% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@ARTICLE{Pitann:16801,
author = {Pitann, B. and Kranz, T. and Zörb, C. and Walter, A. and
Schurr, U. and Mühling, K.H.},
title = {{A}poplastic p{H} and growth in expanding leaves of {V}icia
faba under salinity},
journal = {Environmental and experimental botany},
volume = {74},
issn = {0098-8472},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {PreJuSER-16801},
pages = {31 - 36},
year = {2011},
note = {Record converted from VDB: 12.11.2012},
abstract = {Salinity affects water availability in the soil and
subsequently the plant uptake capacity. Upon exposure to
salt stress, leaf growth in monocot plants has been shown to
be reduced instantaneously, followed by a gradual
acclimation. The growth reactions are caused by an initial
water deficit and an accompanied osmotic effect, followed by
an IAA-induced sequestration of protons into the apoplast
that increases leaf growth again as explained by the acid
growth theory. In this study, we investigated the dynamics
of growth reactions and apoplastic pH in leaves of the dicot
Vicia faba in the presence of NaCl during the initiation of
salt stress. Concurrent changes in apoplastic pH were
detected by ratiometric fluorescence microscopy using the
fluorescent dye fluorescein tetramethylrhodamine dextran. To
elucidate the possible relation between the dynamics of leaf
growth and apoplastic pH, results of the ratio imaging
technique were combined with an in vivo growth analysis
imaging approach. Leaf growth rate of V. faba was highest in
the dusk and the early night phase: at this time a
concomitant decrease of the apoplastic pH was observed.
Under salinity, the apoplastic pH in leaves of V. faba
increased with a simultaneous decrease of leaf growth
towards increasing developmental stages, but with complex
aberrations in the 24-h-leaf-growth pattern compared to
control leaves. In conclusion, these results show that salt
stress leads to an increase in apoplastic pH and to a
declined leaf growth activity with complex 24-h-interactions
of growth and pH in V. faba. Crown Copyright (C) 2011
Published by Elsevier B.V. All rights reserved.},
keywords = {J (WoSType)},
cin = {IBG-2},
ddc = {580},
cid = {I:(DE-Juel1)IBG-2-20101118},
pnm = {Terrestrische Umwelt},
pid = {G:(DE-Juel1)FUEK407},
shelfmark = {Plant Sciences / Environmental Sciences},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000297492700005},
doi = {10.1016/j.envexpbot.2011.04.015},
url = {https://juser.fz-juelich.de/record/16801},
}