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Article

Transformation of Salicylic Acid and Its Distribution in Tea Plants (Camellia sinensis) at the Tissue and Subcellular Levels

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Tea Research Institute, Guangdong Academy of Agricultural Sciences & Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, No. 6 Dafeng Road, Tianhe District, Guangzhou 510640, China
2
Guangdong Provincial Key Laboratory of Applied Botany & Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China
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College of Life Sciences, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
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National Navel Orange Engineering Research Center, College of Life Sciences, Gannan Normal University, Rongjiang New District, Ganzhou 341000, China
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Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China
*
Authors to whom correspondence should be addressed.
These authors contributed equally to this work.
Plants 2021, 10(2), 282; https://doi.org/10.3390/plants10020282
Received: 6 December 2020 / Revised: 7 January 2021 / Accepted: 14 January 2021 / Published: 2 February 2021
(This article belongs to the Section Plant Physiology and Metabolism)
Salicylic acid (SA) is a well-known immune-related hormone that has been well studied in model plants. However, less attention has been paid to the presence of SA and its derivatives in economic plants, such as tea plants (Camellia sinensis). This study showed that tea plants were rich in SA and responded differently to different pathogens. Feeding experiments in tea tissues further confirmed the transformation of SA into salicylic acid 2-O-β-glucoside (SAG) and methyl salicylate. Nonaqueous fractionation techniques confirmed that SA and SAG were mostly distributed in the cytosol of tea leaves, consistent with distributions in other plant species. Furthermore, the stem epidermis contained more SA than the stem core both in C. sinensis cv. “Jinxuan” (small-leaf species) and “Yinghong No. 9” (large-leaf species). Compared with cv. “Yinghong No. 9”, cv. “Jinxuan” contained more SAG in the stem epidermis, which might explain its lower incidence rate of wilt disease. This information will improve understanding of SA occurrence in tea plants and provide a basis for investigating the relationship between SA and disease resistance in tea plants. View Full-Text
Keywords: tea; Camellia sinensis; salicylic acid; salicylic acid 2-O-β-glucoside; methyl salicylate; transformation; distribution tea; Camellia sinensis; salicylic acid; salicylic acid 2-O-β-glucoside; methyl salicylate; transformation; distribution
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MDPI and ACS Style

Li, J.; Xiao, Y.; Fan, Q.; Liao, Y.; Wang, X.; Fu, X.; Gu, D.; Chen, Y.; Zhou, B.; Tang, J.; Zeng, L. Transformation of Salicylic Acid and Its Distribution in Tea Plants (Camellia sinensis) at the Tissue and Subcellular Levels. Plants 2021, 10, 282. https://doi.org/10.3390/plants10020282

AMA Style

Li J, Xiao Y, Fan Q, Liao Y, Wang X, Fu X, Gu D, Chen Y, Zhou B, Tang J, Zeng L. Transformation of Salicylic Acid and Its Distribution in Tea Plants (Camellia sinensis) at the Tissue and Subcellular Levels. Plants. 2021; 10(2):282. https://doi.org/10.3390/plants10020282

Chicago/Turabian Style

Li, Jianlong, Yangyang Xiao, Qian Fan, Yinyin Liao, Xuewen Wang, Xiumin Fu, Dachuan Gu, Yiyong Chen, Bo Zhou, Jinchi Tang, and Lanting Zeng. 2021. "Transformation of Salicylic Acid and Its Distribution in Tea Plants (Camellia sinensis) at the Tissue and Subcellular Levels" Plants 10, no. 2: 282. https://doi.org/10.3390/plants10020282

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