Mutations in the Diageotropica (Dgt) gene uncouple patterned cell division during lateral root initiation from proliferative cell division in the pericycle

The Plant Journal : for Cell and Molecular Biology
Maria G IvanchenkoJ G Dubrovsky

Abstract

In angiosperms, root branching requires a continuous re-initiation of new root meristems. Through some unknown mechanism, in most eudicots pericycle cells positioned against the protoxylem change identity and initiate patterned division, leading to formation of lateral root primordia that further develop into lateral roots. This process is auxin-regulated. We have observed that three mutations in the Diageotropica (Dgt) gene in tomato prevent primordium formation. Detailed analysis of one of these mutants, dgt1-1, demonstrated that the mutation does not abolish the proliferative capacity of the xylem-adjacent pericycle in the differentiated root portion. Files of shortened pericycle cells found in dgt1-1 roots were unrelated to primordium formation. Auxin application stimulated this unusual proliferation, leading to formation of a multi-layered xylem-adjacent pericycle, but did not rescue the primordium formation. In contrast to wild type, auxin could not induce any cell divisions in the pericycle of the most distal dgt1-1 root-tip portion. In wild-type roots, the Dgt gene promoter was expressed strongly in lateral root primordia starting from their initiation, and on auxin treatment was induced in the primary root meristem. Au...Continue Reading

References

Dec 1, 1990·Proceedings of the National Academy of Sciences of the United States of America·C S GasserS M Brown
Sep 1, 1995·Genes & Development·J L CelenzaG R Fink
Jul 24, 1998·The Plant Journal : for Cell and Molecular Biology·M DelarueC Bellini
Mar 11, 2000·Plant Physiology·N M KerkL J Feldman
Dec 13, 2000·Proceedings of the National Academy of Sciences of the United States of America·I BarlierC Bellini
Dec 15, 2000·Plant Physiology·J G DubrovskyT L Rost
Feb 13, 2001·Current Opinion in Plant Biology·T Berleth, T Sachs
Apr 3, 2001·The Plant Cell·I CasimiroM Bennett
Apr 28, 2001·Journal of Experimental Botany·T BeeckmanD Inzé
Jan 1, 1989·Plant Physiology·S G DanielR E Cleland
Feb 28, 2002·The Plant Journal : for Cell and Molecular Biology·Hidehiro FukakiMasao Tasaka
Oct 9, 2002·The Plant Cell·Kristiina HimanenTom Beeckman
Dec 24, 2002·Current Opinion in Plant Biology·Jirí Friml
Jan 17, 2003·Plant Physiology·Virginia Balbi, Terri L Lomax
Apr 25, 2003·Trends in Plant Science·Ilda CasimiroMalcolm J Bennett
Nov 13, 2003·Journal of Plant Physiology·Sung Hun ParkRoberta H Smith
Jan 21, 2004·The Plant Journal : for Cell and Molecular Biology·Raymond J DiDonatoJohn L Celenza
Mar 31, 2004·Plant Physiology·Patrick G N RomanoJulie E Gray
Mar 8, 2005·Annals of Botany·Andrew W Woodward, Bonnie Bartel
Mar 18, 2005·The Plant Cell·Karin LjungGöran Sandberg
Apr 9, 2005·Trends in Plant Science·Ivan A PaponovKlaus Palme
May 5, 2005·The New Phytologist·Patrick RomanoSheng Luan
Oct 21, 2005·The Plant Journal : for Cell and Molecular Biology·Hidehiro FukakiMasao Tasaka
Nov 1, 1986·Plant Physiology·M O Kelly, K J Bradford

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Citations

Jul 5, 2012·Journal of Plant Research·Huijuan YangHongzhi Shi
Nov 5, 2008·Plant Molecular Biology·Hidehiro Fukaki, Masao Tasaka
Jul 16, 2008·Nature Cell Biology·Kamal SwarupMalcolm J Bennett
Feb 6, 2010·Proceedings of the National Academy of Sciences of the United States of America·Ive De SmetTom Beeckman
Sep 13, 2008·Molecular Plant-microbe Interactions : MPMI·Jessica N BrazeltonCatharina Coenen
Dec 11, 2007·The Plant Cell·Laurent LaplazeMalcolm Bennett
Dec 21, 2006·Annual Review of Plant Biology·Karen S OsmontChristian S Hardtke
Feb 10, 2012·Development·Meirav LavyMark Estelle
Mar 5, 2016·Plant Science : an International Journal of Experimental Plant Biology·Markus GeislerMaria Ivanchenko
May 23, 2012·Plant Physiology and Biochemistry : PPB·Priscila L GratãoRicardo A Azevedo
Sep 20, 2011·Trends in Plant Science·John W Chandler
Oct 12, 2010·Current Opinion in Plant Biology·Eva Benková, Agnieszka Bielach
Apr 26, 2008·The Plant Journal : for Cell and Molecular Biology·Maria G IvanchenkoJoseph G Dubrovsky
Nov 26, 2010·The New Phytologist·Meredith T Hanlon, Catharina Coenen
Nov 26, 2010·The Plant Journal : for Cell and Molecular Biology·Maria G IvanchenkoJoseph G Dubrovsky
May 26, 2010·The Plant Journal : for Cell and Molecular Biology·Maria Laura VidozPierdomenico Perata
Oct 2, 2009·The Plant Journal : for Cell and Molecular Biology·Sangeeta NegiGloria K Muday
Jul 16, 2015·The Plant Journal : for Cell and Molecular Biology·Ziv SpiegelmanShmuel Wolf
Jul 25, 2015·Trends in Plant Science·Magdalena M Julkowska, Christa Testerink
Sep 7, 2016·Frontiers in Plant Science·Richard W Zobel
Nov 21, 2017·Molecular Plant-microbe Interactions : MPMI·Elizabeth FrenchAnjali S Iyer-Pascuzzi
Nov 9, 2019·The Plant Journal : for Cell and Molecular Biology·Naveen MalikAkhilesh K Tyagi
Jan 6, 2017·Journal of Experimental Botany·Ziv SpiegelmanShmuel Wolf
Apr 4, 2019·Frontiers in Plant Science·Héctor H Torres-MartínezJoseph G Dubrovsky
Nov 17, 2020·Frontiers in Plant Science·Harpreet SinghPrabhjeet Singh
Nov 19, 2020·Anais Da Academia Brasileira De Ciências·Luiz C N Dos SantosRogÉrio F Carvalho
Oct 13, 2009·Plant Signaling & Behavior·Claudia Anahí Pérez TorresLuis Herrera Estrella
May 23, 2012·Journal of Plant Physiology·Francesco MignolliPiero Picciarelli

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