Hua Qin: The Plant Cell First Author

Hua Qin, first author of “Orchestration of ethylene and gibberellin signals determines primary root elongation in rice”

 

Current Position: Assistant Investigator, Biotechnology Research Institute, Chinese Academy of Agricultural Sciences (CAAS)

Education: Postdoc and Ph.D., (Biochemistry and Molecular Biology) in Biotechnology Research Institute, Chinese Academy of Agricultural Sciences (CAAS) and B.Sc. (Biological Engineering) in Yangtze University

Non-scientific Interests: travelling, movies, badminton and table tennis

Brief bio: My major research interest is to dissect the molecular mechanism of ethylene in plant root growth and stress adaptation. I started my research career since I became a graduate student of Dr. Rongfeng Huang. During my graduate and postdoctoral study, I found that OsDOF15 acts as a link between salt and ethylene biosynthesis by coordinating the modulation of salt- and ethylene-inhibited primary root growth, and OsEIL1 mediates the crosstalk between ethylene and auxin during primary root elongation by activating the expression of YUC8/REIN7. In this study, we demonstrated that ethylene promotes GA metabolism to control cell proliferation of root meristem and primary root elongation in rice. Our long-term scientific goal is to provide valuable targets for root system architecture breeding and improve rice production in environments characterized by abiotic stress.

 

姓名：秦华

职位：中国农业科学院生物技术研究所，副研究员

学历：中国农业科学院，理学博士

爱好：旅游，羽毛球，乒乓球

简历：本人于2011年进入中国农业科学院学习，并于2017年获得生物化学与分子生物学专业博士学位。毕业后在中国农业科学院生物技术研究所从事博士后研究工作。2019年7月博士后出站工作至今。自研究生以来，我以水稻为研究对象，从事水稻耐逆性适应及其遗传改良的研究，剖析植物激素乙烯调控水稻根发育及耐逆性的分子机理。我们之前的研究发现OsDOF15通过调控乙烯合成介导盐抑制初生根的生长，以及乙烯通过乙烯信号核心转录因子OsEIL1转录调控生长素合成关键基因YUC8的表达，从而促进根中生长素的积累来调控水稻初生根的伸长生长。在本研究中，我们发现乙烯信号核心转录因子OsEIL1直接激活赤霉素代谢基因的表达，导致根中活性赤霉素含量降低，从而抑制根尖分生区细胞增殖和根的生长。我们的研究将为作物根系改良奠定理论基础和提供有用的基因。