Chang Ermei

Prof.  Chang Ermei

Organization: Research Institute of Forestry, Chinese Academy of Forestry

Research category: Ecology

Research field: Conservation of ancient trees

E-mail: changem@caf.ac.cn

Main work

Prof. Chang Ermei joined the Research Institute of Forestry, Chinese Academy of Forestry in 2012 and engaged in research on the longevity mechanism and clone reproduction of ancient trees.

She discovered the key genes that regulate the longevity of ancient Platycladus orientalis trees, and verified that the telomere-related genes Kub3 and other genes regulate resistance to NaCl and drought stress, providing a theoretical basis for delaying the aging of ancient trees.

She explained the molecular mechanism of the lignification of the callus of ancient Platycladus orientalis that hinders the rooting of cuttings, and initially established an efficient vegetative breeding technology system for ancient trees. I collected germplasm resources of ancient ancient trees such as Platycladus orientalis, Juniperus chinensis, and Ginkgo biloba.

She conducted analysis and research on the communities of pathogenic bacteria in tree holes of ancient trees, and participated in the rejuvenation of many important ancient trees in Beijing and other areas.

Since she got her current job, she has presided over 10 projects, including 2 from the National Natural Science Foundation of China. She has published 21 papers in domestic and foreign journals as the first and corresponding author, including 14 SCI papers. She has been authorized as the first inventor to have 5 invention patents related to ancient trees. She has co-edited 5 books and have been recognized as possessing 1 scientific research achievement. She was the chief editor of the undergraduate textbook"Physiology and Ecology of Ancient Trees".

Key research projects

  • Screening and collection of high-quality germplasm resources for carbon forests. 2023.06-2024.12

  • Study on the characteristics of microbial communities in tree holes of ancient Platycladus orientalis. 2023.04-2024.12

  • Molecular mechanism of lignification in callus of tree cuttings. 2022.10-2024.10

  • Formation and maintenance mechanism of carbon sink function in typical larch forest stands in the Yellow River Basin. 2022.07-2025.06

  • Large tree cultivation, maintenance and technical services. 2019.12-2022.12

  • Molecular mechanism of the effects of accumulation of phenolic acids and flavonoids on lignification of callus of Platycladus orientalis cuttings. 2019.01-2020.12

  • The regulatory effect of telomere-related genes on senescence of Platycladus orientalis. 2014.08-2017.08

  • Study on the rooting mechanism of ancient Platycladus orientalis cuttings. 2014.04-2016.04

  • Cloning and functional analysis of telomere binding protein gene TRF of Platycladus orientalis. 2014-2017

  • Proteomic study on seed germination of Gnetum parvifolium. 2013.03-2015.03

Published articles & books

  • Chang, Ermei, Liu Xue, Chen Jiahui, Sun Jingyi, Yang Shaowei and Liu Jianfeng*. Comparative Transcriptomes Reveal the Disjunction Adaptive Strategy of Thuja Species in East Asia and North America. Journal of Forestry Research, 2023, 34(6): 1963-1974.

  • Chang, Ermei, Guo Wei, Dong Yao, Jia Zirui, Zhao Xiulian, Jiang Zeping, Zhang Li, Zhang Jin* and Liu Jianfeng*. Metabolic Profiling Reveals Key Metabolites Regulating Adventitious Root Formation in Ancient Platycladus orientalis Cuttings. Frontiers in Plant Science, 2023, 14: 1192371.

  • Chang, Ermei, Guo Wei, Xie Yunhui, Jiang Zeping, Dong Yao, Jia Zirui, Zhao Xiulian, Liu Jianfeng* and Zhang Jin*. Changes of Lignified-Callus and Wound-Induced Adventitious Rooting in Ancient Platycladus orientalis Cuttings as Affected by Tree Age. Industrial Crops and Products, 2023, 203: 117183.

  • Dong, Yao, Guo Wei, Xiao Wenfa, Liu Jianfeng, Jia Zirui, Zhao Xiulian, Jiang Zeping and Chang Ermei*. Effects of Different Donor Ages on the Growth of Cutting Seedlings Propagated from Ancient Platycladus orientalis. Plants, 2023, 12 (9): 1754.

  • Dong, Yao, Xiao Wenfa, Guo Wei, Liu Yifu, Nie Wen, Huang Ruizhi, Tan Cancan, Jia Zirui, Liu Jianfeng, Jiang Zeping and Chang Ermei*. Effects of Donor Ages and Propagation Methods on Seedling Growth of Platycladus orientalis (L.) Franco in Winter. International Journal of Molecular Sciences, 2023, 24 (8): 7170.

  • Yao Xiamei, Ji Jing, Yue Jianyun, Shi Shengqing, Ou Chou, Jiang Zeping and Chang Ermei*. Exogenous Abscisic Acid Modulates Reactive Oxygen Metabolism and Related Gene Expression in Platycladus orientalis under H2O2-Induced Stress. Russian Journal of Plant Physiology, 2020, 67 (1): 85–93.

  • Chang Ermei, Tian Yuxin, Wang Caiyun, Deng Nan, Jiang Zeping and Liu Caixia*. Exploring the Phylogeography of Ancient Platycladus orientalis in China by Specific-Locus Amplified Fragment Sequencing. International Journal of Molecular Sciences, 2019, 20 (16): 3871.

  • Chang Ermei, Zhang Jin, Yao Xiamei, Tang Shuo, Zhao Xiulian, DengNan, Shengqing Shi, Jianfeng Liu and Zeping Jiang*. De Novo Characterization of the Platycladus orientalis Transcriptome and Analysis of Photosynthesis-Related Genes during Aging. Forests, 2019, 10 (5): 393.

  • Chang Ermei, Deng Nan, Zhang Jin, Liu Jianfeng, Chen Lanzhen, Zhao Xiulian, M. Abbas, Jiang Zeping*, Shi Shengqing*. Proteome-level Analysis of Metabolism- and Stress-related Proteins During Seed Dormancy and Germination in Gnetum parvifolium. Journal of agricultural and food chemistry, 2018, 66(11): 3019-3029.

  • Lan Qian, Liu Jianfeng, Shi Shengqing, Deng Nan, Jiang Zeping, and Chang Ermei*. Anatomy, Microstructure and Endogenous Hormone Changes in Gnetum parvifolium (Warb.) C. Y. Cheng during Anthesis. Journal of Systematics and Evolution. 2018, 56(1): 14-24.

  • Yao Xiamei, Zhang Jin, Ji Jing, Liu Jianfeng, Shi Shengqing, Jiang Zeping, and Chang Ermei*. Platycladus orientalis PoKub3 is Involved in Abiotic Stress Responses in Transgenic Arabidopsis. Journal Plant Biology. 2017, 60:322-334.

  • Chang Ermei, Zhang Jin, Deng Nan, Jiang Zeping*, Shi Shengqing*. Transcriptome Differences between 20- and 3,000-year- old Platycladus orientalis Reveal that ROS are Involved in Senescence Regulation. Electronic Journal of Biotechnology, 2017, 29: 68-77.

  • Chang Ermei, Zhao Yuxin, Wei Qianchun, Shi Shengqing, Jiang Zeping*. Isolation of High-quality RNA from Platycladus orientalis and other Cupressaceae Plants. Electronic Journal of Biotechnology 2016, 23: 21-27.

  • Deng Nan*, Chang Ermei*, Liu Jianfeng, Ma Jing, Jiang Zeping*, Shi Shengqing*. Transcriptome Characterization of Gnetum parvifolium Reveals Candidate Genes Involved in Important Secondary Metabolic Pathways of Flavonoids and Stilbenoids. Frontiers in Plant Science, 2016, 7: 174.

Other results

  • Chang Ermei, Jiang Zeping, Liu Jianfeng, Jia Zirui, Zhao Xiulian. Tissue Culture Method of Ancient Tree: 2030708 [P]. 2023-08-04.

  • Chang Ermei, Guo Wei, Liu Jianfeng, Jia Zirui, Zhao Xiulian. Method for Improve the Survival Rate of Platycladus orientalis Cutting Seedlings Subject to Overwintering Preservation: NG PT C 2023 7396 [P]. 2023-04-11.

  • Chang Ermei, Jiang Zeping, Liu Jianfeng, Jia Zirui, Zhao Xiulian. Cuttage Method for Ancient Tree: LU01311 [P]. 2022-08-09.

  • Chang Ermei, Jiang Zeping, Liu Jianfeng, Jia Zirui, Zhao Xiulian. A method to improve the survival rates of ancient tree cuttings. ZL201911002373.1. [P]. 2022-02-22.

  • Chang Ermei, Jiang Zeping, Liu Jianfeng, Xu Yang, Wei Qianchun, Zhao Yuxin, Li Yingchao. The Cutting Propagation Method of ancient Platycladus orientalis. ZL 2015 1 0079301.2. 2017-3-8.