Zhan Li: Plant Physiology First Author
Zhan Li, first author of “Resting cytosol Ca2+ level is maintained by Ca2+ pumps and affects environmental responses in Arabidopsis”
Current Position：Associate professor at South China Agricultural University
Education:
B.S. Anhui Agricultural University
Ph.D. Zhejiang University
Post Doc. Cornell University
Non-scientific interests
Reading, cooking
Brief bio and introduction：
I received joint-PhD and postdoctoral training in the lab of Dr. Jian Hua at Cornell University from 2016 to 2022. My research focuses on the roles of calcium signal and plant hormones in plant seed development and stress responses.
In this study, we identified a function of both plasma membrane localized (ACA8 and ACA10) and vacuole localized (ACA4 and ACA11) Ca2+ pumps in maintaining low resting cytosol Ca2+ level. We showed that the resting level of cytosol Ca2+ has a large impact on biotic and abiotic stress responses. Elevated resting Ca2+ in the aca8 aca10 and aca4 aca11 mutant caused autoimmunity. Under chilling, this autoimmunity was amplified, leading to cell death and chilling susceptibility. Under heat, elevated resting Ca2+ induced stomatal closure and a heightened heat susceptibility.
This study indicates that the resting cytosol Ca2+ level is another feature of the calcium signal, in addition to the transient calcium signature, that impacts plant growth and development in a changing environment.
论文：Resting cytosol Ca2+ level maintained by Ca2+ pumps affect environmental responses in Arabidopsis
姓名：利 站
当前职位：华南农业大学农学院-副教授
教育经历：安徽农业大学 学士
浙江大学 博士
康奈尔大学 博士后
个人简介：
2016年进入康奈尔大学华健老师实验室，开展博士联合培养和博士后研究工作，主要从事钙信号及信号传导、植物激素等在种子、植物应对温度胁迫中的作用。
本研究发现定位于质膜的钙泵（ACA8 和ACA10）和定位于液泡膜的钙泵（ACA4和ACA11）的主要功能是维持细胞内较低的基础钙浓度。在aca8aca10或者aca4aca11突变体中，基础钙浓度升高引起植物自身免疫。低温下，自身免疫反应被放大导致植物死亡；高温下，升高的基础钙浓度诱导气孔关闭，植物无法快速降温而死亡。因此，基础钙浓度也可以看作一种钙信号，功能与瞬时钙信号和长距离运输钙信号相似，对植物生长发育以及应对环境胁迫发挥重要作用。
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