SEUSS and LEUNIG regulate cell proliferation, vascular development and organ polarity in Arabidopsis petals.

Planta
Robert G FranksRobert L Fischer

Abstract

Unlike in animals where cell migrations and programmed cell death play key roles in organ shape determination, in plants organ shape is largely a result of coordinated cellular growth (cell divisions and cell elongations). We have investigated the role of the SEUSS and LEUNIG genes in Arabidopsis thaliana (L.) Heynh. petal development to better understand the molecular mechanisms through which cellular growth and organ shape are coordinated in plants. SEUSS and LEUNIG encode components of a putative transcriptional regulatory complex that controls organ identity specification through the repression of the floral organ identity gene AGAMOUS. SEUSS and LEUNIG also regulate petal shape through AGAMOUS-independent mechanisms; however, the molecular and cellular actions of SEUSS and LEUNIG during petal development are unknown. Here we show that SEUSS and LEUNIG control blade cell number and vasculature development within the petal. Furthermore, SEUSS and LEUNIG regulate petal polarity along the adaxial/abaxial axis. We present a model where SEUSS and LEUNIG are required to potentiate the key polarity genes PHABULOSA and FILAMENTOUS FLOWER/YABBY1 and thus influence cellular growth within the developing petal blade.

References

Aug 1, 1990·The Plant Cell·D R SmythE M Meyerowitz
Jan 1, 1989·The Plant Cell·J L BowmanE M Meyerowitz
Oct 7, 1997·Molecular and Cellular Biology·L W Jurata, G N Gill
Jan 19, 2000·Proceedings of the National Academy of Sciences of the United States of America·Y Mizukami, R L Fischer
Nov 1, 2000·Proceedings of the National Academy of Sciences of the United States of America·J Conner, Z Liu
Feb 13, 2001·The Plant Journal : for Cell and Molecular Biology·D OtsugaS E Clark
Feb 24, 2001·Nature·G Theissen, H Saedler
Jun 8, 2001·Nature·R A KerstetterR S Poethig
Aug 30, 2001·Current Biology : CB·Y EshedJ L Bowman
Jan 29, 2002·The Journal of Biological Chemistry·Eiko KanayaKiyotaka Okada
Feb 8, 2002·Developmental Cell·Jan U Lohmann, Detlef Weigel
Jul 1, 1997·The Plant Cell·T. Nelson, N. Dengler
Nov 6, 2002·The Plant Cell·Mande K KumaranVenkatesan Sundaresan
Oct 17, 2003·Current Biology : CB·John F EmeryJohn L Bowman
Oct 23, 2003·Annual Review of Cell and Developmental Biology·Moriyah Zik, Vivian F Irish
Jul 28, 2004·Proceedings of the National Academy of Sciences of the United States of America·Vaniyambadi V SridharZhongchi Liu
Sep 11, 2004·Development·Jennifer Pfluger, Patricia Zambryski

❮ Previous
Next ❯

Citations

Jan 1, 2010·The Arabidopsis Book·Elena R Alvarez-BuyllaYara E Sánchez-Corrales
May 16, 2009·Journal of Experimental Botany·Vivian F Irish
Sep 6, 2013·Journal of Experimental Botany·Shannon M BemisKeiko U Torii
Jan 7, 2016·Frontiers in Plant Science·Glenn T HoweSteven H Strauss
Mar 4, 2008·Trends in Plant Science·Zhongchi Liu, Vidyadhar Karmarkar
Jul 8, 2008·Trends in Plant Science·Vivian F Irish
Apr 6, 2012·Plant Signaling & Behavior·Barry CausierBrendan Davies
Feb 13, 2019·Journal of Experimental Botany·Grace L ChongloiUsha Vijayraghavan
Jan 5, 2017·Molecular Biology and Evolution·Kai C PfannebeckerAnnette Becker
Jun 1, 2018·International Journal of Genomics·Anna V ShchennikovaKonstantin G Skryabin
Feb 6, 2017·Proceedings of the National Academy of Sciences of the United States of America·Shou-Ling XuZhi-Yong Wang
May 1, 2021·International Journal of Molecular Sciences·Marina A RomanovaOlga V Voitsekhovskaja

❮ Previous
Next ❯

Related Concepts

Related Feeds

Apoptosis

Apoptosis is a specific process that leads to programmed cell death through the activation of an evolutionary conserved intracellular pathway leading to pathognomic cellular changes distinct from cellular necrosis