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dc.contributor.authorChen, Hao
dc.contributor.authorLi, Zhuofu
dc.contributor.authorXiong, Liming
dc.date.accessioned2015-08-03T09:56:16Z
dc.date.available2015-08-03T09:56:16Z
dc.date.issued2012-05-18
dc.identifier.citationChen, H., Li, Z., & Xiong, L. (2012). A plant microRNA regulates the adaptation of roots to drought stress. FEBS Letters, 586(12), 1742–1747. doi:10.1016/j.febslet.2012.05.013
dc.identifier.issn00145793
dc.identifier.pmid22613571
dc.identifier.doi10.1016/j.febslet.2012.05.013
dc.identifier.urihttp://hdl.handle.net/10754/561405
dc.description.abstractPlants tend to restrict their horizontal root proliferation in response to drought stress, an adaptive response mediated by the phytohormone abscisic acid (ABA) in antagonism with auxin through unknown mechanisms. Here, we found that stress-regulated miR393-guided cleavage of the transcripts encoding two auxin receptors, TIR1 and AFB2, was required for inhibition of lateral root growth by ABA or osmotic stress. Unlike in the control plants, the lateral root growth of seedlings expressing miR393-resistant TIR1 or AFB2 was no longer inhibited by ABA or osmotic stress. Our results indicate that miR393-mediated attenuation of auxin signaling modulates root adaptation to drought stress. © 2012 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
dc.description.sponsorshipThis study was supported by the National Science Foundation (Grant #0446359) and USDA-NRI (Grant #2004-02111) (to L.X.) and partially by faculty startup funds from KAUST (to L.X.). The authors thank Dr. Zhenyu Wang for technical assistance.
dc.publisherWiley
dc.subjectAbscisic acid
dc.subjectAuxin
dc.subjectLateral root
dc.subjectMicroRNA
dc.subjectOsmotic stress
dc.titleA plant microRNA regulates the adaptation of roots to drought stress
dc.typeArticle
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentBioscience Program
dc.contributor.departmentPlant Science
dc.contributor.departmentPlant Stress Genomics Research Lab
dc.identifier.journalFEBS Letters
dc.contributor.institutionDonald Danforth Plant Science Center, St. Louis, MO 63132, United States
kaust.personLi, Zhuofu
kaust.personXiong, Liming
kaust.personChen, Hao
dc.date.published-online2012-05-18
dc.date.published-print2012-06-12


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