[1] 2023.01 -- 至今，教授，博士生导师，湖南农业大学园艺学院茶学系

[2] 2019.07 -- 2022.12，副教授，硕士生导师，湖南农业大学园艺学院茶学系

[3] 2017.03 – 2019.03，博士后，清华大学化学系

二、研究方向：

专注于“茶叶次生代谢物-微生物-宿主-环境/营养”互作研究。运用遗传、基因组和化学遗传学方法来研究调节茶叶次级代谢产物与宿主微生物组关联的遗传和环境因素。目前的研究重点是：

[1] 作为宿主生理的关键调节因子，微生物和环境/营养是如何影响茶叶次生代谢产物（如茶氨酸、儿茶素和咖啡碱等）对宿主的生理作用。

[2] 揭示在茶叶次生代谢产物的环境中，微生物如何在宿主中定植及其机制。

[3] 确定塑造微生物组群落并影响微生物组功能输出的主要茶叶次级代谢产物。?

三、主持的项目

[1] 国家自然科学基金优秀青年项目（2023.1-2025.12）

[2] 国家重点研发项目课题（2022.11-2027.11）

[3] 湖南省自然科学基金青年项目（2021.1-2023.12）

[4] 国家自然科学基金青年项目（2019.1-2021.12）

四、代表性论文（#共同一作，*共同通讯）：

[1] Hongyu Chen, Xingmin Zhang, Ronggang Jiang, Jian Ouyang, Qi Liu, Juan Li, Haitao Wen, Qin Li, Jinhua Chen, Ligui Xiong*, Jianan Huang*, Zhonghua Liu*. Characterization of aroma differences on three drying treatments in Rucheng Baimao (Camellia pubescens) white tea. 2023, 114659.

[2] Lianyun Pan, Yan Lu, Shen Dai, Xiangyue Tang, Ligui Xiong*, Zhonghua Liu*, Yushun Gong*. The role of cholesterol in modifying the lipid-lowering effects of Fuzhuan brick-tea in Caenorhabditis elegans via SBP-1/SREBP. Food Science and Human Wellness, 2023, 2297-2305.

[3] Huang, Fangfang; Li, Ying; Yang, Peidi; Liu, Zhong hua; Huang, Jian 'an*; Xiong, Ligui*; Li, Juan*. Relationship between theanine, catechins and related genes reveals accumulation mechanism during spring and summer in tea plant (Camellia sinensis L.). 2022, 111142.

[4] Zhang, Xiangna; Wen, Beibei; Zhang, Yangbo; Li, Ying; Yu, Chunyan; Peng, Zhong; Wang, Kunbo; Liu, Zhonghua; Huang, Jian-an*; Xiong, Ligui*; Li, Juan*. Transcriptomic and biochemical analysis reveal differential regulatory mechanisms of photosynthetic pigment and characteristic secondary metabolites between high amino acids green-leaf and albino tea cultivars. 2022, 110823.

[5] Zhang, Xiangna#; Xiong, Ligui#; Luo, Yong; Wen, Beibei; Wang, Kunbo; Liu, Zhonghua; Huang, Jian-an*; Li, Juan*. Identification, Molecular Characteristic, and Expression Analysis of PIFs Related to Chlorophyll Metabolism in Tea Plant (Camellia sinensis). 2022, 10949.

[6] Liu, Si-Hui; Li, Juan; Huang, Jian-An*; Liu, Zhong-Hua*; Xiong, Li-Gui*. New advances in genetic engineering for L-theanine biosynthesis. Trends in Food Science & Technology, 2021, 540-551. [7] Xiong, Li-Gui; Pan, Lian-Yun; Gong, Yu-Shun; Huang, Jian-An; Liu, Zhong-Hua. Fuzhuan Tea protects Caenorhabditis elegans from glucose and advanced glycation end products via distinct pathways. Journal of Functional Foods, 2019, 148-155.

[8] Xiong, Li-Gui; Chen, Yi-Jun; Tong, Jie-Wen; Gong, Yu-Shun*; Huang, Jian-An*; Liu, Zhong-Hua*. Epigallocatechin-3-gallate promotes healthy lifespan through mitohormesis during early-to-mid adulthood in Caenorhabditis elegans. Redox Biology, 2018, 305-315.

[9] Xiong, Li-Gui; Chen, Yi-Jun; Tong, Jie-Wen; Huang, Jian-An; Li, Juan; Gong, Yu-Shun; Liu, Zhong-Hua. Tea polyphenol epigallocatechin gallate inhibits Escherichia coli by increasing endogenous oxidative stress. Food Chemistry, 2017, 196-204.

[10] Yuan, Ling#; Xiong, Li-gui#; Deng, Ting-ting; Wu, Yang; Li, Juan; Liu, Shuo-qian; Huang, Jian-an*; Liu, Zhong-hua*. Comparative profiling of gene expression in Camellia sinensis L. cultivar AnJiBaiCha leaves during periodic albinism. Gene, 2015, 23-29.

[11] Xiong, Li-Gui; Huang, Jian-An; Li, Juan; Yu, Peng-Hui; Xiong, Zhe; Zhang, Jian-Wei; Gong, Yu-Shun*; Liu, Zhong-Hua*; Chen, Jin-Hua. Black Tea Increased Survival of Caenorhabditis elegans under Stress. Journal of Agricultural and Food Chemistry, 2014, 11163-11169.

[12] Xiong, Ligui; Li, Juan; Li, Yinhua; Yuan, Ling; Liu, Shuoqian; Huang, Jian'an*; Liu, Zhonghua*. Dynamic changes in catechin levels and catechin biosynthesis-related gene expression in albino tea plants (Camellia sinensis L.). 2013, 132-143.