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dc.contributor.authorSims, Katherine
dc.contributor.authorAbedi-Samakush, Fatemeh
dc.contributor.authorSzulc, Nicole
dc.contributor.authorHonti, Monika Gyongyi Macias
dc.contributor.authorMattsson, Jim
dc.date.accessioned2021-04-26T09:10:43Z
dc.date.available2021-04-26T09:10:43Z
dc.date.issued2021-04-15
dc.date.submitted2021-03-09
dc.identifier.citationSims, K., Abedi-Samakush, F., Szulc, N., Macias Honti, M. G., & Mattsson, J. (2021). OsARF11 Promotes Growth, Meristem, Seed, and Vein Formation during Rice Plant Development. International Journal of Molecular Sciences, 22(8), 4089. doi:10.3390/ijms22084089
dc.identifier.issn1422-0067
dc.identifier.issn1661-6596
dc.identifier.doi10.3390/ijms22084089
dc.identifier.urihttp://hdl.handle.net/10754/668954
dc.description.abstractThe plant hormone auxin acts as a mediator providing positional instructions in a range of developmental processes. Studies in Arabidopsis thaliana L. show that auxin acts in large part via activation of Auxin Response Factors (ARFs) that in turn regulate the expression of downstream genes. The rice (Oryza sativa L.) gene OsARF11 is of interest because of its expression in developing rice organs and its high sequence similarity with MONOPTEROS/ARF5, a gene with prominent roles in A. thaliana development. We have assessed the phenotype of homozygous insertion mutants in the OsARF11 gene and found that in relation to wildtype, osarf11 seedlings produced fewer and shorter roots as well as shorter and less wide leaves. Leaves developed fewer veins and larger areoles. Mature osarf11 plants had a reduced root system, fewer branches per panicle, fewer grains per panicle and fewer filled seeds. Mutants had a reduced sensitivity to auxin-mediated callus formation and inhibition of root elongation, and phenylboronic acid (PBA)-mediated inhibition of vein formation. Taken together, our results implicate OsARF11 in auxin-mediated growth of multiple organs and leaf veins. OsARF11 also appears to play a central role in the formation of lateral root, panicle branch, and grain meristems.
dc.description.sponsorshipThis research was funded by the Natural Sciences and Engineering Research Council (NSERC) discovery grant to J.M., MITACS Accelerate Fellowship to K.S., and MITACS Globalink fellowship to M.G.M.H.
dc.publisherMDPI AG
dc.relation.urlhttps://www.mdpi.com/1422-0067/22/8/4089
dc.rightsThis article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleOsarf11 promotes growth, meristem, seed, and vein formation during rice plant development
dc.typeArticle
dc.contributor.departmentPlant Cell and Developmental Biology, King Abdullah University of Science and Technology, Ibn Al Haytham Bldg.2, Thuwal, 23955-6900, Saudi Arabia
dc.identifier.journalInternational Journal of Molecular Sciences
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionDepartment of Biological Sciences, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada
dc.identifier.volume22
dc.identifier.issue8
dc.identifier.pages4089
kaust.personHonti, Monika Gyongyi Macias
dc.date.accepted2021-04-13
dc.identifier.eid2-s2.0-85104155293
refterms.dateFOA2021-04-26T09:11:13Z


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This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.
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