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@ARTICLE{Bab:21002,
author = {Babé, A. and Lavigne, T. and Séverin, J.-P. and Nagel,
K.A. and Walter, A. and Chaumont, F. and Batoko, H. and
Beeckman, T. and Draye, X.},
title = {{R}epression of early lateral root initiation events by
transient water deficit in barley and maize},
journal = {Philosophical Transactions of the Royal Society B:
Biological Sciences},
volume = {367},
issn = {0080-4622},
address = {London},
publisher = {JSTOR},
reportid = {PreJuSER-21002},
pages = {1534 - 1541},
year = {2012},
note = {We thank the Communaute francaise de Belgique (ARC 0510-329
grant and FRIA fellowships to A.B. and T.L.) and the Belgian
Science Policy (BARN project) for financial support. We are
also grateful to Nathalie Wuyts and anonymous referees for
constructive comments on a former version of the
manuscript.},
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.},
keywords = {Biological Transport / Cell Division / Droughts / Hordeum:
drug effects / Hordeum: growth $\&$ development / Hordeum:
metabolism / Indoleacetic Acids: metabolism / Indoleacetic
Acids: pharmacology / Osmotic Pressure / Plant Cells:
metabolism / Plant Roots: drug effects / Plant Roots: growth
$\&$ development / Plant Roots: metabolism / Signal
Transduction / Time Factors / Water: metabolism / Zea mays:
drug effects / Zea mays: growth $\&$ development / Zea mays:
metabolism / Indoleacetic Acids (NLM Chemicals) / Water (NLM
Chemicals) / J (WoSType)},
cin = {IBG-2},
ddc = {570},
cid = {I:(DE-Juel1)IBG-2-20101118},
pnm = {Terrestrische Umwelt},
pid = {G:(DE-Juel1)FUEK407},
shelfmark = {Biology},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:22527396},
pmc = {pmc:PMC3321690},
UT = {WOS:000303107900011},
doi = {10.1098/rstb.2011.0240},
url = {https://juser.fz-juelich.de/record/21002},
}