Auxin-dependent regulation of lateral root positioning in the basal meristem of Arabidopsis
In plants, the developmental mechanisms that regulate the positioning of lateral organs along the primary root are currently unknown. We present evidence on how lateral root initiation is controlled in a spatiotemporal manner in the model plant Arabidopsis thaliana . First, lateral roots are spaced...
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| Veröffentlicht in: | Development (Cambridge) 2007-02, Vol.134 (4), p.681-690 |
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| creator | De Smet, Ive Tetsumura, Takuya De Rybel, Bert Frei dit Frey, Nicolas Laplaze, Laurent Casimiro, Ilda Swarup, Ranjan Naudts, Mirande Vanneste, Steffen Audenaert, Dominique Inzé, Dirk Bennett, Malcolm J Beeckman, Tom |
| description | In plants, the developmental mechanisms that regulate the positioning of lateral organs along the primary root are currently unknown. We present evidence on how lateral root initiation is controlled in a spatiotemporal manner in the model plant Arabidopsis thaliana . First, lateral roots are spaced along the main axis in a regular left-right alternating pattern that correlates with gravity-induced waving and depends on AUX1, an auxin influx carrier essential for gravitropic response. Second, we found evidence that the priming of pericycle cells for lateral root initiation might take place in the basal meristem, correlating with elevated auxin sensitivity in this part of the root. This local auxin responsiveness oscillates with peaks of expression at regular intervals of 15 hours. Each peak in the auxin-reporter maximum correlates with the formation of a consecutive lateral root. Third, auxin signaling in the basal meristem triggers pericycle cells for lateral root initiation prior to the action of INDOLE-3-ACETIC ACID14 (SOLITARY ROOT). |
| doi_str_mv | 10.1242/dev.02753 |
| format | Article |
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We present evidence on how lateral root initiation is controlled in a spatiotemporal manner in the model plant Arabidopsis thaliana . First, lateral roots are spaced along the main axis in a regular left-right alternating pattern that correlates with gravity-induced waving and depends on AUX1, an auxin influx carrier essential for gravitropic response. Second, we found evidence that the priming of pericycle cells for lateral root initiation might take place in the basal meristem, correlating with elevated auxin sensitivity in this part of the root. This local auxin responsiveness oscillates with peaks of expression at regular intervals of 15 hours. Each peak in the auxin-reporter maximum correlates with the formation of a consecutive lateral root. Third, auxin signaling in the basal meristem triggers pericycle cells for lateral root initiation prior to the action of INDOLE-3-ACETIC ACID14 (SOLITARY ROOT).</description><identifier>ISSN: 0950-1991</identifier><identifier>EISSN: 1477-9129</identifier><identifier>DOI: 10.1242/dev.02753</identifier><identifier>PMID: 17215297</identifier><language>eng</language><publisher>England: The Company of Biologists Limited</publisher><subject>Arabidopsis - growth & development ; Arabidopsis Proteins - physiology ; Arabidopsis thaliana ; Biological Clocks ; Environmental Sciences ; Gravitropism ; Indoleacetic Acids - pharmacology ; Meristem - physiology ; Plant Growth Regulators - pharmacology ; Plant Roots - growth & development</subject><ispartof>Development (Cambridge), 2007-02, Vol.134 (4), p.681-690</ispartof><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c429t-5566e45db3240ad56056a7c97bf9f309c8c953fe4e8bee53e22995767f48ce033</citedby><cites>FETCH-LOGICAL-c429t-5566e45db3240ad56056a7c97bf9f309c8c953fe4e8bee53e22995767f48ce033</cites><orcidid>0000-0002-4506-5903</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,776,780,881,3665,27901,27902</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/17215297$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://hal.science/hal-04788651$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>De Smet, Ive</creatorcontrib><creatorcontrib>Tetsumura, Takuya</creatorcontrib><creatorcontrib>De Rybel, Bert</creatorcontrib><creatorcontrib>Frei dit Frey, Nicolas</creatorcontrib><creatorcontrib>Laplaze, Laurent</creatorcontrib><creatorcontrib>Casimiro, Ilda</creatorcontrib><creatorcontrib>Swarup, Ranjan</creatorcontrib><creatorcontrib>Naudts, Mirande</creatorcontrib><creatorcontrib>Vanneste, Steffen</creatorcontrib><creatorcontrib>Audenaert, Dominique</creatorcontrib><creatorcontrib>Inzé, Dirk</creatorcontrib><creatorcontrib>Bennett, Malcolm J</creatorcontrib><creatorcontrib>Beeckman, Tom</creatorcontrib><title>Auxin-dependent regulation of lateral root positioning in the basal meristem of Arabidopsis</title><title>Development (Cambridge)</title><addtitle>Development</addtitle><description>In plants, the developmental mechanisms that regulate the positioning of lateral organs along the primary root are currently unknown. We present evidence on how lateral root initiation is controlled in a spatiotemporal manner in the model plant Arabidopsis thaliana . First, lateral roots are spaced along the main axis in a regular left-right alternating pattern that correlates with gravity-induced waving and depends on AUX1, an auxin influx carrier essential for gravitropic response. Second, we found evidence that the priming of pericycle cells for lateral root initiation might take place in the basal meristem, correlating with elevated auxin sensitivity in this part of the root. This local auxin responsiveness oscillates with peaks of expression at regular intervals of 15 hours. Each peak in the auxin-reporter maximum correlates with the formation of a consecutive lateral root. Third, auxin signaling in the basal meristem triggers pericycle cells for lateral root initiation prior to the action of INDOLE-3-ACETIC ACID14 (SOLITARY ROOT).</description><subject>Arabidopsis - growth & development</subject><subject>Arabidopsis Proteins - physiology</subject><subject>Arabidopsis thaliana</subject><subject>Biological Clocks</subject><subject>Environmental Sciences</subject><subject>Gravitropism</subject><subject>Indoleacetic Acids - pharmacology</subject><subject>Meristem - physiology</subject><subject>Plant Growth Regulators - pharmacology</subject><subject>Plant Roots - growth & development</subject><issn>0950-1991</issn><issn>1477-9129</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkU9r3DAQxUVJaTZpD_kCwadAId7qv6zjsqRJYKGX9tSDkO3xroJtOZK9Sb995a5Jjj2NmPnpvZEeQlcErwnl9FsNxzWmSrAPaEW4UrkmVJ-hFdYC50Rrco4uYnzCGDOp1Cd0ThQlgmq1Qr8306vr8xoG6GvoxyzAfmrt6Hyf-SZLJwi2zYL3Yzb46OaB6_eZ67PxAFlpY5p2EFwcoZtvbIItXe2H6OJn9LGxbYQvS71Ev77f_dw-5Lsf94_bzS6vONVjLoSUwEVdMsqxrYXEQlpVaVU2umFYV0WlBWuAQ1ECCAaUai2UVA0vKsCMXaKvJ92Dbc0QXGfDH-OtMw-bnZl7mKuikIIcSWJvTuwQ_PMEcTSdixW0re3BT9HIInkpKv8LksSJgol39yr4GAM0bysQbOZ4TIrH_IsnsdeL6FR2UL-TSx4JuF2e4vaHFxfAlM63fp--N8460PrBEMYNT5sS9hfWSJo8</recordid><startdate>20070215</startdate><enddate>20070215</enddate><creator>De Smet, Ive</creator><creator>Tetsumura, Takuya</creator><creator>De Rybel, Bert</creator><creator>Frei dit Frey, Nicolas</creator><creator>Laplaze, Laurent</creator><creator>Casimiro, Ilda</creator><creator>Swarup, Ranjan</creator><creator>Naudts, Mirande</creator><creator>Vanneste, Steffen</creator><creator>Audenaert, Dominique</creator><creator>Inzé, Dirk</creator><creator>Bennett, Malcolm J</creator><creator>Beeckman, Tom</creator><general>The Company of Biologists Limited</general><general>Company of Biologists</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>FR3</scope><scope>P64</scope><scope>RC3</scope><scope>7X8</scope><scope>1XC</scope><orcidid>https://orcid.org/0000-0002-4506-5903</orcidid></search><sort><creationdate>20070215</creationdate><title>Auxin-dependent regulation of lateral root positioning in the basal meristem of Arabidopsis</title><author>De Smet, Ive ; 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We present evidence on how lateral root initiation is controlled in a spatiotemporal manner in the model plant Arabidopsis thaliana . First, lateral roots are spaced along the main axis in a regular left-right alternating pattern that correlates with gravity-induced waving and depends on AUX1, an auxin influx carrier essential for gravitropic response. Second, we found evidence that the priming of pericycle cells for lateral root initiation might take place in the basal meristem, correlating with elevated auxin sensitivity in this part of the root. This local auxin responsiveness oscillates with peaks of expression at regular intervals of 15 hours. Each peak in the auxin-reporter maximum correlates with the formation of a consecutive lateral root. 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| source | MEDLINE; EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection; Company of Biologists |
| subjects | Arabidopsis - growth & development Arabidopsis Proteins - physiology Arabidopsis thaliana Biological Clocks Environmental Sciences Gravitropism Indoleacetic Acids - pharmacology Meristem - physiology Plant Growth Regulators - pharmacology Plant Roots - growth & development |
| title | Auxin-dependent regulation of lateral root positioning in the basal meristem of Arabidopsis |
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