Xiaoying Liu: Plant Physiology First Author

Xiaoying Liu, first author of “Kiwifruit bZIP transcription factor AcePosF21 elicits ascorbic acid biosynthesis during cold stress”

Current position: Research Assistant, Wuhan Botanical Garden, Chinese Academy of Sciences

Education: Ph.D. in University of Chinese Academy of Sciences

Non-scientific interests: Running, Traveling and Music

Brief bio: After studying at Wuhan Botanical Garden/University of Chinese Academy of Sciences from 2017 to 2022, I graduated with a doctorate in 2023. My supervisors are Professors Caihong Zhong and Dawei Li. I joined Wuhan Botanical Garden as an assistant researcher in 2023. For the past five years, I have focused on discovering key genes and molecular regulatory mechanisms for vitamin C (ascorbic acid, AsA) biosynthesis in kiwifruit. I have published several papers in New Phytol. (2022), Sci. Hortic. (2022), Int. J. Mol.Sci. (2021), et al. In this study, we revealed new regulatory networks (AceMYB102-AcePosF21-AceGGP3) of kiwifruit responding to cold stress, eliciting AsA biosynthesis to reduce oxidative damage during cold stress. This paper provides significant new information about the plants that synthesize AsA to neutralize ROS, in response to cold stress. We confirm that this phenomenon is almost conserved across the plant kingdom, from single-cell algae to higher plants. Our study provides valuable clues for creating genetic resources with higher AsA concentrations and stronger resistance to cold through genetic engineering.

第一作者：刘晓莹

目前职位：中国科学院武汉植物园，助理研究员

教育经历：2017-2022中国科学院大学植物学博士

兴趣爱好：跑步、旅行和音乐

个人简历：我于2017-2022年就读于中国科学院武汉植物园，师从钟彩虹研究员和李大卫研究员。2023年1月获得了中国科学院大学博士学位并入职武汉植物园担任A类特别助理研究员。在过去的五年里，我致力于猕猴桃维生素C生物合成关键基因发掘和分子调控机制研究，相关成果已经发表在New Phytol. (2022)，Sci. Hortic. (2022)和Int. J. Mol.Sci. (2021) 等期刊。在本研究中，我们揭示了新的猕猴桃冷胁迫响应调控网络 (AceMYB102-AcePosF21-AceGGP3)，研究发现转录因子AcePosF21在冷胁迫下可诱导维生素C生物合成以减轻冷胁迫对猕猴桃的氧化损伤。本研究不仅为植物在低温胁迫下主动合成维生素C以减少活性氧提供了新思路，而且证实了该现象从单细胞藻类到高等植物几乎是保守的。我们的研究为通过基因工程创制具有更高的维生素C浓度和更强抗寒性的植物遗传资源提供了有价值的线索。