BLADE-ON-PETIOLE1 and 2 Control Arabidopsis Lateral Organ Fate through Regulation of LOB Domain and Adaxial-Abaxial Polarity Genes
We report a novel function for BLADE-ON-PETIOLE1 (BOP1) and BOP2 in regulating Arabidopsis thaliana lateral organ cell fate and polarity, through the analysis of loss-of-function mutants and transgenic plants that ectopically express BOP1 or BOP2. 35S:BOP1 and 35S:BOP2 plants exhibit a very short an...
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| Veröffentlicht in: | The Plant cell 2007-06, Vol.19 (6), p.1809-1825 |
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| creator | Ha, Chan Man Jun, Ji Hyung Nam, Hong Gil Fletcher, Jennifer C |
| description | We report a novel function for BLADE-ON-PETIOLE1 (BOP1) and BOP2 in regulating Arabidopsis thaliana lateral organ cell fate and polarity, through the analysis of loss-of-function mutants and transgenic plants that ectopically express BOP1 or BOP2. 35S:BOP1 and 35S:BOP2 plants exhibit a very short and compact stature, hyponastic leaves, and downward-orienting siliques. We show that the LATERAL ORGAN BOUNDARIES (LOB) domain genes ASYMMETRIC LEAVES2 (AS2) and LOB are upregulated in 35S:BOP and downregulated in bop mutant plants. Ectopic expression of BOP1 or BOP2 also results in repression of class I knox gene expression. We further demonstrate a role for BOP1 and BOP2 in establishing the adaxial-abaxial polarity axis in the leaf petiole, where they regulate PHB and FIL expression and overlap in function with AS1 and AS2. Interestingly, during this study, we found that KANADI1 (KAN1) and KAN2 act to promote adaxial organ identity in addition to their well-known role in promoting abaxial organ identity. Our data indicate that BOP1 and BOP2 act in cells adjacent to the lateral organ boundary to repress genes that confer meristem cell fate and induce genes that promote lateral organ fate and polarity, thereby restricting the developmental potential of the organ-forming cells and facilitating their differentiation. |
| doi_str_mv | 10.1105/tpc.107.051938 |
| format | Article |
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We show that the LATERAL ORGAN BOUNDARIES (LOB) domain genes ASYMMETRIC LEAVES2 (AS2) and LOB are upregulated in 35S:BOP and downregulated in bop mutant plants. Ectopic expression of BOP1 or BOP2 also results in repression of class I knox gene expression. We further demonstrate a role for BOP1 and BOP2 in establishing the adaxial-abaxial polarity axis in the leaf petiole, where they regulate PHB and FIL expression and overlap in function with AS1 and AS2. Interestingly, during this study, we found that KANADI1 (KAN1) and KAN2 act to promote adaxial organ identity in addition to their well-known role in promoting abaxial organ identity. Our data indicate that BOP1 and BOP2 act in cells adjacent to the lateral organ boundary to repress genes that confer meristem cell fate and induce genes that promote lateral organ fate and polarity, thereby restricting the developmental potential of the organ-forming cells and facilitating their differentiation.</description><identifier>ISSN: 1040-4651</identifier><identifier>ISSN: 1532-298X</identifier><identifier>EISSN: 1532-298X</identifier><identifier>DOI: 10.1105/tpc.107.051938</identifier><identifier>PMID: 17601823</identifier><language>eng</language><publisher>Rockville: American Society of Plant Biologists</publisher><subject>Arabidopsis thaliana ; Cardiovascular system ; cell differentiation ; Gene expression regulation ; Genes ; genetic variation ; Lateral Organ Boundaries ; Leaves ; mutants ; Petioles ; Phenotypes ; Plant cells ; plant development ; plant growth ; Plants ; Seedlings ; Transgenic plants</subject><ispartof>The Plant cell, 2007-06, Vol.19 (6), p.1809-1825</ispartof><rights>Copyright 2007 American Society of Plant Biologists</rights><rights>Copyright American Society of Plant Physiologists Jun 2007</rights><rights>Copyright © 2007, American Society of Plant Biologists</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c431t-6b5d69c131ff5d9ae9a1a5c08f69fffa40b9fc698c22bde6082a513128f0e3663</citedby><cites>FETCH-LOGICAL-c431t-6b5d69c131ff5d9ae9a1a5c08f69fffa40b9fc698c22bde6082a513128f0e3663</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/20077063$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/20077063$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>230,314,780,784,803,885,27924,27925,58017,58250</link.rule.ids></links><search><creatorcontrib>Ha, Chan Man</creatorcontrib><creatorcontrib>Jun, Ji Hyung</creatorcontrib><creatorcontrib>Nam, Hong Gil</creatorcontrib><creatorcontrib>Fletcher, Jennifer C</creatorcontrib><title>BLADE-ON-PETIOLE1 and 2 Control Arabidopsis Lateral Organ Fate through Regulation of LOB Domain and Adaxial-Abaxial Polarity Genes</title><title>The Plant cell</title><description>We report a novel function for BLADE-ON-PETIOLE1 (BOP1) and BOP2 in regulating Arabidopsis thaliana lateral organ cell fate and polarity, through the analysis of loss-of-function mutants and transgenic plants that ectopically express BOP1 or BOP2. 35S:BOP1 and 35S:BOP2 plants exhibit a very short and compact stature, hyponastic leaves, and downward-orienting siliques. We show that the LATERAL ORGAN BOUNDARIES (LOB) domain genes ASYMMETRIC LEAVES2 (AS2) and LOB are upregulated in 35S:BOP and downregulated in bop mutant plants. Ectopic expression of BOP1 or BOP2 also results in repression of class I knox gene expression. We further demonstrate a role for BOP1 and BOP2 in establishing the adaxial-abaxial polarity axis in the leaf petiole, where they regulate PHB and FIL expression and overlap in function with AS1 and AS2. Interestingly, during this study, we found that KANADI1 (KAN1) and KAN2 act to promote adaxial organ identity in addition to their well-known role in promoting abaxial organ identity. Our data indicate that BOP1 and BOP2 act in cells adjacent to the lateral organ boundary to repress genes that confer meristem cell fate and induce genes that promote lateral organ fate and polarity, thereby restricting the developmental potential of the organ-forming cells and facilitating their differentiation.</description><subject>Arabidopsis thaliana</subject><subject>Cardiovascular system</subject><subject>cell differentiation</subject><subject>Gene expression regulation</subject><subject>Genes</subject><subject>genetic variation</subject><subject>Lateral Organ Boundaries</subject><subject>Leaves</subject><subject>mutants</subject><subject>Petioles</subject><subject>Phenotypes</subject><subject>Plant cells</subject><subject>plant development</subject><subject>plant growth</subject><subject>Plants</subject><subject>Seedlings</subject><subject>Transgenic plants</subject><issn>1040-4651</issn><issn>1532-298X</issn><issn>1532-298X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNpdkUFv1DAQhSMEoqVw5YawOHDLMnZiO74gbbfbUiliK2glbtYksXe9ysZbO0Httb8c060qwWlm9L55mtHLsvcUZpQC_zLu2xkFOQNOVVG9yI4pL1jOVPXrZeqhhLwUnB5lb2LcAgCVVL3OjqgUQCtWHGcPp_X8bJmvvudXy-vLVb2kBIeOMLLwwxh8T-YBG9f5fXSR1DiagD1ZhTUO5DxNZNwEP6035IdZTz2Ozg_EW1KvTsmZ36EbHt3mHd457PN581jJle8xuPGeXJjBxLfZK4t9NO-e6kl2c768XnzL69XF5WJe521Z0DEXDe-EamlBreWdQqOQIm-hskJZa7GERtlWqKplrOmMgIohTzSrLJhCiOIk-3rw3U_NznStSQ9ir_fB7TDca49O_6sMbqPX_reminPJeDL4_GQQ_O1k4qh3Lram73EwfoqJk6UsmUrgp__ArZ_CkJ7TjFayKrmQCZodoDb4GIOxz5dQ0H-z1Snb1Et9yDYtfDgsbOPowzPNAKQEUST940G36DWug4v65icDWiRAcQpQ_AFvF6hD</recordid><startdate>20070601</startdate><enddate>20070601</enddate><creator>Ha, Chan Man</creator><creator>Jun, Ji Hyung</creator><creator>Nam, Hong Gil</creator><creator>Fletcher, Jennifer C</creator><general>American Society of Plant Biologists</general><scope>FBQ</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>4T-</scope><scope>7QO</scope><scope>7TM</scope><scope>7X2</scope><scope>7X7</scope><scope>7XB</scope><scope>88A</scope><scope>88E</scope><scope>88I</scope><scope>8AF</scope><scope>8AO</scope><scope>8FD</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>LK8</scope><scope>M0K</scope><scope>M0S</scope><scope>M1P</scope><scope>M2P</scope><scope>M7P</scope><scope>P64</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>Q9U</scope><scope>RC3</scope><scope>S0X</scope><scope>5PM</scope></search><sort><creationdate>20070601</creationdate><title>BLADE-ON-PETIOLE1 and 2 Control Arabidopsis Lateral Organ Fate through Regulation of LOB Domain and Adaxial-Abaxial Polarity Genes</title><author>Ha, Chan Man ; 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We show that the LATERAL ORGAN BOUNDARIES (LOB) domain genes ASYMMETRIC LEAVES2 (AS2) and LOB are upregulated in 35S:BOP and downregulated in bop mutant plants. Ectopic expression of BOP1 or BOP2 also results in repression of class I knox gene expression. We further demonstrate a role for BOP1 and BOP2 in establishing the adaxial-abaxial polarity axis in the leaf petiole, where they regulate PHB and FIL expression and overlap in function with AS1 and AS2. Interestingly, during this study, we found that KANADI1 (KAN1) and KAN2 act to promote adaxial organ identity in addition to their well-known role in promoting abaxial organ identity. Our data indicate that BOP1 and BOP2 act in cells adjacent to the lateral organ boundary to repress genes that confer meristem cell fate and induce genes that promote lateral organ fate and polarity, thereby restricting the developmental potential of the organ-forming cells and facilitating their differentiation.</abstract><cop>Rockville</cop><pub>American Society of Plant Biologists</pub><pmid>17601823</pmid><doi>10.1105/tpc.107.051938</doi><tpages>17</tpages><oa>free_for_read</oa></addata></record> |
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| source | JSTOR Archive Collection A-Z Listing; Oxford University Press Journals All Titles (1996-Current); EZB-FREE-00999 freely available EZB journals |
| subjects | Arabidopsis thaliana Cardiovascular system cell differentiation Gene expression regulation Genes genetic variation Lateral Organ Boundaries Leaves mutants Petioles Phenotypes Plant cells plant development plant growth Plants Seedlings Transgenic plants |
| title | BLADE-ON-PETIOLE1 and 2 Control Arabidopsis Lateral Organ Fate through Regulation of LOB Domain and Adaxial-Abaxial Polarity Genes |
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