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Repression of early lateral root initiation events by transient water deficit in barley and maize

Aurélie Babé, Tristan Lavigne, Jean-Philippe Séverin, Kerstin A Nagel, Achim Walter, François Chaumont, Henri Batoko, Tom Beeckman UGent and Xavier Draye (2012) PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES. 367(1595). p.1534-1541
abstract
The formation of lateral roots (LRs) is a key driver of root system architecture and developmental plasticity. The first stage of LR formation, which leads to the acquisition of founder cell identity in the pericycle, is the primary determinant of root branching patterns. The fact that initiation events occur asynchronously in a very small number of cells inside the parent root has been a major difficulty in the study of the molecular regulation of branching patterns. Inducible systems that trigger synchronous lateral formation at predictable sites have proven extremely valuable in Arabidopsis to decipher the first steps of LR formation. Here, we present a LR repression system for cereals that relies on a transient water-deficit treatment, which blocks LR initiation before the first formative divisions. Using a time-lapse approach, we analysed the dynamics of this repression along growing roots and were able to show that it targets a very narrow developmental window of the initiation process. Interestingly, the repression can be exploited to obtain negative control root samples where LR initiation is absent. This system could be instrumental in the analysis of the molecular basis of drought-responsive as well as intrinsic pathways of LR formation in cereals.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
ZEA-MAYS, AUXIN TRANSPORT, SYSTEM ARCHITECTURE, ARABIDOPSIS-THALIANA, maize, barley, water deficit, lateral root initiation, DYNAMICS, RESPONSES, QUANTITATIVE-ANALYSIS, ABSCISIC-ACID, GROWTH, MERISTEM
journal title
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
Philos. Trans. R. Soc. B-Biol. Sci.
volume
367
issue
1595
pages
1534 - 1541
Web of Science type
Article
Web of Science id
000303107900011
JCR category
BIOLOGY
JCR impact factor
6.23 (2012)
JCR rank
6/83 (2012)
JCR quartile
1 (2012)
ISSN
0962-8436
DOI
10.1098/rstb.2011.0240
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
2111585
handle
http://hdl.handle.net/1854/LU-2111585
date created
2012-05-23 13:15:31
date last changed
2012-05-24 12:20:56
@article{2111585,
  abstract     = {The formation of lateral roots (LRs) is a key driver of root system architecture and developmental plasticity. The first stage of LR formation, which leads to the acquisition of founder cell identity in the pericycle, is the primary determinant of root branching patterns. The fact that initiation events occur asynchronously in a very small number of cells inside the parent root has been a major difficulty in the study of the molecular regulation of branching patterns. Inducible systems that trigger synchronous lateral formation at predictable sites have proven extremely valuable in Arabidopsis to decipher the first steps of LR formation. Here, we present a LR repression system for cereals that relies on a transient water-deficit treatment, which blocks LR initiation before the first formative divisions. Using a time-lapse approach, we analysed the dynamics of this repression along growing roots and were able to show that it targets a very narrow developmental window of the initiation process. Interestingly, the repression can be exploited to obtain negative control root samples where LR initiation is absent. This system could be instrumental in the analysis of the molecular basis of drought-responsive as well as intrinsic pathways of LR formation in cereals.},
  author       = {Bab{\'e}, Aur{\'e}lie and Lavigne, Tristan and S{\'e}verin, Jean-Philippe and Nagel, Kerstin A and Walter, Achim and Chaumont, Fran\c{c}ois and Batoko, Henri and Beeckman, Tom and Draye, Xavier},
  issn         = {0962-8436},
  journal      = {PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES},
  keyword      = {ZEA-MAYS,AUXIN TRANSPORT,SYSTEM ARCHITECTURE,ARABIDOPSIS-THALIANA,maize,barley,water deficit,lateral root initiation,DYNAMICS,RESPONSES,QUANTITATIVE-ANALYSIS,ABSCISIC-ACID,GROWTH,MERISTEM},
  language     = {eng},
  number       = {1595},
  pages        = {1534--1541},
  title        = {Repression of early lateral root initiation events by transient water deficit in barley and maize},
  url          = {http://dx.doi.org/10.1098/rstb.2011.0240},
  volume       = {367},
  year         = {2012},
}

Chicago
Babé, Aurélie, Tristan Lavigne, Jean-Philippe Séverin, Kerstin A Nagel, Achim Walter, François Chaumont, Henri Batoko, Tom Beeckman, and Xavier Draye. 2012. “Repression of Early Lateral Root Initiation Events by Transient Water Deficit in Barley and Maize.” Philosophical Transactions of the Royal Society B-biological Sciences 367 (1595): 1534–1541.
APA
Babé, A., Lavigne, T., Séverin, J.-P., Nagel, K. A., Walter, A., Chaumont, F., Batoko, H., et al. (2012). Repression of early lateral root initiation events by transient water deficit in barley and maize. PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES, 367(1595), 1534–1541.
Vancouver
1.
Babé A, Lavigne T, Séverin J-P, Nagel KA, Walter A, Chaumont F, et al. Repression of early lateral root initiation events by transient water deficit in barley and maize. PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES. 2012;367(1595):1534–41.
MLA
Babé, Aurélie, Tristan Lavigne, Jean-Philippe Séverin, et al. “Repression of Early Lateral Root Initiation Events by Transient Water Deficit in Barley and Maize.” PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES 367.1595 (2012): 1534–1541. Print.