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@ARTICLE{Chen:11557,
author = {Chen, X. and Pierik, R. and Peeters, A.J.M. and Poorter, H.
and Visser, E.J.W. and Huber, H. and de Kroon, H. and
Voesenek, L.A.C.J.},
title = {{E}ndogenous {A}bscisic {A}cid as a {K}ey {S}witch for
{N}atural {V}ariation in {F}looding-{I}nduced {S}hoot
{E}longation},
journal = {Plant physiology},
volume = {154},
issn = {0032-0889},
address = {Rockville, Md.: Soc.},
publisher = {JSTOR},
reportid = {PreJuSER-11557},
pages = {969 - 977},
year = {2010},
note = {This work was supported by the Netherlands Organization for
Scientific Research (NWO-ALW; VENI grant no. 86306001 to
R.P.).},
abstract = {Elongation of leaves and stem is a key trait for survival
of terrestrial plants during shallow but prolonged floods
that completely submerge the shoot. However, natural floods
at different locations vary strongly in duration and depth,
and, therefore, populations from these locations are
subjected to different selection pressure, leading to
intraspecific variation. Here, we identified the signal
transduction component that causes response variation in
shoot elongation among two accessions of the wetland plant
Rumex palustris. These accessions differed 2-fold in petiole
elongation rates upon submergence, with fast elongation
found in a population from a river floodplain and slow
elongation in plants from a lake bank. Fast petiole
elongation under water consumes carbohydrates and depends on
the (inter)action of the plant hormones ethylene, abscisic
acid, and gibberellic acid. We found that carbohydrate
levels and dynamics in shoots did not differ between the
fast and slow elongating plants, but that the level of
ethylene-regulated abscisic acid in petioles, and hence
gibberellic acid responsiveness of these petioles explained
the difference in shoot elongation upon submergence. Since
this is the exact signal transduction level that also
explains the variation in flooding-induced shoot elongation
among plant species (namely, R. palustris and Rumex
acetosa), we suggest that natural selection results in
similar modification of regulatory pathways within and
between species.},
keywords = {Abscisic Acid: physiology / Carbohydrates: analysis /
Ethylenes: metabolism / Floods / Gibberellins: physiology /
Molecular Sequence Data / Plant Growth Regulators:
physiology / Plant Shoots: growth $\&$ development / RNA,
Plant: genetics / Rumex: genetics / Rumex: growth $\&$
development / Rumex: physiology / Signal Transduction /
Water: physiology / Carbohydrates (NLM Chemicals) /
Ethylenes (NLM Chemicals) / Gibberellins (NLM Chemicals) /
Plant Growth Regulators (NLM Chemicals) / RNA, Plant (NLM
Chemicals) / Abscisic Acid (NLM Chemicals) / ethylene (NLM
Chemicals) / gibberellic acid (NLM Chemicals) / Water (NLM
Chemicals) / J (WoSType)},
cin = {ICG-3},
ddc = {580},
cid = {I:(DE-Juel1)ICG-3-20090406},
pnm = {Terrestrische Umwelt},
pid = {G:(DE-Juel1)FUEK407},
shelfmark = {Plant Sciences},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:20699400},
pmc = {pmc:PMC2949041},
UT = {WOS:000282512300067},
doi = {10.1104/pp.110.162792},
url = {https://juser.fz-juelich.de/record/11557},
}