A Kinase-Phosphatase-Transcription Factor Module Regulates Adventitious Root Emergence in Arabidopsis Root-Hypocotyl Junctions.

Molecular Plant
Zechen BaiWei Chi

Abstract

Adventitious roots form from non-root tissues as part of normal development or in response to stress or wounding. The root primordia form in the source tissue, and during emergence the adventitious roots penetrate the inner cell layers and the epidermis; however, the mechanisms underlying this emergence remain largely unexplored. Here, we report that a regulatory module composed of the AP2/ERF transcription factor ABSCISIC ACID INSENSITIVE 4 (ABI4), the MAP kinases MPK3 and MPK6, and the phosphatase PP2C12 plays an important role in the emergence of junction adventitious roots (J-ARs) from the root-hypocotyl junctions in Arabidopsis thaliana. ABI4 negatively regulates J-AR emergence, preventing the accumulation of reactive oxygen species and death of epidermal cells, which would otherwise facilitate J-AR emergence. Phosphorylation by MPK3/MPK6 activates ABI4 and dephosphorylation by PP2C12 inactivates ABI4. MPK3/MPK6 also directly phosphorylate and inactivate PP2C12 during J-AR emergence. We propose that this "double-check" mechanism increases the robustness of MAP kinase signaling and finely regulates the local programmed cell death required for J-AR emergence.

References

Nov 26, 1999·The Plant Journal : for Cell and Molecular Biology·J F Martínez-GarcíaP H Quail
Sep 6, 2000·The Plant Journal : for Cell and Molecular Biology·R J LabyS I Gibson
Oct 13, 2001·Current Opinion in Plant Biology·G TenaJ Sheen
Feb 15, 2002·The Plant Journal : for Cell and Molecular Biology·Rishikesh P BhaleraoGöran Sandberg
Sep 6, 2002·Biochemical Pharmacology·Jacques PouysségurPhilippe Lenormand
Oct 8, 2004·The Plant Journal : for Cell and Molecular Biology·Michael WalterJörg Kudla
Dec 1, 2004·Annual Review of Genetics·Monica A Schwartz, Hiten D Madhani
May 10, 2007·Nature Protocols·Tine E ThingholmMartin R Larsen
Jul 27, 2007·The Plant Journal : for Cell and Molecular Biology·Nenad MalenicaChristian Luschnig
Jul 16, 2008·Nature Cell Biology·Kamal SwarupMalcolm J Bennett
Sep 24, 2008·Proceedings of the National Academy of Sciences of the United States of America·Sung Ki ChoJohn C Walker
Oct 16, 2008·The Journal of Biological Chemistry·Nan HaoHenrik G Dohlman
Jun 30, 2009·Trends in Plant Science·Benjamin PéretMalcolm J Bennett
Oct 3, 2009·Nature Protocols·Eiji KinoshitaTohru Koike
May 6, 2010·Annual Review of Plant Biology·Maria Cristina Suarez RodriguezJohn Mundy
Feb 8, 2011·The Plant Cell·Lifang HuDabing Zhang
Jun 12, 2012·Trends in Plant Science·Róbert DócziLászló Bögre
Jun 26, 2012·The FEBS Journal·Stefan FuchsAlois Schweighofer
Jul 21, 2012·The FEBS Journal·Christopher J Caunt, Stephen M Keyse
Nov 28, 2012·Trends in Plant Science·Julia J WindSjef C Smeekens
May 25, 2013·Trends in Plant Science·Julien LavenusLaurent Laplaze
Feb 22, 2014·Annual Review of Plant Biology·Catherine BelliniIrene Perrone
Mar 13, 2014·Journal of Experimental Botany·Peter S Roycewicz, Jocelyn E Malamy
Oct 11, 2014·Trends in Plant Science·Andrea Pitzschke
Oct 18, 2014·Frontiers in Plant Science·Inge VerstraetenDanny Geelen
Dec 3, 2014·Current Opinion in Plant Biology·Amaya Vilches-Barro, Alexis Maizel
Dec 3, 2014·Trends in Plant Science·Juan Xu, Shuqun Zhang
Dec 25, 2015·Plant Physiology·Bianka Steffens, Amanda Rasmussen
Jan 23, 2016·Seminars in Cell & Developmental Biology·Andrew M Kidger, Stephen M Keyse
Apr 19, 2016·Plant Signaling & Behavior·Federica Della RovereMaria Maddalena Altamura
Oct 23, 2016·Cellular and Molecular Life Sciences : CMLS·David LakeJürgen Müller
Jul 12, 2016·Nature Communications·Hailong GuoLixin Zhang

❮ Previous
Next ❯

Related Concepts

Related Feeds

Blood Brain Barrier

The blood brain barrier is a border that separates blood from cerebrospinal fluid. Discover the latest search on this highly selective semipermeable membrane here.