaging cells. In addition, the accumulation of phospholipids and galactolipids may be related to avoiding UV damage and enhancing photosynthesis in tea plants under UV radiation. Furthermore, the response of lipid components to UV radiation in tea plants under low nitrogen conditions is significantly lower than that under high nitrogen conditions, which suggests that excessive nitrogen application may reduce the resistance of tea plants to UV radiation. This study provides a theoretical basis for optimizing cultivation measures based on tea UV resistance.

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