气候变化领域集成服务门户(CCPortal): Mechanism and function of root circumnutation

CCPortal

DOI	10.1073/pnas.2018940118
	Mechanism and function of root circumnutation
	Taylor I.; Lehner K.; McCaskey E.; Nirmal N.; Ozkan-Aydin Y.; Murray-Cooper M.; Jain R.; Hawkes E.W.; Ronald P.C.; Goldman D.I.; Benfey P.N.
发表日期	2021
ISSN	00278424
卷号	118 期号:8
英文摘要	Early root growth is critical for plant establishment and survival. We have identified a molecular pathway required for helical root tip movement known as circumnutation. Here, we report a multiscale investigation of the regulation and function of this phenomenon. We identify key cell signaling events comprising interaction of the ethylene, cytokinin, and auxin hormone signaling pathways. We identify the gene Oryza sativa histidine kinase-1 (HK1) as well as the auxin influx carrier gene OsAUX1 as essential regulators of this process in rice. Robophysical modeling and growth challenge experiments indicate circumnutation is critical for seedling establishment in rocky soil, consistent with the long-standing hypothesis that root circumnutation facilitates growth past obstacles. Thus, the integration of robotics, physics, and biology has elucidated the functional importance of root circumnutation and uncovered the molecular mechanisms underlying its regulation. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Circumnutation; Histidine kinase-1; Rice roots
语种	英语
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/180590
作者单位	Department of Biology, Duke University, Durham, NC 27708, United States; Howard Hughes Medical Institute, Duke University, Durham, NC 27708, United States; School of Physics, Georgia Institute of Technology, Atlanta, GA 30332, United States; Department of Plant Pathology and, Genome Center, University of California, Davis, CA 95616, United States; Department of Mechanical Engineering, University of California, Santa Barbara, CA 93106, United States; Department of Agricultural Biology, Colorado State University, Fort Collins, CO 80521, United States
推荐引用方式 GB/T 7714	Taylor I.,Lehner K.,McCaskey E.,et al. Mechanism and function of root circumnutation[J],2021,118(8).
APA	Taylor I..,Lehner K..,McCaskey E..,Nirmal N..,Ozkan-Aydin Y..,...&Benfey P.N..(2021).Mechanism and function of root circumnutation.Proceedings of the National Academy of Sciences of the United States of America,118(8).
MLA	Taylor I.,et al."Mechanism and function of root circumnutation".Proceedings of the National Academy of Sciences of the United States of America 118.8(2021).