Periodic Lateral Root Priming: What Makes It Tick?

Title:
Periodic Lateral Root Priming: What Makes It Tick?
Authors:
Laskowski, Marta ( 0000-0002-8875-7627 ) ; ten Tusscher, Kirsten H. ( 0000-0002-1945-7858 )
Abstract:
Conditioning small groups of root pericycle cells for future lateral root formation has a major impact on overall plant root architecture. This priming of lateral roots occurs rhythmically, involving temporal oscillations in auxin response in the root tip. During growth, this process generates a spatial pattern of prebranch sites, an early stage in lateral root formation characterized by a stably maintained high auxin response. To date, the molecular mechanism behind this rhythmicity has remained elusive. Some data implicate a cell-autonomous oscillation in gene expression, while others strongly support the importance of tissue-level modulations in auxin fluxes. Here, we summarize the experimental data on periodic lateral root priming. We present a theoretical framework that distinguishes between a priming signal and its subsequent memorization and show how major roles for auxin fluxes and gene expression naturally emerge from this framework. We then discuss three mechanisms that could potentially induce oscillations of auxin response: cell-autonomous oscillations, Turing-type patterning, and tissue-level oscillations in auxin fluxes, along with specific properties of lateral root priming that may be used to discern which type of mechanism is most likely to drive lateral root patterning. We conclude with suggestions for future experiments and modeling studies.
Citation:
Laskowski, Marta, and Kirsten H. ten Tusscher. 2017. "Periodic Lateral Root Priming: What Makes It Tick?" Plant Cell 29(3): 432-444.
Publisher:
American Society of Plant Biologists
DATE ISSUED:
2017-03
Department:
Biology
Type:
Article
PUBLISHED VERSION:
10.1105/tpc.16.00638
Additional Links:
http://www.plantcell.org/lookup/doi/10.1105/tpc.16.00638
PERMANENT LINK:
http://hdl.handle.net/11282/620526

Full metadata record

DC FieldValue Language
dc.contributor.authorLaskowski, Martaen
dc.contributor.authorten Tusscher, Kirsten H.en
dc.date.accessioned2017-09-15T14:48:36Z-
dc.date.available2017-09-15T14:48:36Z-
dc.date.issued2017-03-
dc.identifier.citationLaskowski, Marta, and Kirsten H. ten Tusscher. 2017. "Periodic Lateral Root Priming: What Makes It Tick?" Plant Cell 29(3): 432-444.en
dc.identifier.issn1040-4651-
dc.identifier.urihttp://hdl.handle.net/11282/620526-
dc.description.abstractConditioning small groups of root pericycle cells for future lateral root formation has a major impact on overall plant root architecture. This priming of lateral roots occurs rhythmically, involving temporal oscillations in auxin response in the root tip. During growth, this process generates a spatial pattern of prebranch sites, an early stage in lateral root formation characterized by a stably maintained high auxin response. To date, the molecular mechanism behind this rhythmicity has remained elusive. Some data implicate a cell-autonomous oscillation in gene expression, while others strongly support the importance of tissue-level modulations in auxin fluxes. Here, we summarize the experimental data on periodic lateral root priming. We present a theoretical framework that distinguishes between a priming signal and its subsequent memorization and show how major roles for auxin fluxes and gene expression naturally emerge from this framework. We then discuss three mechanisms that could potentially induce oscillations of auxin response: cell-autonomous oscillations, Turing-type patterning, and tissue-level oscillations in auxin fluxes, along with specific properties of lateral root priming that may be used to discern which type of mechanism is most likely to drive lateral root patterning. We conclude with suggestions for future experiments and modeling studies.en
dc.language.isoen_USen
dc.publisherAmerican Society of Plant Biologistsen
dc.identifier.doi10.1105/tpc.16.00638-
dc.relation.urlhttp://www.plantcell.org/lookup/doi/10.1105/tpc.16.00638en
dc.subject.departmentBiologyen_US
dc.titlePeriodic Lateral Root Priming: What Makes It Tick?en_US
dc.typeArticleen
dc.identifier.journalPlant Cellen
dc.subject.keywordPolar auxin transporten_US
dc.subject.keywordArabidopsis-thalianaen_US
dc.subject.keywordCell-differentiationen_US
dc.subject.keywordSystem architectureen_US
dc.subject.keywordDevelopmental windowen_US
dc.subject.keywordOrgan initiationen_US
dc.subject.keywordGene-expressionen_US
dc.subject.keywordPea-seedlingsen_US
dc.subject.keywordMechanismen_US
dc.subject.keywordCytokininen_US
dc.identifier.volume29en_US
dc.identifier.issue3en_US
dc.identifier.startpage432en_US
dc.rightsArchived with thanks to The Plant Cellen
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