ARABIDOPSIS THALIANA GLUTAMATE RECEPTOR-LIKE 3.7 UNDERLIES ROOT MORPHOLOGY AND SIGNALING VIA MEMBRANE POTENTIAL HOMEOSTASIS

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dc.contributor.advisorFeijó, José Aen_US
dc.contributor.authorBarbosa-Caro, Juan Camiloen_US
dc.contributor.departmentBiologyen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2022-02-02T06:32:36Z
dc.date.available2022-02-02T06:32:36Z
dc.date.issued2021en_US
dc.description.abstractPlants perceive highly variable environments and biotic interactions through membrane receptors like the GLutamate Receptor-like (GLR) family, related to the ionotropic Glutamate Receptors that underlie information transmission in neurons. GLRs underpin information transduction and morphological adaptations in plants. However, mechanistic understanding is scarce. In Arabidopsis thaliana roots, we investigated how GLRs underlie amino acid-induced electric and Ca2+ excitability. We also assessed the contribution of GLR3.7 in root hair elongation. We present GLRs as mediators of a local, glutamate-induced electric and Ca2+ response in roots, with the same initiation kinetics of wound-induced Slow Wave Potentials (SWP). We identify GLR3.7 as mediator of root hair elongation through maintenance of membrane depolarization at the growing cell apex. These results propose a parallel between glutamate-triggered signals and SWP initial phase as local and chemically induced, and posit GLR3.7 as a possible contributor to Ca2+ homeostasis in root hair apical growth.en_US
dc.identifierhttps://doi.org/10.13016/uwa4-vfox
dc.identifier.urihttp://hdl.handle.net/1903/28323
dc.language.isoenen_US
dc.subject.pqcontrolledCellular biologyen_US
dc.subject.pqcontrolledPlant sciencesen_US
dc.subject.pqcontrolledBiophysicsen_US
dc.subject.pquncontrolledarabidopsisen_US
dc.subject.pquncontrolledcalciumen_US
dc.subject.pquncontrolledelectrophysiologyen_US
dc.subject.pquncontrolledGLRen_US
dc.subject.pquncontrolledglutamateen_US
dc.subject.pquncontrolledsignalingen_US
dc.titleARABIDOPSIS THALIANA GLUTAMATE RECEPTOR-LIKE 3.7 UNDERLIES ROOT MORPHOLOGY AND SIGNALING VIA MEMBRANE POTENTIAL HOMEOSTASISen_US
dc.typeThesisen_US

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